EP1013898A3 - Valve operating system in internal combustion engine - Google Patents

Valve operating system in internal combustion engine Download PDF

Info

Publication number
EP1013898A3
EP1013898A3 EP99125230A EP99125230A EP1013898A3 EP 1013898 A3 EP1013898 A3 EP 1013898A3 EP 99125230 A EP99125230 A EP 99125230A EP 99125230 A EP99125230 A EP 99125230A EP 1013898 A3 EP1013898 A3 EP 1013898A3
Authority
EP
European Patent Office
Prior art keywords
support
valve operating
swinging
rocker arm
wall portions
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
EP99125230A
Other languages
German (de)
French (fr)
Other versions
EP1013898A2 (en
EP1013898B1 (en
Inventor
Toshiyuki Sato
Toshihiro Oikawa
Toshihiro Kamiyama
Mamoru Kosuge
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
Priority claimed from JP36438098A external-priority patent/JP3542294B2/en
Priority claimed from JP35180099A external-priority patent/JP3320046B2/en
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Publication of EP1013898A2 publication Critical patent/EP1013898A2/en
Publication of EP1013898A3 publication Critical patent/EP1013898A3/en
Application granted granted Critical
Publication of EP1013898B1 publication Critical patent/EP1013898B1/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
    • F01L1/02—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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-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
    • F01L1/26—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
    • F01L1/267—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 with means for varying the timing or the lift of the 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
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

A valve operating system in an internal combustion engine includes a cam shaft provided with a valve operating cam, a rocker arm having a pair of support wall portions which are integrally connected at their base ends to a swinging support portion swingably supported on a support member mounted on a cylinder head and which are opposed to each other at a distance in a direction along the swinging axis of the swinging support portion, a support shaft supported between the support wall portions, and a roller which is rotatably supported on the support shaft with a bearing interposed therebetween so as to be in rolling contact with the valve operating cam. A lower connecting wall interconnecting lower portions of the base ends of the support wall portions is projectingly provided on the swinging support portion in a manner opposed to an outer peripheral surface of a lower portion of the roller. Thus, it is possible to increase the rigidity of the rocker arm, while avoiding an increase in size of the rocker arm.
EP19990125230 1998-12-22 1999-12-17 Valve operating system in internal combustion engine Expired - Lifetime EP1013898B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP36438098A JP3542294B2 (en) 1998-12-22 1998-12-22 Valve train for internal combustion engine
JP36438098 1998-12-22
JP37634598 1998-12-23
JP37634598 1998-12-23
JP35180099A JP3320046B2 (en) 1998-12-23 1999-12-10 Valve train for internal combustion engine
JP35180099 1999-12-10

Publications (3)

Publication Number Publication Date
EP1013898A2 EP1013898A2 (en) 2000-06-28
EP1013898A3 true EP1013898A3 (en) 2000-10-04
EP1013898B1 EP1013898B1 (en) 2005-08-03

Family

ID=27341392

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990125230 Expired - Lifetime EP1013898B1 (en) 1998-12-22 1999-12-17 Valve operating system in internal combustion engine

Country Status (3)

Country Link
EP (1) EP1013898B1 (en)
CA (1) CA2293000C (en)
DE (1) DE69926475T2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130042830A1 (en) * 2010-04-07 2013-02-21 Toyota Jidosha Kabushiki Kaisha Valve operating apparatus for internal combustion engine
JP6234310B2 (en) 2014-04-08 2017-11-22 株式会社オティックス Variable valve mechanism for internal combustion engine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727832A (en) * 1986-06-13 1988-03-01 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Roller rocker arm
EP0275714A1 (en) * 1986-12-27 1988-07-27 Honda Giken Kogyo Kabushiki Kaisha Valve operating means in internal combustion engine
EP0364069A1 (en) * 1988-10-11 1990-04-18 Honda Giken Kogyo Kabushiki Kaisha Valve operating system of internal combustion engine
JPH06159018A (en) * 1992-11-21 1994-06-07 Otix:Kk Manufacture of locker arm with roller
US5651336A (en) * 1995-12-26 1997-07-29 Chrysler Corporation Variable valve timing and lift mechanism
US5669342A (en) * 1994-04-14 1997-09-23 Ina Walzlager Schaeffler Kg Device for simultaneous actuation of at least two gas exchange valves
DE19640520A1 (en) * 1996-07-20 1998-04-09 Dieter Dipl Ing Reitz Valve train and cylinder head of an internal combustion engine
EP0887519A1 (en) * 1997-06-24 1998-12-30 Honda Giken Kogyo Kabushiki Kaisha Valve operating system in internal combustion engine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727832A (en) * 1986-06-13 1988-03-01 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Roller rocker arm
EP0275714A1 (en) * 1986-12-27 1988-07-27 Honda Giken Kogyo Kabushiki Kaisha Valve operating means in internal combustion engine
EP0364069A1 (en) * 1988-10-11 1990-04-18 Honda Giken Kogyo Kabushiki Kaisha Valve operating system of internal combustion engine
JPH06159018A (en) * 1992-11-21 1994-06-07 Otix:Kk Manufacture of locker arm with roller
US5669342A (en) * 1994-04-14 1997-09-23 Ina Walzlager Schaeffler Kg Device for simultaneous actuation of at least two gas exchange valves
US5651336A (en) * 1995-12-26 1997-07-29 Chrysler Corporation Variable valve timing and lift mechanism
DE19640520A1 (en) * 1996-07-20 1998-04-09 Dieter Dipl Ing Reitz Valve train and cylinder head of an internal combustion engine
EP0887519A1 (en) * 1997-06-24 1998-12-30 Honda Giken Kogyo Kabushiki Kaisha Valve operating system in internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 491 (M - 1672) 13 September 1994 (1994-09-13) *

Also Published As

Publication number Publication date
EP1013898A2 (en) 2000-06-28
EP1013898B1 (en) 2005-08-03
CA2293000A1 (en) 2000-06-22
DE69926475D1 (en) 2005-09-08
DE69926475T2 (en) 2006-04-06
CA2293000C (en) 2005-08-02

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