The purpose of the present disclosure is to provide a thrust bearing cooling device which can improve the cooling efficiency of a thrust bearing. A thrust bearing cooling device comprising: a fluid storage tank in which a thrust bearing is installed and a fluid is stored, an outer surface of the fluid storage tank being exposed to external air; and at least one heat exchange fin provided in the fluid storage tank.

A generator according to the present disclosure includes: a housing forming an outer shape; a rotation shaft that is at least partially inserted into the housing, and rotated according to external power; a rotor coupled to the rotation shaft and rotated together when the rotation shaft is rotated; a stator that is positioned between an inner surface of the housing and an outer surface of the rotor, and wound around with a coil; a cooling module including a fan cover coupled to the housing, and a fan installed inside the fan cover to cause a flow of an air passing through the inside of the housing when a certain power is supplied; and a rotation support part including a cylindrical bearing holder positioned inside the housing, and a bearing which is coupled to an inner circumferential surface of the bearing holder and rotatably supports the rotation shaft. In this case, the bearing holder may effectively remove heat generated in the bearing by forming a flow path of the air flowing by the fan in at least one of an inner side and an outer side.

A generator according to the present disclosure includes: a housing forming an outer shape; a rotation shaft that is at least partially inserted into the housing, and rotated according to external power; a rotor coupled to the rotation shaft and rotated together when the rotation shaft is rotated; a stator that is positioned between an inner surface of the housing and an outer surface of the rotor, and wound around with a coil; a cooling module including a fan cover coupled to the housing, and a fan installed inside the fan cover to cause a flow of an air passing through the inside of the housing when a certain power is supplied; and a rotation support part including a cylindrical bearing holder positioned inside the housing, and a bearing which is coupled to an inner circumferential surface of the bearing holder and rotatably supports the rotation shaft. In this case, the bearing holder may effectively remove heat generated in the bearing by forming a flow path of the air flowing by the fan in at least one of an inner side and an outer side.

A vehicle air compressor including a shaft provided with an impeller disposed at one side thereof and a runner disposed at the other side thereof, a motor configured to rotate the shaft, a trust bearing which supports the shaft in a longitudinal direction of the shaft and of which a surface is disposed adjacent to a surface of the runner, wherein a cooling hole for cooling air between the trust bearing and the runner is disposed in the trust bearing.

A tool having a temperature management arrangement includes a single piece unitary body, a channel within the body having a geometric discontinuity that forms a vortex chamber. A tool including a temperature management arrangement having a geometric discontinuity configured as a vortex chamber formed simultaneously with formation of a body. A method for producing a thermal management arrangement comprises additively growing the arrangement while selectively forming a channel in the arrangement, the channel comprising a geometric discontinuity formed as a vortex chamber.

A tool having a temperature management arrangement includes a single piece unitary body, a channel within the body having a geometric discontinuity that forms a vortex chamber. A tool including a temperature management arrangement having a geometric discontinuity configured as a vortex chamber formed simultaneously with formation of a body. A method for producing a thermal management arrangement comprises additively growing the arrangement while selectively forming a channel in the arrangement, the channel comprising a geometric discontinuity formed as a vortex chamber.

A compressor includes a rotor configured to compress air and driven by a shaft. A motor is drives the shaft. The first and second journal bearings facilitate rotation of the shaft. The first journal bearing is upstream from the motor and the second journal bearing is downstream from the motor. The transfer tube is configured to provide cooling air from a bearing cooling air inlet to the first journal bearing. A method for cooling a compressor is also disclosed.

A compressor includes a rotor configured to compress air and driven by a shaft. A motor is drives the shaft. The first and second journal bearings facilitate rotation of the shaft. The first journal bearing is upstream from the motor and the second journal bearing is downstream from the motor. The transfer tube is configured to provide cooling air from a bearing cooling air inlet to the first journal bearing. A method for cooling a compressor is also disclosed.

An outer ring for a deep groove ball bearing assembly is disclosed. The outer ring includes a radially inner surface defining a raceway, and a radially outer surface defining a single groove extending between axial ends of the outer ring. The single groove contacts at least one axial end face of the outer ring.

Various methods and systems are provided for a radial turbocharger. In one example, the turbocharger comprises a turbine case housing a turbine wheel and a compressor case housing a compressor wheel, the turbine case including a vaneless turbine nozzle integrated into the turbine case, a bearing case surrounding a shaft connecting the turbine wheel to the compressor wheel and arranged between the turbine case and compressor case, a plurality of long bolts arranged around a circumference of the turbine case, and a plurality of slots arranged around a circumference of the turbine case, a slot length of each slot extending in a radial direction and adapted to receive a dowel pin having a diameter smaller than the slot length, where each dowel pin, via a corresponding slot, couples the bearing case to the turbine case.