CN102003238B - Engine braking device - Google Patents
Engine braking device Download PDFInfo
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- CN102003238B CN102003238B CN 200910194859 CN200910194859A CN102003238B CN 102003238 B CN102003238 B CN 102003238B CN 200910194859 CN200910194859 CN 200910194859 CN 200910194859 A CN200910194859 A CN 200910194859A CN 102003238 B CN102003238 B CN 102003238B
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- blind hole
- valve
- engine braking
- spherical surface
- rocking arm
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Abstract
The invention relates to a novel engine braking device which comprises an exhaust valve control mechanism, wherein the exhaust valve control mechanism comprises a driving force input cam, a cam driven wheel, a rocker arm and a rocker arm shaft; the driving force input cam is arranged outside the cam driven wheel; the other end of the rocker arm is provided with a vertical guide piston, a horizontal drive piston and a vertical braking plunger; two connecting rods are arranged in the guide piston; the convex spherical surface at the upper end of the upper connecting rod is matched with the concave spherical surface of a valve clearance adjusting screw; the convex spherical surface at the lower end of the lower connecting rod is matched with the concave spherical surface of the braking plunger; and a valve rod connecting element of an exhaust valve is arranged below the braking plunger. The driving force input cam periodically transfers the power of an engine to the rocker arm and controls a clearance between the rocker arm and the valve rod connecting element of the exhaust valve by utilizing an electromagnetic valve, thereby realizing the switch of two states of brake and normal work, reducing the size and the weight of a brake and having no high oil pressure and leakage, deformation and load fluctuation caused by the high oil pressure.
Description
Technical field:
The present invention relates to mechanical field, relate in particular to the braking device of motor, particularly a kind of engine braking apparatus.
Background technique:
In the prior art, internal-combustion engine is known altogether as the method behaviour of brake tool, only needed motor temporarily is converted to compressor.Fuel oil is cut off in this conversion, open outlet valve when the engine piston compression stroke finishes or when approach finishing, allow compressed gas (being air during braking) to be released, the motor energy that pressurized gas absorbs in compression stroke, can not turn back to engine piston at expansion stroke subsequently, but dissipate by exhaust and the radiation system of motor.Final result is effective engine braking, slows down the speed of vehicle.
A precedent of engine brake is to be disclosed by the U.S. Patent number 3220392 that comings (Cummins) provides, and is commercially very successful according to the engine braking system of this patent manufacturing.But, this type of engine braking system is the annex of overhead on motor.For this type of engine brake is installed, between cylinder and valve gap, to add packing ring, therefore, increased extraly height, weight and the cost of motor.Above-mentioned these problems are because engine braking system is used as an annex of motor, rather than constituent element of motor or integrated part cause.
Engine brake of the prior art is delivered to the outlet valve that will open through oil hydraulic circuit with the machinery input.Be usually included in reciprocating main piston in the master piston bore on the oil hydraulic circuit, this to-and-fro motion comes from the machinery input of motor, such as the shaking of oil sprayer rocking arm, the hydraulic fluid that moves through of main piston is delivered to sub-piston on the oil hydraulic circuit, make its to-and-fro motion in slave piston bore, sub-piston acts on the outlet valve directly or indirectly, produces the valve actuation of engine braking running.
Therefore, above-mentionedly there is another shortcoming by hydraulically powered conventional engines break, be contractibility or the distortion of hydraulic system, this flexibility with liquid is relevant, a large amount of compressions that high flexibility causes brake valve to rise reduce, valve rises reduces the increase that causes valve to carry, and the increase that valve carries causes higher flexibility, causes a kind of vicious circle.In addition, the valve liter that is caused by hydraulic pressure distortion reduces to increase along with the increase of engine speed, and to rise trend on the contrary with the desired brake valve of engine braking performance.In order to reduce flexible hydraulic, must use large diameter hydraulic piston, increase volume and weight.And oily stream need to make for a long time enlarged bore piston stretch out or retract, and causes that braking system inertia is large, reaction is slow.
Summary of the invention:
The object of the present invention is to provide a kind of engine braking apparatus, the overhead mode that described this engine braking apparatus will solve engine braking system in the prior art has increased the height of motor and the technical problem of manufacture cost, will solve simultaneously the technical problem that braking system inertia is large, reaction is slow that hydraulically powered engine brake exists.
This engine braking apparatus of the present invention is made of an outlet valve control mechanism, wherein, described outlet valve control mechanism is by the driving force input cam; rocking arm and pitman arm shaft consist of; the middle part of described rocking arm is arranged on the pitman arm shaft; rocking arm one end is provided with vertical blind hole and horizontal blind hole; vertically blind hole intersects with horizontal blind hole; be provided with guide piston in the horizontal blind hole; described guide piston the inner is provided with piston hole; be provided with driven plunger in the described piston hole; described guide piston middle part is provided with along its diametric grooving; described piston hole and described grooving intersect and be three-port structure; described vertical blind hole bottom is equipped with spool; described spool upper end is provided with another vertical blind hole; the transition conical surface outside described another vertical blind hole opening is provided with and is tilted to; be provided with the valve clearance adjusting screw on the described rocking arm; be provided with connecting rod and lower link between valve clearance adjusting screw bottom surface and another the vertical blind hole bottom surface; upward connecting rod and lower link pass described grooving, and described driving force input cam mechanism is arranged on the other end of rocking arm.
Further, be provided with vertically the fluid passage in the described pitman arm shaft, be provided with radial hole along radial direction, be provided with fluid passage in the described rocking arm, an end of described fluid passage is communicated with described radial hole, and the other end is communicated with described horizontal hole.
Further, described spool upper end is provided with an interior concave spherical surface, be provided with the described transition conical surface between the upper-end surface of described spool and the described concave spherical surface, described valve clearance adjusting screw lower end is passed described rocking arm and is entered described vertical blind hole bottom, described valve clearance adjusting screw upper end is fixed by nut, described valve clearance adjusting screw lower end is provided with another concave spherical surface, the upper end of described upper connecting rod is protruding sphere, the lower end of described upper connecting rod is protruding another protruding sphere, the upper end of described lower link is the 3rd concave spherical surface, the lower end of described lower link is the 3rd protruding sphere, described protruding sphere cooperates with described another concave spherical surface, described the 3rd protruding sphere cooperates with described concave spherical surface, and described the 3rd concave spherical surface cooperates the formation revolute pair with described another protruding sphere.
Further, described vertical blind hole upper-end surface is higher than described horizontal blind hole, and described horizontal blind hole and described vertical blind hole intersection up and down side are provided with chamfering.
Further, described grooving right-hand member upper and lower sides is provided with another chamfering, described grooving width direction and described on connecting rod and lower link be Spielpassung.
Further, described spool lower end is fixed with an end of spring, the described spring the other end is fixed on the described rocking arm by screw, be fixed with a spring seat that is ring in described horizontal blind hole outer end by snap ring, be provided with another spring between described guide piston outer end and the described spring seat.
Further, described piston hole is blind hole, and described guide piston middle part is provided with along its axial discharge orifice, and described discharge orifice is communicated with described grooving hole and another axial blind hole.
Further, described horizontal blind hole outer end and described rocking arm end face, the described fluid passage the other end is communicated with described horizontal blind hole is inner, and the diameter of described fluid passage is less than described horizontal blind hole diameter, described vertical blind hole lower end flushes with described rocking arm lower end
Further, described driving force input cam is provided with at least one convex portion on the basic circle within it.
Further, the fluid passage in the pitman arm shaft is connected with oil drain out with oil-feed port in the three-way magnetic valve by a spool, and during described spool downslide, the interior fluid passage of pitman arm shaft is communicated with described oil-feed port.
Working principle of the present invention is: the driving force input cam is connected with the power take-off mechanism of motor, and the driving force input cam makes rocker arms roll under the motivational drive of motor, and the air discharging valve bar link is arranged on the control valve rod of engine exhaust valve.When needing motor to be converted to engine braking from normal working, by a controller to three-way magnetic valve sending action signal.Three-way magnetic valve is by open-minded by the electric current of its positive terminal and negative terminal, the spool of solenoid valve glides, open oil-feed port, machine oil is by the brake fluid networking, comprise otch and hydraulic channel in pitman arm shaft fluid passage and radial hole, the rocking arm, flow to braking drive organ, oil pressure overcomes the load of guide piston right-hand member spring, guide piston is pushed away to the right in horizontal blind hole, rest on spring seat and the snap ring.Driven plunger continues to move to right, and upper and lower linkage mechanism is pushed away directly, makes spool reach operating position.When not needing engine braking, the engine braking control mechanism cuts out draining, and driven plunger and guide piston are not subjected to oil pressure, to moving to left, rests on the left side of horizontal hole under the effect of guide piston right-hand member spring.Spool is got back to off position upwards moving under the effect of brake spring in vertical hole, namely separate with the motor normal operation position of " pass ".Guide piston undercut slots right-hand member is setting up and down chamfering, simultaneously horizontal blind hole and vertical blind hole intersect the chamfering setting up and down on the left side, like this, in the situation of the angle constant (stroke that is spool is constant) of connecting rod and lower link in the assurance, braking valve clearance adjusting screw is with brake spring, upper connecting rod, lower link and spool can be moved up and down synchronously the adjustable brake valve clearance.
The present invention and prior art compare, and its effect is actively with obvious.The present invention utilizes cam that the power of motor periodically is delivered to rocking arm, utilize the exhaust action of rocking arm operations platoon air valve, utilize the gap between electromagnetic valve rocking arm and the outlet valve drive end, realize the switching of braking and engine work two states and keep, can be integrated with motor, thereby reduce the volume and weight of engine brake, need not adopt the hydraulic braking control valve, reduced cost, reduced reaction time, the leakage that does not have high oil pressure and high oil pressure to cause, distortion and load fluctuation, brake valve rises and is not subjected to oil temperature, the impact of oil pressure and air content, brake valve rises can obtain less value, reduces the requirement to engine piston and valve clearance.
Description of drawings:
Fig. 1 is the structural representation (not drawing spool, driven plunger and guide piston part among Fig. 1) of a kind of engine braking apparatus of the present invention.
Fig. 2 is the schematic representation that the braking drive organ in a kind of engine braking apparatus of the present invention is in the off-position.
Fig. 3 is the schematic representation that the braking drive organ in a kind of engine braking apparatus of the present invention is in " opening " position.
Fig. 4 is the schematic representation of the working state of fluid passage in a kind of engine braking apparatus of the present invention and three-way magnetic valve.
Fig. 5 is the schematic representation of another working state of fluid passage in a kind of engine braking apparatus of the present invention and three-way magnetic valve.
Embodiment:
Embodiment 1:
as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4 and Figure 5, a kind of engine braking apparatus 100 of the present invention, by an air bleeding valve controlling organization 200, formed, wherein, described air bleeding valve controlling organization 2002 is by driving force input cam 2302, cam follower wheel 2352, rocking arm 2102 and rocker arm shaft 205 form, the middle part of described rocking arm 2102 is arranged on rocker arm shaft 205, described driving force input cam 2302 is arranged on outside cam follower wheel 2352, in driving force input cam 2302, the excircle of the rotation round of protuberance and cam follower wheel 2352 intersects, rocking arm 2102 arranged outside have a biasing back-moving spring 1982, in described rocking arm 2102, be provided with fluid passage 214, in rocker arm shaft 205, be provided with vertically fluid passage 211, along a radius, be provided with a radial hole 212, described radial hole 212 is communicated with described fluid passage 211, in rocking arm 210, be provided with an otch 213, described otch 213 is communicated with radial hole 212 and described fluid passage 214 1 ends respectively, the other end of rocking arm 2102 is provided with a vertical blind hole 190 and a horizontal blind hole 260, described horizontal blind hole 162 outer ends and described rocking arm 2102 end face, described fluid passage 214 other ends and described horizontal inner connection of blind hole 260, the diameter of described fluid passage 214 is less than described horizontal blind hole 260 diameters, described vertical blind hole 190 lower ends flush with described rocking arm 2102 lower ends, described vertical blind hole 190 upper ends and described horizontal blind hole 260 intersect and are three-port structure, described vertical blind hole 190 upper surfaces are higher than described horizontal blind hole 260, described horizontal blind hole 260 is provided with chamfering 243 with described vertical blind hole 190 up and down, intersection sides, in described horizontal blind hole 260, be provided with guide piston 162, between described guide piston 162 outer walls and described horizontal blind hole 260, being provided with liquid sealing is connected, described guide piston 162 the inners are provided with along its axial piston hole 183, described piston hole 183 is blind holes, in described piston hole 183, be provided with driven plunger 164, between described driven plunger 164 outer walls and described piston hole 183, being provided with liquid sealing is connected, at described guide piston 162 middle parts, be provided with along its diametric grooving 137, described grooving 137 is grooves, described grooving 137 right-hand member upper and lower sides are provided with another chamfering 163, described piston hole 183 bottoms and described grooving 137 intersect the formation three-port structure, described vertical blind hole 190 bottoms are provided with spool 160, described spool 160 upper ends are provided with an interior concave spherical surface 128, between the upper surface of described spool 160 and described concave spherical surface 128, be provided with the transition conical surface 126, on described rocking arm 2102, be provided with valve clearance adjustment screw 1102, described valve clearance adjustment screw 1102 lower ends are passed described rocking arm 2102 and are entered described vertical blind hole 190 bottoms, described valve clearance adjustment screw 1102 upper ends are fixing by nut 1052, described valve clearance adjustment screw 1102 lower ends are provided with another concave spherical surface 122, in described grooving 137, be provided with connecting rod 184 and lower link 186, the width of described grooving 137 is greater than the width of described upper connecting rod 184 and lower link 186, the upper end of described upper connecting rod 184 is protruding sphere 124, the lower end of described upper connecting rod 184 is protruding another protruding sphere, the upper end of described lower link 186 is the 3rd concave spherical surface 125, the lower end of described lower link 186 is the 3rd protruding sphere 1241, the protruding sphere 124 of described upper connecting rod 184 upper ends coordinates with another concave spherical surface 122 of described valve clearance adjustment screw 1102 lower ends, described lower link 186 lower ends the 3rd protruding sphere 1241 with the concave spherical surface 128 of described spool 160 upper ends, coordinate, the 3rd concave spherical surface 125 of described lower link 186 upper ends coordinates the formation revolute pair with another protruding sphere of described upper connecting rod 184 lower ends, described spool 160 lower ends are fixed with an end of spring 177, described spring 177 other ends are fixed on described rocking arm 2102 by screw 179, in described horizontal blind hole 260 outer ends, by snap ring 157, be fixed with a spring base 158 that is annular, between described guide piston 162 outer ends and described spring base 158, be provided with another spring 156, another spring 156 is given guide piston 162 bias power left, make described guide piston 162 inner faces contact 246 with described horizontal blind hole 260 inner faces, simultaneously, it is skewed that described upper connecting rod 184 and lower link 186 are "<", described upper connecting rod 184 lower ends contact with driven plunger 164 outer faces with lower link 186 upper ends, described driven plunger 164 inner faces contact with described horizontal blind hole 260 inner faces 246.
Further, described guide piston 162 outer ends are provided with another axial blind hole, and described another spring 156 1 ends are arranged in described another axial blind hole, and the other end of described another spring 156 is connected with described spring seat 158.
Further, described guide piston middle part is provided with along its axial discharge orifice 168, and described discharge orifice 168 is communicated with described piston hole 183 and another axial blind hole.Described discharge orifice 168 is communicated with described grooving 137 spaces, and then is communicated with described vertical blind hole 190, in order to avoid the vertical any oil pressure of blind hole 190 interior generations.
Further, described grooving 137 width direction and described on connecting rod 184 and lower link 186 be Spielpassung, can realize leading roles to upper connecting rod 184 and lower link 186.
Further, described driving force input cam 2302 is provided with two convex portions 232,233 on the basic circle 2252 within it.
Further; the oil-feed port 111 of the fluid passages 211 in the pitman arm shaft 205 by in a spool 58 and the three-way magnetic valve 51 is connected with oil drain out and is connected; during described spool 58 downslide, pitman arm shaft 205 interior fluid passages 211 are communicated with described oil-feed port 111.
The working procedure of present embodiment is: driving force input cam 2302 is connected with the power take-off mechanism (not shown) of motor, and driving force input cam 2302 shakes rocking arm 2102 under the motivational drive of motor.Air discharging valve bar link 116 is arranged on the control valve rod 3001 of engine exhaust valve 300.When needing motor to be converted to engine braking from normal working, by a controller (not shown) to three-way magnetic valve 51 sending action signals.Three-way magnetic valve 51 is by open-minded by the electric current of its positive terminal 55 and negative terminal 57, the spool 58 of solenoid valve glides, open oil-feed port 111, allow in the horizontal hole 260 that hydraulic fluid enters into rocking arm by the otch 213 in the fluid passage 211 in the pitman arm shaft 205 and radial hole 212, the rocking arm 210 and fluid passage 214, oil pressure overcomes the load of guide piston 162 right-hand member springs 156, guide piston 162 is pushed away to the right in horizontal hole, rest on spring seat 158 and the snap ring 157.Driven plunger 164 continues to move to right, upper and lower linkage mechanism 184,186 is pushed away directly, make spool 160 reach as shown in Figure 3 operating position, this moment, the stroke of spool 160 was 130, eliminate or reduce distance between spool 160 and the exhasut valve stem link 116, this stroke 130 is by the axial length decision of grooving 137.One discharge orifice 168 is arranged, to avoid any oil pressure of vertical blind hole 190 interior generations in the guide piston 162.When not needing engine braking, the engine braking control mechanism cuts out draining, and driven plunger 164 and guide piston 162 are not subjected to oil pressure, to moving to left, rests on the left side 146 of horizontal hole under the effect of guide piston right-hand member spring 156.Spool 160 is got back to off position as shown in Figure 2 upwards moving under the effect of brake spring 177 in vertical blind hole 190, namely separate with the motor normal operation position of " pass ".Guide piston 162 undercut slots 137 right-hand members are setting up and down chamfering 163, simultaneously horizontal blind hole 260 and vertical blind hole 190 intersect the chamfering setting up and down 243 on the left side, like this, the angle of connecting rod 184 and lower link 186 is constant on guaranteeing, be in the constant situation of the stroke 130 of spool 160, braking valve clearance adjusting screw 1102 can move up and down upper connecting rod 184, lower link 186 and spool 160 the adjustable brake valve clearance synchronously with brake spring 177.
In the embodiment shown in fig. 1, also be provided with another outlet valve 300 in the motor, be provided with control valve rod 3002 in this outlet valve 300, be provided with another valve spring 3102 on the control valve rod, valve spring 3101 and valve spring 3102 are arranged between engine cylinder cover 500 and the valve bridge 400, and valve bridge 400 makes 300 interlocks of two outlet valves.Be provided with exhaust valve actuation device 200 on the valve bridge 400, exhaust valve actuation device 200 is made of exhaust valve actuation cam 230, exhaust valve actuation rocking arm 210 and valve bridge 400.Exhaust-valve cam 230 has a large convex portion 220 on the basic circle 225 within it, be installed on the exhaust valve rocker arm axle 2051 exhaust valve actuation rocking arm 210 swing types, one end of exhaust valve actuation rocking arm 210 is provided with cam follower wheel 235, and the other end of exhaust valve actuation rocking arm 210 contacts with valve bridge 400 tops.When this arrestment mechanism is in "open" state shown in Figure 3, because spool 160 stretches out downwards, the gap of spool 160 lower ends and exhasut valve stem link 116 upper ends is eliminated or reduces, under the kick 232,233 of cam 2302 acts on, spool 160 is depressed exhasut valve stem link 116, realizes exhaust brake.
Present embodiment is that the present invention will be described, rather than limits it.In fact, those people that are expert at one's trade can show to change places and in scope of the present invention and principle the present invention made amendment and change.For instance, illustrated or certain part of functions described of concrete mechanism can be used for another concrete mechanism, and then obtains a new mechanism.Therefore, the present invention will comprise above-mentioned modification and change, as long as they belong within appended claim or the scope suitable with requirement power.
Claims (9)
1. engine braking apparatus, consisted of by an outlet valve control mechanism, it is characterized in that: described outlet valve control mechanism is by the driving force input cam; rocking arm and pitman arm shaft consist of; the middle part of described rocking arm is arranged on the pitman arm shaft; rocking arm one end is provided with vertical blind hole and horizontal blind hole; vertically blind hole and horizontal blind hole intersect; be provided with guide piston in the horizontal blind hole; described guide piston the inner is provided with piston hole; be provided with driven plunger in the described piston hole; described guide piston middle part is provided with along its axial guiding grooving; described piston hole communicates with described guiding grooving; described vertical blind hole bottom is equipped with spool; described spool upper end is provided with another vertical blind hole, is provided with the valve clearance adjusting screw on the described rocking arm, is provided with connecting rod and lower link between valve clearance adjusting screw bottom surface and described another vertical blind hole bottom surface; upper connecting rod and lower link pass described guiding grooving, and described driving force input cam is arranged on the other end of rocking arm.
2. a kind of engine braking apparatus as claimed in claim 1, it is characterized in that: be provided with vertically the fluid passage in the described pitman arm shaft, be provided with radial hole along radial direction, be provided with fluid passage in the described rocking arm, one end of described fluid passage is communicated with described radial hole, and the other end is communicated with described horizontal blind hole.
3. a kind of engine braking apparatus as claimed in claim 1, it is characterized in that: described spool upper end is provided with a concave spherical surface, described valve clearance adjusting screw lower end is passed described rocking arm and is entered described vertical blind hole bottom, described valve clearance adjusting screw upper end is fixed by nut, described valve clearance adjusting screw lower end is provided with another concave spherical surface, the upper end of described upper connecting rod is protruding sphere, the lower end of described upper connecting rod is another protruding sphere, the upper end of described lower link is the 3rd concave spherical surface, the lower end of described lower link is the 3rd protruding sphere, the protruding sphere of described upper small end cooperates with another concave spherical surface of described valve clearance adjusting screw lower end, the 3rd protruding sphere of described lower link lower end cooperates with the concave spherical surface of described spool upper end, and the 3rd concave spherical surface of described lower link upper end cooperates the formation revolute pair with another protruding sphere of described upper connecting rod lower end.
4. a kind of engine braking apparatus as claimed in claim 1, it is characterized in that: described vertical blind hole upper-end surface is higher than described horizontal blind hole.
5. a kind of engine braking apparatus as claimed in claim 1 is characterized in that: described guiding grooving width direction and described on connecting rod and lower link be Spielpassung.
6. a kind of engine braking apparatus as claimed in claim 1, it is characterized in that: described spool lower end is fixed with an end of spring, the described spring the other end is fixed on the described rocking arm by screw, be fixed with a spring seat that is ring in described horizontal blind hole outer end by snap ring, be provided with another spring between described guide piston outer end and the described spring seat.
7. a kind of engine braking apparatus as claimed in claim 2, it is characterized in that: the diameter of described fluid passage is less than described horizontal blind hole diameter.
8. a kind of engine braking apparatus as claimed in claim 1, it is characterized in that: described driving force input cam is provided with at least one convex portion on the basic circle within it.
9. a kind of engine braking apparatus as claimed in claim 2, it is characterized in that: the fluid passage in the pitman arm shaft is connected with oil drain out with oil-feed port in the three-way magnetic valve by a spool, when described spool glided, the fluid passage in the pitman arm shaft was communicated with described oil-feed port.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910194859 CN102003238B (en) | 2009-08-31 | 2009-08-31 | Engine braking device |
| EP11006452.4A EP2439381B1 (en) | 2009-01-05 | 2009-12-28 | Engine braking devices and methods |
| RU2011132887/06A RU2479735C1 (en) | 2009-01-05 | 2009-12-28 | Device and methods for overrunning |
| EP09837091.9A EP2384396B1 (en) | 2009-01-05 | 2009-12-28 | Engine braking devices and methods |
| BRPI0922516-1A BRPI0922516B1 (en) | 2009-01-05 | 2009-12-28 | APPARATUS TO CHANGE AN INTERNAL COMBUSTION ENGINE FROM A NORMAL ENGINE OPERATION FOR AN ENGINE BRAKING OPERATION AND METHOD FOR CONVERTING AN INTERNAL COMBUSTION ENGINE FROM A NORMAL ENGINE OPERATION TO AN ENGINE BRAKING OPERATION |
| PCT/US2009/069622 WO2010078280A2 (en) | 2009-01-05 | 2009-12-28 | Engine braking devices and methods |
| KR1020117018023A KR101290440B1 (en) | 2009-01-05 | 2009-12-28 | Engine braking devices and methods |
| EP11006451.6A EP2444602B1 (en) | 2009-01-05 | 2009-12-28 | Engine braking devices and methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910194859 CN102003238B (en) | 2009-08-31 | 2009-08-31 | Engine braking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102003238A CN102003238A (en) | 2011-04-06 |
| CN102003238B true CN102003238B (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910194859 Active CN102003238B (en) | 2009-01-05 | 2009-08-31 | Engine braking device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202140127U (en) * | 2010-02-26 | 2012-02-08 | 上海尤顺汽车部件有限公司 | Driving mechanism of engine braking device |
| CN104279020B (en) * | 2013-07-10 | 2017-11-24 | 上海尤顺汽车部件有限公司 | A kind of solid chain type engine valve actuator |
| EP4018081A4 (en) * | 2019-08-19 | 2024-02-14 | Shanghai Universoon Autotech Co Ltd | Engine valve actuating apparatus |
| CN110486113A (en) * | 2019-08-19 | 2019-11-22 | 上海尤顺汽车部件有限公司 | A kind of engine valve actuations mechanism |
| CN113482742A (en) * | 2021-03-01 | 2021-10-08 | 褚平华 | Valve driving device of engine and driving method thereof |
| CN114893273A (en) * | 2021-06-11 | 2022-08-12 | 褚平华 | Valve driving device of engine and driving method thereof |
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|---|---|---|---|---|
| US6189504B1 (en) * | 1997-11-24 | 2001-02-20 | Diesel Engine Retarders, Inc. | System for combination compression release braking and exhaust gas recirculation |
| US6244257B1 (en) * | 1995-08-08 | 2001-06-12 | Diesel Engine Retarders, Inc. | Internal combustion engine with combined cam and electro-hydraulic engine valve control |
| CN1900491A (en) * | 2006-07-20 | 2007-01-24 | 姬腾飞 | Timing and lift continuous changeable device for engine air valve |
| CN201513211U (en) * | 2009-08-31 | 2010-06-23 | 上海尤顺汽车部件有限公司 | Novel engine braking device |
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2009
- 2009-08-31 CN CN 200910194859 patent/CN102003238B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6244257B1 (en) * | 1995-08-08 | 2001-06-12 | Diesel Engine Retarders, Inc. | Internal combustion engine with combined cam and electro-hydraulic engine valve control |
| US6189504B1 (en) * | 1997-11-24 | 2001-02-20 | Diesel Engine Retarders, Inc. | System for combination compression release braking and exhaust gas recirculation |
| CN1900491A (en) * | 2006-07-20 | 2007-01-24 | 姬腾飞 | Timing and lift continuous changeable device for engine air valve |
| CN201513211U (en) * | 2009-08-31 | 2010-06-23 | 上海尤顺汽车部件有限公司 | Novel engine braking device |
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Address after: Fengxian District Shanghai Fengcheng town in 201411 Road No. 353 Patentee after: Shanghai Youshun Automobile Technology Co.,Ltd. Address before: Fengxian District Shanghai Fengcheng town in 201411 Road No. 353 Patentee before: Shanghai Universoon Autoparts Co.,Ltd. |