GB242919A - Improvements in or relating to valve operating mechanism for internal combustion engines - Google Patents

Improvements in or relating to valve operating mechanism for internal combustion engines

Info

Publication number
GB242919A
GB242919A GB1775825A GB1775825A GB242919A GB 242919 A GB242919 A GB 242919A GB 1775825 A GB1775825 A GB 1775825A GB 1775825 A GB1775825 A GB 1775825A GB 242919 A GB242919 A GB 242919A
Authority
GB
United Kingdom
Prior art keywords
valves
rockers
cams
actuated
relating
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
GB1775825A
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.)
Napier Turbochargers Ltd
Original Assignee
D Napier and Son 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 D Napier and Son Ltd filed Critical D Napier and Son Ltd
Priority to GB1775825A priority Critical patent/GB242919A/en
Publication of GB242919A publication Critical patent/GB242919A/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
    • F01L1/26—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
    • F01L1/265—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 peculiar to machines or engines with three or more intake 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
    • 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

242,919. Napier & Son, Ltd., D., and Wilkinson, G. S. July 10, 1925. Valve gear.-Valves having their axes inclined to the cam shaft are actuated by cams and rockers constructed so that the operative faces of the cams and the pivots of the rockers are parallel to a line at right angles to the axis of the valve which they actuate. Fig. 1 shows four inclined valves B actuated by separate cams D and rockers C<1>, C<2> arranged in this manner. The valves B may be two inlet and two exhaust, and in addition there may be provided two valves B<1> or B<2>, one for inlet and one for exhaust, or both B<1> and B<2> may be used. The valves B<1> are actuated directly by cams D' having operative faces at right angles to the axes of the valve tappets, or their equivalent with which they engage. The valves B<2> are actuated by plain cams D<2> and rockers D mounted on pivots parallel to the cam shaft. Each pair of rockers may be actuated by a single cam, the end of one rocker engaging that of the other rocker, which contacts with the cam.
GB1775825A 1925-07-10 1925-07-10 Improvements in or relating to valve operating mechanism for internal combustion engines Expired GB242919A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1775825A GB242919A (en) 1925-07-10 1925-07-10 Improvements in or relating to valve operating mechanism for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1775825A GB242919A (en) 1925-07-10 1925-07-10 Improvements in or relating to valve operating mechanism for internal combustion engines

Publications (1)

Publication Number Publication Date
GB242919A true GB242919A (en) 1925-11-19

Family

ID=10100701

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1775825A Expired GB242919A (en) 1925-07-10 1925-07-10 Improvements in or relating to valve operating mechanism for internal combustion engines

Country Status (1)

Country Link
GB (1) GB242919A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466611A2 (en) * 1979-09-28 1981-04-10 Honda Motor Co Ltd IC engine with oval cylinders - has multiple inlet and exhaust valves arranged in rows parallel to major axis of cylinder
EP0063385A2 (en) * 1981-04-22 1982-10-27 Yamaha Motor Co., Ltd. Four-cycle internal combustion engine
US4549510A (en) * 1983-11-25 1985-10-29 Honda Giken Kogyo Kabushiki Kaisha Arrangement of multiple valves for an internal combustion engine
EP0155261A3 (en) * 1984-03-14 1987-01-07 Hermann Weichsler Valve timing gear for an internal-combustion engine
US4660529A (en) * 1981-04-22 1987-04-28 Yamaha Hatsudoki Kabushiki Kaisha Four-cycle engine
GB2213196A (en) * 1987-12-08 1989-08-09 Aston Martin Tickford Multi-i.c.engine cylinder head
US4858573A (en) * 1984-11-13 1989-08-22 Bothwell Peter W Internal combustion engines
EP0344599A1 (en) * 1988-06-01 1989-12-06 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Reciprocating piston internal-combustion engine with an overhead camshaft in a multivalve cylinder head
EP0479773A2 (en) * 1989-02-14 1992-04-08 Yamaha Hatsudoki Kabushiki Kaisha Valve train arrangement for multiple valve engine
AT400971B (en) * 1985-10-17 1996-05-28 Bombardier Rotax Gmbh Valve control for a cylinder of an internal combustion engine

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466611A2 (en) * 1979-09-28 1981-04-10 Honda Motor Co Ltd IC engine with oval cylinders - has multiple inlet and exhaust valves arranged in rows parallel to major axis of cylinder
EP0063385A2 (en) * 1981-04-22 1982-10-27 Yamaha Motor Co., Ltd. Four-cycle internal combustion engine
EP0063385A3 (en) * 1981-04-22 1983-04-13 Yamaha Motor Co., Ltd. Four-cycle internal combustion engine
US4660529A (en) * 1981-04-22 1987-04-28 Yamaha Hatsudoki Kabushiki Kaisha Four-cycle engine
USRE33787E (en) * 1981-04-22 1992-01-07 Yamaha Hatsudoki Kabushiki Kaisha Four-cycle engine
US4549510A (en) * 1983-11-25 1985-10-29 Honda Giken Kogyo Kabushiki Kaisha Arrangement of multiple valves for an internal combustion engine
EP0155261A3 (en) * 1984-03-14 1987-01-07 Hermann Weichsler Valve timing gear for an internal-combustion engine
US4858573A (en) * 1984-11-13 1989-08-22 Bothwell Peter W Internal combustion engines
AT400971B (en) * 1985-10-17 1996-05-28 Bombardier Rotax Gmbh Valve control for a cylinder of an internal combustion engine
GB2213196A (en) * 1987-12-08 1989-08-09 Aston Martin Tickford Multi-i.c.engine cylinder head
GB2213196B (en) * 1987-12-08 1991-10-02 Aston Martin Tickford Multivalve cylinder head
EP0344599A1 (en) * 1988-06-01 1989-12-06 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Reciprocating piston internal-combustion engine with an overhead camshaft in a multivalve cylinder head
EP0483109A2 (en) * 1989-02-14 1992-04-29 Yamaha Hatsudoki Kabushiki Kaisha Camshaft arrangement for multiple valve engine
EP0483109A3 (en) * 1989-02-14 1992-07-01 Yamaha Hatsudoki Kabushiki Kaisha Camshaft arrangement for multiple valve engine
EP0479773A3 (en) * 1989-02-14 1992-07-01 Yamaha Hatsudoki Kabushiki Kaisha Valve train arrangement for multiple valve engine
EP0479773A2 (en) * 1989-02-14 1992-04-08 Yamaha Hatsudoki Kabushiki Kaisha Valve train arrangement for multiple valve engine

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