JPS57183553A - Intake device of 4-cycle engine - Google Patents

Intake device of 4-cycle engine

Info

Publication number
JPS57183553A
JPS57183553A JP6910081A JP6910081A JPS57183553A JP S57183553 A JPS57183553 A JP S57183553A JP 6910081 A JP6910081 A JP 6910081A JP 6910081 A JP6910081 A JP 6910081A JP S57183553 A JPS57183553 A JP S57183553A
Authority
JP
Japan
Prior art keywords
intake
valves
bore
passages
intake valve
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.)
Granted
Application number
JP6910081A
Other languages
Japanese (ja)
Other versions
JPH0131035B2 (en
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 JP6910081A priority Critical patent/JPS57183553A/en
Publication of JPS57183553A publication Critical patent/JPS57183553A/en
Priority to US06/704,155 priority patent/US4658780A/en
Publication of JPH0131035B2 publication Critical patent/JPH0131035B2/ja
Granted 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
    • F02F1/242—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
    • 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
    • F02F1/42—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
    • 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)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

PURPOSE:To uniformly supply a quantity of intake air to each intake valve in a 4-cycle engine having at least three intake valves. CONSTITUTION:When four intake valve are provided, an intake valve 16A is located in the center 12 of a bore, while an intake valve 16B is located on a center axial line 14 of the bore. The other valves 16C, 16D are located so as to hold the valves 16A, 16B. Alphanumerals 18A-18C show exhaust valves. Intake passages 22, 24 are formed to a cylinder head 26 so as to be symmetrical for the bore center axial line 14. The intake passages 22, 24 are divided into two branches on the half way. That is, intake air flows into the intake valves 16A, 16B from branch passages 22A, 24A and 22B, 24B of each intake passage 22, 24. Accordingly, if sectional area and curvature of the branch passage are adequately selected, a suitable amount of intake air can be smoothly supplied to the all intake valves in no relation to rotary speed of an engine.
JP6910081A 1981-05-08 1981-05-08 Intake device of 4-cycle engine Granted JPS57183553A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP6910081A JPS57183553A (en) 1981-05-08 1981-05-08 Intake device of 4-cycle engine
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
JP6910081A JPS57183553A (en) 1981-05-08 1981-05-08 Intake device of 4-cycle engine

Publications (2)

Publication Number Publication Date
JPS57183553A true JPS57183553A (en) 1982-11-11
JPH0131035B2 JPH0131035B2 (en) 1989-06-22

Family

ID=13392859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6910081A Granted JPS57183553A (en) 1981-05-08 1981-05-08 Intake device of 4-cycle engine

Country Status (1)

Country Link
JP (1) JPS57183553A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549510A (en) * 1983-11-25 1985-10-29 Honda Giken Kogyo Kabushiki Kaisha Arrangement of multiple valves for an internal combustion engine
US4570590A (en) * 1984-07-10 1986-02-18 Toyota Jidosha Kabushiki Kaisha Internal combustion engine with multiple intake valves
US4615309A (en) * 1984-04-11 1986-10-07 Yamaha Hatsudoki Kabushiki Kaisha Valve actuating mechanism for internal combustion engine
US4617896A (en) * 1985-03-14 1986-10-21 Yamaha Hatsudoki Kabushiki Kaisha Internal combustion engine having three intake valves per cylinder
US4627400A (en) * 1984-07-27 1986-12-09 Yamaha Hatsudoki Kabushiki Kaisha Porting system for internal combustion engine
JPS6232220A (en) * 1985-08-05 1987-02-12 H K S:Kk Intake and exhaust device in engine
US4651696A (en) * 1984-08-16 1987-03-24 Yamaha Hatsudoki Kabushiki Kaisha Four-stroke internal combustion engine
DE3909837A1 (en) * 1989-03-25 1990-09-27 Audi Ag SUCTION PIPE SYSTEM FOR A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE
US5950582A (en) * 1998-06-08 1999-09-14 Ford Global Technologies, Inc. Internal combustion engine with variable camshaft timing and intake valve masking
US5957096A (en) * 1998-06-09 1999-09-28 Ford Global Technologies, Inc. Internal combustion engine with variable camshaft timing, charge motion control valve, and variable air/fuel ratio
US5960755A (en) * 1998-06-09 1999-10-05 Ford Global Technologies, Inc. Internal combustion engine with variable camshaft timing and variable duration exhaust event

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54152802U (en) * 1978-04-17 1979-10-24
JPS569637A (en) * 1979-06-07 1981-01-31 Cummins Engine Co Inc Energy conservation exhaust passage for internal combustion engine
JPS5638509A (en) * 1979-09-06 1981-04-13 Honda Motor Co Ltd Driving device for suction and exhaust valve cam shaft of four-cycle internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54152802U (en) * 1978-04-17 1979-10-24
JPS569637A (en) * 1979-06-07 1981-01-31 Cummins Engine Co Inc Energy conservation exhaust passage for internal combustion engine
JPS5638509A (en) * 1979-09-06 1981-04-13 Honda Motor Co Ltd Driving device for suction and exhaust valve cam shaft of four-cycle internal combustion engine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4549510A (en) * 1983-11-25 1985-10-29 Honda Giken Kogyo Kabushiki Kaisha Arrangement of multiple valves for an internal combustion engine
US4615309A (en) * 1984-04-11 1986-10-07 Yamaha Hatsudoki Kabushiki Kaisha Valve actuating mechanism for internal combustion engine
US4570590A (en) * 1984-07-10 1986-02-18 Toyota Jidosha Kabushiki Kaisha Internal combustion engine with multiple intake valves
US4627400A (en) * 1984-07-27 1986-12-09 Yamaha Hatsudoki Kabushiki Kaisha Porting system for internal combustion engine
US4651696A (en) * 1984-08-16 1987-03-24 Yamaha Hatsudoki Kabushiki Kaisha Four-stroke internal combustion engine
US4617896A (en) * 1985-03-14 1986-10-21 Yamaha Hatsudoki Kabushiki Kaisha Internal combustion engine having three intake valves per cylinder
JPS6232220A (en) * 1985-08-05 1987-02-12 H K S:Kk Intake and exhaust device in engine
DE3909837A1 (en) * 1989-03-25 1990-09-27 Audi Ag SUCTION PIPE SYSTEM FOR A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE
US5950582A (en) * 1998-06-08 1999-09-14 Ford Global Technologies, Inc. Internal combustion engine with variable camshaft timing and intake valve masking
US5957096A (en) * 1998-06-09 1999-09-28 Ford Global Technologies, Inc. Internal combustion engine with variable camshaft timing, charge motion control valve, and variable air/fuel ratio
US5960755A (en) * 1998-06-09 1999-10-05 Ford Global Technologies, Inc. Internal combustion engine with variable camshaft timing and variable duration exhaust event

Also Published As

Publication number Publication date
JPH0131035B2 (en) 1989-06-22

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