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GB421359A - Improvements in or relating to means for driving overhead cam shafts of internal combustion engines - Google Patents

Improvements in or relating to means for driving overhead cam shafts of internal combustion engines

Info

Publication number
GB421359A
GB421359A GB2565033A GB2565033A GB421359A GB 421359 A GB421359 A GB 421359A GB 2565033 A GB2565033 A GB 2565033A GB 2565033 A GB2565033 A GB 2565033A GB 421359 A GB421359 A GB 421359A
Authority
GB
United Kingdom
Prior art keywords
sprocket
cam shafts
chains
overhead cam
driven
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.)
Expired
Application number
GB2565033A
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.)
IRVIN ASHCROFT
Original Assignee
IRVIN ASHCROFT
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 IRVIN ASHCROFT filed Critical IRVIN ASHCROFT
Priority to GB2565033A priority Critical patent/GB421359A/en
Publication of GB421359A publication Critical patent/GB421359A/en
Expired 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
    • 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
    • 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
    • F01L1/026—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
    • 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]

Landscapes

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

Abstract

421,359. Valve gear. ASHCROFT, I., 35, Avenue Road, Staines, Middlesex. Sept. 15, 1933, No. 25650. [Class 7 (vi)] In an engine having two or more overhead cam shafts, driven by chains, these are connected to a double sprocket which is mounted on the cylinder head and secured to the sprocket of an intermediate chain by means ensuring the correct timing, so that the intermediate sprocket may be detached and the cylinder head removed with the driving chains and sprockets of the cam shafts intact without disturbing the timing. Two overhead cam shafts 2 are driven by chains 6 passing over a double sprocket 7 mounted on a spindle 8 on the cylinder head. An intermediate chain 9 driven from a half-speed sprocket 14 passes over a sprocket 15, which is also mounted on the spindle 8 and is secured to the double sprocket 7 by three bolts 16, the correct timing position being ensured by a dowel pin, or by placing the three volts in unequally spaced relationship. When the intermediate sprocket 15 is detached, it is placed on a support 22 just below, so that the chain 9 remains engaged. The chains are fitted with spring tensioning- devices.
GB2565033A 1933-09-15 1933-09-15 Improvements in or relating to means for driving overhead cam shafts of internal combustion engines Expired GB421359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2565033A GB421359A (en) 1933-09-15 1933-09-15 Improvements in or relating to means for driving overhead cam shafts of internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2565033A GB421359A (en) 1933-09-15 1933-09-15 Improvements in or relating to means for driving overhead cam shafts of internal combustion engines

Publications (1)

Publication Number Publication Date
GB421359A true GB421359A (en) 1934-12-19

Family

ID=10231113

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2565033A Expired GB421359A (en) 1933-09-15 1933-09-15 Improvements in or relating to means for driving overhead cam shafts of internal combustion engines

Country Status (1)

Country Link
GB (1) GB421359A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629931A (en) * 1948-07-15 1953-03-03 United Merchants & Mfg Means for reproduction of designs
DE3338005A1 (en) * 1982-10-20 1984-04-26 Honda Giken Kogyo K.K., Tokyo Engine with twin overhead camshafts
DE3824971A1 (en) * 1987-07-31 1989-02-09 Fuji Heavy Ind Ltd DRIVE SYSTEM FOR DRIVING VALVES AND AN AUXILIARY UNIT
EP0357511A1 (en) * 1988-09-01 1990-03-07 Nissan Motor Co., Ltd. Double overhead camshaft engine
DE4011424A1 (en) * 1989-04-10 1990-10-11 Nissan Motor COMBUSTION ENGINE WITH OVERHEAD CAMSHAFT
EP0406697A1 (en) * 1989-07-06 1991-01-09 Yamaha Hatsudoki Kabushiki Kaisha Automotive internal-combustion engine with camshaft drive system
EP0372587B1 (en) * 1988-12-09 1994-08-24 Yamaha Motor Co., Ltd. Internal combustion engine
EP0622527A1 (en) * 1993-02-16 1994-11-02 Oy Wärtsilä Diesel International Ltd. An adjustable force transmission arrangement for a camshaft of a large diesel engine
EP0551592B1 (en) * 1992-01-11 1996-10-02 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Camshaft drive for multi-cylinder internal combustion engine
DE102004010801A1 (en) * 2004-03-05 2005-09-22 Fev Motorentechnik Gmbh IC motor, with fuel injection, has a standard chain drive and intermediate drive from the crankshaft for use with a variety of fuel injection and oil pumps for different models within a series

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629931A (en) * 1948-07-15 1953-03-03 United Merchants & Mfg Means for reproduction of designs
DE3338005A1 (en) * 1982-10-20 1984-04-26 Honda Giken Kogyo K.K., Tokyo Engine with twin overhead camshafts
GB2128679A (en) * 1982-10-20 1984-05-02 Honda Motor Co Ltd Double overhead camshaft engines
DE3824971A1 (en) * 1987-07-31 1989-02-09 Fuji Heavy Ind Ltd DRIVE SYSTEM FOR DRIVING VALVES AND AN AUXILIARY UNIT
US4841789A (en) * 1987-07-31 1989-06-27 Fuji Jikogyo Kabushiki Kaisha Drive system for driving valves and an auxiliary machine of an automotive engine
EP0357511A1 (en) * 1988-09-01 1990-03-07 Nissan Motor Co., Ltd. Double overhead camshaft engine
EP0372587B1 (en) * 1988-12-09 1994-08-24 Yamaha Motor Co., Ltd. Internal combustion engine
DE4011424A1 (en) * 1989-04-10 1990-10-11 Nissan Motor COMBUSTION ENGINE WITH OVERHEAD CAMSHAFT
US4970999A (en) * 1989-04-10 1990-11-20 Nissan Motor Co., Ltd. Cylinder head for overhead camshaft engine
GB2230560B (en) * 1989-04-10 1993-06-02 Nissan Motor Mounting idler in engine cylinder head.
GB2230560A (en) * 1989-04-10 1990-10-24 Nissan Motor Engine cylinder head idler mounting housing
EP0406697A1 (en) * 1989-07-06 1991-01-09 Yamaha Hatsudoki Kabushiki Kaisha Automotive internal-combustion engine with camshaft drive system
EP0551592B1 (en) * 1992-01-11 1996-10-02 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Camshaft drive for multi-cylinder internal combustion engine
EP0622527A1 (en) * 1993-02-16 1994-11-02 Oy Wärtsilä Diesel International Ltd. An adjustable force transmission arrangement for a camshaft of a large diesel engine
DE102004010801A1 (en) * 2004-03-05 2005-09-22 Fev Motorentechnik Gmbh IC motor, with fuel injection, has a standard chain drive and intermediate drive from the crankshaft for use with a variety of fuel injection and oil pumps for different models within a series

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