Joma-hydromechanic Gmbh

Joma-polytec Gmbh

Other

Joma-polytec Kunststofftechnik Gmbh

Willi Schneider

Torsten Helle

Bernd Hess

Reiner Schmid

Friedhelm Pfitzer

Hans-Peter Ott

Dirk Ehrenfeld

Gerd Werding

Andreas Blank

Martin Thoma

Benjamin Kawa

Peter Jeschonnek

Alexander Maute

Torslen Helle

The invention relates to a positive displacement pump, including a pot-shaped housing, a rotor rotatably supported in the housing, and at least one blade movably guided in the rotor, the blade tip of which contacts the inner circumferential wall of the housing and divides the interior into chambers, wherein a locking mechanism that inhibits or brakes the movement of the blade in the rotor is provided.

Positive displacement pump having axial movement coupling and rotational decoupling

A vane pump includes at least one vane, a pump housing with a bottom and a lid, and a rotor rotatably mounted in the pump housing, with the at least one vane being slidingly mounted in a groove in the rotor and having at least one vane tip which protrudes from the outer peripheral surface of the rotor and rests upon the inner peripheral surface of the pump housing so that the vane defines with the bottom and the lid an intake chamber and a pressure chamber to respectively interact with a radially outer inlet opening and outlet opening in the bottom and/or in the lid, wherein the rotor is provided on the peripheral edge with a chamfer in facing relationship to the housing bottom and/or the housing lid having the inlet opening and/or outlet opening.

Vane pump

The invention relates to a vacuum pump, in particular a vane pump, having a pump housing in which an intake chamber is provided, and a pump housing opening which feeds into the intake chamber, wherein an intake check valve is arranged in the pump housing opening and communicates with the atmosphere or feeds into an external vacuum chamber, with the intake check valve being accommodated in a pot-shaped valve housing, and with the pot-shaped valve housing having a housing bottom and a housing jacket, wherein the housing bottom is connectable to the housing jacket and the housing bottom can be snapped onto the housing jacket.

Vacuum pump

The invention relates to a device for producing and providing a vacuum for a vacuum consumer, having a vacuum source, having a suction valve, having a non-return valve arranged between the vacuum consumer and the suction valve, and having a ventilation valve, the control inlet of which ventilation valve is connected to the suction port of the vacuum source, the output of which ventilation valve opens out between the control valve and the non-return valve, and the input of which ventilation valve is open to the environment.

Device for producing and providing a vacuum, and ventilation valve

The invention relates to a vacuum pump comprising a cup-shaped housing, a rotor eccentrically mounted for rotation in the housing, and a housing cover closing the cup-shaped housing, wherein the rotor has a rotor shaft that passes through the cup-shaped housing and by which the rotor is driven, wherein the rotor shaft is provided with a bore for delivering a lubricant, and a connection nipple is seated in the free end section of the bore.

Vacuum pump with connection nipple for connection between a rotor shaft and a drive

The invention relates to a vacuum pump, in particular a vane cell pump, having a housing in which a suction space is provided, and a housing passage opening into the suction space, wherein a suction non-return valve opening to the outside or into an external vacuum space is arranged in the housing passage, said valve being accommodated in a crucible-shaped housing and the crucible-shaped housing having a housing jacket, wherein the suction non-return valve can be latched in the pump housing passage.

The invention relates to a vane for a vane pump, in particular a vane vacuum pump, having a crucible-shaped housing and provided with a rotor mounted eccentrically and rotatably in the housing, wherein the vane is displaceably mounted perpendicular to the axis of rotation in the rotor and the free ends thereof are in contact with the interior circumferential surface of the housing, wherein the vane has a closed surface, at least in the sections protruding beyond the rotor, in the direction of the interior circumferential surface, and the surface is formed by an exterior wall, which is provided with a coating, wherein the coating is provided with perforations in the area located inside the rotor.

Vane for a single-vane vacuum pump

The disclosure relates to a vane cell pump having an external rotor, an internal rotor and a plurality of vanes which are secured in a pivotable manner on the external rotor and which are displacably mounted in a radial manner in the inner rotor, essentially in radial slots. The external rotor is guided along the inner circumferential surface of a stator. The axis of the stator and the axis of the internal rotor are offset in relation to each other, and the stator can be adjusted in the radial direction in relation to the internal rotor and can be modified by the offset. Said stator is partially enclosed by a clamp which is mounted in a pivotable bearing in the housing of the vane cell pump. The clamp includes clamp arms which protrude on both sides of the pivotable bearing, which partially enclose, respectively, the stator.

Vane cell pump with adjustable output

The invention relates to a rotor pump having an internally toothed outer ring and an externally toothed inner ring which is mounted therein and intermeshes therewith, wherein the outer ring and the inner ring are arranged axis-parallel to one another, and the axes of the outer ring and of the inner ring are at a distance from one another, and the outer ring is connected to a hollow shaft motor with a stator which is fitted with windings, and to a rotor which is rotatably mounted therein, characterized in that the outer ring forms the rotor of the hollow shaft motor.

Integrated internal gear pump with an electric motor

The disclosure relates to a feed pump for hydraulic media having an input and an output. A pressure-reducing element is connected to the output, at the output of the element the system pressure being present and the output being connected to a consumer, wherein the output is connected to the first input of a pump controller, the second input being connected to the output of the pressure-reducing element, and wherein the pump controller adjusts the feed pump toward maximum delivery if the system pressure is smaller than a minimum pressure or if the system pressure is smaller than the feed pressure, and wherein parallel to the pump controller a pressure limiter is switched such that at the first input thereof the feed pressure is present and at the control input the system pressure is present, wherein the pressure limiter opens if the feed pressure is greater than a desired value.

Controller for a variable displacement feed pump

The present disclosure relates to a vane cell pump () which includes an internal rotor () and a plurality of vanes () which are displacably mounted in a radial manner in the internal rotor, essentially, in radial slots () and are directly or indirectly guided on the internal circumferential surface () of a stator (). The axis of the stator and the axis of the internal rotor are offset in relation to each other and the stator () can be adjusted in relation to the internal rotor () in the radial direction and the offset can be altered. The stator () comprises a pivotable bearing () which is arranged in the housing of the vane cell pump. At least one piston section () protrudes from the stator, whereby the piston axis thereof () extends in the direction of the periphery to the pivotable bearing ().

Vane cell pump having pistons guided in cylinder for adjustment of the stator

A vane machine comprises an inner rotor () and an outer rotor (). A plurality of radially extending vane elements () separates first vane chambers () from one another. The van elements (), with a radially inner end region (), are accommodated in the inner rotor () in a radially displaceable manner and, with a radially outer end region (), are accommodated in the outer rotor () in a pivotable manner. It is proposed that the radially inner end regions () of the vane elements () be accommodated in the inner rotor () at a fixed angle and that the outer rotor () comprise individual shoes () which are separate for each vane element () and in which the vane elements () are accommodated in a pivotable manner.

Vane machine, in particular vane pump

The disclosure relates to a vane cell pump having an inner rotor () and a plurality of vanes () which are secured in a pivotable manner to the external rotor () and which are displacably mounted in a radial manner in the inner rotor, essentially in radial slots (). The external rotor is formed on guide blocks (). Said guide blocks are guided, with the axial front sides thereof, on the guiding path and are guided along the internal circumferential surface of a stator (). The guiding path is arranged in a guide ring ().

Vane cell pump

Rotational pump with variable volume flow, comprising a pump housing having a suction connection and a pressure connection, an outer rotor with inner toothing which is rotatably disposed inside the housing, and an inner rotor with outer toothing which is eccentrically disposed in the outer rotor, and which can be driven by a drive shaft which is disposed in the pump housing parallel to the axis of the outer rotor, wherein a rotatable adjusting ring is provided coaxially to the drive shaft to change the volume flow in the pump housing, and in which the outer rotor is eccentrically and rotatably disposed, characterized in that a slider, which can change the size of at least one of the connections, is disposed, as viewed in the turning direction, between the pressure connection and the suction connection.

Variable volume flow internal gear pump

The invention relates to a method for adjusting a volumetric flow-variable positive displacement pump in an internal combustion engine involving the following method steps: operating the positive displacement pump; delivering the fluid to the consumption points in the internal combustion engine; determining at least one characteristic value of the internal combustion engine; forwarding this characteristic value as an actual value signal to a control device; comparing the actual value signal with a predetermined set-point value; preparing an actuating signal from the difference between the actual signal and the set-point value; feeding the actuating signal to an actuator; using the actuator to alter the volumetric flow of the positive displacement according to the actuating signal; repeating the method steps until the actual value signal is equal to the set-point value.

Growing community of inventors

Bodelshausen, Germany

Willi Schneider