Rotary engine cooling
AssigneeCaterpillar Tractor Co.
InventorAlexander Goloff
Life of this patent
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Abstract
An improved rotary engine including a housing having interior walls defining an operating chamber with a rotor mounted for movement therein. Within the chamber is a thin layer of wear resistant metal which is located to be sealingly engaged by the rotor as the rotor moves within the chamber and a backing is secured to the thin layer in good heat transfer relation and interposed between the same and the housing for transmitting pressure applied to the thin layer to the housing. The backing is formed of a metal having high thermal conductivity and is provided with a plurality of relatively closely spaced coolant passages to provide an improved cooling structure for the engine to thereby extend its life.
Claims9
A rotary engine comprising:
- a. a housing having interior walls defining an operating chamber;
- b. a rotor mounted for movement in said chamber;
- c. a thin layer of wear resistant metal within said chamber and located to be sealingly engaged by said rotor as said rotor moves within said chamber;
- and
- d. a backing for said thin layer interposed in sandwiched relation between said thin layer and said housing for transmitting pressure applied to said thin layer to said housing, said backing being formed of a metal having high thermal conductivity and being provided with a plurality of relatively closely spaced, elongated, coolant passages, said backing including a plurality of protrusions extending into said passages to introduce turbulence in a coolant passing through said passages, said passages having a substantially uniform cross sectional area along their length.
Dependencies are inferred from the claim text.