Valve assembly for internal combustion engine
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
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