EP 0957238 A1 19991117 - Valve spring in an internal combustion engine
Title (en)
Valve spring in an internal combustion engine
Title (de)
Ventilfeder in einer Brennkraftmaschine
Title (fr)
Ressort de soupape dans un moteur à combustion interne
Publication
Application
Priority
EP 98303772 A 19980513
Abstract (en)
A valve spring (1) is used in a valve operating mechanism for moving a poppet valve (6) up and down in an internal combustion engine of an automobile. The terminal end of the uppermost portion (9) of the valve spring (1) extends in a tangential direction to go away from an axis of the valve spring (1), thereby avoiding contact with a retainer (2) to prevent wear. <IMAGE>
IPC 1-7
IPC 8 full level
F01L 1/46 (2006.01)
CPC (source: EP)
F01L 1/462 (2013.01)
Citation (search report)
- [A] DE 1174576 B 19640723 - FORD WERKE AG
- [A] US 4017062 A 19770412 - ZWIRNER ECKHARD
- [A] PATENT ABSTRACTS OF JAPAN vol. 006, no. 071 (M - 126) 6 May 1982 (1982-05-06)
- [A] PATENT ABSTRACTS OF JAPAN vol. 096, no. 005 31 May 1996 (1996-05-31)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0957238 A1 19991117; EP 0957238 B1 20010411; DE 69800693 D1 20010517; DE 69800693 T2 20011011
DOCDB simple family (application)
EP 98303772 A 19980513; DE 69800693 T 19980513