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Title: Valve assembly for internal combustion engine

Patent ·
OSTI ID:5062244

This patent describes an improvement in a valve assembly for an internal combustion engine of the type including a valve having a valve stem, a valve guideway for mounting this valve for reciprocal strokes between opened and seated position, and spring means for biasing the valve into the seated position. The improvement comprising a valve spool of greater cross-sectional diameter as compared to the valve stem, and a valve spool guideway within which the valve spool is movable during the strokes of the valve, an upper surface of the valve spool and a portion of the spool guideway collectively establishing a damper chamber which varies in volume during the valve strokes. a feed passage for introducing oil into the damper chamber, and a bleed passage for discharging oil from the damper chamber. The bleed passages each laterally opening into the valve spool guideway.

Assignee:
Allied-Signal Inc., Morris Township, NJ
Patent Number(s):
US 4862844
Application Number:
PPN: US 7-233082A
OSTI ID:
5062244
Resource Relation:
Patent File Date: 17 Aug 1988
Country of Publication:
United States
Language:
English