US 12,240,313 B2
Motor vehicle cooling system with an electric coolant pump
Luis Herrling, Föritztal (DE); Heidemarie Weinert, Reurieth OT Siegritz (DE); Conrad Nickel, Troistedt (DE); and Jakob Schnitzer, Hilburghausen (DE)
Assigned to NIDEC GPM GMBH, Auengrund OT Merbelsrod (DE)
Filed by NIDEC GPM GmbH, Auengrund OT Merbelsrod (DE)
Filed on Aug. 19, 2022, as Appl. No. 17/891,201.
Claims priority of application No. 10 2021 122 505.1 (DE), filed on Aug. 31, 2021.
Prior Publication US 2023/0060455 A1, Mar. 2, 2023
Int. Cl. B60K 11/02 (2006.01); F04B 39/12 (2006.01); F04B 39/14 (2006.01); F04B 53/16 (2006.01); F04B 53/22 (2006.01); F16B 2/14 (2006.01)
CPC B60K 11/02 (2013.01) [F04B 39/121 (2013.01); F04B 39/14 (2013.01); F04B 53/16 (2013.01); F04B 53/22 (2013.01); F16B 2/14 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A motor vehicle cooling system, comprising:
an electric coolant pump;
a housing that houses a pump shaft; and
a clamping device; wherein
the electric coolant pump includes an electric motor located in a motor housing;
the electric coolant pump is at least partially accommodated in the pump shaft;
the clamping device includes at least two clamping arms fastened to an upper side of the motor housing, the clamping arms being provided with free ends thereof against an inner side of the pump shaft and clamping the electric coolant pump to the housing;
wedge-shaped projections are provided on a lateral surface of the motor housing, each of the at least two clamping arms being supported on one of the projections; and
a total height of the projections increases downwards in a longitudinal direction from the lateral surface, such that when the clamping device is mounted on the upper side of the motor housing, the clamping arms slide on the wedge-shaped projections and are spread outwardly away from the longitudinal axis of the electric coolant pump.