GB1369597A - Valve gear - Google Patents

Valve gear

Info

Publication number
GB1369597A
GB1369597A GB4940270A GB4940270A GB1369597A GB 1369597 A GB1369597 A GB 1369597A GB 4940270 A GB4940270 A GB 4940270A GB 4940270 A GB4940270 A GB 4940270A GB 1369597 A GB1369597 A GB 1369597A
Authority
GB
United Kingdom
Prior art keywords
valve
cam
groove
rocker
receives
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
GB4940270A
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.)
Individual
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
Application filed by Individual filed Critical Individual
Priority to GB4940270A priority Critical patent/GB1369597A/en
Publication of GB1369597A publication Critical patent/GB1369597A/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
    • F01L1/30—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of positively opened and closed valves, i.e. desmodromic valves

Landscapes

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

Abstract

1369597 Valve gear A J SNELL and T G BAILEY 17 Jan 1972 [17 Oct 1970] 49402/70 Heading F1B Valve gear for twin cylinder I.C. engine comprising valve rockers each of which acts on a valve and has a cam follower engaging axially opposed cam surfaces provided by the sides of a peripheral groove in a rotary cam, the cam having one groove which receives two followers arranged 180 degrees out of phase for operating the inlet valves and a second groove which receives two followers arranged 180 degrees out of phase for operating the exhaust valves. Cam 21 rotates about an axis at right angles to the axes of the rocker shafts, and has a groove 22 which receives a cam follower integral with the rocker arm 16. The rocker arm for the other valve is driven by a second groove 23. For a twocylinder in-line engine, the shaft supporting the rocker 16 may also carry a further rocker, the follower of which is situated on the other side of the cam so that in relation to the rotation of the cam it is displaced by 180 degrees. Similarly, the cam groove 23 can drive two rockers. The valve-actuating end of the rocker has inturned parts 15 which engage in an annular groove in a cap 11 secured to the valve stem by collets 12. The valve is positively opened and positively closed. Valve clearance is adjusted by a screw 17, locked by a nut 18. A light spring 14 biases the valve to the closed position.
GB4940270A 1970-10-17 1970-10-17 Valve gear Expired GB1369597A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4940270A GB1369597A (en) 1970-10-17 1970-10-17 Valve gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4940270A GB1369597A (en) 1970-10-17 1970-10-17 Valve gear

Publications (1)

Publication Number Publication Date
GB1369597A true GB1369597A (en) 1974-10-09

Family

ID=10452226

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4940270A Expired GB1369597A (en) 1970-10-17 1970-10-17 Valve gear

Country Status (1)

Country Link
GB (1) GB1369597A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4708103A (en) * 1985-11-21 1987-11-24 Motomak Motorenbau, Maschinen- Und Werkzeugfabrik, Konstruktionen Gmbh Hydraulic valve clearance compensation device
EP0603929A1 (en) * 1992-12-22 1994-06-29 General Motors Corporation Method and apparatus for electrically driving engine valves
EP1580405A1 (en) * 2004-03-26 2005-09-28 Stefan Battlogg Desmodromic valve drive
WO2014030126A1 (en) * 2012-08-22 2014-02-27 Ajp Motos, S.A. Distribution system for 4-stroke engines, operation method and use thereof
CN106870051A (en) * 2017-05-03 2017-06-20 北京汽车动力总成有限公司 A kind of valve assembly and automobile

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4708103A (en) * 1985-11-21 1987-11-24 Motomak Motorenbau, Maschinen- Und Werkzeugfabrik, Konstruktionen Gmbh Hydraulic valve clearance compensation device
EP0603929A1 (en) * 1992-12-22 1994-06-29 General Motors Corporation Method and apparatus for electrically driving engine valves
US5494007A (en) * 1992-12-22 1996-02-27 General Motors Corporation Method and apparatus for electrically driving engine valves
US5598814A (en) * 1992-12-22 1997-02-04 General Motors Corporation Method and apparatus for electrically driving engine valves
EP1580405A1 (en) * 2004-03-26 2005-09-28 Stefan Battlogg Desmodromic valve drive
WO2014030126A1 (en) * 2012-08-22 2014-02-27 Ajp Motos, S.A. Distribution system for 4-stroke engines, operation method and use thereof
CN106870051A (en) * 2017-05-03 2017-06-20 北京汽车动力总成有限公司 A kind of valve assembly and automobile

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee