JPS57186009A - Valve moving mechanism for internal combustion engine with overhead cam shafts - Google Patents

Valve moving mechanism for internal combustion engine with overhead cam shafts

Info

Publication number
JPS57186009A
JPS57186009A JP56070331A JP7033181A JPS57186009A JP S57186009 A JPS57186009 A JP S57186009A JP 56070331 A JP56070331 A JP 56070331A JP 7033181 A JP7033181 A JP 7033181A JP S57186009 A JPS57186009 A JP S57186009A
Authority
JP
Japan
Prior art keywords
intake
valves
exhaust
valve lifters
cam shafts
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.)
Pending
Application number
JP56070331A
Other languages
Japanese (ja)
Inventor
Koji Hosoi
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
Application filed by Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP56070331A priority Critical patent/JPS57186009A/en
Publication of JPS57186009A publication Critical patent/JPS57186009A/en
Priority to US06/704,155 priority patent/US4658780A/en
Pending 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
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/143—Tappets; Push rods for use with overhead camshafts
    • 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
    • F01L1/265—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 peculiar to machines or engines with three or more intake 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
    • F02F1/242—Arrangement of spark plugs or injectors
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • F02B2023/085—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition using several spark plugs 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
    • 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
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

PURPOSE:To greatly reduce the weight of moving parts, by providing push plates between the parallel spindles of intake and exhaust valves and valve lifters which are pushed by cam shafts, and by using the push plates to simultaneously open and close the plural valves. CONSTITUTION:When valve lifters 54 are simultaneously pushed down by two cams 62 on an intake cam shaft 52 in the process of intake, push plates 56 descend together with the valve lifters to uniformly and simultaneously push the ends 32 of the spindles of four intake valves 16 downward. As a result, valve springs 40 are compressed to simultaneously open the valves 16 to introduce the intake mixture into the combustion chamber through an intake passage 24. In the process of exhaust, two valve lifters 76 and a single push plate 78 are pushed down by exhaust cams 88 to simultaneously open three exhaust valves 18.
JP56070331A 1981-05-08 1981-05-11 Valve moving mechanism for internal combustion engine with overhead cam shafts Pending JPS57186009A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56070331A JPS57186009A (en) 1981-05-11 1981-05-11 Valve moving mechanism for internal combustion engine with overhead cam shafts
US06/704,155 US4658780A (en) 1981-05-08 1985-02-22 Four cycle internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56070331A JPS57186009A (en) 1981-05-11 1981-05-11 Valve moving mechanism for internal combustion engine with overhead cam shafts

Publications (1)

Publication Number Publication Date
JPS57186009A true JPS57186009A (en) 1982-11-16

Family

ID=13428332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56070331A Pending JPS57186009A (en) 1981-05-08 1981-05-11 Valve moving mechanism for internal combustion engine with overhead cam shafts

Country Status (1)

Country Link
JP (1) JPS57186009A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60162202U (en) * 1984-04-06 1985-10-28 スズキ株式会社 4-stroke engine valve actuator
US4624222A (en) * 1984-04-11 1986-11-25 Yamaha Hatsudoki Kabushiki Kaisha Intake valve structure for internal combustion engine
US4627400A (en) * 1984-07-27 1986-12-09 Yamaha Hatsudoki Kabushiki Kaisha Porting system for internal combustion engine
DE3524622A1 (en) * 1985-07-10 1987-01-15 Audi Ag Four-stroke internal combustion engine
US4638774A (en) * 1984-06-12 1987-01-27 Yamaha Hatsudoki Kabushiki Kaisha Valve actuating mechanism for internal combustion engine
US4679532A (en) * 1984-08-15 1987-07-14 Yamaha Hatsudoki Kabushiki Kaisha Valve arrangement for internal combustion engine
US5031586A (en) * 1989-09-28 1991-07-16 Mazda Motor Corporation Multi-valve engine
US11319842B2 (en) 2018-11-06 2022-05-03 Jacobs Vehicle Systems, Inc. Valve bridge comprising concave chambers

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60162202U (en) * 1984-04-06 1985-10-28 スズキ株式会社 4-stroke engine valve actuator
JPH0350247Y2 (en) * 1984-04-06 1991-10-28
US4624222A (en) * 1984-04-11 1986-11-25 Yamaha Hatsudoki Kabushiki Kaisha Intake valve structure for internal combustion engine
US4638774A (en) * 1984-06-12 1987-01-27 Yamaha Hatsudoki Kabushiki Kaisha Valve actuating mechanism for internal combustion engine
US4627400A (en) * 1984-07-27 1986-12-09 Yamaha Hatsudoki Kabushiki Kaisha Porting system for internal combustion engine
US4679532A (en) * 1984-08-15 1987-07-14 Yamaha Hatsudoki Kabushiki Kaisha Valve arrangement for internal combustion engine
DE3524622A1 (en) * 1985-07-10 1987-01-15 Audi Ag Four-stroke internal combustion engine
US5031586A (en) * 1989-09-28 1991-07-16 Mazda Motor Corporation Multi-valve engine
US11319842B2 (en) 2018-11-06 2022-05-03 Jacobs Vehicle Systems, Inc. Valve bridge comprising concave chambers

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