A vibration body unit includes: a vibration body; an inner cylinder that surrounds a circumference of the vibration body and that is elastically deformable; an outer cylinder that surrounds a circumference of the inner cylinder and that has an attachment section which is attached to a base part; a plurality of first spacers that are interposed between the vibration body and the inner cylinder and that are arranged to be spaced in a circumferential direction; and a plurality of second spacers that are interposed between the inner cylinder and the outer cylinder and that are arranged to be spaced in a circumferential direction, wherein the plurality of first spacers and the plurality of second spacers are arranged such that at least part of each of the plurality of first spacers faces each of the plurality of second spacers in a radial direction across the inner cylinder.

A vibration body unit includes: a vibration body; an inner cylinder that surrounds a circumference of the vibration body and that is elastically deformable; an outer cylinder that surrounds a circumference of the inner cylinder and that has an attachment section which is attached to a base part; a plurality of first spacers that are interposed between the vibration body and the inner cylinder and that are arranged to be spaced in a circumferential direction; and a plurality of second spacers that are interposed between the inner cylinder and the outer cylinder and that are arranged to be spaced in a circumferential direction, wherein the plurality of first spacers and the plurality of second spacers are arranged such that at least part of each of the plurality of first spacers faces each of the plurality of second spacers in a radial direction across the inner cylinder.

A cooling circuit for a vehicle includes at least one pump (10) and a plurality of branches (12, 14) for circulation of a cooling fluid. At least one branch (12) includes a flow rate limiter (24) with a valve (28), the flow rate limiter including a body (26) in which is mounted a valve (28) mobile between a first position in which it delimits a first fluid passage section (S2) at the outlet of the limiter and a second position in which it delimits a second fluid passage section (S3) in the limiter, the second section being smaller than the first section. The valve is biased into its first position and configured to be moved from the first position to the second position when the fluid flow rate at the inlet of the limiter exceeds a predetermined threshold.

A cooling circuit for a vehicle includes at least one pump (10) and a plurality of branches (12, 14) for circulation of a cooling fluid. At least one branch (12) includes a flow rate limiter (24) with a valve (28), the flow rate limiter including a body (26) in which is mounted a valve (28) mobile between a first position in which it delimits a first fluid passage section (S2) at the outlet of the limiter and a second position in which it delimits a second fluid passage section (S3) in the limiter, the second section being smaller than the first section. The valve is biased into its first position and configured to be moved from the first position to the second position when the fluid flow rate at the inlet of the limiter exceeds a predetermined threshold.

A liquid-cooled heat dissipation device is disclosed, comprising a main body, a centrifugal pump, an inlet pipe, an outlet pipe, a centrifugal fan and a motor. The main body comprises a shaft hole, liquid flow channels and airflow channels. The centrifugal pump guides a cooling liquid through the inlet pipe, main body and outlet pipe. The centrifugal fan guides air into the main body axially from the shaft hole. After passing through the centrifugal fan, the air forms centrifugal airflows and leaves the body radially through the airflow channels. With an extended flow path of the cooling liquid and the radial flow of the centrifugal airflow provided by the present invention, the temperature of the cooling liquid may be quickly reduced and the cooling effect may be improved. Thus, the structure is compact, small, light-weight, easy-to-assemble.

A liquid-cooled heat dissipation device is disclosed, comprising a main body, a centrifugal pump, an inlet pipe, an outlet pipe, a centrifugal fan and a motor. The main body comprises a shaft hole, liquid flow channels and airflow channels. The centrifugal pump guides a cooling liquid through the inlet pipe, main body and outlet pipe. The centrifugal fan guides air into the main body axially from the shaft hole. After passing through the centrifugal fan, the air forms centrifugal airflows and leaves the body radially through the airflow channels. With an extended flow path of the cooling liquid and the radial flow of the centrifugal airflow provided by the present invention, the temperature of the cooling liquid may be quickly reduced and the cooling effect may be improved. Thus, the structure is compact, small, light-weight, easy-to-assemble.

A cooling circuit for a vehicle, in particular a motor vehicle, includes a pump having at least one rotor that is driven in rotation by a motor and configured to force the circulation of cooling liquid in the circuit. The at least one rotor includes at least one driving screw that is driven by the motor, and at least one driven screw that is driven by the at least one driving screw, the driving screw(s) and driven screw(s) being configured to force the circulation of cooling liquid in the circuit.

A cooling circuit for a vehicle, in particular a motor vehicle, includes a pump having at least one rotor that is driven in rotation by a motor and configured to force the circulation of cooling liquid in the circuit. The at least one rotor includes at least one driving screw that is driven by the motor, and at least one driven screw that is driven by the at least one driving screw, the driving screw(s) and driven screw(s) being configured to force the circulation of cooling liquid in the circuit.

A pump assembly for a motor vehicle, comprising at least one mechanical drive, at least one electric drive, and at least one planetary gearbox, wherein the mechanical drive and the electric drive are coupled to one another via the planetary gearbox, the electric drive comprising a rotor shaft that is designed as a hollow shaft, wherein the rotor shaft is mounted at one side on a housing of the pump assembly via a ball bearing and at the other side in a gear stage of the planetary gearbox.

An apparatus for handling fluid within an at least partially electrically powered vehicle, including: a valve device with a valve housing, the valve housing includes at least eight radially arranged port openings for fluid to flow in or out, a valve body, which is arranged inside the valve housing and is rotatable about an axis of rotation R, and the valve body includes at least four connecting channels for fluidly connecting two port openings, respectively.