Patent ID: 7753646
Filing Date: 2010-07-13
Classification: F01D,F04D,F05D,F16C,H02K

Abstract:
1. A housing for containing a compressed gas and a bearing having an outer race and an inner race, wherein the inner race is movable with respect to the outer race, and for expanding the compressed gas to a predetermined pressure and allowing the gas to directly contact the outer race of the bearing as it expands, comprising: a restriction region having a cross-sectional area; a channel fluidicly coupled to the restriction region, the channel extending around the outer race and constructed to allow the expanding gas to directly contact the outer race; and at least one exhaust port fluidicly coupled to the channel, each exhaust port having a predetermined cross-sectional area, wherein a sum total of the cross-sectional area of the at least one exhaust port is sized with respect to the cross-sectional area of the restriction region to expand the compressed gas to the predetermined pressure within the channel.