A motor oil pump assembly includes: a motor component; an oil pump component, where the oil pump component is supported on an end cover of the motor component; an inner sound insulation enclosure, where the inner sound insulation enclosure encloses the oil pump component, and the inner sound insulation enclosure and the oil pump component define an inner sound insulation cavity filled with low-pressure oil; and a pre-tightening buffering component, where the pre-tightening buffering component is pressed between an upper end cover of the oil pump component and the inner sound insulation enclosure, and the pre-tightening buffering component is in communication with a high-pressure cavity of the oil pump component.

An outlet gasket which has a gasket structure made of a gasket material, for sealing off a first pressure outlet and a second pressure outlet of a pump, the gasket structure including: a first sealing stay which circumferentially encloses a first fluid passage of the outlet gasket, provided for the first pressure outlet, in a seal in an axial plan view onto the outlet gasket; and a second sealing stay which circumferentially encloses a second fluid passage of the outlet gasket, provided for the second pressure outlet and located laterally next to the first fluid passage, in a seal in the plan view, wherein the gasket structure forms the sealing stays contiguously as a unit, and/or the outlet gasket includes a support structure on which the sealing stays are arranged.

A motorized pump assembly includes a pump and a motor for driving the pump. The pump includes a pump housing that at least in part defines a pump chamber. The motor includes a stator, a rotor rotatable about an axis, a motor housing, and a bearing assembly. The rotor includes a motor shaft extending along the axis. The motor housing includes an endshield that at least in part defines a motor chamber in which the stator and the rotor are at least substantially received. The bearing assembly rotatably supports the motor shaft on the endshield. The pump housing and the endshield are fixed to one another and cooperatively at least in part define an overflow chamber adjacent the pump chamber. The endshield defines a drainage channel fluidly interconnected with the overflow chamber and configured to direct fluid from the overflow chamber away from the bearing assembly.

An automotive hydraulic actuating system for actuating a movable vehicle part, like a roof part or a wheel suspension. The actuating system comprises a pump unit. The pump unit comprises a piston pump which has a pump rotor and an electric motor which has a motor rotor. The pump rotor and motor rotor are incorporated into a single common rotor. The rotor is a one piece item. The rotor is positioned inside a pump chamber around a pump stator of the piston pump. The pump stator provides a full support to the common rotor. Advantageously, without a separate motor stator, the pump unit has a more compact configuration. Additionally, the pump unit has an improved dynamic performance which contributes to a silent and reliable operation at a high rotational speed.

A screw pump with a housing; a housing cover; at least one idler screw held in a bore in the housing; and a bushing arranged on the housing cover with a receiving space bounded by a cylindrical flange, into which one end of the idler screw engages; wherein the bushing has an opening in its base, through which a fluid, supplied by a feed channel in the cover, can be supplied from the end opposite the idler screw under pressure to the end surface of the idler screw, wherein the bushing engages with radial play in a receptacle in the cover and comprises a radial flange, by which it is supported axially on the housing; and wherein at a least certain part of the ring-shaped flange of the bushing engages in the bore and is accommodated therein with play.

A bead gasket for sealing off a gap between a first component and a second component, the bead gasket including: a first gasket layer including a holding element; a second gasket layer comprising a complementary holding element; and one or more folding portions which connect(s) the first gasket layer and the second gasket layer, wherein the first gasket layer, the second gasket layer and the respective folding portion are formed in one piece, and the gasket layers are or can be folded one onto the other by folding over the respective folding portion, such that they face each other in an axial direction, and wherein the holding element and the complementary holding element are in or can be moved into a holding engagement with each other based on a positive fit and/or frictional fit, in order to secure the gasket layers against diverging from each other.

A sealing arrangement is disclosed for use in a pump. The sealing arrangement can include a first pump component having a first face surface. The first face surface can have a sealing protrusion thereon. A second pump component can have a second face surface positioned in confronting relation to the first face surface. The second pump component can define a sealing cavity for holding a fluid under pressure. The sealing protrusion is positioned to engage the second face surface when the first face surface is pressed against the second face surface so that the sealing protrusion seals against the second face surface to prevent movement of the fluid from the sealing cavity past the sealing protrusion. Other embodiments are described and claimed.

An electric oil pump includes a motor unit having a shaft, and a pump unit which is disposed on a front side of a motor unit and is driven via the shaft and discharges oil. The motor unit includes a rotor that rotates around the shaft, a stator that is disposed to face the rotor, and a resin housing in which the rotor and the stator are housed. The pump unit includes a pump rotor installed to the shaft and a pump housing having a housing part in which the pump rotor is housed. A step that is recessed inwardly in the radial direction of the pump housing is provided on an outer surface outside the pump housing in the radial direction, the step is disposed on a rear side with respect to the housing part, and a front side end of the resin housing is fixed to the step.

An electric oil pump includes a motor unit having a shaft and a pump unit which is disposed on a front side of the motor unit, is driven by the shaft, and discharges oil. The motor unit includes a rotor, a stator, and a resin housing in which the rotor and the stator are housed. The pump unit includes a pump rotor provided at the shaft and a pump housing having a housing part in which the pump rotor is housed. The pump housing includes the pump body that is supported by the shaft via a sliding bearing and a pump cover that covers a front side of the pump body. A rear side of the shaft is supported by the resin housing via a rolling bearing and a front side of the shaft that protrudes from the motor unit is supported by a pump body via the sliding bearing.

A seal tube assembly of a pump system is provided. The seal tube assembly includes a single seal tube having a first axial end sealably coupled to a first vane pump and a second axial end sealably coupled to a second vane pump. The single seal tube includes transverse contact surfaces at the first axial end and transverse contact surfaces at the second axial end. The single seal tube is formed to define a first seal tube cavity at the first axial end and a second seal tube cavity at the second axial end