EP0063809A2 - Culasse à quatre soupapes pour un moteur à combustion interne - Google Patents

Culasse à quatre soupapes pour un moteur à combustion interne Download PDF

Info

Publication number
EP0063809A2
EP0063809A2 EP82103513A EP82103513A EP0063809A2 EP 0063809 A2 EP0063809 A2 EP 0063809A2 EP 82103513 A EP82103513 A EP 82103513A EP 82103513 A EP82103513 A EP 82103513A EP 0063809 A2 EP0063809 A2 EP 0063809A2
Authority
EP
European Patent Office
Prior art keywords
cylinder head
outlet
inlet
cooling
valve cylinder
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.)
Ceased
Application number
EP82103513A
Other languages
German (de)
English (en)
Other versions
EP0063809A3 (fr
Inventor
Michael Krauser
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.)
Krauser Kraftfahrzeug-Zubehor Vertriebs-Gmbh
Original Assignee
Krauser Kraftfahrzeug-Zubehor Vertriebs-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 Krauser Kraftfahrzeug-Zubehor Vertriebs-Gmbh filed Critical Krauser Kraftfahrzeug-Zubehor Vertriebs-Gmbh
Publication of EP0063809A2 publication Critical patent/EP0063809A2/fr
Publication of EP0063809A3 publication Critical patent/EP0063809A3/fr
Ceased legal-status Critical Current

Links

Images

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
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/28—Cylinder heads having cooling means for air cooling
    • F02F1/30—Finned cylinder heads
    • F02F1/32—Finned cylinder heads the cylinder heads being of overhead valve type
    • 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
    • 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
    • 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
    • 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
    • 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 four-valve cylinder head for a four-stroke engine.
  • Powerful four-stroke engines should, among other things, have the smallest possible combustion chamber, since the ignition front is compact and this also results in small and thick flame paths. However, if the combustion chamber is made correspondingly small, the heat-absorbing surface also becomes correspondingly small, i.e. the engine runs much hotter.
  • the object of the invention is therefore to provide particularly good cooling and very good heat exchange on a four-valve cylinder head for a four-stroke engine with a small, compact combustion chamber. According to the invention, this is achieved in a four-valve cylinder head for a four-stroke engine by the features in the characterizing part of claim 1.
  • An advantageous development of the invention is specified in the subclaim.
  • the cylinder head according to the invention has a part with a relatively large material cross-section above the combustion chamber, ie between the inlet and the outlet, through which a relatively large, heat-absorbing surface and thus a good heat exchange result between the relatively cool inlet side and the very hot outlet side Combustion chamber is reached over the part with the large material cross section to the rest of the cylinder head.
  • a straight passage which on the outlet side, ie viewed in the direction of travel in front, has the shape of a funnel-shaped storage space which narrows towards the cylinder interior and which narrows at the end of the funnel-shaped storage space
  • Storage space inside the cylinder is expanded in the area of the spark plug and ends on the side of the inlet in a relatively small opening between the cooling fins.
  • a lateral suction opening that widens conically outwards branches off at the middle part of the straight passage, approximately at the level of the spark plug.
  • the ribs arranged in the area of the very hot exhaust side i.e. the ribs lying at the front in the direction of travel, the cylinder head are formed considerably lower than the ribs provided on the relatively cool inlet side.
  • the part with the large mate lies above the combustion chamber rialquerites achieved a good heat exchange between the inlet and the outlet, and by the funnel-shaped design of the passage above the outlet, the air is accelerated accordingly, so that there is a particularly intense heat transfer to the air.
  • This cooling effect is then intensified by the suction caused by the head wind through the side opening, so that this and, in addition, the very deeply formed ribs on the exhaust side create a very well-cooled cylinder head with a particularly good, material-conserving heat exchange inside.
  • FIG. 1 to 3 show different sectional views through a left-hand cylinder head of a four-stroke boxer engine with camshafts located below.
  • bearing blocks 7 for holding fork rocker arms (not shown in more detail) for two inlet and outlet valves are shown, which are guided by tappets guided in dash-dot lines, very short pushrods and other plungers engaging at their lower ends are actuated by the camshaft below.
  • bores 12 for the valves and valve seats 121 are shown in FIG.
  • a part 17 of the cylinder head is formed with a large material cross section, through which a good heat exchange between the relatively cool inlet side 3 and the very hot outlet side 2 of the cylinder head 1 is created.
  • part of a funnel-shaped stowage space 41 of a passage 4 as well as the rear, ie part of the enlarged central part 42 of the passage 4 on the engine block side can be seen.
  • Relatively short cooling fins 14 are formed on the cylinder head 1 above the inlet 3.
  • FIG. 2 In the sectional view of FIG. 2, which is approximately perpendicular to the view in FIG. 1, the small outlet opening 43 of the passage 4 is shown on the inlet side.
  • a stepped bore 5 extends from the enlarged middle part 42 of the passage 4, into which a spark plug inserted from above via an insertion opening 51 can be screwed, the ignition electrode of which then lies in the combustion chamber 6.
  • the stepped bore 5 for inserting the spark plug passes through the part 17 of the cylinder head 1 which has a relatively large cross section.
  • a bore 11 for a fastening bolt is formed in the left part of the cylinder head 1 in FIG.
  • the funnel-shaped storage space 41 of the passage 4 arranged above the outlet 2 is provided, which widens into the middle part 42 after a narrowing.
  • One of these middle parts branches laterally outwards, that is to say from the engine block opposite side, conically widening suction opening 45. 3 also shows graded bores 11 for the fastening bolts, bores 12 for the valve guide and bores 13 for the tappet guide.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP82103513A 1981-04-28 1982-04-26 Culasse à quatre soupapes pour un moteur à combustion interne Ceased EP0063809A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3116802 1981-04-28
DE3116802A DE3116802C2 (de) 1981-04-28 1981-04-28 Vierventil-Zylinderkopf für einen Viertaktmotor

Publications (2)

Publication Number Publication Date
EP0063809A2 true EP0063809A2 (fr) 1982-11-03
EP0063809A3 EP0063809A3 (fr) 1983-04-06

Family

ID=6130983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103513A Ceased EP0063809A3 (fr) 1981-04-28 1982-04-26 Culasse à quatre soupapes pour un moteur à combustion interne

Country Status (6)

Country Link
US (1) US4484542A (fr)
EP (1) EP0063809A3 (fr)
JP (1) JPS5896146A (fr)
AU (1) AU8240082A (fr)
DE (1) DE3116802C2 (fr)
ES (1) ES264772Y (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103051A3 (fr) * 1982-09-15 1984-09-05 KRAUSER Kraftfahrzeug-Zubehör Vertriebs-GmbH Dispositif de commande pour deux ou quatre soupapes d'un moteur à combustion interne à quatre temps
WO1989005910A1 (fr) * 1987-12-22 1989-06-29 Bayerische Motoren Werke Aktiengesellschaft Moteur a combustion interne avec une tete de cylindre a courant transversal, notamment cylindres a tete unique refroidie a l'air pour moteurs a combustion interne de motocyclettes

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0616013B2 (ja) * 1984-11-22 1994-03-02 肇産業株式会社 自動検査装置
JPS61247816A (ja) * 1985-04-24 1986-11-05 Yanmar Diesel Engine Co Ltd 内燃機関の冷却装置
US8677955B2 (en) * 2010-01-04 2014-03-25 Westrom Engineering, Llc Single poppet valve cylinder head assembly for internal combustion engine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB516787A (en) * 1938-07-07 1940-01-11 Bristol Aeroplane Co Ltd Improvements relating to the cooling fins of air-cooled internal-combustion engines
CH233261A (de) * 1942-12-31 1944-07-15 Porsche Kg Zylinderkopf für luftgekühlte Brennkraftmaschinen.
US2725045A (en) * 1950-12-06 1955-11-29 Kloeckner Humboldt Deutz Ag Air cooled cylinder head for diesel engines
GB699554A (en) * 1951-01-02 1953-11-11 Porsche Konstruktionen Gmbh Improvements in the cylinder heads of air-cooled internal combustion engines
DE966214C (de) * 1952-04-17 1957-07-18 Kloeckner Humboldt Deutz Ag Zylinderkopf fuer Brennkraftmaschinen
DE975228C (de) * 1952-04-17 1961-10-12 Kloeckner Humboldt Deutz Ag Luftgekuehlter Zylinderkopf fuer Brennkraftmaschinen
GB1039777A (en) * 1964-02-17 1966-08-24 Cunewalde Motoren Cylinder head for air-cooled internal combustion engines
CS170589B1 (fr) * 1974-01-24 1976-09-15

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103051A3 (fr) * 1982-09-15 1984-09-05 KRAUSER Kraftfahrzeug-Zubehör Vertriebs-GmbH Dispositif de commande pour deux ou quatre soupapes d'un moteur à combustion interne à quatre temps
WO1989005910A1 (fr) * 1987-12-22 1989-06-29 Bayerische Motoren Werke Aktiengesellschaft Moteur a combustion interne avec une tete de cylindre a courant transversal, notamment cylindres a tete unique refroidie a l'air pour moteurs a combustion interne de motocyclettes

Also Published As

Publication number Publication date
JPS5896146A (ja) 1983-06-08
EP0063809A3 (fr) 1983-04-06
DE3116802C2 (de) 1983-05-05
AU8240082A (en) 1982-11-04
DE3116802A1 (de) 1982-11-04
ES264772Y (es) 1983-05-16
ES264772U (es) 1982-11-16
US4484542A (en) 1984-11-27

Similar Documents

Publication Publication Date Title
DE2417925A1 (de) Verbrennungskraftmaschine
DE2839199C2 (de) Im Druckgießverfahren herstellbarer Zylinderkopf für wassergekühlte Brennkraftmaschinen
DE19644409C1 (de) Zylinderkopf einer Mehrzylinder-Brennkraftmaschine
DE69308768T2 (de) Zylinderkopf-Kühlstruktur für eine Mehrventil-Brennkraftmaschine
DE3034053A1 (de) Viertakt-brennkraftmaschine und betriebsverfahren fuer diese brennkraftmaschine.
DE3543443A1 (de) Fremdgezuendete brennkraftmaschine
EP0771941B2 (fr) Culasse pour moteur à combustion interne
DE102018116973B4 (de) Flüssigkeitsgekühltes Kurbelgehäuse für eine Brennkraftmaschine
AT410242B (de) Mehrzylinder-brennkraftmaschine mit zwei einlass- und zwei auslassventilen
DE3224945C1 (de) Zylinderkopf fuer fluessigkeitsgekuehlte Mehrzylinder-Brennkraftmaschinen
EP0063809A2 (fr) Culasse à quatre soupapes pour un moteur à combustion interne
DE3029813A1 (de) Viertakt-brennkraftmaschine
DE3435386A1 (de) Luftgekuehlte mehrzylinder-brennkraftmaschine
AT402433B (de) Zylinderkopf für eine brennkraftmaschine
DE2739605A1 (de) Ansaugkasten fuer brennkraftmaschinen
DE1296460B (de) Zylinderkopf fuer Brennkraftmaschinen mit zwei Einlass- und zwei Auslassventilen je Zylinder
EP1329628B1 (fr) Culasse pour un moteur à combustion à pistons avec un système de canaux de refroidissement
DE2818436A1 (de) Zylinderkopf einer brennkraftmaschine
DE69221651T2 (de) Einlasssystem für eine Brennkraftmaschine
EP0123101B1 (fr) Culasse pour moteur à combustion interne alternatif à refroissement par air
DE3909176C2 (de) Druckventileinrichtung für einen Kolbenkompressor
DE4002442A1 (de) Zylinderkopf fuer einen mit einem brennstoff-luftgemisch arbeitenden motor
DE19534904B4 (de) Zylinderkopf einer Brennkraftmaschine
DE69002222T2 (de) Kühlsystem für eine Brennkraftmaschine mit mehreren Ventilen.
DE4438618B4 (de) Zylinderkopf für Hochleistungs-Verbrennungsmotor mit innerer Verbrennung

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): AT BE CH DE FR GB IT LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19830811

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

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19850615

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KRAUSER, MICHAEL