EP2031195A3 - Engine and vehicle - Google Patents

Engine and vehicle Download PDF

Info

Publication number
EP2031195A3
EP2031195A3 EP08252811A EP08252811A EP2031195A3 EP 2031195 A3 EP2031195 A3 EP 2031195A3 EP 08252811 A EP08252811 A EP 08252811A EP 08252811 A EP08252811 A EP 08252811A EP 2031195 A3 EP2031195 A3 EP 2031195A3
Authority
EP
European Patent Office
Prior art keywords
cylinder head
rocker arm
rocker
engine
head cover
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
EP08252811A
Other languages
German (de)
French (fr)
Other versions
EP2031195A2 (en
EP2031195B1 (en
Inventor
Naoki Onimura
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
Publication of EP2031195A2 publication Critical patent/EP2031195A2/en
Publication of EP2031195A3 publication Critical patent/EP2031195A3/en
Application granted granted Critical
Publication of EP2031195B1 publication Critical patent/EP2031195B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • 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
    • 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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/205—Adjusting or compensating clearance by means of shims or the like
    • 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
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • 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
    • F01L2800/00—Methods of operation using a variable valve timing mechanism
    • F01L2800/17—Maintenance; Servicing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

To provide a structure for determining a position of a rocker arm (412,413) that allows easy maintenance, an engine (100) has a cylinder head (113) in which a valve drive mechanism (400) is provided. The valve drive mechanism (400) includes rocker arm shafts (414,415) that are fitted to the cylinder head (113); rocker arms (412,413) that are fitted to the rocker arm shafts (414,415) so as to be moveable in the axial direction; and a head cover (114) (an upper arranging member) that is attached to the cylinder head (113). The head cover (114) is provided with guide members (731,732) that engage with the rocker arms (412,413), and guide the rocker arms (412,413) to determined positions on the rocker arm shafts (414,415) when the head cover (114) is attached to the cylinder head (113).
EP08252811A 2007-08-31 2008-08-22 Engine and vehicle Active EP2031195B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007226672A JP2009057914A (en) 2007-08-31 2007-08-31 Engine and vehicle

Publications (3)

Publication Number Publication Date
EP2031195A2 EP2031195A2 (en) 2009-03-04
EP2031195A3 true EP2031195A3 (en) 2010-04-14
EP2031195B1 EP2031195B1 (en) 2011-08-03

Family

ID=40070847

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08252811A Active EP2031195B1 (en) 2007-08-31 2008-08-22 Engine and vehicle

Country Status (6)

Country Link
EP (1) EP2031195B1 (en)
JP (1) JP2009057914A (en)
CN (1) CN101377137B (en)
AT (1) ATE519019T1 (en)
ES (1) ES2367461T3 (en)
TW (1) TWI359229B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI595154B (en) * 2013-10-09 2017-08-11 Kwang Yang Motor Co Engine cylinder head structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4724804A (en) * 1987-02-24 1988-02-16 General Motors Corporation Engine valve train module
US4724805A (en) * 1987-02-24 1988-02-16 General Motors Corporation Engine valve train module
JPS63124812A (en) * 1986-11-13 1988-05-28 Fuji Heavy Ind Ltd Valve actuating system supporting device for four-valve engine
US20050061274A1 (en) * 2003-09-22 2005-03-24 Yasuyuki Nakahira Valve drive system for four-stroke engine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4343021B2 (en) * 2004-04-28 2009-10-14 本田技研工業株式会社 Valve operating device for internal combustion engine
JP4566071B2 (en) 2005-06-15 2010-10-20 本田技研工業株式会社 Internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63124812A (en) * 1986-11-13 1988-05-28 Fuji Heavy Ind Ltd Valve actuating system supporting device for four-valve engine
US4724804A (en) * 1987-02-24 1988-02-16 General Motors Corporation Engine valve train module
US4724805A (en) * 1987-02-24 1988-02-16 General Motors Corporation Engine valve train module
US20050061274A1 (en) * 2003-09-22 2005-03-24 Yasuyuki Nakahira Valve drive system for four-stroke engine

Also Published As

Publication number Publication date
JP2009057914A (en) 2009-03-19
TWI359229B (en) 2012-03-01
CN101377137A (en) 2009-03-04
CN101377137B (en) 2011-08-31
ES2367461T3 (en) 2011-11-03
ATE519019T1 (en) 2011-08-15
TW200912123A (en) 2009-03-16
EP2031195A2 (en) 2009-03-04
EP2031195B1 (en) 2011-08-03

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