CN103498744A - Engine injection pump inner leakage detection method - Google Patents
Engine injection pump inner leakage detection method Download PDFInfo
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- CN103498744A CN103498744A CN201310394809.2A CN201310394809A CN103498744A CN 103498744 A CN103498744 A CN 103498744A CN 201310394809 A CN201310394809 A CN 201310394809A CN 103498744 A CN103498744 A CN 103498744A
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- injection pump
- fuel
- engine
- fuel oil
- pump
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Abstract
The invention discloses an engine injection pump inner leakage detection method which includes the steps that firstly, a to-be-detected engine injection pump is arranged on an oil pump testing table for actual working condition simulation, secondly, a color medium reagent capable of changing the color of fuel is added into the fuel of a calibrating oil pump of the oil pump testing table, and finally, the oil pump testing table is started, the to-be-detected engine injection pump stops operating after operating for certain time and whether colored fuel flows out from an oil return hole in a flange at the front end of the injection pump is observed. The engine injection pump inner leakage detection method is simple and reasonable in process, and due to the fact that the medium reagent capable of changing the color of the fuel and in a proper proportion is added into the fuel of the calibrating oil pump so as to display the operation route of the fuel in the injection pump. Therefore, the method can judge whether inner leakage faults happen, and detection efficiency and precision are high.
Description
Technical field
The present invention relates to engine art, particularly a kind of undetected survey method in injection pump of engine.
Background technique
Injection Pump have the title of motor " heart ", and the precision of component, assembly technology require high, and various faults of different nature can occur Injection Pump in use for some time, as " leaking fault in Injection Pump ".
While leaking in the suspection Injection Pump occurs, because testing apparatus and the method for leaking in the detection of motor producer are limited, whether engine works do not have ability detection Injection Pump to leak.Analysis detects in the professional oil pump of general trust factory, and Injection Pump turns factory's investigation, and the cycle is relatively long, and affects follow-up service work.
Summary of the invention
The present invention is in order to overcome defect in above-mentioned prior art, and a kind of technique advantages of simple is provided, and detection efficiency and precision be undetected survey method in high injection pump of engine all.
For achieving the above object, according to the invention provides a kind of undetected survey method in injection pump of engine, concrete steps comprise:
At first, injection pump of engine to be detected is laid in to Fuel Injection Pump Test-Bed and carries out the actual conditions simulation;
Secondly, the fuel oil to Fuel Injection Pump Test-Bed school oil pump adds the colour developing medium reagent that changes the fuel oil color;
Whether finally, start Fuel Injection Pump Test-Bed, shut down after injection pump of engine running certain hour to be detected, observing Injection Pump front end flange spill port has colored fuel oil to emerge.
In technique scheme, colour developing medium reagent is phosphor reagent.
In technique scheme, the volume ratio that adds of phosphor reagent and fuel oil is 1:1000.
In technique scheme, the time of injection pump of engine running to be detected is four to five hours.
In technique scheme, observe when whether Injection Pump front end flange spill port has colored fuel oil to emerge and need to irradiate colour developing by ultraviolet flashlight.
Compared with prior art, the present invention has following beneficial effect: leak the detection methodologies advantages of simple in this injection pump of engine, by the fuel oil to the school oil pump, add proper proportion can change the medium reagent of fuel oil color, to manifest the path of fuel oil at the Injection Pump internal operation, and then judge whether Injection Pump the fault of interior leakage occurs, and its detection efficiency and precision are all high.
The accompanying drawing explanation
The flow chart that Fig. 1 is undetected survey method in injection pump of engine of the present invention.
Embodiment
Below in conjunction with accompanying drawing, a specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subject to the restriction of embodiment.It will be appreciated that, mentioned in following mode of execution of the present invention " on ", D score, " left side ", " right side ", " front " and " reverse side " all take the direction shown in each figure as benchmark, these words that are used for limiting direction are only for convenience of explanation, do not represent the restriction to the concrete technological scheme of the present invention.
Leak the detection methodologies advantages of simple in injection pump of engine of the present invention, by the fuel oil to the school oil pump, add proper proportion can change the medium reagent of fuel oil color, to manifest the path of fuel oil at the Injection Pump internal operation, and then judge whether Injection Pump the fault of interior leakage occurs, and its detection efficiency and precision are all high.
Below detailed description by way of example but unrestriced mode has illustrated the disclosure, should be understood that various aspect of the present disclosure can be by independent realization or the realization of being combined with other aspects.This specification clearly enables those skilled in the art to manufacture and uses us to believe for new and non-obvious improvement, describe some embodiments, alternative, modification, alternative and system applies, comprised the current best mode that is considered to carry out the inventive principle of describing in this specification.When describing element or feature and/or embodiment, be intended to expression titled with " one " " one " " be somebody's turn to do " and " described " and there are one or more in element or feature.Term " comprises " that " comprising " and " having " is intended to is comprising property, and also has extra element or feature beyond being illustrated in those specifically described elements or feature.
As shown in Figure 1, undetected survey method can utilize existing equipment fast detecting Injection Pump whether interior leakage occurs in this injection pump of engine, changes the history that in the past can only rely on professional oil pump factory to detect.Its concrete steps comprise:
At first, injection pump of engine to be detected is laid in to Fuel Injection Pump Test-Bed and carries out the actual conditions simulation.
Fuel Injection Pump Test-Bed is oil pump debugging test platform, for simulating the actual conditions of Injection Pump to its debugging, be mainly oil pump running provide power and regularly, quantitatively, the fuel oil that the school oil pump is provided of level pressure.
Secondly, the fuel oil to Fuel Injection Pump Test-Bed school oil pump adds the colour developing medium reagent that changes the fuel oil color.
This colour developing medium reagent makes original fuel oil be become color liquid is arranged by colourless liquid, to manifest the path of fuel oil at the Injection Pump internal operation, and then judges whether Injection Pump the fault of interior leakage occurs.Colour developing medium reagent can be phosphor reagent, with the volume ratio that adds of fuel oil be 1:1000.
Whether finally, start Fuel Injection Pump Test-Bed, shut down after injection pump of engine running certain hour to be detected, observing Injection Pump front end flange spill port has colored fuel oil to emerge.Emerge if any colored fuel oil, illustrate in injection pump of engine to be detected and leak.
The time of injection pump of engine running to be detected is generally four to five hours, observe when whether Injection Pump front end flange spill port has colored fuel oil to emerge and need to be irradiated by ultraviolet flashlight, so that the fuel oil colour developing that is mixed with colour developing medium reagent of emerging is convenient to observe and is detected.
To sum up, leak the detection methodologies advantages of simple in this injection pump of engine, by the fuel oil to the school oil pump, add proper proportion can change the medium reagent of fuel oil color, to manifest the path of fuel oil at the Injection Pump internal operation, and then judge whether Injection Pump the fault of interior leakage occurs, and its detection efficiency and precision are all high.
Above disclosed be only several specific embodiment of the present invention, still, the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (5)
1. the interior undetected survey method of injection pump of engine, is characterized in that, concrete steps comprise:
At first, injection pump of engine to be detected is laid in to Fuel Injection Pump Test-Bed and carries out the actual conditions simulation;
Secondly, the fuel oil to Fuel Injection Pump Test-Bed school oil pump adds the colour developing medium reagent that changes the fuel oil color;
Whether finally, start Fuel Injection Pump Test-Bed, shut down after injection pump of engine running certain hour to be detected, observing Injection Pump front end flange spill port has colored fuel oil to emerge.
2. undetected survey method in injection pump of engine according to claim 1, it is characterized in that: described colour developing medium reagent is phosphor reagent.
3. undetected survey method in injection pump of engine according to claim 2, it is characterized in that: the volume ratio that adds of described phosphor reagent and fuel oil is 1:1000.
4. undetected survey method in injection pump of engine according to claim 1, it is characterized in that: the time of described injection pump of engine running to be detected is four to five hours.
5. according to undetected survey method in the described injection pump of engine of any one in claim 1 to 4, it is characterized in that: described observation Injection Pump front end flange spill port need to irradiate colour developing by ultraviolet flashlight while whether having colored fuel oil to emerge.
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CN201310394809.2A CN103498744A (en) | 2013-08-30 | 2013-08-30 | Engine injection pump inner leakage detection method |
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CN201310394809.2A CN103498744A (en) | 2013-08-30 | 2013-08-30 | Engine injection pump inner leakage detection method |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105443292A (en) * | 2015-12-30 | 2016-03-30 | 广西玉柴机器股份有限公司 | Internal leakage detection method of fuel injection pump |
Citations (6)
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GB2307558A (en) * | 1995-11-23 | 1997-05-28 | Bosch Gmbh Robert | Device for indicating leakage in hollow bodies which convey fluids |
CN1181125A (en) * | 1995-04-07 | 1998-05-06 | 罗伯特·博施有限公司 | Device for deteching leak in fuel-supply system |
US6101867A (en) * | 1998-02-05 | 2000-08-15 | Bright Solutions, Inc. | Dye concentrate |
CN2541836Y (en) * | 2002-05-14 | 2003-03-26 | 上海亿邦工贸有限公司 | Fluorescent tracer leak detector |
CN1550662A (en) * | 2003-05-15 | 2004-12-01 | �ִ��Զ�����ʽ���� | Fuel leak test system for fuel injection system of diesel engine and methods thereof |
JP2006348829A (en) * | 2005-06-15 | 2006-12-28 | Bosch Corp | Injector inspecting method |
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2013
- 2013-08-30 CN CN201310394809.2A patent/CN103498744A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1181125A (en) * | 1995-04-07 | 1998-05-06 | 罗伯特·博施有限公司 | Device for deteching leak in fuel-supply system |
GB2307558A (en) * | 1995-11-23 | 1997-05-28 | Bosch Gmbh Robert | Device for indicating leakage in hollow bodies which convey fluids |
US6101867A (en) * | 1998-02-05 | 2000-08-15 | Bright Solutions, Inc. | Dye concentrate |
CN2541836Y (en) * | 2002-05-14 | 2003-03-26 | 上海亿邦工贸有限公司 | Fluorescent tracer leak detector |
CN1550662A (en) * | 2003-05-15 | 2004-12-01 | �ִ��Զ�����ʽ���� | Fuel leak test system for fuel injection system of diesel engine and methods thereof |
JP2006348829A (en) * | 2005-06-15 | 2006-12-28 | Bosch Corp | Injector inspecting method |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105443292A (en) * | 2015-12-30 | 2016-03-30 | 广西玉柴机器股份有限公司 | Internal leakage detection method of fuel injection pump |
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Application publication date: 20140108 |