A fluid pump includes a pump element in communication with an inlet and an outlet. Rotation of the pump element generates a suction at the inlet and pressure at the outlet. The suction and pressure cooperate to move a fluid through a fluid path. An accessory fluid path is in communication with the inlet and outlet. The accessory fluid path includes a thermistor in communication with the accessory fluid path. The thermistor monitors a temperature of the fluid within the accessory fluid path.

A compressor system (01) with a system housing (02), in which are arranged heat generating system components (06) comprising at least one compressor stage (201) for compressing a gaseous medium, an air water cooler (12), a blower (15) which generates a cooling air flow (16), and air conducting elements. A cooling air channel (07) is configured which has an inlet opening (08) in the upper section of the system housing (02) and an outlet opening (09) in the lower section of the system housing (02), wherein upper air conducting elements (13) are positioned in order to conduct the cooling air flow (16) after flowing through the air water cooler (12) to the inlet opening (08), and lower air conducting elements (17) are positioned in order to conduct the cooling air flow (16) from the outlet opening (09) to the system components (06).

To improve the accuracy of detecting a current flowing through an electric compressor after operation of the electric compressor, the electric compressor having a large change in temperature before and after operation. An inverter-integrated electric compressor (1) that compresses and discharges a refrigerant suctioned therein, includes an inverter device (2) provided with a circuit board (60) mounted with an inverter circuit (40), the inverter device (2) being integrally incorporated in an inverter case. The circuit board (60) is provided with a current detection circuit (30) that detects an input current flowing through the inverter circuit (40), and an offset correction circuit (20). The current detection circuit (30) includes a shunt resistor (32) that is serially connected to the inverter circuit (40) and detects a current, and a first amplifier (31) that amplifies and outputs a voltage appearing as a voltage drop in the shunt resistor (32). The offset correction circuit (20) includes a second amplifier (21) that performs an offset correction of the first amplifier (31). The first amplifier (31) and the second amplifier (21) are integrated into a single integrated circuit.

A fluid drive device includes a first rotor assembly, a second rotor assembly, a stator assembly and a circuit board assembly. The second rotor assembly is connected torque-transmissively to the first rotor assembly, and the stator assembly is electrically connected to the circuit board assembly. The fluid drive device is provided with a first cavity and a second cavity. The first rotor assembly is located in the first cavity. The second rotor assembly, the stator assembly and the circuit board assembly are located in the second cavity. In the case that the second cavity accommodates a working medium, at least part of the circuit board assembly is in contact with the working medium located in the second cavity.

A compressor module for a refrigerant circuit of a motor vehicle air-conditioning system, exhibiting a modular multi-part housing with a low-pressure refrigerant inlet, a high-pressure refrigerant outlet and a compressor, characterized in that an inner heat exchanger of the refrigerant circuit is produced such that it is integrated into the compressor module, wherein the housing of the compressor module fully encloses the inner heat exchanger.

In at least one embodiment the present invention provides a vacuum pump assembly having a vacuum pump body defining a cylindrical internal pump chamber housing a rotary vane rotatable about an axis radially removed from the center of the cylindrical internal pump chamber, an inlet, at least one outlet, a rotary power source abutting the vacuum pump body and having a proximal surface fluidly communicating with the internal pump chamber by way of the at least one outlet; the rotary power source having a rotating shaft operably connected to the rotary vane, and an electronics housing positioned adjacent the vacuum pump body such that as the rotary vane is rotated a first abbreviated crescent shaped working space is defined in communication with the inlet and as the rotary vane continues to rotate a second abbreviated crescent shaped working space is defined in communication with the at least one outlet.

A motor-driven compressor includes a compressor unit, a motor unit including a motor, and an inverter unit that drives the motor. The compressor unit, the motor unit, and the inverter unit are lined up in an axial direction of the motor. The motor-driven compressor further includes a housing that accommodates the compressor unit and the motor unit. The inverter unit includes an inverter module. The inverter module includes U-phase, V-phase, and W-phase semiconductor elements that respectively configure U-phase, V-phase, and W-phase arms and a substrate on which the semiconductor elements are bare-chip-mounted. The substrate includes a heat dissipation surface that is thermally connected to the housing. The semiconductor elements are arranged along a contour of the housing.

A compressor module for a refrigerant circuit of a motor vehicle air-conditioning system, exhibiting a modular multi-part housing with a low-pressure refrigerant inlet, a high-pressure refrigerant outlet and a compressor, characterized in that an inner heat exchanger of the refrigerant circuit is produced such that it is integrated into the compressor module, wherein the housing of the compressor module fully encloses the inner heat exchanger.

A fluid pump includes a pump element in communication with an inlet and an outlet. Rotation of the pump element generates a suction at the inlet and pressure at the outlet. The suction and pressure cooperate to move a fluid through a fluid path. An accessory fluid path is in communication with the inlet and outlet. The accessory fluid path includes a thermistor in communication with the accessory fluid path. The thermistor monitors a temperature of the fluid within the accessory fluid path.

A device for driving a compressor of a vaporous fluid which exhibits a housing with a cooling surface and a power supply arrangement with at least one switching element, at least one PCB, as well as at least one spring element for applying a spring force on the at least one switching element. The switching element is connected to the PCB. The cooling surface and the PCB are arranged relative to one another in a direction z with spacing. The at least one switching element is arranged such that it is in contact with the housing with a first surface in the area of the cooling surface and that the at least one spring element for pressing the switching element against the cooling surface is in contact with a second surface of the switching element.