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ES2044378T3 - REFRIGERATION SYSTEM FOR A MULTIVALVULAS ENGINE. - Google Patents

REFRIGERATION SYSTEM FOR A MULTIVALVULAS ENGINE.

Info

Publication number
ES2044378T3
ES2044378T3 ES90122883T ES90122883T ES2044378T3 ES 2044378 T3 ES2044378 T3 ES 2044378T3 ES 90122883 T ES90122883 T ES 90122883T ES 90122883 T ES90122883 T ES 90122883T ES 2044378 T3 ES2044378 T3 ES 2044378T3
Authority
ES
Spain
Prior art keywords
receptacle
multivalvulas
engine
cylinder head
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 - Lifetime
Application number
ES90122883T
Other languages
Spanish (es)
Inventor
Kenichi Nonogawa
Makoto Shimamoto
Wataru Fuchigami
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co Ltd
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 claimed from JP1309466A external-priority patent/JP2749161B2/en
Priority claimed from JP1321157A external-priority patent/JP2815066B2/en
Application filed by Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Application granted granted Critical
Publication of ES2044378T3 publication Critical patent/ES2044378T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/12—Arrangements for cooling other engine or machine parts
    • F01P3/14—Arrangements for cooling other engine or machine parts for cooling intake or exhaust valves
    • 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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/108—Siamese-type cylinders, i.e. cylinders cast together
    • 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
    • F02F1/242—Arrangement of spark plugs or injectors
    • 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
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream 
    • 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
    • F02F1/4221—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder particularly for three or more inlet valves
    • 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
    • F01L2003/251—Large number of valves, e.g. five or more
    • 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
    • F02B2275/20—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

UN MONTAJE DE REFRIGERACION PARA MOTORES MULTI-VALVULA QUE TIENE UN PAR ADYACENTE DE LUMBRERAS DE ESCAPE QUE SE EXTIENDEN DESDE LA CAMARA DE COMBUSTION HASTA LAS LUMBRERAS DE ESCAPE ABIERTAS COLOCADAS AL LADO DE LA CABEZA DEL CILINDRO. EL RECEPTACULO DE LA BUJIA DE ENCENDIDO (83) SE FORMA ENTRE LOS TRAMOS DE ESCAPE (66) Y DE ESE MODO SE FORMA UNA PARED VERTICAL QUE IMPOSIBILITA EL PASO DEL FLUJO REFRIGERANTE ENTRE LOS TRAMOS DE ESCAPE AL LADO OPUESTO DE LA CABEZA DEL CILINDRO. VARIAS FORMULAS DE ARREGLOS SE PROVEEN PARA ASEGURAR LA CIRCULACION FLUIDA DEL REFRIGERANTE MEDIANTE UNA ENVOLTURA SUB-REFRIGERANTE FORMADA ENTRE LOS TRAMOS Y EL RECEPTACULO DE LA BUJIA DE ENCENDIDO.A COOLING ASSEMBLY FOR MULTI-VALVE ENGINES THAT HAS AN ADJACENT PAIR OF EXHAUST HOLES THAT EXTEND FROM THE OPEN COMBUSTION CHAMBER TO THE SIDE OF THE CYLINDER HEAD. THE RECEPTACLE OF THE IGNITION SPARK PLUG (83) IS FORMED BETWEEN THE EXHAUST STREAMS (66) AND THEREFORE A VERTICAL WALL IS FORMED THAT IMPOSSIBLE THE PASSAGE OF THE COOLING FLOW BETWEEN THE EXHAUST STREAMS ON THE OPPOSITE SIDE OF THE CYLINDER HEAD. SEVERAL ARRANGEMENT FORMS ARE PROVIDED TO ENSURE THE FLUID CIRCULATION OF THE REFRIGERANT THROUGH A SUB-REFRIGERANT ENVELOPE FORMED BETWEEN THE SECTIONS AND THE RECEPTACLE OF THE IGNITION SPARK PLUG.

ES90122883T 1989-11-29 1990-11-29 REFRIGERATION SYSTEM FOR A MULTIVALVULAS ENGINE. Expired - Lifetime ES2044378T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1309466A JP2749161B2 (en) 1989-11-29 1989-11-29 Valve train for SOHC engine
JP1321157A JP2815066B2 (en) 1989-12-11 1989-12-11 Cooling structure of 4-cycle engine

Publications (1)

Publication Number Publication Date
ES2044378T3 true ES2044378T3 (en) 1994-01-01

Family

ID=26565966

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90122883T Expired - Lifetime ES2044378T3 (en) 1989-11-29 1990-11-29 REFRIGERATION SYSTEM FOR A MULTIVALVULAS ENGINE.

Country Status (3)

Country Link
EP (1) EP0430258B1 (en)
DE (1) DE69002222T2 (en)
ES (1) ES2044378T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10035239B4 (en) * 2000-07-20 2011-04-21 Daimler Ag Internal combustion engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115125A (en) * 1961-09-25 1963-12-24 Charles O Spencer Internal combustion engine cooling system
DE1476397A1 (en) * 1965-01-05 1969-05-29 Motoren Werke Mannheim Ag Water-cooled internal combustion engine
US3377996A (en) * 1965-12-10 1968-04-16 Gen Motors Corp Cylinder head for internal combustion engine
US3818878A (en) * 1973-04-23 1974-06-25 Gen Motors Corp Improved cylinder head cooling
DE2460972C2 (en) * 1974-12-21 1982-07-15 Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen Liquid-cooled cylinder head

Also Published As

Publication number Publication date
DE69002222D1 (en) 1993-08-19
EP0430258B1 (en) 1993-07-14
DE69002222T2 (en) 1993-10-28
EP0430258A1 (en) 1991-06-05

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