Abstract: A vacuum pump for supplying a machine assembly with negative pressure, the vacuum pump including a housing featuring a delivery chamber which includes a chamber inlet opening and a chamber outlet opening for a gaseous fluid; a suction port for establishing a fluid connection to the machine assembly; a suction channel which connects the delivery chamber to the suction port; and a relief channel which connects the delivery chamber to a relief opening of the housing; a delivery member which can rotate in the delivery chamber in a forward rotational direction and a reverse rotational direction. The fluid is suctioned into the delivery chamber through the chamber inlet opening and discharged through the chamber outlet opening by rotating the delivery member in the forward rotational direction.

Abstract: A rotary pump includes: a pump housing having a low-pressure inlet and a high-pressure outlet; a delivery rotor rotatable about a rotational axis and including multiple deliverers distributed over the circumference of the rotor for delivering a fluid from the low-pressure inlet to the high-pressure outlet; and a setting element for adjusting the delivery volume of the pump. The inlet end of the setting element includes a first circumferential portion which extends circumferentially in the rotational direction of the rotor and the axial width of which is smaller than the axial width of the deliverers and a second circumferential portion which adjoins the first circumferential portion in the rotational direction and the axial width of which is greater than the axial width of the first circumferential portion.

Abstract: A pump includes a pump housing including an inlet for the fluid on a low-pressure side, an outlet for the fluid on a high-pressure side, a circumferential wall facing faces axially away from the delivery chamber and on which the outlet emerges; a spring structure arranged on the outer end face of the end wall; a delivery member movable within the delivery chamber for delivering the fluid from the low-pressure side to the high-pressure side; and a securing device for axial securing the pump housing. The securing device includes a female holding element having an axially extending cavity and a male holding element in a joining engagement, exposable to an axial tensile load, with the female holding element in the cavity. The spring structure and/or the end wall is/are held on the pump housing by one of the holding elements by the joining engagement.

Abstract: A pump for applying fluid to an assembly, the pump including: a pump housing featuring a circumferential wall surrounding a delivery chamber of the pump, an end-facing housing wall including an outer end-facing surface of the housing which faces axially away from the delivery chamber, an inlet and an outlet for the fluid which emerges on the outer end-facing surface of the housing; a delivery member, moveable within the delivery chamber, for delivering the fluid from a low-pressure side of the pump which includes the inlet to a high-pressure side of the pump which includes the outlet; and an axial gasket which fully surrounds the outlet, in order to separate it from the low-pressure side, in an axial view onto the end-facing wall of the housing. The axial gasket is a spring gasket in the form of a disc spring or hollow-profile spring or V-profile spring or bellows spring.

Abstract: A control valve for a pump for delivering a fluid. The control valve includes: a valve housing which delineates a piston chamber; a piston which can be moved within the piston chamber; and a fluid channel which ports into the piston chamber via a port opening, wherein the port opening defines a port control edge. The valve housing includes a recess which extends into the fluid channel, wherein the recess defines a recess control edge which is axially offset with respect to the port control edge, and/or the piston includes a piston recess which defines a piston recess control edge.

Abstract: A rotary pump including: a pump housing including a circumferential wall, which surrounds a delivery chamber, a first end-face wall and a second end-face wall which delineate the delivery chamber at its end-face sides; a rotor, which can be rotated in the delivery chamber, for forming delivery cells; a pressure outlet which emerges on an outer end-face side of the first end-face wall facing away from the delivery chamber; an outlet gasket which is provided on the outer end-face side of the first end-face wall, for sealing off the pressure outlet; and a pressing device for charging the outlet gasket with an axial pressing force.

Abstract: A device including a valve array which is adapted to allow and block a fluid flow, wherein the valve array includes: a fluid channel; a valve seating; and a closing body, for example a rotationally symmetrical or spherical closing body, which is arranged in the fluid channel. The valve array is configured to allow a fluid flow when the closing body is lifted off the valve seating, and to prevent a fluid flow when the closing body rests against the valve seating. The valve seating is formed by a valve seating body, for example an annular valve seating body, which is arranged in or on the fluid channel.

Abstract: A pump is described, including: a drive shaft including a rotor; a first housing part and a second housing part, between which a pump chamber is formed, in which the rotor is arranged; a rotary bearing via which the drive shaft is mounted on the first housing part such that it can rotate about its rotational axis; and a passage including a first opening and a second opening, wherein the rotary bearing is arranged between the pump chamber and the first opening, and the second opening of the passage emerges onto the side of the second housing part which faces away from the pump chamber.

Abstract: A rotary pump, preferably a vane cell pump or a pendulum slider pump, includes a stator and a rotor which rotates about a rotational axis within the stator. The rotor includes multiple delivery elements which move radially in relation to the rotational axis, and two adjacent delivery elements limit a delivery cell together with the outer surface area of the rotor and the inner surface area of the stator. At least two delivery cells, preferably two adjacent delivery cells, exhibiting a first maximum cell volume form a first delivery cell group and at least two other delivery cells, preferably two other adjacent delivery cells, exhibiting a second maximum cell volume form a second delivery cell group. The first maximum cell volume of the delivery cells of the first delivery cell group is larger than the second maximum cell volume of the delivery cells of the second delivery cell group.

Abstract: A pump for supplying an assembly with a pressure fluid, the pump including: a pump housing including a circumferential wall, surrounding the pump's, a first end-face wall and a second end-face wall which delineate the delivery chamber at its end-face sides; a rotor, rotatable about an axis of rotation in the delivery chamber, for forming delivery cells; a pressure outlet which emerges on an outer end-face side of the first end-face wall facing away from the delivery chamber and through which pressure fluid can be discharged from the delivery chamber; an outlet gasket provided on the outer end-face side of the first end-face wall, for sealing off the pressure outlet; a holder in a holding engagement with the outlet gasket and which positions the circumferential wall and the end-face walls relative to each other and axially holds them together as a pre-fitted fitting unit by the holding engagement.

Abstract: A vane cell pump, including: a rotor and a plurality of vanes rotatable with the rotor, wherein the rotor includes a sub-vane chamber for each vane, and each vane forms a shifting wall of the sub-vane chamber assigned to it; first and second end-facing walls adjoining the rotor on end-facing sides and which, in order to control pressure to the sub-vane chamber, include sub-vane cavities which extend in the circumferential direction of the rotor and include control edges as viewed in the circumferential direction; wherein the control edge of the sub-vane cavity of the first end-facing wall, and the control edge of the sub-vane cavity of the second end-facing wall which is similar to it, are arranged angularly offset about the rotational axis as the apex with respect to each other.

Abstract: A fluid supply system supplying multiple fluid consumers of a vehicle with fluid, the fluid supply system including: a first pump supplying a first fluid consumer, arranged in a first supply circulation of the vehicle, with fluid; a second pump supplying a second fluid consumer, arranged in a second supply circulation of the vehicle, with fluid; and a directional control valve adjustable between a first valve position and at least one other, second valve position and preferably includes an electromagnetic device for adjusting. The directional control valve allows the fluid to be delivered from the second pump into the first supply circulation in the first valve position and separates the first supply circulation from the second pump, or allows the fluid to be delivered from the second pump into the first supply circulation only to a restricted extent as compared to the first valve position, in the second valve position.

Abstract: A pump having an adjustable delivery volume, including: a pump housing featuring a delivery chamber which includes a delivery chamber inlet for a fluid and a delivery chamber outlet for the fluid; a delivery member, which can be rotated within the delivery chamber, for delivering the fluid; an adjusting device featuring a setting structure, which is mounted such that it can move back and forth within the pump housing in order to adjust the delivery volume of the pump, and a helical spring for applying a spring force, which acts in a setting direction, to the setting structure, wherein the windings of the helical spring are enclosed by an envelope lying on the outside of the helical spring wherein the cross-sectional area of the envelope as measured transversely with respect to the longitudinal direction of the spring changes progressively in the longitudinal direction of the spring.

Abstract: A rotary pump includes: a housing featuring a housing inlet and a low-pressure space on a low-pressure side of the pump and featuring a housing outlet and a high-pressure space on a high-pressure side of the pump; a delivery chamber; a delivery rotor in the delivery chamber; a setting structure which can be moved in a first setting direction and, counter to the first setting direction, in a second setting direction in order to perform a setting movement which adjusts the specific delivery volume of the rotary pump; and at least a first setting chamber for charging the setting structure with a setting pressure which acts in the second setting direction, wherein the fluid pressure in the high-pressure space acts on a pressure equalization surface on the outer circumference of the setting structure resulting in an external additional force which acts on the setting structure in the first setting direction.

Abstract: A pump for applying fluid, the pump including: a pump housing, including: a fluid inlet on a low-pressure side; an fluid outlet on a high-pressure side; a circumferential wall surrounding the pump delivery chamber; and an end-facing wall featuring an outer end-facing surface facing axially away from the delivery chamber and at which the outlet emerges; a delivery member, moveable in the delivery chamber, for delivering the fluid from the low-pressure side to the high-pressure side; a gasket including a gasket loop which surrounds the outlet to seal it off on the outer end-facing surface of the end-facing wall; a female joining element featuring an axially extending hollow space; and a male joining element protruding through or from the pump housing or the gasket. The male joining element is in a joining engagement, which can be subjected to axial tensile stress, with the female joining element in the hollow space.

Abstract: A gas pump including a delivery chamber with an inlet and an outlet for a gas. The delivery chamber is at least partially enclosed by a first housing part with a first sealing surface and a second housing part with a second sealing surface. A delivery device is moveable within the delivery chamber for delivering the gas. A pressing device presses one of the housing parts against the other with a pressing force such that the sealing surfaces abut each other and together form a sealing join which at least partially surrounds the delivery chamber in order to seal off the delivery chamber. The second housing part can be moved relative to the first housing part, against the pressing force, in order to be able to widen the sealing join to form a relieving gap through which liquid situated in the delivery chamber can escape.

Abstract: An internal gear pump for forward and reverse operations, including: a pump housing which includes a first fluid port and a second fluid port, wherein in a first rotational direction, the first fluid port is formed as a fluid outlet and the second fluid port is formed as a fluid inlet, and in a second rotational direction, the first fluid port is formed as a fluid inlet and the second fluid port is formed as a fluid outlet; an internal gear and an external gear which together form delivery cells in order to deliver a fluid; a first rotary bearing which mounts the internal gear; and a second rotary bearing which mounts the external gear; and includes a lubricant feed which sets a fluid flow between the fluid ports through the two rotary bearings in both rotational directions.

Abstract: A valve arrangement to allow a fluid flow in a first direction and block it in a second direction opposite the first direction. The valve arrangement includes: a fluid channel, a valve seat and a closing body arranged in the fluid channel. The closing body prevents fluid flow in the second direction when resting against the valve seat and allows fluid flow in the first direction when the closing body is lifted off the valve seat; a closing body holder in the fluid channel configured to restrict movement of the closing body in the first direction when the closing body is lifted off the valve seat. The closing body holder held on an inner circumferential wall of the fluid channel in a frictional fit and/or movable in the first direction in a position in which the closing body holder is held on an inner circumferential wall of the fluid channel.

Abstract: A vane cell pump, including: a delivery chamber having an inlet and an outlet; a rotor which is arranged in the delivery chamber and has a rotor body and vanes which are accommodated by the rotor body such that they can be shifted radially; an end-facing wall which delineates the delivery chamber on an axial end-facing side; and a supporting element which is arranged axially between the end-facing wall and the rotor body and which supports the vanes at their radially inner vane ends, wherein the rotor body, the supporting element and each two vanes which are adjacent in the circumferential direction of the rotor form chambers, the volume of which varies when the rotor is rotating. A pressure equalization connection fluidically connects at least two of the chambers to each other.

Abstract: A rotary pump, including: a housing featuring a delivery space which includes an inlet for a fluid on a suction side of the rotary pump and an outlet for the fluid on a pressure side of the rotary pump; an inner rotor which is arranged in the delivery space; an outer rotor which is arranged in the delivery space and forms delivery cells with the inner rotor, wherein an outer circumferential wall of the outer rotor is mounted in a sliding manner on an inner circumferential wall of the delivery space, wherein the inner circumferential wall of the delivery space and/or the outer circumferential wall of the outer rotor comprises at least one pocket.