Abstract: A washer to be arranged in a mechanical connection between an energy storage module and a housing of an electrical energy store for a motor vehicle includes an axial hole for receiving a connector and axially opposing bearing surfaces for pressing against metal contact surfaces of the energy storage module and the housing. The washer has a metal bushing for providing a current path between the contact surfaces for potential equalization between the energy storage module and the housing, the axially opposing faces of the bushing forming the bearing surfaces. The bushing has, between the faces, a tapering cross section forming a fuse for interrupting the current path in the event of overcurrent.

Abstract: A hybrid oil pump for a motor vehicle includes a pump device, a separate electric motor which is exclusively associated with the hybrid oil pump, and an input shaft. The pump device is electrically drivable by the electric motor or mechanically drivable via the input shaft. An engine lubrication system and a vehicle include such a hybrid oil pump.