Provided is an outer enclosure for a turbo blower in which a turbo blower is installed, which includes a housing forming an exterior of the outer enclosure, an outside air inflow chamber which is a space partitioned in one side inside the housing and which communicates with the outside through an outside air inlet, an inverter chamber which is a space partitioned in the other side inside the housing, a motor chamber which is a space partitioned in an upper portion of a space positioned between an inverter chamber and the outside air inflow chamber, and in which a turbo blower including an intake nozzle communicating with the outside air inflow chamber is positioned, and a first refrigerant discharge port is positioned on one side, a refrigerant inflow chamber which is a space in a lower portion of the motor chamber and which communicates with the outside through a refrigerant inlet, in which the upper and lower portions of the inverter chamber are in communication with the motor chamber and the refrigerant inflow chamber, respectively, and the refrigerant inflow chamber is communication with the motor chamber.

An electric turbomachine for use with an internal combustion engine, turbocharger or a fuel cell e-compressor, said electric turbomachine comprising: a compressor (20) that is arranged to compress fluid within a turbo compressor when it is rotationally driven about a rotational axis (R) by a shaft, said shaft being rotational supported by a drive-end bearing (65) and a non-drive-end bearing (85), and a high-speed electrical machine located within a housing (50) that is arranged to rotationally drive the shaft about the rotational axis (R); said housing comprising a drive-end wall (60) that the shafts extends through to rotationally drive the compressor, a non-drive- end wall (80) at the opposing end of the electric turbomachine to the compressor, and a side wall (55) that extends between the drive-end wall and the non-drive-end wall, and wherein the electric turbomachine comprises a cooling system (330), for receiving a flow of a coolant fluid to cool the electric turbomachine, that is integrated within the housing of the electric turbomachine.

A compressor has a stator assembly, a rotor assembly, and a housing within which the stator assembly and the rotor assembly are located. The housing has a first end, a second end, and an air inlet disposed between the first and second ends. The compressor has a flow guide disposed within the air inlet. The flow guide is configured to split air flowing through the air inlet in use into a first airflow toward the first end of the housing and a second airflow toward the second end of the housing.

Rotor systems including an engine shaft, a forward hub, a rear hub, a rotor disk arranged between the forward hub and the rear hub, and a seal tube configured to define a forward hub compartment and a rear hub compartment. The forward hub compartment is defined forward of the rotor disk and the rear hub compartment is defined aft of the rotor disk. The seal tube is connected at a forward end to at least one of the rotor disk and the engine shaft and at a rear end to at least one of the rear hub and the engine shaft and the seal tube includes at least one axial compliance element configured to enable axial extension and compression of the seal tube in an axial direction along the engine shaft.

A centrifugal compressor that includes: a rotary shaft; a compressor impeller mounted on the rotary shaft and configured to rotate together with the rotary shaft to compress a fluid; a housing accommodating the rotary shaft and the compressor impeller; and a thrust bearing supporting the rotary shaft in a thrust direction such that the rotary shaft is rotatable. The housing includes: an impeller chamber in which the compressor impeller is accommodated; a thrust bearing accommodation chamber in which the thrust bearing is accommodated; and a partition wall separating the impeller chamber from the thrust bearing accommodation chamber. The partition wall has therein a cooling gas passage through which cooling gas flows to cool the thrust bearing and a cooling water passage through which cooling water flows to cool the partition wall.

A vacuum pump and a vacuum pump component are provided that achieve the efficient heat dissipation of the rotor without changing the material or structure of stator blades or rotor blades. The vacuum pump includes a casing having a gas inlet port and a gas outlet port and a rotor configured to rotate in the casing. The vacuum pump is configured to exhaust gas from the gas inlet port to the gas outlet port by rotation of the rotor. The rotor substantially has the shape of a cylinder. A purge gas flows between the inner circumference surface of the rotor and the stator column that faces at least a part of the inner circumference surface of the rotor. A projection or a groove that disturbs the flow of the purge gas is provided in the flow passage of the purge gas.

A turbine engine for an aircraft can includes a casing. The casing can be a fan casing surrounding a fan assembly for drawing air into the turbine engine. The fan casing can have a peripheral wall. A surface cooler can be provided in the turbine engine confronting the peripheral wall of the fan casing. The surface cooler can have a mounting bracket for mounting the surface cooler to the fan casing.

A vacuum pump capable of removing side reaction products without overhaul is provided. The vacuum pump includes A motor for rotating a rotor, a heater capable of raising a temperature, a base spacer for holding the heater, a controller capable of controlling the heater by switching an operation mode between a normal operation mode and a cleaning operation mode, and a storage portion storing information on a set temperature relating to the heater, the storage portion stores at least first temperature information for the normal operation mode, or more specifically, set temperature information capable of using the pump without nonconformity, second temperature information for the cleaning operation mode, or more specifically, set temperature information capable of re-gasifying side reaction products generated during the normal operation mode, and the temperature represented by the second temperature information is higher than the temperature represented by the first temperature information.

The present invention relates to an air compressor for a vehicle and, more specifically, to an air compressor for a vehicle wherein the entire operation of the air compressor may be stabilized by a cooling unit in which a portion of the compressed air that moves through a connection pipe conveying primarily compressed air exchanges heat with a cooling water flowing part to cool the driving unit.

A control system that uses an algorithm to control the fan speed in a cooling system for an engine is disclosed. The algorithm is adapted to maintain a cooling medium at a set temperature instead of an operating temperature range of the cooling medium. The algorithm is also adapted to maintain a cooling medium at a set temperature and to build a cooling safety margin in response to an engine output torque percentage that is below an output torque percentage setpoint.