Sundstrand Corporation

Dale A Schultz

Oleif Olsaker

James T Ferentinos

A rotary screw compressor system is provided wherein the base plate connecting the prime mover to the compressor integrates the drive transmission with the lubricating fluid flow path between lubricating circuit components. Each of those circuit components and the compressor is removably mounted to the base plate via segregating housings. The compressor is mounted to the base plate with drive shaft and working fluid outlet on the same side. A pre-separation chamber is included within the base plate to facilitate removal of lubricant from the compressed working fluid prior to passage of the working fluid through the separator component. A double seal arrangement is provided about the connection of the prime mover drive shaft to the base plate. That seal arrangement includes a lubricant collection chamber between the seals, and control air is used to recycle lubricant from that chamber to the air inlet of the compressor. Preferably, the base plate is formed from two mating cast members with the lubricant flow path integrally formed therein and defined through structural webs of the castings.

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Michigan City, IN, United States of America

Dale A Schultz