AT404388B - INTERNAL COMBUSTION ENGINE - Google Patents

INTERNAL COMBUSTION ENGINE Download PDF

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Publication number
AT404388B
AT404388B AT44286A AT44286A AT404388B AT 404388 B AT404388 B AT 404388B AT 44286 A AT44286 A AT 44286A AT 44286 A AT44286 A AT 44286A AT 404388 B AT404388 B AT 404388B
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AT
Austria
Prior art keywords
valves
internal combustion
combustion engine
valve
camshaft
Prior art date
Application number
AT44286A
Other languages
German (de)
Other versions
ATA44286A (en
Original Assignee
Weichsler Hermann
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 Weichsler Hermann filed Critical Weichsler Hermann
Priority to AT44286A priority Critical patent/AT404388B/en
Priority to DE8787890035T priority patent/DE3760298D1/en
Priority to EP19870890035 priority patent/EP0235121B1/en
Publication of ATA44286A publication Critical patent/ATA44286A/en
Application granted granted Critical
Publication of AT404388B publication Critical patent/AT404388B/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/262—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with valve stems disposed radially from a centre which is substantially the centre of curvature of the upper wall surface of a combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L1/0532—Camshafts overhead type the cams being directly in contact with the driven valve
    • 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
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0537—Double overhead camshafts [DOHC]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L2003/25—Valve configurations in relation to engine
    • F01L2003/256—Valve configurations in relation to engine configured other than perpendicular to camshaft axis
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/18—DOHC [Double overhead camshaft]
    • 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
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
    • F02F2001/246—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis and orientated radially from the combustion chamber surface

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Description

AT 404 388 BAT 404 388 B

Die Erfindung betrifft eine Brennkraftmaschine mit wenigstens einer Zylinderreihe mit eng aneinanderliegenden Brennräumen, wobei jeder Brennraum drei hängende Ventile aufweist, die an jeder Seite der Längsmittelebene der Brennkraftmaschine je eine Ventilreihe bilden, und eine parallel zur Längsmittelebene der Brennkraftmaschine angeordnete, obenliegende, je Ventil einen separaten Nocken aufweisende Nockenwelle vorgesehen ist, die zylindrische Nocken aufweist und die Ventile einer Ventilreihe betätigt.The invention relates to an internal combustion engine with at least one row of cylinders with closely spaced combustion chambers, each combustion chamber having three hanging valves, each forming a valve row on each side of the longitudinal center plane of the internal combustion engine, and an overhead valve arranged parallel to the longitudinal center plane of the internal combustion engine, a separate valve for each Camshaft having cam is provided, which has cylindrical cams and actuates the valves of a valve row.

Verbrennungskraftmaschinen mit drei Ventilen je Brennraum sind an sich bekannt.Internal combustion engines with three valves per combustion chamber are known per se.

Die DE 3 342 115 A1 betrifft einen Ventil-Betätigungsmechanismus einer Drei-Ventil-Brennkraftmaschi-ne, wobei die beiden Ventile gleicher Funktion parallel zueinander ausgerichtet sind, sodaß mit dem im schrägen Winkel dazustehenden dritten Ventil ein dachförmiger Brennraum entsteht. Diese Brennraumform ist wegen der stark außermittigen Lage der Zündkerze ungünstig, da die Brennwege unterschiedlich lang werden. Die vorteilhafteste Brennraumform bildet eine Kugelkalotte, die jedoch eine radiale Ventilanordnung erfordert, bei der die Ventilschäfte die Zylinderbohrung sehr weit überragen, sodaß dieses System nur bei einzelstehenden Zylindern, wie in der GB 695 546 A geoffenbart, oder bei mehrzylindrigen Reihenmotoren mit unwirtschaftlich weit voneinander entfernten Zylindern angewandt werden kann.DE 3 342 115 A1 relates to a valve actuation mechanism of a three-valve internal combustion engine, the two valves having the same function being aligned parallel to one another, so that a roof-shaped combustion chamber is created with the third valve at an oblique angle. This shape of the combustion chamber is unfavorable because of the highly eccentric position of the spark plug, since the combustion paths are of different lengths. The most advantageous shape of the combustion chamber is a spherical cap, which, however, requires a radial valve arrangement in which the valve stems protrude very far from the cylinder bore, so that this system is only available for single cylinders, as disclosed in GB 695 546 A, or for multi-cylinder in-line engines with economically distant distances Cylinders can be applied.

Aufgabe der Erfindung ist es, diese Nachteile zu beseitigen und eine Verbrennungskraftmaschine mit eng aneinanderliegenden Brennräumen und radialer Ventilanordnung zu schaffen.The object of the invention is to eliminate these disadvantages and to provide an internal combustion engine with closely spaced combustion chambers and a radial valve arrangement.

Die Erfindung löst die Aufgabe dadurch, daß die Achsen der in bezug auf den jeweiligen Brennraum radial angeordneten Ventile sich etwa in der Brennraummitte schneiden und in Richtung der Zylinderachsen betrachtet ein mit einer der Achsen der Ventile normal auf die Längsmittelebene der Verbrennungskraftmaschine stehendes "Y" bilden, daß die Lage der Ventile zueinander in den Brennräumen benachbarter Zylinder jeweils um 180 * verdreht ist und daß eine zweite, parallel zur Längsmittelebene der Brennkraftmaschine angeordnete, obenliegende, je Ventil einen separaten Nocken aufweisende Nockenwelle vorgesehen ist, die die Ventile der anderen Ventilreihe betätigt, wobei jede der beiden Nockenwellen die im spitzen Winkel zur Nockenwellenachse angeordneten Ventile über konische Nocken und die normal zur Nockenwellenachse angeordneten Ventile über zylindrische Nocken betätigt und jeder Nocken unmittelbar auf je einen gleichachsig mit dem zugehörigen Ventil angeordneten Tassenstößel wirkt.The invention achieves the object in that the axes of the valves arranged radially with respect to the respective combustion chamber intersect approximately in the center of the combustion chamber and, viewed in the direction of the cylinder axes, a "Y" with one of the axes of the valves is normal to the longitudinal center plane of the internal combustion engine. Form that the position of the valves to each other in the combustion chambers of adjacent cylinders is rotated by 180 * and that a second camshaft, which is arranged parallel to the longitudinal center plane of the internal combustion engine and has a separate cam for each valve, is provided, which actuates the valves of the other valve series , wherein each of the two camshafts actuates the valves arranged at an acute angle to the camshaft axis via conical cams and the valves arranged normally to the camshaft axis via cylindrical cams, and each cam acts directly on a bucket tappet arranged coaxially with the associated valve.

Durch diesen Wechsel der Ventilanordnung innerhalb benachbarter Brennräume wird es ermöglicht, daß die über die Zylinderbohrung hinausreichenden Ventile in den Freiraum des benachbarten Zylinders ragen.This change in the valve arrangement within adjacent combustion chambers makes it possible for the valves extending beyond the cylinder bore to protrude into the free space of the adjacent cylinder.

Ein weiteres Merkmal der Erfindung ist es, daß die konischen Nocken in ihrem Erhebungsbereich in Richtung der Ventilachse vorgekröpft sind, und daß das Ventilspiel der schräg zur Nockenwellenlängsachse stehenden Ventile durch achsiales Verschieben der einzelnen Nocken auf der Nockenwelle eingestellt wird.Another feature of the invention is that the conical cams are cranked in their raised area in the direction of the valve axis, and that the valve clearance of the valves which are at an angle to the longitudinal axis of the camshaft is adjusted by axially displacing the individual cams on the camshaft.

Ein anderes Merkmal der Erfindung ist es, daß die Zündkerze annähernd in der Mitte des Brennraumes angeordnet ist.Another feature of the invention is that the spark plug is arranged approximately in the middle of the combustion chamber.

Ein abschließendes Merkmal der Erfindung ist es, daß jedem der beiden im schrägen Winkel zur Nockenwellenachse stehenden Ventil ein eigener Kanal zugeordnet ist.A final feature of the invention is that each of the two valves at an oblique angle to the camshaft axis is assigned its own channel.

Die Erfindung ist in einem Ausführungsbeispiel schematisch dargestellt. Fig. 1 zeigt einen Längsschnitt durch den erfindungsgemäßen Zylinderkopf eines Reihenmotors, Fig. 2 zeigt die Draufsicht durch denselben Zylinderkopf und Fig. 3 veranschaulicht einen Querschnitt nach Linie A-A der Fig. 1 und 2.The invention is shown schematically in one embodiment. Fig. 1 shows a longitudinal section through the cylinder head according to the invention of an in-line engine, Fig. 2 shows the plan view through the same cylinder head and Fig. 3 illustrates a cross section along line A-A of Figs. 1 and 2.

In Fig. 1 und 2 werden lediglich die bewegten Teile dargestellt, während in Fig. 3 der Zylinderkopf teilweise durchsichtig gedacht ist.1 and 2 only the moving parts are shown, while in Fig. 3 the cylinder head is partially transparent.

Die Zylinderköpfe weisen einen halbkugelförmigen Verbrennungsraum 1, 2 auf und sind mit je drei Ventilen 3, 4 ausgebiidet, von denen die beiden kleineren die Einlaßfunktion übernehmen, während dem verbleibenden der Auspuff zufällt oder umgekehrt.The cylinder heads have a hemispherical combustion chamber 1, 2 and are each formed with three valves 3, 4, of which the two smaller ones take over the intake function, while the remaining one falls into the exhaust or vice versa.

Die Achsen der einzelnen Ventilschäfte 3', 4' verschneiden sich in etwa der Hochachse des Zylinders 1' und bilden im Grundriß betrachtet ein "Y". Dabei überragen die beiden Einlaßventile 4 die Zylinderbohrung in Motorlängsachse. Um das Kollidieren der einzelnen Ventilfedern und Tassenstößel 4" zu verhindern, wird die Ventilanordnung im benachbarten Brennraum 2 um 180 · verdreht, sodaß sich im Zylinderkopf Einlaßkanäle 7 und Auslaßkanäle 6 abwechseln.The axes of the individual valve stems 3 ', 4' intersect approximately the vertical axis of the cylinder 1 'and, viewed in plan, form a " Y ". The two intake valves 4 protrude from the cylinder bore in the longitudinal axis of the engine. To prevent the collision of the individual valve springs and tappets 4 " To prevent, the valve assembly in the adjacent combustion chamber 2 is rotated 180 ×, so that intake ports 7 and exhaust ports 6 alternate in the cylinder head.

Die Steuerung der Ventile erfolgt durch zwei in die durch die Ventilschäfte gebildeten Ebenen gelegten Nockenwellen 8, welche die senkrecht zur Nockenwellenachse stehenden Auslaßventile 3 durch zylindrische auf Tassenstößel 3" wirkenden Nocken 10 öffnen, während die Einlaßventile 4 mittels konischer, ebenfalls auf Tassenstößel 4” wirkenden Nocken 9 betätigt werden. Damit wird es möglich, das Ventilspiel durch achsiales Verschieben der Einzelnocken 9 auf der Nockenwelle 8 einzustellen.The valves are controlled by two camshafts 8 placed in the planes formed by the valve stems, which control the outlet valves 3 perpendicular to the camshaft axis by means of cylindrical cup tappets 3 " open acting cams 10 while the inlet valves 4 are actuated by means of conical cams 9 also acting on tappets 4 ”. This makes it possible to adjust the valve clearance by axially displacing the individual cams 9 on the camshaft 8.

Die Zündkerze 5 liegt bei dieser Art der Ventilanordnung nahezu in der Mitte des Brennraumes 1,2. 2In this type of valve arrangement, the spark plug 5 is almost in the middle of the combustion chamber 1, 2. 2nd

Claims (5)

AT 404 388 B Patentansprüche 1. Brennkraftmaschine mit wenigstens einer Zylinderreihe mit eng aneinanderliegenden Brennräumen (1, 2), wobei jeder Brennraum drei hängende Ventile (3, 4) aufweist, die an jeder Seite der Längsmittelebene der Brennkraftmaschine je eine Ventilreihe bilden, und eine, parallel zur Längsmittelebene der Brennkraftmaschine angeordnete, obenliegende, je Ventil einen separaten Nocken aufweisende Nok-kenwelle (8) vorgesehen ist, die zylindrische Nocken aufweist und die Ventile einer der Ventilreihen betätigt, dadurch gekennzeichnet, daß die Achsen der in bezug auf den jeweiligen Brennraum (1,2) radial angeordneten Ventile (3,4) sich etwa in der Brennraummitte schneiden und in Richtung der Zylinderachsen betrachtet ein mit einer der Achsen der Ventile (3,4) normal auf die Längsmittelebene der Brennkraftmaschine stehendes "Y" bilden, daß die Lage der Ventile (3,4) zueinander in den Brennräumen (1,2) benachbarter Zylinder (1', 2') jeweils um 180 * verdreht ist und daß eine zweite, parallel zur Längsmittelebene der Brennkraftmaschine angeordnete, obenliegende, je Ventil (3,4) einen separaten Nocken (9,10) aufweisende Nockenwelle (8) vorgesehen ist, die die Ventile (3,4) der anderen Ventilreihe betätigt, wobei jede der beiden Nockenwellen (8) die im spitzen Winkel zur Nockenwellenachse angeordneten Ventile (4) über konische Nocken (9) und die normal zur Nockenwellenachse angeordneten Ventile (3) über zylindrische Nocken (10) betätigt und jeder Nocken (9,10) unmittelbar auf je einen gleichachsig mit dem zugehörigen Ventil (3,4) angeordneten Tassenstößel (4") wirkt.1. Internal combustion engine with at least one row of cylinders with closely spaced combustion chambers (1, 2), each combustion chamber having three hanging valves (3, 4), each forming a valve row on each side of the longitudinal median plane of the internal combustion engine, and one , parallel to the longitudinal center plane of the internal combustion engine, an overhead cam shaft (8) having a separate cam for each valve is provided, which has cylindrical cams and actuates the valves of one of the valve rows, characterized in that the axes of the in relation to the respective combustion chamber (1,2) radially arranged valves (3,4) intersect approximately in the center of the combustion chamber and, viewed in the direction of the cylinder axes, a " Y " with one of the axes of the valves (3,4) is normal to the longitudinal center plane of the internal combustion engine. form that the position of the valves (3, 4) relative to one another in the combustion chambers (1, 2) of adjacent cylinders (1 ', 2') is rotated by 180 * and that a second, overhead, parallel to the longitudinal center plane of the internal combustion engine for each valve (3, 4) there is provided a separate camshaft (8) (9, 10) which actuates the valves (3, 4) of the other row of valves, each of the two camshafts (8) being at an acute angle to the camshaft axis arranged valves (4) via conical cams (9) and the valves (3) arranged normal to the camshaft axis are actuated via cylindrical cams (10) and each cam (9, 10) is directly connected to one with the associated valve (3, 4) arranged tappet (4 ") acts. 2. Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die konischen Nocken (9) in ihrem Erhebungsbereich in Richtung der Ventilachse (4') vorgekröpft sind.2. Internal combustion engine according to claim 1, characterized in that the conical cams (9) are cranked in their raised area in the direction of the valve axis (4 '). 3. Brennkraftmaschine nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß das Ventilspiel der im spitzen Winkel zur Nockenwellenlängsachse angeordneten Ventile (4) durch axiales Verschieben der einzelnen Nocken (9) auf der Nockenwelle (8) eingestellt wird.3. Internal combustion engine according to claims 1 and 2, characterized in that the valve clearance of the valves (4) arranged at an acute angle to the camshaft longitudinal axis is adjusted by axially displacing the individual cams (9) on the camshaft (8). 4. Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, daß eine Zündkerze (5) annähernd in der Mitte jedes Brennraumes (1,2) angeordnet ist.4. Internal combustion engine according to claim 1, characterized in that a spark plug (5) is arranged approximately in the middle of each combustion chamber (1,2). 5. Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, daß jedem der beiden im spitzen Winkel zur Nockenwellenachse angeordneten Ventil (4) ein separater Einlaß- bzw. Auslaßkanal (6,7) zugeordnet ist. Hiezu 3 Blatt Zeichnungen 35. Internal combustion engine according to claim 1, characterized in that each of the two at an acute angle to the camshaft axis arranged valve (4) is assigned a separate inlet and outlet channel (6,7). Including 3 sheets of drawings 3
AT44286A 1986-02-20 1986-02-20 INTERNAL COMBUSTION ENGINE AT404388B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT44286A AT404388B (en) 1986-02-20 1986-02-20 INTERNAL COMBUSTION ENGINE
DE8787890035T DE3760298D1 (en) 1986-02-20 1987-02-20 Internal combustion engine
EP19870890035 EP0235121B1 (en) 1986-02-20 1987-02-20 Internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT44286A AT404388B (en) 1986-02-20 1986-02-20 INTERNAL COMBUSTION ENGINE

Publications (2)

Publication Number Publication Date
ATA44286A ATA44286A (en) 1998-03-15
AT404388B true AT404388B (en) 1998-11-25

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ID=3490718

Family Applications (1)

Application Number Title Priority Date Filing Date
AT44286A AT404388B (en) 1986-02-20 1986-02-20 INTERNAL COMBUSTION ENGINE

Country Status (3)

Country Link
EP (1) EP0235121B1 (en)
AT (1) AT404388B (en)
DE (1) DE3760298D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010026440B4 (en) 2010-07-08 2023-06-01 Kurt Imren Yapici Three-valve cylinder head for multi-cylinder engines

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5016592A (en) * 1989-02-14 1991-05-21 Yamaha Hatsudoki Kabushika Kaisha Cylinder head and valve train arrangement for multiple valve engine
GB8928386D0 (en) * 1989-12-15 1990-02-21 Ricardo Group Plc Internal combustion engine
US5501191A (en) * 1992-12-23 1996-03-26 Feuling; James J. Combustion chamber system having an improved valve arrangement
IT1293668B1 (en) * 1997-08-01 1999-03-08 Fiat Ricerche INTERNAL COMBUSTION ENGINE WITH COMMANDED IGNITION WITH COMBUSTION CHAMBER EQUIPPED WITH THREE VALVES AND CENTRAL SPARK PLUG.
JPH11182330A (en) * 1997-12-18 1999-07-06 Nissan Motor Co Ltd Direct injection spark ignition type internal combustion engine
DE102008019242B4 (en) * 2008-04-17 2020-06-04 Audi Ag Valve train for gas exchange valves of an internal combustion engine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB695546A (en) * 1950-04-19 1953-08-12 Associated Motor Cycles Ltd Improvements relating to high performance air-cooled internal combustion engines
DE3342115A1 (en) * 1982-11-24 1984-05-24 Honda Giken Kogyo K.K., Tokio/Tokyo VALVE ACTUATING MECHANISM OF A THREE-VALVE INTERNAL COMBUSTION ENGINE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB967697A (en) * 1962-08-23 1964-08-26 Vauxhall Motors Ltd Internal combustion engine valve gear
GB1322429A (en) * 1970-08-07 1973-07-04 Fiat Spa Internal combustion reciprocating engine with three valves per cylinder
DE3125077A1 (en) * 1981-06-26 1983-01-13 Bayerische Motoren Werke AG, 8000 München TWO-CYLINDER FOUR-STOCK BOXER ENGINE, ESPECIALLY DRIVE WIND AIR-COOLED FOR MOTORCYCLES
AT382933B (en) * 1984-03-14 1987-04-27 Weichsler Hermann VALVE ACTUATION FOR LIFTING PISTON - INTERNAL COMBUSTION ENGINES
AT399021B (en) * 1985-03-18 1995-03-27 Weichsler Hermann VALVE CONTROL FOR INTERNAL COMBUSTION ENGINES

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB695546A (en) * 1950-04-19 1953-08-12 Associated Motor Cycles Ltd Improvements relating to high performance air-cooled internal combustion engines
DE3342115A1 (en) * 1982-11-24 1984-05-24 Honda Giken Kogyo K.K., Tokio/Tokyo VALVE ACTUATING MECHANISM OF A THREE-VALVE INTERNAL COMBUSTION ENGINE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010026440B4 (en) 2010-07-08 2023-06-01 Kurt Imren Yapici Three-valve cylinder head for multi-cylinder engines

Also Published As

Publication number Publication date
EP0235121A1 (en) 1987-09-02
DE3760298D1 (en) 1989-08-10
EP0235121B1 (en) 1989-07-05
ATA44286A (en) 1998-03-15

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