A bearing support (26) for a compressor (10) includes an annular body. The annular body includes a circle opening (28) that is configured to receive a bearing (21) and a shaft (20). A tapered portion (30) is tapered away from the circular opening. The tapered portion (30) includes a passage (32). A vibration sensor (34) is situated in the passage. A compressor and a method of sensing vibration adjacent a bearing in a compressor are also disclosed.

A blower motor is provided and includes a support assembly provided with a first stop step surface, a stator assembly disposed in the support assembly, a rotor assembly disposed in the stator assembly and an end cover disposed on the stator assembly and abutted against the support assembly and provided with a second stop step surface. The rotor assembly includes a rotating shaft and two ends of the rotating shaft are respectively provided with a first bearing and a second bearing. A resilient gasket is provided on one of the first stop step surface and the second stop step surface. The bearings are positioned by springs and cooperate with the resilient gasket to apply a tightening force to the bearings, which can reduce clearances in the bearings and effectively prevent balls in the bearings from making noise under a high-frequency vibration.

This disclosure describes various implementations of a downhole-blower system that can be used to boost production in a wellbore. The downhole-blower system includes a blower and an electric machine coupled to the blower that can be deployed in a wellbore, and that can, in cooperation, increase production through the wellbore.

This disclosure describes various implementations of a downhole-blower system that can be used to boost production in a wellbore. The downhole-blower system includes a blower and an electric machine coupled to the blower that can be deployed in a wellbore, and that can, in cooperation, increase production through the wellbore.

A motor assembly includes a rolling bearing installed on a rotation shaft between an impeller and a rotor to support a first support of the rotation shaft, and a motor housing having a stator. The motor housing has a gas bearing bracket for accommodating a second support of the rotation shaft disposed at a side opposite to the first support with respect to the rotor. The motor assembly includes a gas bearing assembly in the gas bearing bracket to support rotation of the second support of the rotation shaft. The gas bearing assembly includes a gas bearing for surrounding the second support. The gas bearing is spaced apart from the second support of the rotation shaft to define a gap therebetween when the rotation shaft rotates. The gas bearing assembly includes an elastic member interposed between the gas bearing bracket and the gas bearing to elastically support the gas bearing.

A motor assembly includes a rolling bearing installed on a rotation shaft between an impeller and a rotor to support a first support of the rotation shaft, and a motor housing having a stator. The motor housing has a gas bearing bracket for accommodating a second support of the rotation shaft disposed at a side opposite to the first support with respect to the rotor. The motor assembly includes a gas bearing assembly in the gas bearing bracket to support rotation of the second support of the rotation shaft. The gas bearing assembly includes a gas bearing for surrounding the second support. The gas bearing is spaced apart from the second support of the rotation shaft to define a gap therebetween when the rotation shaft rotates. The gas bearing assembly includes an elastic member interposed between the gas bearing bracket and the gas bearing to elastically support the gas bearing.

A compressor device includes a housing and a rotating group with a shaft and a compressor wheel supported on the shaft. The compressor wheel includes a back face. The compressor device further includes a bearing that supports the rotating group within the housing for rotation about an axis. Also, the compressor device includes a spacer that is disposed longitudinally along the axis between the back face of the compressor wheel and the bearing. The spacer is received within a wall of the housing. Moreover, the compressor device includes a moisture removal system configured to receive and remove moisture included within a fluid flow from the back face of the compressor wheel to an area between the spacer and the wall of the housing. The moisture removal system includes a channel cooperatively defined by the spacer and the wall of the housing. The channel extends about the axis.

A compressor device includes a housing and a rotating group with a shaft and a compressor wheel supported on the shaft. The compressor wheel includes a back face. The compressor device further includes a bearing that supports the rotating group within the housing for rotation about an axis. Also, the compressor device includes a spacer that is disposed longitudinally along the axis between the back face of the compressor wheel and the bearing. The spacer is received within a wall of the housing. Moreover, the compressor device includes a moisture removal system configured to receive and remove moisture included within a fluid flow from the back face of the compressor wheel to an area between the spacer and the wall of the housing. The moisture removal system includes a channel cooperatively defined by the spacer and the wall of the housing. The channel extends about the axis.

An assembly for supporting and guiding a drive shaft for an aircraft turbine engine includes a bearing support having a cylindrical housing for receiving an outer ring of a bearing, and a device for rotationally retaining a first portion of the outer ring which is detached from its attachment to the bearing support. When the detachment occurs, the free outer peripheries of the first teeth of the first portion cooperate by wedge effect in the tangential direction with complementary inner surfaces of the housing of the bearing support and/or the free inner peripheries of the second teeth inside the housing cooperate by wedge effect in the tangential direction with complementary outer surfaces of the outer ring.

A centrifugal pump includes a motor portion including a rotor rotatably disposed in a rotor chamber and includes a pump portion including an impeller rotatably disposed in a pump chamber. The impeller is coupled to the rotor. The centrifugal pump also includes a casing that separates the rotor chamber from the pump chamber, and a bearing that rotatably supports a rotor shaft of the rotor and to which grease is supplied is provided. Two communication holes extend through the casing and provide fluid communication between the rotor chamber and the pump chamber.