Valve spring in an internal combustion engine

Details Valve spring in an internal combustion engine Valve spring in an internal combustion engine

1998-05-13

1999-03-23

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

Spring

12318812, 12318817, 251337, F01L 310

Patent

active

058845968

ABSTRACT:
A valve spring is used in a valve operating mechanism for moving a poppet valve up and down in an internal combustion engine of an automobile. The terminal end of the uppermost portion of the valve spring extends in a tangential direction to go away from an axis of the valve spring, thereby avoiding contact with a retainer to prevent wear.

REFERENCES:
patent: 4470383 (1984-09-01), DeBolt
patent: 4993376 (1991-02-01), Fukutome et al.
patent: 5381765 (1995-01-01), Rhodes
patent: 5445115 (1995-08-01), Murata et al.

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