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US 2014/0373802 A1Published application
Sleeve valve oil seal
AssigneePinnacle Engines, Inc.
InventorJames M. Cleeves
Life of this patent
Estimating the term…
Abstract
Leakage of a liquid (e.g. a coolant and/or a lubricant) past a sleeve valve to a port in communication with a combustion chamber of an internal combustion engine can be prevented by use of a substantially ring-shaped seal, which can be carried on the sleeve valve or disposed on a stationary part of the internal combustion engine.
Claims22
A sleeve valve assembly comprising:
- a sleeve valve having a valve body configured to at least partially encircle one or more pistons that moves in a reciprocating manner on operation of an internal combustion engine, the sleeve valve and the one or more pistons at least partially defining a combustion chamber of the internal combustion engine, the sleeve valve being configured to move between open and closed positions to control fluid flow through a port that opens to the combustion chamber;
- and
- a substantially ring-shaped seal configured to resist leakage of a liquid comprising coolant and/or lubricant past the valve body to the port, the substantially ring-shaped seal comprising at least one of:
- a) a ring carried in a groove recessed into the valve body, and
- b) first and second rings disposed around the valve body and biased apart from each other, the first and second rings being disposed on a stationary part of the internal combustion engine such that the valve body moves relative to the first and second rings.
2 more elements
A method comprising:
- moving a sleeve valve between open and closed positions to control fluid flow through a port of an internal combustion;
- and
- resisting leakage of a liquid comprising coolant and/or lubricant past a valve body of the sleeve valve to the port, the resisting being performed at least in part by a substantially ring-shaped seal comprising at least one of:
- a) a ring carried in a groove recessed into the valve body, and
- b) first and second rings disposed around the valve body and biased apart from each other, the first and second rings being disposed on a stationary part of the internal combustion engine such that the valve body moves relative to the first and second rings.
2 more elements
Dependencies are inferred from the claim text.