CA2606776A1 - Engine - Google Patents

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Publication number
CA2606776A1
CA2606776A1 CA002606776A CA2606776A CA2606776A1 CA 2606776 A1 CA2606776 A1 CA 2606776A1 CA 002606776 A CA002606776 A CA 002606776A CA 2606776 A CA2606776 A CA 2606776A CA 2606776 A1 CA2606776 A1 CA 2606776A1
Authority
CA
Canada
Prior art keywords
camshaft
rotation member
crankshaft
cylinder head
end surface
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
CA002606776A
Other languages
French (fr)
Other versions
CA2606776C (en
Inventor
Shohei Kono
Manabu Hashimoto
Souhei Honda
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
Individual
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 JP2005183595A external-priority patent/JP2007002739A/en
Priority claimed from JP2005183607A external-priority patent/JP4319170B2/en
Application filed by Individual filed Critical Individual
Publication of CA2606776A1 publication Critical patent/CA2606776A1/en
Application granted granted Critical
Publication of CA2606776C publication Critical patent/CA2606776C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02F7/00—Casings, e.g. crankcases or frames
    • 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
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
    • 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
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/08—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio
    • F01L13/085—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio the valve-gear having an auxiliary cam protruding from the main cam profile
    • 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
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • 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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0046—Shape of casings adapted to facilitate fitting or dismantling of engine parts
    • 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
    • F01L2303/00—Manufacturing of components used in valve arrangements
    • F01L2303/02—Initial camshaft settings
    • 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
    • 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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/0073—Adaptations for fitting the engine, e.g. front-plates or bell-housings
    • F02F2007/0075—Front covers
    • 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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/0073—Adaptations for fitting the engine, e.g. front-plates or bell-housings
    • F02F2007/0078—Covers for belt transmissions

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

An engine where a crankshaft (12) and a camshaft (36) are connected by a timing transmission device (37) composed of a drive rotation member (45), a driven rotation member (46), and an endless transmission member (47), a working window (55) for attaching and detaching the driven rotation member (46) to and from the cam shaft (36) is opened in an outer end surface (5c) of a cylinder head (5), and a lid body (57) for closing the working window (55) is joined to the outer end surface. The outer end surface (5c), to which the lid body (57) is joined, of the cylinder head (5) is the inclined surface (5c) inclined such that that outer peripheral section of the driven rotation member (46) which is on the opposite side of the drive rotation member (45) is exposed from the working window (55). The construction improves workability in installation of the endless transmission member on the driven rotation member, installation of the driven rotation member on the camshaft, etc., and in addition, the construction contributes to downsizing of the engine.

Claims (8)

  1. [1] An engine comprising: a crankshaft (12) supported on a crankcase (2); a valve-operating camshaft (36) supported on a cylinder head (5); and a timing transmission system (37) which includes a drive rotation member (45) fixedly mounted to the crankshaft (12), a driven rotation member (46) fixedly mounted to the camshaft (36), and an endless power transmission member (47) wound around the two rotation members (45, 46), and which provides connection between the crankshaft (12) and the valve-operating camshaft (36); an access window (55) through which the driven rotation member (46) is attached to and detached from the camshaft 36 being opened in an outer end surface (5c) of the cylinder head (5) , and a lid body (57) for closing the access window (55) being jointed to the outer end surface (5c) of the cylinder head (5), characterized in that the outer end surface (5c) of the cylinder head (5) comprises a slanted surface (5c) which is inclined so that at least a part of an outer periphery of the driven rotation member (46) on a side opposite from the drive rotation member (45) is exposed from the access window (55).
  2. [2] The engine according to claim 1, wherein the slanted surface (5c) is formed so that a half-round portion or more of the driven rotation member (46) on the side opposite from the drive rotation member (45) is exposed from the access window (55).
  3. [3] The engine according to claim 1 or 2, wherein the cylinder head (5) is superposed, via a gasket (4), on a cylinder block (3) which is connected to the crankcase (2) and which includes a cylinder bore (3a) and a timing transmission chamber ( 48 ) that is present on one side of the cylinder bore (3a) and houses the timing transmission system (37); the cylinder head (5) is fastened to the cylinder block (4) by a plurality of main connecting bolts (6) arranged around the cylinder bore (3a); and the cylinder head (5) is fastened to the cylinder block (4) at a portion outward of one side of the timing transmission chamber (48) by an auxiliary connecting bolt (7) disposed below the access window ( 55 ) .
  4. [4] The engine according to claim 1 or 2, wherein a side wall of the lid body (57) is inclined along the slanted surface (5c) of the cylinder head (5).
  5. [5] The engine according to any of claims 1 to 4, further comprising: a first match mark (62a) indicated on an outer side surface of the driven rotation member (46); a second match mark (62b) indicated on an engine main body (1) so as to coincide with the first match mark (62a) when the crankshaft (12) is in a predetermined rotational position; a bolt hole (60) provided in an end wall of a hub (46a) of the driven rotation member (46) which is fitted into an end portion of the camshaft (36); a positioning groove (61) extending radially from the bolt hole (60);
    a positioning pin (67) projectingly provided on an end surface of the camshaft (36) in a position eccentric from a center of the end surface in a certain direction, and engaged with the positioning groove (61) when the camshaft (36) is in a predetermined phase relationship to the crankshaft (12) in the predetermined rotational position; a threaded hole (66) which is provided on the end surface of the camshaft (36) and corresponds to the bolt hole (60) when the camshaft (36) is in a predetermined phase relationship to the crankshaft (12) in the predetermined rotational position; and a mounting bolt (68) penetrating through the bolt hole (60) and screwed into the threaded hole (66) to fix the hub (46a) to the camshaft (36) .
  6. [6] The engine according to claim 5, wherein when the camshaft (36) is in the predetermined phase relationship to the crankshaft (12) in the predetermined rotational position, the first and second match marks (62a, 62b), the positioning groove (61) and the positioning pin (67) are arranged on a straight line (L) passing through centers of the crankshaft (12) and the camshaft (36).
  7. [7] The engine according to claim 6, wherein the bolt hole (60) and the threaded hole (66) are arranged in positions eccentric from centers of the hub (46a) and the camshaft (36), respectively.
  8. [8] The engine according to claim 7, wherein the threaded hole (66) and the positioning pin (67) are arranged in positions which are eccentric from the center of the camshaft (36) in directions opposite from each other.
CA2606776A 2005-06-23 2006-06-23 Engine Expired - Fee Related CA2606776C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2005183595A JP2007002739A (en) 2005-06-23 2005-06-23 Engine
JP2005-183595 2005-06-23
JP2005-183607 2005-06-23
JP2005183607A JP4319170B2 (en) 2005-06-23 2005-06-23 Engine valve gear
PCT/JP2006/312608 WO2006137519A1 (en) 2005-06-23 2006-06-23 Engine

Publications (2)

Publication Number Publication Date
CA2606776A1 true CA2606776A1 (en) 2006-12-28
CA2606776C CA2606776C (en) 2010-07-27

Family

ID=37570536

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2606776A Expired - Fee Related CA2606776C (en) 2005-06-23 2006-06-23 Engine

Country Status (13)

Country Link
EP (1) EP1895135B1 (en)
KR (1) KR100947005B1 (en)
AR (1) AR054794A1 (en)
AU (1) AU2006260106B2 (en)
BR (1) BRPI0613155A2 (en)
CA (1) CA2606776C (en)
DE (1) DE602006011315D1 (en)
ES (1) ES2337182T3 (en)
MY (1) MY142921A (en)
PA (1) PA8682301A1 (en)
PE (1) PE20070129A1 (en)
TW (1) TWI318660B (en)
WO (1) WO2006137519A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008202479A (en) * 2007-02-19 2008-09-04 Yamaha Motor Co Ltd Saddle ride type vehicle
TWI422740B (en) * 2011-09-08 2014-01-11 Kwang Yang Motor Co Crankcase with balance shaft
TWI595154B (en) * 2013-10-09 2017-08-11 Kwang Yang Motor Co Engine cylinder head structure

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400956A (en) * 1965-12-10 1968-09-10 Gen Motors Corp Universally indexing lock means
JPH0361220U (en) * 1989-10-17 1991-06-17
JPH0514567A (en) * 1991-07-08 1993-01-22 Fuji Xerox Co Ltd Facsimile equipment
JP2519127Y2 (en) * 1991-08-02 1996-12-04 ダイハツ工業株式会社 Camshaft timing adjusting device for internal combustion engine
JP3014893B2 (en) * 1993-05-19 2000-02-28 株式会社デンソー Valve timing adjustment device
JP3780824B2 (en) * 2000-06-09 2006-05-31 スズキ株式会社 Cylinder head structure of a 4-cycle engine for motorcycles
WO2003078801A1 (en) * 2002-02-20 2003-09-25 Yamaha Hatsudoki Kabushiki Kaisha Engine valve moving device

Also Published As

Publication number Publication date
EP1895135A4 (en) 2008-08-27
AR054794A1 (en) 2007-07-18
CA2606776C (en) 2010-07-27
WO2006137519A1 (en) 2006-12-28
KR100947005B1 (en) 2010-03-11
DE602006011315D1 (en) 2010-02-04
ES2337182T3 (en) 2010-04-21
MY142921A (en) 2011-01-31
AU2006260106A1 (en) 2006-12-28
TWI318660B (en) 2009-12-21
PE20070129A1 (en) 2007-02-09
KR20080007377A (en) 2008-01-18
EP1895135B1 (en) 2009-12-23
TW200704873A (en) 2007-02-01
AU2006260106B2 (en) 2010-02-04
BRPI0613155A2 (en) 2010-12-21
EP1895135A1 (en) 2008-03-05
PA8682301A1 (en) 2007-01-17

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Effective date: 20170623