DE3229940A1 - Free-piston engine - Google Patents

Free-piston engine

Info

Publication number
DE3229940A1
DE3229940A1 DE19823229940 DE3229940A DE3229940A1 DE 3229940 A1 DE3229940 A1 DE 3229940A1 DE 19823229940 DE19823229940 DE 19823229940 DE 3229940 A DE3229940 A DE 3229940A DE 3229940 A1 DE3229940 A1 DE 3229940A1
Authority
DE
Germany
Prior art keywords
piston engine
turbine
free piston
free
compressed air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19823229940
Other languages
German (de)
Inventor
Günter 4500 Osnabrück Osterburg
Heinrich 4512 Wallenhorst Stallkamp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MOTOS MOTOR GmbH
Original Assignee
MOTOS MOTOR GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MOTOS MOTOR GmbH filed Critical MOTOS MOTOR GmbH
Priority to DE19823229940 priority Critical patent/DE3229940A1/en
Publication of DE3229940A1 publication Critical patent/DE3229940A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B71/00—Free-piston engines; Engines without rotary main shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C5/00—Gas-turbine plants characterised by the working fluid being generated by intermittent combustion
    • F02C5/06—Gas-turbine plants characterised by the working fluid being generated by intermittent combustion the working fluid being generated in an internal-combustion gas generated of the positive-displacement type having essentially no mechanical power output
    • F02C5/08—Gas-turbine plants characterised by the working fluid being generated by intermittent combustion the working fluid being generated in an internal-combustion gas generated of the positive-displacement type having essentially no mechanical power output the gas generator being of the free-piston type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

Between the free-piston engine and the turbine (12) is arranged the combustion chamber (7) which processes not only some of the compressed air generated by the free-piston engine, but also the hot exhaust gases mixed with unburnt fuels as a result of the scavenging operation. The turbine (14), which is connected to the shaft (13) and which works by the Rankine circulation process by means of the waste heat occurring after the turbine (12), can be loaded with any working materials, for example fluorohydrocarbons. <IMAGE>

Description

Betr.: Patentanmeldung eines FreikolbenmotorsRe: patent application for a free piston engine

Kurbeltrieblose Verbrennungsmotoren wurden nach Plänen von Professor Junkers im Jahre 1937 gebaut und nach Patenten von R. de Pascara und R. Huber bei der SIGMA in Lyon zur Serienfertigung entwickelt.Crankshaft internal combustion engines were designed by Professor Junkers built in 1937 and based on patents from R. de Pascara and R. Huber the SIGMA in Lyon developed for series production.

Weil beim Ladungswechsel eines Verbrennungsmotors im Zweitaktverfahren mit äußerer Gemischaufbereitung die negativen Faktoren, ca. 25 % Expansionshubverlust, keine absolute Trennung der Frischgase mit den Abgas resten beim Spülvorgang, kurze Ladungswechselzeit, zusätzliche Spülpumpe den Gesamtwirkungsgrad niedrig halten, ist der hier beschriebene Freikolbenmotor eine Entwicklung, die diese negativen Faktoren ausschaltet.Because during the gas exchange of an internal combustion engine in the two-stroke process with external mixture preparation the negative factors, approx. 25% expansion stroke loss, No absolute separation of the fresh gases with the exhaust gas residues during the purging process, short Charge change time, additional flushing pump keep the overall efficiency low, the free piston engine described here is a development that has this negative Switches off factors.

Der Freikolbenmotor besteht aus zwei Zylinder (1). In den beiden Zylindern (1) bewegen sich freifliegend die Enden des Stufenkolbens (2) als Antriebskolben. Das Mittelteil ist als Luftkompressor ausgelegt und besteht aus dem Zylinder (3) und dem doppelt beaufschlagten Stufenkolben (2). Der Freikolbenmotor liefert seine Nutzenergie in Form von Druckluft in den Druckbehälter (4). Ein Teil der Druckluft wird über das Regelventil (5) zur Gemisch-Aufbereitungsanlage (6) für den Verbrennungsprozeß benutzt. Ein Teil der Druckluft strömt in die Brennkammer (7).The free piston engine consists of two cylinders (1). In the two cylinders (1) the ends of the stepped piston (2) move freely as the drive piston. The middle part is designed as an air compressor and consists of the cylinder (3) and the double-loaded stepped piston (2). The free piston engine delivers its Useful energy in the form of compressed air in the pressure vessel (4). Part of the compressed air is via the control valve (5) to the mixture preparation system (6) for the combustion process used. Part of the compressed air flows into the combustion chamber (7).

Gleichzeitig strömen die heißen Abgase die bedingt durch den Spülvorgang des Zweitaktverfahrens eine beliebige Menge unverbrannte Kraftstoffanteile enthalten können, durch die Abgasleitungen (8) und somit durch die Mischöffnungen (9) in die Brennkammer (7), wo die unverbrannten Kraftstoffanteile verbrannt werden. Der größte Teil der Druckluft im Druckbehälter (4) strömt durch das Regelventil (10) in den Außenmantel (11).At the same time, the hot exhaust gases flow due to the flushing process of the two-stroke process contain any amount of unburned fuel can, through the exhaust pipes (8) and thus through the mixing openings (9) into the Combustion chamber (7) where the unburned fuel is burned. The biggest Part of the compressed air in the pressure vessel (4) flows through the control valve (10) into the Outer jacket (11).

Bevor sich diese Druckluft mit den heißen Abgasen vermischt, dient sie zur Kühlung der Brennkammer (7). Die kinetische Energie der heißen Gase wird durch die Turbine (12) in Rotationsenergie umgewandelt.Before this compressed air mixes with the hot exhaust gases, it is used they for cooling the combustion chamber (7). The kinetic energy of the hot gases will converted into rotational energy by the turbine (12).

Weil beim verbrennungsmotorischen Arbeitsprozeß große Mengen Abwärme ungenutzt ins Freie abgeführt werden, lohnt es sich, dieses Energiepotenzial durch eine Turbine (14), die nach dem Klausius-Rankineprozeß arbeitet, zu nutzen.Because there are large amounts of waste heat in the internal combustion engine work process are discharged unused into the open air, it is worthwhile to use this energy potential to use a turbine (14) which works according to the Klausius-Rankine process.

Als Arbeitsmittel kann ein niedrigsiedender Florkohlenwasserstoff gewählt werden.A low-boiling hydrofluorocarbon can be used as the working medium to get voted.

Auf der Turbinenwelle (13) kann eine zweite Turbine (14) angebaut werden.A second turbine (14) can be attached to the turbine shaft (13) will.

Die gesamte Nutzleistung kann von der Abtriebsscheibe (15) entnommen werden.The entire useful power can be taken from the output pulley (15) will.

Luftfilter (16) Saugventile (17) Druckventile (18) Zündkerzen (19) Frischgas-Überströmrohre (20) Aufgrund der Energiesituation fossiler Brennstoffe und des Umweltschutzes kann das Kosten-Nutzenverhältnis beim hier beschriebenen Freikolbenmotor positiv bewertet werd.en.Air filter (16) Suction valves (17) Pressure valves (18) Spark plugs (19) Fresh gas overflow pipes (20) Due to the energy situation of fossil fuels and environmental protection can reduce the cost-benefit ratio when described here Free piston engine can be rated positively.

Der Freikolbenmotor kann ab ca. 50 kW-Leistung einen großen Anwendungsbereich abdecken.The free piston engine can be used in a wide range of applications from an output of around 50 kW cover.

- L e e r s e i t e -- L e r s e i t e -

Claims (2)

Betr.: Patentanmeldung eines Freikolbenmotors Patentansprüche 1 Freikolbenmotor, dadurch gekennzeichnet, daß zwischen dem Freikolbenmotor und der Turbine (12) eine Brennkammer (7) angeordnet ist, die so konstruiert ist, daß nicht nur ein Teil der vom Freikolbenmotor erzeugten Druckluft verarbeitet wird, sondern auch die vom Spü vorgang mit unverbrannten Brennstoffen versetzten heißen Abgase. Re: patent application for a free piston engine, claims 1 free piston engine, characterized in that between the free piston engine and the turbine (12) a Combustion chamber (7) is arranged, which is constructed so that not only part of the Compressed air generated by the free piston engine is processed, but also that of the flush process with unburned fuel mixed with hot exhaust gases. 2 Freikolbenmotor nach Anspruch 1, dadurch gekennzeichnet, daß mit der Welle (13) eine zweite Turbine (14) verbunden ist, die durch die gesamte anfallende Abwärme nach dem Rankine-Kreisprozeß arbeitet und mit einem beliebigen Arbeitsmedium, z. B. Florkohlenwasserstoff, betrieben werden kann.2 free piston engine according to claim 1, characterized in that with of the shaft (13) a second turbine (14) is connected, which through the entire resulting Waste heat works according to the Rankine cycle and with any working medium, z. B. fluorocarbon can be operated.
DE19823229940 1982-08-12 1982-08-12 Free-piston engine Withdrawn DE3229940A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823229940 DE3229940A1 (en) 1982-08-12 1982-08-12 Free-piston engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823229940 DE3229940A1 (en) 1982-08-12 1982-08-12 Free-piston engine

Publications (1)

Publication Number Publication Date
DE3229940A1 true DE3229940A1 (en) 1984-06-28

Family

ID=6170645

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823229940 Withdrawn DE3229940A1 (en) 1982-08-12 1982-08-12 Free-piston engine

Country Status (1)

Country Link
DE (1) DE3229940A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700667A (en) * 1984-12-05 1987-10-20 Ohna Bernt E Internal combustion engine
US4873822A (en) * 1986-07-09 1989-10-17 Henry Benaroya Energy producing installation with internal combustion engine and turbine
WO1993024754A2 (en) * 1992-05-29 1993-12-09 National Power Plc A gas compressor
GB2283543A (en) * 1992-05-29 1995-05-10 Nat Power Plc A gas compressor
USRE37603E1 (en) 1992-05-29 2002-03-26 National Power Plc Gas compressor
US20110239642A1 (en) * 2010-11-03 2011-10-06 Schwiesow Paul A Double-Acting, Two-Stroke HCCI Compound Free-Piston Rotating-Shaft Engine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700667A (en) * 1984-12-05 1987-10-20 Ohna Bernt E Internal combustion engine
US4873822A (en) * 1986-07-09 1989-10-17 Henry Benaroya Energy producing installation with internal combustion engine and turbine
WO1993024754A2 (en) * 1992-05-29 1993-12-09 National Power Plc A gas compressor
WO1993024754A3 (en) * 1992-05-29 1994-03-17 Nat Power Plc A gas compressor
GB2283543A (en) * 1992-05-29 1995-05-10 Nat Power Plc A gas compressor
US5771693A (en) * 1992-05-29 1998-06-30 National Power Plc Gas compressor
USRE37603E1 (en) 1992-05-29 2002-03-26 National Power Plc Gas compressor
CN1083941C (en) * 1992-05-29 2002-05-01 国家电力有限公司 Gas compressor
JP3504946B2 (en) 1992-05-29 2004-03-08 イノジーパブリックリミテッドカンパニー Heat recovery device
US20110239642A1 (en) * 2010-11-03 2011-10-06 Schwiesow Paul A Double-Acting, Two-Stroke HCCI Compound Free-Piston Rotating-Shaft Engine
US8127544B2 (en) * 2010-11-03 2012-03-06 Paul Albert Schwiesow Two-stroke HCCI compound free-piston/gas-turbine engine

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