US 4,047,855 AGranted

Rotary mechanism with improved cooling

AssigneeCaterpillar Tractor Co.

InventorsAlexander Goloff, Noble G. Barker, Paul J. Staebler

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Abstract

An improved slant axis rotary mechanism of the type including a housing defining a chamber having a radially outer spherical wall and a radially inner spherical wall interconnected by opposed, generally radially extending side walls. A shaft is journalled within the housing and has an angularly offset portion within the chamber. A rotor is within the chamber and journalled on the angularly offset portion. The mechanism is provided with an improved cooling system including a plurality of coolant receiving conduits in the walls in close proximity to the chamber. A thin, wear resistant layer is disposed on the walls within the chamber and interiorly of the conduits. The conduits are located closely adjacent the intersections of the side walls and the spherical walls to provide excellent cooling.

Claims1

Dependent claims

In a slant axis rotary mechanism including a housing defining a chamber having a radially outer spherical wall and a radially inner spherical wall interconnected by opposed, generally radially extending side walls, a shaft journalled within said housing and having an angularly offset portion within said chamber, and a rotor within said chamber and journalled on said angularly offset portion, an improved cooling system including a plurality of coolant receiving grooves in said walls, and a thin cover plate for said walls and thus said grooves and being supported against collapse by the wall portions between said grooves;

said side walls being formed by side wall members separate from said outer spherical wall, gas seal means sealing the interfaces of said side wall members and said outer spherical wall, there being at least one said groove between said gas seal means and said chamber along said interface.

Dependencies are inferred from the claim text.