Abstract: A battery housing for a vehicle battery includes a housing cover and a housing tray. The housing cover and the housing tray while using a seal are connected to one another in a fluid-tight manner, wherein the housing cover has an extent in the longitudinal direction and in the transverse direction. The housing cover moreover includes reinforcement ribs. The reinforcement ribs are formed from three dissimilar rib types, wherein the three rib types are formed by longitudinal ribs, transverse ribs, and diagonal ribs. At least one nodal point is arranged on the housing cover, three reinforcement ribs which are formed by at least two dissimilar rib types intersecting one another in said nodal point.

Abstract: A battery system, in particular for driving a vehicle, includes a battery housing, accumulator cells, and a coolant pump. The battery housing includes a coolant inlet and a coolant outlet, wherein the coolant inlet is fluidically connected to the coolant pump. A valve which controls a volumetric coolant flow entering the battery housing is arranged between the coolant pump and the coolant inlet. An excessive coolant pressure within the battery housing can be counteracted in this way.

Abstract: An internal combustion engine for a motor vehicle includes a crankcase ventilation device for removing blow-by gas from a crankcase, a pressure sensor being provided for measuring the gas pressure in said crankcase, and a control unit connected to and in communication with the crankcase ventilation device being configured and/or programmed to run a tightness test for said crankcase ventilation device when the internal combustion engine is switched off.

Abstract: A clutch apparatus may include a first shaft member having a first end portion including axially extending first protrusions. The clutch apparatus may also include a second shaft member arranged axially opposite the first shaft member, the second shaft member having a second end portion including axially extending second protrusions. Additionally, the clutch apparatus may include a clutch member having a disk-shaped main body arranged between the first shaft member and the second shaft member, the clutch member including an annular rim that encircles the main body and protrudes beyond the the main body in both axial directions, the annular rim including first recesses disposed on a first side of the clutch member and second recesses disposed on a second side of the clutch member. The second end portion may further include at least one latching element and the clutch member may further include at least one mating latching element.

Abstract: A clutch apparatus may include a first shaft member having a first end portion including axially extending first protrusions. The clutch apparatus may also include a second shaft member arranged axially opposite the first shaft member, the second shaft member having a second end portion including axially extending second protrusions. Additionally, the clutch apparatus may include a clutch member having a disk-shaped main body arranged between the first shaft member and the second shaft member, the clutch member including an annular rim that encircles the main body and protrudes beyond the main body in both axial directions, the annular rim including first recesses disposed on a first side of the clutch member and second recesses disposed on a second side of the clutch member. The second end portion may further include at least one latching element and the clutch member may further include at least one mating latching element.