EP1207274A3 - Valve system for OHV-type four-cylinder internal combustion engine - Google Patents

Valve system for OHV-type four-cylinder internal combustion engine Download PDF

Info

Publication number
EP1207274A3
EP1207274A3 EP01121464A EP01121464A EP1207274A3 EP 1207274 A3 EP1207274 A3 EP 1207274A3 EP 01121464 A EP01121464 A EP 01121464A EP 01121464 A EP01121464 A EP 01121464A EP 1207274 A3 EP1207274 A3 EP 1207274A3
Authority
EP
European Patent Office
Prior art keywords
combustion engine
internal combustion
ohv
type
valve system
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
EP01121464A
Other languages
German (de)
French (fr)
Other versions
EP1207274B1 (en
EP1207274A2 (en
Inventor
Minoru K.K. Honda Gijutsu Kenkyusho Matsuda
Makoto K.K. Honda Gijutsu Kenkyusho Sanada
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 EP1207274A2 publication Critical patent/EP1207274A2/en
Publication of EP1207274A3 publication Critical patent/EP1207274A3/en
Application granted granted Critical
Publication of EP1207274B1 publication Critical patent/EP1207274B1/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
    • 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
    • F01L1/026—Gear 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
    • 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
    • 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
    • F01L1/146—Push-rods
    • 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
    • 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
    • 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
    • F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
    • F02B75/243—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type with only one crankshaft of the "boxer" type, e.g. all connecting rods attached to separate crankshaft bearings
    • 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
    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1816—Number of cylinders four

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)
  • Valve Device For Special Equipments (AREA)

Abstract

Problem: In a valve system for OHV-type horizontal opposed type four-cycle internal combustion engine, to contrive large reduction of the weight and size of piston heads at which intake and exhaust valves of the internal combustion engine are disposed. Means of Solution: Valve camshafts (26i, 26e) are provided at crankcase portions (2L, 2R) for supporting a crankshaft(1), of left and right cylinder banks(CB1, CB2) disposed on opposite sides of the crankshaft(1). Intake and exhaust valves (14, 15)provided at cylinder heads (4L, 4R) are opened and closed by pull rods (20i, 20e) operated by the valve camshafts (26i, 26e). <IMAGE>
EP01121464A 2000-11-16 2001-09-07 Valve system for OHV-type four-cylinder internal combustion engine Expired - Lifetime EP1207274B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000349705 2000-11-16
JP2000349705 2000-11-16

Publications (3)

Publication Number Publication Date
EP1207274A2 EP1207274A2 (en) 2002-05-22
EP1207274A3 true EP1207274A3 (en) 2003-03-19
EP1207274B1 EP1207274B1 (en) 2005-02-23

Family

ID=18823057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01121464A Expired - Lifetime EP1207274B1 (en) 2000-11-16 2001-09-07 Valve system for OHV-type four-cylinder internal combustion engine

Country Status (4)

Country Link
EP (1) EP1207274B1 (en)
AT (1) ATE289653T1 (en)
CA (1) CA2360399A1 (en)
DE (1) DE60109010T2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6883485B2 (en) * 2001-12-07 2005-04-26 Honda Giken Kogyo Kabushiki Kaisha OHV and gear mechanism for engine
JP2005042653A (en) * 2003-07-24 2005-02-17 Honda Motor Co Ltd Liquid cooled engine
JP2005042667A (en) * 2003-07-25 2005-02-17 Honda Motor Co Ltd Multiple cylinder engine
DE102018125388B4 (en) * 2018-10-15 2021-04-15 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Two-part crankcase for a boxer engine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB138803A (en) * 1919-06-16 1920-02-19 Herbert Woodgate Improvements in the valve gear of internal combustion engines
US1524150A (en) * 1919-02-06 1925-01-27 Willys Overland Co Valve-operating mechanism
US1725672A (en) * 1928-01-17 1929-08-20 Richard A Peglar Pull rod
CH260172A (en) * 1943-06-08 1949-02-28 Julien Maurice Francois Alexan Internal combustion engine.
DE4001514A1 (en) * 1989-01-20 1990-08-02 Fuji Heavy Ind Ltd CRANKCASE FOR A BOXER ENGINE
GB2342394A (en) * 1998-10-05 2000-04-12 Honda Motor Co Ltd I.c. engine with offset intake and exhaust valves operated directly by a single overhead camshaft

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524150A (en) * 1919-02-06 1925-01-27 Willys Overland Co Valve-operating mechanism
GB138803A (en) * 1919-06-16 1920-02-19 Herbert Woodgate Improvements in the valve gear of internal combustion engines
US1725672A (en) * 1928-01-17 1929-08-20 Richard A Peglar Pull rod
CH260172A (en) * 1943-06-08 1949-02-28 Julien Maurice Francois Alexan Internal combustion engine.
DE4001514A1 (en) * 1989-01-20 1990-08-02 Fuji Heavy Ind Ltd CRANKCASE FOR A BOXER ENGINE
GB2342394A (en) * 1998-10-05 2000-04-12 Honda Motor Co Ltd I.c. engine with offset intake and exhaust valves operated directly by a single overhead camshaft

Also Published As

Publication number Publication date
ATE289653T1 (en) 2005-03-15
EP1207274B1 (en) 2005-02-23
DE60109010D1 (en) 2005-03-31
CA2360399A1 (en) 2002-05-16
EP1207274A2 (en) 2002-05-22
DE60109010T2 (en) 2005-07-14

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