Patent ID: 9546669
Date: 2017-01-17
CPC Classifications: F04D,Y10T

Claim:
1. A compressor housing for an air cycle machine, comprising: a body comprising a compressor volute configured to provide centrifugal compression in the air cycle machine; and a mating surface integrally formed with the body, the mating surface comprising a plurality of bosses equally distributed with a same angular spacing relative to an axis of rotation in the air cycle machine, the bosses comprising a first boss type at a first radial distance from the axis of rotation in the air cycle machine and configured to receive a threaded fastener coupled to a turbine nozzle of the air cycle machine, and a second boss type at a second radial distance from the axis of rotation in the air cycle machine and configured to secure a seal plate of the air cycle machine, wherein the second radial distance is less than the first radial distance, and a ratio of a number of the bosses of the first boss type to the second boss type is 17 to 2, wherein each of the bosses of the second boss type is angularly offset from each of the bosses of the first type relative to the axis of rotation in the air cycle machine, and each of the bosses of the second boss type is angularly closer to two bosses of the first boss type than any other of the plurality of bosses relative to the axis of rotation in the air cycle machine.