EP0113450B1 - Zylinderkopf für Viertakt-Brennkraftmaschinen - Google Patents

Zylinderkopf für Viertakt-Brennkraftmaschinen Download PDF

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Publication number
EP0113450B1
EP0113450B1 EP83112438A EP83112438A EP0113450B1 EP 0113450 B1 EP0113450 B1 EP 0113450B1 EP 83112438 A EP83112438 A EP 83112438A EP 83112438 A EP83112438 A EP 83112438A EP 0113450 B1 EP0113450 B1 EP 0113450B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
inlet valves
valves
valve
spark plug
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.)
Expired
Application number
EP83112438A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0113450A1 (de
Inventor
Jiri Dipl.-Ing. Seidl
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0113450A1 publication Critical patent/EP0113450A1/de
Application granted granted Critical
Publication of EP0113450B1 publication Critical patent/EP0113450B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • 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
    • F01L1/022—Chain drive
    • 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
    • F01L1/024—Belt drive
    • 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • 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
    • 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
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
    • 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
    • F02B75/243—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type with only one crankshaft of the "boxer" type, e.g. all connecting rods attached to separate crankshaft bearings
    • 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
    • F01L2001/0535—Single overhead camshafts [SOHC]
    • 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
    • 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1808—Number of cylinders two
    • 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
    • F02B2275/20—SOHC [Single 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

Definitions

  • the invention relates to a cylinder head of a type according to the features specified in the preamble of the claim.
  • a known four-valve cylinder head each with two intake and exhaust valves in a V-position of a similar type according to DE-A-2 919 213, has a significantly higher construction cost for the additional second exhaust valve and its control.
  • either the valve size or V-angle size is limited by reciprocal stroke hindrance of an intake and an exhaust valve, and thus also prevents the gas exchange.
  • the spark gap of the spark plug is arranged approximately in the middle between all four valves, which would hinder the exhaust valve size in the case of three valves.
  • the invention avoids the disadvantages described by using the features according to the characterizing part of the patent claim in the case of a type-appropriate cylinder head.
  • the valve and spark plug arrangement provided with only one exhaust valve enables large valve opening cross sections, a compact combustion chamber design including almost central charge ignition and a favorable influence on the combustion process through a design and arrangement of a coordinated pinch gap which is favored by the intake valve arrangement.
  • a cylinder head 1 for spark-ignited four-stroke internal combustion engines contains three valves 2 and 3 in a V position with respect to one another.
  • Two inlet valves 2 are parallel to each other corresponding to a V-leg, which is determined by the plane of the two inlet valves 2.
  • the inlet valves 2 have an angle of approximately 37 ° to the cylinder axis 4.
  • the V-leg determined by an exhaust valve 3, on the other hand, only has an angle of approximately 15 ° to the cylinder axis 4.
  • a camshaft 5 is arranged in an angle bisecting position within the approx. 52 ° -V position of the intake and exhaust valves 2 and 3.
  • a tilting jack 6 is rotatably arranged on bearing axles 7.
  • the described V-position of the intake and exhaust valves 2 and 3 results in connection with the arrangement of the two intake valves 2 or their valve plate 2 'at a relatively large free distance and a spark plug 8 or its spark gap in this distance one for the size the valve opening cross sections and the combustion process advantageous design of the combustion chamber 9.
  • the valve plates 2 'and 3' are almost tangentially close to the contour 10 'of the associated cylinder 10 and the valve plate 2' at a relatively close distance from the valve plate 3 '.
  • the diameter of the valve plate 3 'of the exhaust valve 3 largely corresponds to the radius of the cylinder 10.
  • the valve plate 2' of the intake valve 2 overlap that axis 10 "of the contour 10 'of the cylinder 10 which is parallel to the plane of the intake valve 2.
  • a relatively large squeeze area 11 is formed which, in cooperation with a flat bottom portion 12' of a piston 12, forms a squeeze gap with a favorable influence on the combustion process.
  • the spark plug 8 is arranged with its longitudinal axis at a larger angle to the cylinder axis 4 than the shafts of the intake valves 2. This means that the Zünd needs more space candle 8 not between the space requirement of the valve springs 13 of the inlet valves 2 to advantage.
  • the spark plug 8 and its electrical connection have a particularly favorable accessibility for the maintenance of the relatively cold inlet outside of the cylinder head 1 during operation.

Landscapes

  • 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)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
EP83112438A 1981-06-26 1982-06-18 Zylinderkopf für Viertakt-Brennkraftmaschinen Expired EP0113450B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813125077 DE3125077A1 (de) 1981-06-26 1981-06-26 Zweizylinder-viertakt-boxermotor, insbesondere fahrtwindluftgekuehlt fuer motorraeder
DE3125077 1981-06-26

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP82105324.6 Division 1982-06-18

Publications (2)

Publication Number Publication Date
EP0113450A1 EP0113450A1 (de) 1984-07-18
EP0113450B1 true EP0113450B1 (de) 1986-09-10

Family

ID=6135396

Family Applications (2)

Application Number Title Priority Date Filing Date
EP83112438A Expired EP0113450B1 (de) 1981-06-26 1982-06-18 Zylinderkopf für Viertakt-Brennkraftmaschinen
EP82105324A Expired EP0068336B1 (de) 1981-06-26 1982-06-18 Zweizylinder-Viertakt-Boxermotor, insbesondere fahrtwind-luftgekühlt für Motorräder

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP82105324A Expired EP0068336B1 (de) 1981-06-26 1982-06-18 Zweizylinder-Viertakt-Boxermotor, insbesondere fahrtwind-luftgekühlt für Motorräder

Country Status (5)

Country Link
US (1) US4558676A (ar)
EP (2) EP0113450B1 (ar)
JP (1) JPS58501045A (ar)
DE (3) DE3125077A1 (ar)
WO (1) WO1983000188A1 (ar)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3307708A1 (de) * 1983-03-04 1984-09-06 Bayerische Motoren Werke AG, 8000 München Zweizylinder-viertakt-brennkraftmaschine, insbesondere fuer motorraeder mit in fahrtrichtung angeordneter kurbelwelle
FR2562162B1 (fr) * 1984-03-27 1988-05-27 Peugeot Culasse pour moteur a combustion interne a trois soupapes
AT404388B (de) * 1986-02-20 1998-11-25 Weichsler Hermann Brennkraftmaschine
AT404389B (de) * 1986-11-21 1998-11-25 Avl Verbrennungskraft Messtech Brennkraftmaschine mit einer nockenwelle zum antrieb von pro zylinder zwei nebeneinanderliegenden einlassventilen und einem gegenüberliegenden auslassventil
FR2611806A1 (fr) * 1987-03-02 1988-09-09 Allemand Alain Dispositif interne de reduction de vitesse pour un moteur 4 temps
JPH02149769A (ja) * 1988-11-30 1990-06-08 Fuji Heavy Ind Ltd ４バルブ式エンジン燃焼室の点火プラグ配列装置
DE4314044A1 (de) * 1993-04-29 1994-11-03 Porsche Ag Brennkraftmaschine mit zwei Zylinderreihen
US5553580A (en) * 1995-01-13 1996-09-10 Ganoung; David P. Stratified charge engines and method for their operation
DE19806272C1 (de) * 1998-02-16 1999-04-15 Lipcan Sergiu Valentin Im Druckgußverfahren herstellbarer Leichtmetallzylinderkopf für eine flüssigkeitsgekühlte Brennkraftmaschine mit drei Ventilen pro Zylinder
AT408249B (de) * 1999-06-11 2001-09-25 Khayat Assad Kurbeltrieb für verbrennungskraftmotoren
JP2005146915A (ja) * 2003-11-12 2005-06-09 Komatsu Zenoah Co 伝導結合機構
US7395790B2 (en) 2004-11-18 2008-07-08 S&S Cycle, Inc. Reed valve breather for evolution engine
DE102017213722A1 (de) * 2017-08-08 2019-02-14 Bayerische Motoren Werke Aktiengesellschaft Antriebsvorrichtung für ein Motorrad
DE102018207512A1 (de) * 2018-05-15 2019-11-21 Bayerische Motoren Werke Aktiengesellschaft Antriebsvorrichtung
DE102021126596A1 (de) 2021-10-14 2023-04-20 Bayerische Motoren Werke Aktiengesellschaft Neigefahrzeug

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE708283C (de) * 1938-09-30 1941-07-17 Messerschmitt Boelkow Blohm Zylinderkopf fuer fluessigkeitsgekuehlte Brennkraftmaschinen
DE1127144B (de) * 1957-10-03 1962-04-05 Rudolph Daub Zylinderkopf fuer luftgekuehlte Verbrennungskraftmaschinen
DE2919213A1 (de) * 1979-05-12 1980-11-20 Daimler Benz Ag Zylinderkopf fuer eine brennkraftmaschine

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DE2655102A1 (de) * 1976-12-04 1978-06-08 Daimler Benz Ag Kettentrieb, insbesondere fuer den steuerantrieb von brennkraftmaschinen
JPS5392012A (en) * 1977-01-24 1978-08-12 Kubota Ltd V shaped forced-air cooling 4 cycle engine
DE2703520A1 (de) * 1977-01-28 1978-08-03 Bayerische Motoren Werke Ag Zweizylinder-viertakt-boxermotor
DE2809157A1 (de) * 1978-03-03 1979-09-06 Daimler Benz Ag Zylinderkopf fuer eine gemischverdichtende brennkraftmaschine
US4320671A (en) * 1978-05-25 1982-03-23 Curasi Robert R Crankshaft counterbalancing
JPS5548003A (en) * 1978-09-21 1980-04-05 Om Ltd Molding conveying device of packing machine
JPS595769B2 (ja) * 1978-10-06 1984-02-07 本田技研工業株式会社 高出力型エンジン
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE708283C (de) * 1938-09-30 1941-07-17 Messerschmitt Boelkow Blohm Zylinderkopf fuer fluessigkeitsgekuehlte Brennkraftmaschinen
DE1127144B (de) * 1957-10-03 1962-04-05 Rudolph Daub Zylinderkopf fuer luftgekuehlte Verbrennungskraftmaschinen
DE2919213A1 (de) * 1979-05-12 1980-11-20 Daimler Benz Ag Zylinderkopf fuer eine brennkraftmaschine

Also Published As

Publication number Publication date
JPS6127569B2 (ar) 1986-06-26
DE3273260D1 (en) 1986-10-16
EP0068336B1 (de) 1985-02-06
DE3125077A1 (de) 1983-01-13
DE3262212D1 (en) 1985-03-21
EP0113450A1 (de) 1984-07-18
JPS58501045A (ja) 1983-06-30
EP0068336A1 (de) 1983-01-05
US4558676A (en) 1985-12-17
WO1983000188A1 (en) 1983-01-20

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