EP1460238A3 - Overhead cam engine - Google Patents

Overhead cam engine Download PDF

Info

Publication number
EP1460238A3
EP1460238A3 EP04100944A EP04100944A EP1460238A3 EP 1460238 A3 EP1460238 A3 EP 1460238A3 EP 04100944 A EP04100944 A EP 04100944A EP 04100944 A EP04100944 A EP 04100944A EP 1460238 A3 EP1460238 A3 EP 1460238A3
Authority
EP
European Patent Office
Prior art keywords
cam
intake
exhaust valve
axis line
cylinder head
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
EP04100944A
Other languages
German (de)
French (fr)
Other versions
EP1460238A2 (en
EP1460238B1 (en
Inventor
Hiroyuki Tanaka
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.)
Honda Motor Co Ltd
Original Assignee
Honda 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Publication of EP1460238A2 publication Critical patent/EP1460238A2/en
Publication of EP1460238A3 publication Critical patent/EP1460238A3/en
Application granted granted Critical
Publication of EP1460238B1 publication Critical patent/EP1460238B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F01L1/02—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
    • 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
    • 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
    • F02F1/38—Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead valve type
    • 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
    • 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
    • F01L2305/00—Valve arrangements comprising rollers
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/04—Sensors
    • F01L2820/041—Camshafts position or phase sensors
    • 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]

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)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

To compact a combustion chamber and downsize a cylinder head (16F) in an overhead cam engine, wherein a cam shaft (131) is provided between intake and exhaust valve springs (129, 130) and is rotatably supported by the cylinder head (16F); and wherein the cam shaft (131) is provided with a first cam (142) to drive one of an intake valve (127) and an exhaust valve (128) and is provided with a second cam (143) to drive the other of the intake valve (127) and the exhaust valve (128).
A cylinder head (16F) supports a cam shaft (131) with its axis line approximately disposed above a cylinder axis line. A second cam (143) is disposed between intake and exhaust valve springs (129, 130) and is formed to be smaller than a first cam (142). The first cam (142) is disposed farther from the position between the intake and exhaust valve springs (129, 130) along the direction of the axis line of the cam shaft (131).
EP04100944A 2003-03-18 2004-03-09 Overhead cam engine Expired - Lifetime EP1460238B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003073060A JP4025667B2 (en) 2003-03-18 2003-03-18 Overhead cam type engine
JP2003073060 2003-03-18

Publications (3)

Publication Number Publication Date
EP1460238A2 EP1460238A2 (en) 2004-09-22
EP1460238A3 true EP1460238A3 (en) 2005-08-24
EP1460238B1 EP1460238B1 (en) 2008-02-06

Family

ID=32821301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04100944A Expired - Lifetime EP1460238B1 (en) 2003-03-18 2004-03-09 Overhead cam engine

Country Status (5)

Country Link
EP (1) EP1460238B1 (en)
JP (1) JP4025667B2 (en)
CN (1) CN1317488C (en)
ES (1) ES2301934T3 (en)
TW (1) TWI240040B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4244307B2 (en) * 2003-08-15 2009-03-25 本田技研工業株式会社 Water-cooled engine
JP4382010B2 (en) * 2005-06-23 2009-12-09 本田技研工業株式会社 Engine valve gear
JP4939190B2 (en) 2006-11-30 2012-05-23 本田技研工業株式会社 Power unit for small vehicles
JP5219883B2 (en) * 2009-02-24 2013-06-26 本田技研工業株式会社 Starter motor arrangement structure of internal combustion engine
JP2018188960A (en) * 2015-09-29 2018-11-29 ヤマハ発動機株式会社 Engine for saddle type vehicle
JP2018066338A (en) * 2016-10-20 2018-04-26 ヤマハ発動機株式会社 engine
CN106523059A (en) * 2017-01-17 2017-03-22 厦门大学嘉庚学院 Low-energy-consumption V-shaped four-air-valve engine provided with conical camshafts and working method of engine
CN108798815B (en) * 2018-06-26 2024-03-15 重庆隆鑫发动机有限公司 Valve mechanism and motorcycle engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412720A (en) * 1966-07-07 1968-11-26 Porsche Kg Overhead camshaft assembly for internal combustion engines
EP0422277A1 (en) * 1989-10-12 1991-04-17 Yamaha Motor Co., Ltd. Combustion chamber and valve operating mechanism for multi-valve engine
EP0607918A1 (en) * 1993-01-18 1994-07-27 Honda Giken Kogyo Kabushiki Kaisha SOHC-type valve operating system in internal combustion engine
US5988129A (en) * 1998-09-21 1999-11-23 General Motors Corporation Engine lubrication system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4883027A (en) * 1987-11-25 1989-11-28 Honda Giken Kogyo Kabushiki Kaisha Valve operating system for internal combustion engines
JP2849939B2 (en) * 1990-05-07 1999-01-27 本田技研工業株式会社 SOHC type internal combustion engine
JP2612788B2 (en) * 1991-09-04 1997-05-21 本田技研工業株式会社 Valve train for internal combustion engine
CN1032740C (en) * 1992-02-03 1996-09-11 本田技研工业株式会社 Exhaust gas cleaning device for motorcycles
CN2363063Y (en) * 1998-10-29 2000-02-09 周国平 Wearing-resistant swing-arm for engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412720A (en) * 1966-07-07 1968-11-26 Porsche Kg Overhead camshaft assembly for internal combustion engines
EP0422277A1 (en) * 1989-10-12 1991-04-17 Yamaha Motor Co., Ltd. Combustion chamber and valve operating mechanism for multi-valve engine
EP0607918A1 (en) * 1993-01-18 1994-07-27 Honda Giken Kogyo Kabushiki Kaisha SOHC-type valve operating system in internal combustion engine
US5988129A (en) * 1998-09-21 1999-11-23 General Motors Corporation Engine lubrication system

Also Published As

Publication number Publication date
ES2301934T3 (en) 2008-07-01
JP4025667B2 (en) 2007-12-26
EP1460238A2 (en) 2004-09-22
CN1530521A (en) 2004-09-22
EP1460238B1 (en) 2008-02-06
TW200424424A (en) 2004-11-16
CN1317488C (en) 2007-05-23
TWI240040B (en) 2005-09-21
JP2004278447A (en) 2004-10-07

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