JPS57140954A - Tensioning device of transmission band for driving valve activating cam shaft in internal combustion engine - Google Patents

Tensioning device of transmission band for driving valve activating cam shaft in internal combustion engine

Info

Publication number
JPS57140954A
JPS57140954A JP2464881A JP2464881A JPS57140954A JP S57140954 A JPS57140954 A JP S57140954A JP 2464881 A JP2464881 A JP 2464881A JP 2464881 A JP2464881 A JP 2464881A JP S57140954 A JPS57140954 A JP S57140954A
Authority
JP
Japan
Prior art keywords
internal combustion
combustion engine
transmission band
cam shaft
tensioning device
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
JP2464881A
Other languages
Japanese (ja)
Other versions
JPS626140B2 (en
Inventor
Masaharu Tsuboi
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
Priority to JP2464881A priority Critical patent/JPS57140954A/en
Priority to FR8202580A priority patent/FR2500559B1/en
Priority to US06/350,068 priority patent/US4480603A/en
Priority to CA000396654A priority patent/CA1179167A/en
Priority to DE19823206020 priority patent/DE3206020A1/en
Publication of JPS57140954A publication Critical patent/JPS57140954A/en
Publication of JPS626140B2 publication Critical patent/JPS626140B2/ja
Granted 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
    • F01L1/022—Chain drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • 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
    • F01L2001/0537—Double overhead camshafts [DOHC]
    • 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
    • F02B2275/08—Endless member is a chain
    • 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
    • F02B2275/18—DOHC [Double overhead camshaft]
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

PURPOSE:To provide a compact internal combustion engine by disposing an automatic tension adjusting device in a space formed between a crankshaft and cam driving shaft inside a transmission band. CONSTITUTION:Inside an endless transmission chain 15, between a crankshaft 1 and a pair of cam driving shafts 5, 6 is provided an automatic tension adjusting mechanism A which urges elastically a tensioner body 16 toward the transmission chain 15 to give a predetermined tension to said chain 15. As a result, since said mechanism A is received in a dead space formed inside the endless transmission chain 15, any projections on the outer periphery of an engine body can be dispensed with and a compact engine can be provided.
JP2464881A 1981-02-20 1981-02-20 Tensioning device of transmission band for driving valve activating cam shaft in internal combustion engine Granted JPS57140954A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2464881A JPS57140954A (en) 1981-02-20 1981-02-20 Tensioning device of transmission band for driving valve activating cam shaft in internal combustion engine
FR8202580A FR2500559B1 (en) 1981-02-20 1982-02-17 DEVICE FOR TENSIONING A TIMING CHAIN OF AN INTERNAL COMBUSTION ENGINE
US06/350,068 US4480603A (en) 1981-02-20 1982-02-18 Chain tightening mechanism for DOHC engine
CA000396654A CA1179167A (en) 1981-02-20 1982-02-19 Tensioning mechanism for transmission belt for driving valve actuating cam shaft of internal combustion engine
DE19823206020 DE3206020A1 (en) 1981-02-20 1982-02-19 COMBUSTION ENGINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2464881A JPS57140954A (en) 1981-02-20 1981-02-20 Tensioning device of transmission band for driving valve activating cam shaft in internal combustion engine

Publications (2)

Publication Number Publication Date
JPS57140954A true JPS57140954A (en) 1982-08-31
JPS626140B2 JPS626140B2 (en) 1987-02-09

Family

ID=12143954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2464881A Granted JPS57140954A (en) 1981-02-20 1981-02-20 Tensioning device of transmission band for driving valve activating cam shaft in internal combustion engine

Country Status (1)

Country Link
JP (1) JPS57140954A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5482282U (en) * 1977-11-22 1979-06-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5482282U (en) * 1977-11-22 1979-06-11

Also Published As

Publication number Publication date
JPS626140B2 (en) 1987-02-09

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