Rotary valve construction utilizing a compressed gas as lubricant and coolant
This patent describes an improvement in an internal combustion engine of the type having a housing with at least one cylinder formed in the housing, at least one piston member reciprocally received in the cylinder, passage means formed in the housing for communicating a combustible mixture to the cylinder and for expelling exhaust gases from the cylinder, and at least one cylindrical rotary valve member rotatably housed substantially in a bore journalled in the housing. It comprises: gas means for lubricating the rotary valve means and the gas means for lubricating including the bore and the rotary valve having a first toleranced diameter and a second toleranced diameter of a predetermined amount whereby a gas may circulate therebetween.
- Assignee:
- NOV; NOV-90-043108; EDB-91-002914
- Patent Number(s):
- A; US 4960086
- Application Number:
- PPN: US s 7-335730
- OSTI ID:
- 6451879
- Country of Publication:
- United States
- Language:
- English
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