Positive displacement pump having axial movement coupling and rotational decoupling

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.

PLASTIC ROTOR FOR A VACUUM PUMP

A rotor for a vane cell pump—in particular, for a vacuum pump—with a base body that is made of plastic and can be driven by rotation, and that rotates about an axis of rotation during operation, wherein the base body comprises a guiding section for slidably receiving a pump vane and wherein the base body is flanked in the direction of the axis of rotation by a first bearing surface and a second bearing surface, wherein the second bearing surface comprises bearing sections that are at a distance from one another and that lie on a circular path that is arranged concentrically to the axis of rotation. 1101214121612142426265014. A rotor () for a vane cell pump—in particular , for a vacuum pump—with a base body () that is made of plastic and can be driven by rotation , and that rotates about an axis of rotation () during operation , wherein the base body () comprises a guiding section () for slidably receiving a pump vane and wherein the base body () is flanked in the direction of the axis of rotation () by a first bearing surface () and a second bearing surface () , wherein the second bearing surface () comprises bearing sections () that are at a distance from one another and that lie on a circular path that is arranged concentrically to the axis of rotation ().2101264662614. The rotor () according to claim 1 , wherein the base body () comprises recesses ( claim 1 , ) that start from the second bearing surface () and extend along the axis of rotation ().310265450. The rotor () according to claim 1 , wherein the second bearing surface () comprises two circular arc sections () that are radially opposite each other and that each comprise a bearing section () radially at the outside.4102654606250. The rotor () according to claim 3 , wherein the second bearing surface () comprises between the circular arc sections () at least one—preferably claim 3 , two—bar sections ( claim 3 , ) that comprise a bearing section () at their free end.51026. The rotor () according to claim 1 , ...

Pumping device for a transmission and transmission comprising such a pumping device

In order to enable efficient operation and reliable heat dissipation in a transmission, a pumping device (10) for lowering the internal pressure in a transmission (100) is equipped with a suction line (18), which leads from a suction point (20) on a connection side (14) to a discharge point (22) on a discharge side (16), a pump (24) for generating negative pressure at the suction point (20), a pump drive (26) for driving the pump (24), and an oil separator (28) connected upstream or downstream of the pump (24) in the suction line (18) that separates oil contained in the suction flow and returns it via a return line (30) to the connection side (14), and a check valve (34) connected downstream, preferably directly downstream, of the pump (24). A transmission (100) with such a pumping device (10), a use of a pumping device (10) and a method for reducing power losses in a transmission (100) are disclosed.

VANE FOR A VANE CELL PUMP AND VANE CELL PUMP

A vane for a vane cell vacuum pump. The vane can be rotated about an axis of rotation by a rotor in a pump chamber and guided in the longitudinal direction in the rotor, with an upper side and a lower side to abut against the bottom and the ceiling of the pump chamber, with a rear side opposite a front side to limit the pressure chambers, with at least one face to slidably abut against an inside wall of the pump chamber on the casing side. The vane comprises a base body of a first plastic material and a vane end molded of a second plastic material to the base body forming the face. The base body comprises a mounting section around which the vane end is formed. The mounting section comprises at least one recess transverse to the front side and/or the rear side. 1106010666466. A vane () for a vane cell pump ()—in particular , for a vacuum pump—wherein the vane () can be rotated about an axis of rotation by a rotor () in a pump chamber () and guided in the longitudinal direction in the rotor () ,{'b': 12', '14', '64, 'with an upper side () and a lower side to abut against the bottom and the ceiling of the pump chamber (),'}{'b': 16', '18', '16, 'with a front side () and a rear side () opposite the front side () to limit the pressure chambers,'}{'b': 20', '68', '64, 'with at least one face () to slidably abut against an inside wall () of the pump chamber () on the casing side,'}{'b': 10', '22', '24', '22', '20, 'wherein the vane () comprises a base body () made of a first plastic material and a vane end () that is molded to the base body (), forms the face (), and consists of a second plastic material, and'}{'b': 22', '26', '24, 'wherein the base body () comprises a mounting section () around which the vane end () is formed,'}{'b': 26', '36', '38', '40', '42', '16', '18, 'wherein the mounting section () comprises at least one recess (, , , ) that runs in a direction transverse to the front side and/or the rear side (, ).'}210363826. The vane () according to claim 1 , ...

Vacuum pump with separate oil outlet with relief valve

A vacuum pump having a housing which limits a working space and having a rotor, rotatably mounted in the housing about a rotor axis, the rotor guides a vane being movably mounted in the radial direction, the vane has a transverse extent, and the vane divides the working space into a suction side having a suction inlet and a pressure side having a pressure outlet, the housing has at least one oil outlet, the oil outlet is closed by a relief valve, the relief valve assumes an open position, when a limit pressure lying above a nominal pressure is exceeded in the working space, and the transverse extent of the vane is large enough that when the vane passes the oil outlet, the oil outlet is closed by the vane, so that there is no fluid connection between the suction side and the pressure side over the oil outlet.

VACUUM 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. 19-. (canceled)10. A vacuum pump , comprising:a pump housing having an intake chamber;an intake check valve arranged in a pump housing opening which feeds into the intake chamber, said intake check valve having a pot-shaped valve housing formed by a housing bottom and a housing jacket which is connectable to the housing jacket; anda snap-on connection to connect the housing bottom onto the housing jacket.11. The vacuum pump of claim 10 , constructed in the form of a vane pump.12. The vacuum pump of claim 10 , wherein the pump housing opening communicates with the atmosphere or feeds into an external vacuum chamber.13. The vacuum pump of claim 10 , wherein the snap-on connection for connecting the housing bottom to the housing jacket is detachable.14. The vacuum pump of claim 10 , wherein the housing jacket has a free end provided with a flange and receives the housing bottom.15. The vacuum pump of claim 14 , wherein the flange is configured to extend all-round.16. The vacuum pump of claim 14 , wherein the housing bottom has an end in facing relationship to the housing jacket claim 14 , said end of the housing bottom having at least two fingers which interact with the flange to realize the snap-on connection.17. The vacuum pump of claim 16 , wherein the fingers engage behind the flange.18. The vacuum pump of claim 16 , wherein the fingers protrude ...

OIL SUPPLY DEVICE FOR A VACUUM PUMP OF AN INTERNAL COMBUSTION ENGINE

An oil supply device for a vacuum pump of an internal combustion engine, in particular of a car, including an oil feed line via which the vacuum pump can be supplied with oil for lubricating the vacuum pump. The oil feed line includes a valve connected to the oil feed line in an oil-conducting manner, which valve has a piston that is accommodated in a valve interior of the valve and can move at least between a supply position in which it allows a supply of oil to the vacuum pump and a blocking position in which it prevents the supply of oil to the vacuum pump, and has a spring element, by means of which a spring force that holds the piston in the blocking position can be applied to the piston when the internal combustion engine is at rest.

Vane for a vane cell pump and vane cell pump

A vane for a vane cell vacuum pump. The vane can be rotated about an axis of rotation by a rotor in a pump chamber and guided in the longitudinal direction in the rotor, with an upper side and a lower side to abut against the bottom and the ceiling of the pump chamber, with a rear side opposite a front side to limit the pressure chambers, with at least one face to slidably abut against an inside wall of the pump chamber on the casing side. The vane comprises a base body of a first plastic material and a vane end molded of a second plastic material to the base body forming the face. The base body comprises a mounting section around which the vane end is formed. The mounting section comprises at least one recess transverse to the front side and/or the rear side.

ROTARY VANE PUMP FOR GENERATING A VACUUM

A rotary vane pump for generating a vacuum, having an electric drive with a motor stator and a motor rotor, wherein the motor stator and the motor rotor radially encompass the pump housing. The motor stator is non-rotatably disposed around or on the pump housing. The motor rotor is disposed on the side of the motor stator facing away from the pump housing, such that an overall housing is provided that accommodates the electric drive and the pump housing, and the overall housing has a housing floor and a housing shell, wherein the housing floor, together with the pump housing delimits the pump chamber.

Vacuum 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.

Plastic Rotor for a vacuum pump

A rotor for a vane cell pump—in particular, for a vacuum pump—with a base body that is made of plastic and can be driven by rotation, and that rotates about an axis of rotation during operation, wherein the base body comprises a guiding section for slidably receiving a pump vane and wherein the base body is flanked in the direction of the axis of rotation by a first bearing surface and a second bearing surface, wherein the second bearing surface comprises bearing sections that are at a distance from one another and that lie on a circular path that is arranged concentrically to the axis of rotation.

Postive displacement pump

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.

VACUUM PUMP

A vacuum pump having a housing which limits a working space and having a rotor, rotatably mounted in the housing about a rotor axis, the rotor guides a vane being movably mounted in the radial direction, the vane has a transverse extent, and the vane divides the working space into a suction side having a suction inlet and a pressure side having a pressure outlet, the housing has at least one oil outlet, the oil outlet is closed by a relief valve, the relief valve assumes an open position, when a limit pressure lying above a nominal pressure is exceeded in the working space, and the transverse extent of the vane is large enough that when the vane passes the oil outlet, the oil outlet is closed by the vane, so that there is no fluid connection between the suction side and the pressure side over the oil outlet. 1. A vacuum pump , comprising:a housing which limits a working space, and a rotor, which is rotatably mounted in the housing about a rotor axis, wherein the rotor guides at least one vane being movably mounted in a radial direction, wherein the vane has a transverse extent, and wherein the vane divides the working space into a suction side having a suction inlet and a pressure side having a pressure outlet, the housing further comprising at least one oil outlet different from the pressure outlet, wherein the oil outlet is closed by a relief valve, wherein the relief valve assumes an open position when a limit pressure lying above a nominal pressure is exceeded in the working space, and wherein the transverse extent of the vane is large enough that when the vane passes the oil outlet, the oil outlet is closed by the vane, so that there is no fluid connection between the suction side and the pressure side over the oil outlet.2. The vacuum pump according to claim 1 , wherein the rotor and the vane divide the working space in the neutral pump position into a suction side having a suction inlet claim 1 , a pressure side with a pressure outlet claim 1 , and a pump ...

PUMPING DEVICE FOR A TRANSMISSION AND TRANSMISSION COMPRISING SUCH A PUMPING DEVICE

In order to enable efficient operation and reliable heat dissipation in a transmission, a pumping device () for lowering the internal pressure in a transmission () is equipped with a suction line (), which leads from a suction point () on a connection side () to a discharge point () on a discharge side (), a pump () for generating negative pressure at the suction point (), a pump drive () for driving the pump (), and an oil separator () connected upstream or downstream of the pump () in the suction line () that separates oil contained in the suction flow and returns it via a return line () to the connection side (), and a check valve () connected downstream, preferably directly downstream, of the pump (). 110100. A pumping device () for lowering the internal pressure in a transmission () , comprising:{'b': 18', '20', '14', '22', '16, 'a suction line () which leads from a suction point () on a connection side () to a discharge point () on a discharge side (),'}{'b': 24', '20', '26', '24, 'a pump () for generating negative pressure at the suction point (), a pump drive () for driving the pump (),'}{'b': 28', '24', '18', '30', '14, 'an oil separator () connected upstream or downstream of the pump () in the suction line () which separates oil contained in the suction flow and returns it via a return line () to the connection side (), and'}{'b': 34', '24, 'a check valve () connected downstream, including directly downstream, of the pump ().'}21024262626. The pumping device () according to claim 1 , characterized in that the pump () is configured as a diaphragm pump and/or that the pump drive () is configured as an electrical drive () claim 1 , including as an electric motor ().3102828. The pumping device () according to claim 1 , characterized in that the oil separator () is configured as a semipermeable membrane or has a semipermeable membrane or that the oil separator () is designed as a porous claim 1 , air-permeable body.41030484828. The pumping device () according ...

vacuum pump

Die Erfindung betrifft eine Vakuumpumpe, insbesondere eine Flügelzellenpumpe, mit einem Pumpengehause, in welchem ein Saugraum vorgesehen ist, und einem in den Saugraum einmündenden Pumpengehäusedurchbruch, wobei im Pumpengehausedurchbruch ein ins Freie oder in einen externen Unterdruckraum mundendes Saug-Rückschlagventil angeordnet ist, welches in einem topförmigen Ventilgehäuse untergebracht ist und das topfförmige Ventilgehäuse einen Gehäuseboden und einen Gehäusemantel aufweist, wobei der Gehauseboden mit dem Gehäusemantel verbindbar ist.

A single-blade

Die Erfindung betrifft eine Einflügelvakuumpumpe mit einem topfförmigen Gehäuse, einem exzentrisch im Gehäuse drehbar gelagerten Rotor, einem im Rotor orthogonal zur Drehachse verschieblich gelagerten Flügel und einem den Flügel aufnehmenden Arbeitsraum mit einer Innenumfangsfläche, an welcher die beiden einander gegenüberliegenden Dichtkanten des Flügels anliegen, wobei der Flügel den Arbeitsraum in einen Saugraum und einen Druckraum unterteilt, wobei das der Innenumfangsfläche zugewandte Ende des Flügels auf der dem Druckraum zugewandten Seite einen abgeflachten Abschnitt aufweist. The invention relates to a single-vane vacuum pump with a pot-shaped housing, a rotor mounted eccentrically in the housing rotatably, a vane mounted in the rotor orthogonally to the axis of rotation and a working space receiving the vane with an inner circumferential surface on which the two opposing sealing edges of the vane rest, the Wing divides the working space into a suction space and a pressure space, the end of the wing facing the inner peripheral surface having a flattened section on the side facing the pressure space.

Vacuum pump

The invention relates to a vacuum pump, in particular a vane pump, having a pump housing in which a suction chamber is provided, and having a pump housing aperture which opens into the suction chamber, wherein in the pump housing aperture there is arranged a suction check valve which opens into the atmosphere or into an external vacuum chamber, which suction check valve is accommodated in a pot-shaped valve housing, and the pot-shaped valve housing has a housing base and a housing shell, wherein the housing base can be connected to the housing shell and the housing base can be clipped onto the housing shell.

Verdrängerpumpe

Die Erfindung betrifft eine Verdrängerpumpe mit einem topfförmigen Gehäuse, einem im Gehäuse drehbar gelagerten Rotor und wenigstens einem im Rotor verschieblich geführten Flügel, dessen Flügelspitze an der Innenumfangswand des Gehäuses anliegt und den Innenraum in Kammern unterteilt, wobei eine die Verschiebung des Flügels im Rotor hemmende oder bremsende Arretierung vorgesehen ist.

Verdrängerpumpe

Rotorpumpe und flügel für eine rotorpumpe

Kollektorloser Gleichstrommotor

Rotorpumpe und flügel für eine rotorpumpe

Die Erfindung betrifft einen Flügel (18) für eine Rotorpumpe (2) mit einem Pumpengehäuse und. einem darin drehbar gelagerten Rotor, wobei der Flügel (18) verschieblich im Rotor gelagert ist und mit seiner aus dem Rotor herausragenden, an einem Flügelkörper (26) vorgesehenen Flügelspitze (22) an einer Innenumf angsf lache des Pumpengehäuses anliegt, wobei die Flügelspitze ein separates Bauteil ist und die Flügelspitze und der Flügelkörper, insbesondere in Längsrichtung des Flügelkörpers gesehen, formschlüssig miteinander verbunden sind. Die Erfindung betrifft außerdem eine Rotorpumpe mit einem derartigen Flügel.