[go: up one dir, main page]

EP0126812A1 - Brennkraftmaschinen mit innerer Verbrennung - Google Patents

Brennkraftmaschinen mit innerer Verbrennung Download PDF

Info

Publication number
EP0126812A1
EP0126812A1 EP83302959A EP83302959A EP0126812A1 EP 0126812 A1 EP0126812 A1 EP 0126812A1 EP 83302959 A EP83302959 A EP 83302959A EP 83302959 A EP83302959 A EP 83302959A EP 0126812 A1 EP0126812 A1 EP 0126812A1
Authority
EP
European Patent Office
Prior art keywords
stroke
fuel
cylinder
air mixture
compressed
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Withdrawn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
EP83302959A
Other languages
English (en)
French (fr)
Inventor
Leonhard Johann Gerhard Pal
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.)
Individual
Original Assignee
Individual
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
Priority to AU83764/82A priority Critical patent/AU8376482A/en
Priority to DE19833317128 priority patent/DE3317128A1/de
Application filed by Individual filed Critical Individual
Priority to EP83302959A priority patent/EP0126812A1/de
Publication of EP0126812A1 publication Critical patent/EP0126812A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B75/021—Engines characterised by their cycles, e.g. six-stroke having six or more strokes per cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/01—Internal exhaust gas recirculation, i.e. wherein the residual exhaust gases are trapped in the cylinder or pushed back from the intake or the exhaust manifold into the combustion chamber without the use of additional passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/37—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with temporary storage of recirculated exhaust gas
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
    • F02D41/3017—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used
    • F02D41/3058—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used the engine working with a variable number of cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis

Definitions

  • the present invention relates to improvements in the operation of internal combustion engines, and to the reduction of impurities in the exhaust gases of such engines.
  • the invention is directed to an internal combustion engine, typically an automobile engine, having a six stroke cycle.
  • the present day four stroke petrol or diesel engine, as used in - motor vehicles, is known to be inefficient mainly because it has to operate over a Wide range of speeds.
  • an automobile engine can convert only about one fifth of the energy in the gasoline fuel into driving power because a large amount of heat is generated according to the Carnot cycle.
  • Another serious disadvantage of a Carnot cycle gasoline engine is the small ratio of net work to gross work (net work refers to the difference between the work produced by expansion of burning gases (gross work) and the work of compression of input gases).
  • the present invention utilises this property to decrease the fuel consumption per unit distance yet retaining sufficient power to maintain cruising speeds.
  • the exhaust gases contain a significant percentage of unburnt fuel.
  • the present invention allows the engine to use the fuel more efficiently, thereby reducing the proportion of impurities in the exhaust gases.
  • the six stroke cycle comprises the following piston strokes in cyclical succession:-
  • the preferred embodiment of the present invention is characterised by a nmber of features:-
  • the six stroke cycle comprises the following piston strokes in cyclical succession:-
  • the temperature and pressure of the fuel/air mixture have been increased.
  • the pressure is reduced but as the whole process occurs at a rapid rate, the heat in the fuel/air mixture is maintained to a significant extent.
  • the friction between the piston and the cylinder adds further heat to the mixture.
  • the fuel/air mixture is raised to a temperature higher than that at the end of compression strokes in conventional four stroke engines. This results in more thorough combustion of the fuel/air mixture.
  • a turbo-charger can be used on the six stroke engine of the present invention in the same manner as conventional four stroke engines.
  • the six cycles of the preferred embodiment operate as follows.
  • the intake stroke 7 begins as the piston 1 leaves top dead centre (TDC).
  • TDC top dead centre
  • BDC bottom dead centre
  • the piston 1 is then pushed up by the rotating crankshaft 2 via the connecting rod 3 in a first compression stroke 8.
  • the ignition system produces an electric spark at the spark plug 13.
  • the spark 13 ignites the compressed mixture and, as the mixture burns, very high pressure and temperature are produced in the combustion chamber 6 thereby forcing the piston 1 down in a first power stroke 9.
  • the pressurised combustion vapours which do the work consist of heated nitrogen left over from the charge of air, water vapour, carbon dioxide, carbon monoxide, unburnt fuel and a few minor ingredients which are the chemical result of combustion.
  • the mechanical work is produced by the pressure exerted by the heated combustion vapours on the piston. The hotter the pressurised vapour becomes, the greater will be the pressure that is produced, and the greater will be the power of the engine.
  • the exhaust valve opens just before the piston reaches BDC.
  • the exhaust valve opens 58 0 before BDC when the piston is 3-4 cm from BDC.
  • the exhaust valve does not open, and pressure is exerted on the piston all the way down to BDC. Due to the extra period that pressure is exerted on the piston, extra power is imparted to the crankshaft and the excess energy is stored in the flywheel. This excess energy is used to compress the combustion vapours in a second compression stroke.
  • Compressing the already heated combustion vapours raises the temperature further so that unburnt fuel components are ignited.
  • an electric spark can be optionally provided at the end of the second compression stroke.
  • the burning of the remaining fuel portions causes a further power stroke 11.
  • the combustion vapours undergo expansion which results in a large drop in their pressure and temperature. This further increases the efficiency of the engine.
  • the second power stroke is followed by an exhaust stroke during which the combustion gases are expelled from the cylinder.
  • a six stroke internal combustion engine in which the air/fuel mixture is compressed twice before ignition.
  • the pressure and temperature of the compressed fuel/air mixture at the end of the second compression stroke are higher than in normal four stroke engines and greater efficiency is obtained.
  • the six stroke cycle comprises the following piston strokes in cyclical succession:
  • an inlet valve opens to admit air (no fuel) into the cylinder when the piston travels down. This air cools the cylinder wall and piston. On the second exhaust stroke, the air is expelled into the exhaust manifold when it forces out any remaining combustion gases. This additional two-stroke phase acts as an air pump on a four stroke engine.
  • the six stroke cycle comprises the following piston strokes in cyclical succession:
  • the present invention is applicable to rotary engines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
EP83302959A 1981-11-23 1983-05-23 Brennkraftmaschinen mit innerer Verbrennung Withdrawn EP0126812A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU83764/82A AU8376482A (en) 1981-11-23 1981-11-23 6-stroke i.c. engine
DE19833317128 DE3317128A1 (de) 1983-05-06 1983-05-06 Verbrennungsmotor
EP83302959A EP0126812A1 (de) 1983-05-06 1983-05-23 Brennkraftmaschinen mit innerer Verbrennung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833317128 DE3317128A1 (de) 1983-05-06 1983-05-06 Verbrennungsmotor
EP83302959A EP0126812A1 (de) 1983-05-06 1983-05-23 Brennkraftmaschinen mit innerer Verbrennung

Publications (1)

Publication Number Publication Date
EP0126812A1 true EP0126812A1 (de) 1984-12-05

Family

ID=34378895

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83302959A Withdrawn EP0126812A1 (de) 1981-11-23 1983-05-23 Brennkraftmaschinen mit innerer Verbrennung

Country Status (2)

Country Link
EP (1) EP0126812A1 (de)
DE (1) DE3317128A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0302042A1 (de) * 1987-07-30 1989-02-01 Gerhard Schmitz Sechs-Takt-Brennkraftmaschine
WO1995032360A1 (de) * 1994-05-19 1995-11-30 Von Görtz & Finger Technische Entwicklungs-Gesellschaft Mbh Sechs-takt-verbrennungsmotor mit variablem brennraum
EP0756076A1 (de) * 1995-07-17 1997-01-29 von Görtz & Finger Techn. Entwicklungs Ges.m.b.H. Verfahren zur Nutzung der Abwärme eines Verbrennungsmotors
US6564758B1 (en) 1999-02-10 2003-05-20 Daimlerchrysler Ag Method for operating an internal combustion engine with variable charge changing control times
US7765785B2 (en) * 2005-08-29 2010-08-03 Kashmerick Gerald E Combustion engine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19810933C2 (de) * 1998-03-13 2001-08-16 Daimler Chrysler Ag Verbrennungsmotor
DE19941692A1 (de) * 1999-09-01 2001-03-15 Siemens Ag Verfahren zur schnellen Reduktion des Antriebsmoments
AT5937U1 (de) 2001-12-27 2003-01-27 Avl List Gmbh Verfahren zum betreiben einer brennkraftmaschine
DE102006014240A1 (de) * 2006-03-28 2007-10-04 Möllmann, Jochen Sechstakt-Verbrennungsmotor
FR2936021B1 (fr) * 2008-09-18 2013-01-04 Inst Francais Du Petrole Procede de controle de l'admission et de l'echappement d'un moteur a combustion interne du type a fonctionnement degrade d'au moins un cylindre et moteur utilisant un tel procede
DE102017211226B4 (de) * 2017-06-30 2019-05-02 Mtu Friedrichshafen Gmbh Verfahren zum Betreiben einer Brennkraftmaschine und Brennkraftmaschine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE352231C (de) * 1917-01-04 1922-04-24 Robert Conrad Sechstaktverbrennungskraftmaschine
US3709201A (en) * 1971-03-01 1973-01-09 Trw Inc Low emission internal combustion engine and method of improving combustion
DE2358894A1 (de) * 1973-11-27 1975-05-28 Lothar Behrens Brennkraftmaschine
FR2404109A1 (fr) * 1977-09-24 1979-04-20 Mezaki Shinken Moteur a explosion a six temps
US4289097A (en) * 1979-11-13 1981-09-15 Ward Charles P Six-cycle engine
DE3017095A1 (de) * 1980-05-03 1981-11-05 Franz Josef 5000 Köln Dziedzicki Sechstakt-motoren (sechstakter)
US4367700A (en) * 1981-01-19 1983-01-11 Hotspur International Corporation, Inc. Apparatus for insuring the complete burning of fuel in a six cycle combustion engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE352231C (de) * 1917-01-04 1922-04-24 Robert Conrad Sechstaktverbrennungskraftmaschine
US3709201A (en) * 1971-03-01 1973-01-09 Trw Inc Low emission internal combustion engine and method of improving combustion
DE2358894A1 (de) * 1973-11-27 1975-05-28 Lothar Behrens Brennkraftmaschine
FR2404109A1 (fr) * 1977-09-24 1979-04-20 Mezaki Shinken Moteur a explosion a six temps
US4289097A (en) * 1979-11-13 1981-09-15 Ward Charles P Six-cycle engine
DE3017095A1 (de) * 1980-05-03 1981-11-05 Franz Josef 5000 Köln Dziedzicki Sechstakt-motoren (sechstakter)
US4367700A (en) * 1981-01-19 1983-01-11 Hotspur International Corporation, Inc. Apparatus for insuring the complete burning of fuel in a six cycle combustion engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0302042A1 (de) * 1987-07-30 1989-02-01 Gerhard Schmitz Sechs-Takt-Brennkraftmaschine
BE1000774A5 (fr) * 1987-07-30 1989-04-04 Schmitz Gerhard Moteur a combustion interne a six temps.
WO1995032360A1 (de) * 1994-05-19 1995-11-30 Von Görtz & Finger Technische Entwicklungs-Gesellschaft Mbh Sechs-takt-verbrennungsmotor mit variablem brennraum
EP0756076A1 (de) * 1995-07-17 1997-01-29 von Görtz & Finger Techn. Entwicklungs Ges.m.b.H. Verfahren zur Nutzung der Abwärme eines Verbrennungsmotors
US6564758B1 (en) 1999-02-10 2003-05-20 Daimlerchrysler Ag Method for operating an internal combustion engine with variable charge changing control times
US7765785B2 (en) * 2005-08-29 2010-08-03 Kashmerick Gerald E Combustion engine

Also Published As

Publication number Publication date
DE3317128A1 (de) 1984-11-08

Similar Documents

Publication Publication Date Title
US5103645A (en) Internal combustion engine and method
US3924576A (en) Staged combustion engines and methods of operation
CN100347422C (zh) 连续燃烧恒功率发动机
US7905221B2 (en) Internal combustion engine
US4159699A (en) Compound engines
US4565167A (en) Internal combustion engine
US4630447A (en) Regenerated internal combustion engine
US6918358B2 (en) Eight-stroke internal combustion engine utilizing a slave cylinder
US3266234A (en) Compression ignition engine and method of operating same
JP2006112434A (ja) 内燃機関およびその作動方法
CA2340196A1 (en) Dual-cylinder expander engine and combustion method with two expansion strokes per cycle
US5056471A (en) Internal combustion engine with two-stage exhaust
US7640911B2 (en) Two-stroke, homogeneous charge, spark-ignition engine
EP0126812A1 (de) Brennkraftmaschinen mit innerer Verbrennung
US4280451A (en) High compression vacuum cycle engine
US3785355A (en) Engine with internal charge dilution and method
US5007384A (en) L-head two stroke engines
US11136916B1 (en) Direct torque control, piston engine
US4862841A (en) Internal combustion engine
WO1998021456A1 (en) Air-cooled self-supercharging four stroke internal combustion engine
US5010860A (en) Internal combustion engine with twin combustion chambers
US6393841B1 (en) Internal combustion engine with dual exhaust expansion cylinders
JPH08500166A (ja) 制限温度サイクルを備えた内燃機関
Cao Thermodynamic cycles of internal combustion engines for increased thermal efficiency, constant-volume combustion, variable compression ratio, and cold start
JPS5853668A (ja) 内燃機関の燃焼方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): FR GB IT SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850806