序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
121 A GEAR PUMP HAVING THROUGH-SHAFT BEARING WEEPAGE CONTROL EP15796150 2015-04-15 EP3146214A4 2018-02-28 CRAIG JUSTIN A; ALEXANDER PHILIP TAYLOR
A pump includes a front plate, a gear plate and a rear plate. A drive shaft has a drive gear, an arbor has a driven gear engaged with the drive gear, and first and second bearings are disposed in the gear plate. The first and second bearings receive the drive shaft and the arbor. The rear plate has drain ports adjacent ends of the drive shaft and the arbor. The arbor has an opening such that media that passes between the first bearing and an outer surface of the arbor is directed to the second drain port via the opening. A drain bushing is positioned against the front plate, and includes an opening for the drive shaft. The drain bushing has a chamber and a radial port. When pumped media passes between the first bearing and the drive shaft it is directed to the chamber and out the radial port.
122 GEAR PUMP EP17171019.7 2017-05-15 EP3246573A1 2017-11-22 YOSHIDA, Naohito

In a gear pump, a gear chamber (4) is defined in a housing hole (2) of a housing (3). A pair of gears (7, 8) is housed in the gear chamber (4). The gears (7, 8) are rotatably supported at support holes (13, 14) of a pair of side plates (5, 6) via support shafts (15, 16). As viewed in an axial direction of the support shafts (15, 16) during rotation of the gears (7, 8), addendum circles (70, 80) of the gears (7, 8) displaced under a differential pressure between a low-pressure chamber (31) and a high-pressure chamber (41) form first contact points (P1) with respect to an inner peripheral surface (2a) that defines a housing hole (2). As viewed in the axial direction of the support shafts (15, 16) during rotation of the gears (7, 8), the first contact points (P1) are covered with the side plates (5, 6) displaced under the differential pressure.

123 POMPE À CAVITÉS PROGRESSIVES EP13730291.5 2013-05-28 EP2855938B1 2016-06-22 Bratu, Christian
124 MOTOR-PUMPEN-EINHEIT EP15158367.1 2015-03-10 EP2921702A2 2015-09-23 Pippes, Reinhard; Ketterer, Dominik

Die Erfindung betrifft eine Motor-Pumpen-Einheit mit einem mehrteiligen Gehäuse (25), die eine reversible Innenzahnradmaschine (21) und einen Elektromotor (22) mit einem Rotor (22.1) und einem Stator (22.2) umfasst, der über eine in dem Gehäuse (25) drehbar gelagerte Welle (23) mit der Innenzahnradmaschine (21) gekoppelt ist. Die Welle (23) erstreckt sich mit einem Wellenende von der Innenzahnradmaschine (21) weg axial durch den von der Welle (23) getragenen Rotor (22.1). Ein erster Anschlusskanal und ein zweiter Anschlusskanal münden in eine Arbeitskammer der Innenzahnradmaschine (21) und sind über in dem Gehäuse (25) angeordnete Rückschlagventile mit einer Leckagekanalschleife verbunden, die mit wenigstens einem mit der Arbeitskammer fluidverbundenen Leckagekanal fluidverbunden ist und die einen sich axial durch die Welle (23) erstreckenden Leckage-Wellenkanal und einen damit fluidverbundenen, sich axial durch den Rotor (22.1) erstreckenden Leckage-Rotorkanal und/oder einen zwischen dem Rotor (22.1) und dem Stator (22.2) ausgebildeten Leckage-Spaltkanal aufweist, der mit dem Leckage-Wellenkanal fluidverbunden ist.

125 POMPE A CAVITES PROGRESSIVES EP13730291.5 2013-05-28 EP2855938A1 2015-04-08 Bratu, Christian
The invention relates to a progressive cavity pump (6) comprising a casing (19), a helical stator (8) including a helical cylinder (10) and a helical rotor (7) capable of rotating inside said helical cylinder (10). The helical stator (8) also comprises at least one compensator (11) arranged in said casing (19), between the casing (19) and said helical cylinder (10); said helical cylinder (10) and said compensator (11) being deformable in a direction perpendicular to the longitudinal axis (X-X) of the casing.
126 Hydraulische Anordnung und Verfahren zu deren Steuerung EP14171931.0 2014-06-11 EP2818720A3 2015-03-04 Knoell, Reiner

Hydraulische Anordnung mit einer drehzahlverstellbaren Antriebsmaschine und einer von dieser antreibbaren, hydrostatischen Verdrängermaschine und Verfahren zur Steuerung einer derartigen hydraulischen Anordnung. Die Anordnung hat eine Temperaturerfassungseinrichtung, über die eine Druckmitteltemperatur einer inneren Leckage nahe am Leckagespalt erfassbar ist, so dass Abweichungen von zulässigen Betriebsbereichen der Anordnung oder der Verdrängermaschine in Abhängigkeit der erfassten Druckmitteltemperatur erkennbar oder ermittelbar sind.

127 Hydraulische Anordnung und Verfahren zu deren Steuerung EP14171931.0 2014-06-11 EP2818720A2 2014-12-31 Knoell, Reiner

Hydraulische Anordnung mit einer drehzahlverstellbaren Antriebsmaschine und einer von dieser antreibbaren, hydrostatischen Verdrängermaschine und Verfahren zur Steuerung einer derartigen hydraulischen Anordnung. Die Anordnung hat eine Temperaturerfassungseinrichtung, über die eine Druckmitteltemperatur einer inneren Leckage nahe am Leckagespalt erfassbar ist, so dass Abweichungen von zulässigen Betriebsbereichen der Anordnung oder der Verdrängermaschine in Abhängigkeit der erfassten Druckmitteltemperatur erkennbar oder ermittelbar sind.

128 VERDRÄNGERPUMPE MIT VARIABLEM FÖRDERVOLUMEN EP06764316.3 2006-08-08 EP1922487A1 2008-05-21 DRASKOVITS, Günter
An expeller pump with a variable delivery volume, in particular a single-stroke vane pump, for producing a stream of pressure medium to an actuator has a housing in which a rotor is mounted. The rotor is surrounded by a cam ring. Between the rotor and the cam ring, working chambers are formed which are bounded by rotor elements and whose volume can be adjusted by changing the eccentricity between the rotor and the cam ring. The cam ring is surrounded by an outer ring which is arranged in the housing and which keeps the cam ring freely moving. Two pressure chambers to which pressure can be applied in order to displace the cam ring via fluid connections are formed between the outer ring and the cam ring. The fluid connections are each formed from at least one bore in the housing and one corresponding bore in the outer ring. A relief bore (26) is provided in order to relieve a radial gap (27) between the housing (2) and the outer ring (3) of leakage fluids from the fluid connections leading to the pressure chambers.
129 Shaft supporting bush for an external gear machine EP04015861.0 2004-07-06 EP1614899A1 2006-01-11 Vivolo, Domenico

A shaft supporting bush (1) particularly for hydraulic pumps and motors, comprising a body (11), a cover (9), a base (10) and, in the body (11), a protruding shaft (3), an internal shaft (4) and two bushes (1) that are shaped substantially like a figure-of-eight and support the two shafts (3, 4) so that they can rotate in two holes (2). A groove (5) connects the two holes (2) that accommodate the shafts (3, 4) on one of the two flat surfaces of the bush (1) along the major axis thereof.

130 Pumpe EP03005717.8 1999-08-13 EP1323926A2 2003-07-02 Parsch, Willi; Webert, Dirk

Eine Pumpe zum Fördern eines Fluids, insbesondere Flügelzellenpumpe, mit einer in einem Gehäuse (2) untergebrachten Fördereinrichtung (1), einem im Gehäuse (2) ausgebildeten, sich in den Ansaugbereich (122) der Fördereinrichtung (1) erstreckenden Zufuhrkanal (113) für das Fluid und einer zum Fördern des Fluids dienenden Injektoreinrichtung (114), wobei die Injektoreinrichtung (114) unter hohem Druck stehendes Fluid in das aus dem Zufuhrkanal (113) in eine der Fördereinrichtung (1) vorgelagerte Strahlkammer (115) austretende Fluid einspritzt und dieses dadurch mitreisst bzw. beschleunigt, dadurch gekennzeichnet, dass der Zufuhrkanal (113) beidseits der Fördereinrichtung (1) mit jeweils einem Teilkanal (116) in eine Strahlkammer (115) mündet und dass die Injektoreinrichtung (114) zweiseitig abstrahlt, so dass in jede der beiden Strahlkammern (115) mindestens eine Strahldüse (117) der Injektoreinrichtung (114) gerichtet ist.

131 ABDICHTUNGSSYSTEM FÜR ZAHNRADPUMPEN FÜR HOCHVISKOSEN KAUTSCHUK, POLYMERE STOFFE UND SONSTIGE ZU FÖRDERNDE PRODUKTE EP99934226.4 1999-01-20 EP1062429A1 2000-12-27 HASSE, Hartmut; HASSE, Dirk
Sealing system for roller bearing mountings of gear pump rotors and similar rotor shafts to provide protection against the medium to be pumped in pumps and mixers, in addition to other sealing elements for rotor shafts in the form of sealing discs (3) which allow a defined leakage current to drain off in the envisaged leakage flow channels (2, 10, 4a, 7) so that the roller bearing mountings can be protected from the pressurized or pumped media.
132 Zahnradmaschine (Pumpe oder Motor) EP94101960.6 1994-02-09 EP0614011B1 1996-10-30 Bredenfeld, Guido, Dipl.-Ing.; Griese, Klaus, Dipl.-Ing.
133 Zahnradpumpe EP94113865.3 1994-09-05 EP0628725A2 1994-12-14 Blume, Peter; Stehr, Roger

Um bei fördermediumgeschmierten, gleitgelagerten Wellen das Schmiermedium mit geringstmöglichem Strömungswiderstand in den niederdruckseitigen Hauptförderstrom rückzuführen, wird im oder am Lagerkörper (7', 7'') mindestens ein Rückführkanal (71a-71d) eingearbeitet, derart, dass das Schmiermedium, axial vom Förderraum abgewandt aus dem Gleitlager austretend, mit minimalem Strömungsweg rückströmen kann. Dies ermöglicht, den Druck hinter dem Gleitlager minimal zu halten und trotzdem eine Schmiermedium-Rückströmung aufrechtzuerhalten, was wiederum, insbesondere bei nach aussen durchgeführten Wellen, die Anforderungen an deren Dichtungen gegen die Umgebung reduziert.

134 Rotary vane device for hydraulic fluid EP92309633.3 1992-10-21 EP0539188A1 1993-04-28 Niemiec, Albin J.; Cardinale, Louis J.

A hydraulic fluid pressure energy translating device of the sliding vane type comprising a cartridge (12) including a cam ring (13) including an internal contour, a rotor (25) having a plurality vanes (36) rotatable therewith and slidable relative thereto in slots (35) in the rotor with one end of each vane engaging the internal contour. The cartridge (12) includes a rotor (25) and has an internal contour cooperating to define one or more pumping chambers between the periphery of the rotor and the cam contour through which the vanes pass carrying fluid from an inlet port (19) to an outlet port (22). Two pressure chambers are formed for each vane and each vane has two surfaces one in each chamber, both being effective under pressure in the respective chambers to urge the vanes into engagement with the cam. The cartridge further includes support plates (14,15). One of the support plates supports an annular shaft seal (41) that engages a shaft rotatably mounted in the housing and supporting the rotor such that when the cartridge is removed from the housing, the shaft seal (41) is simultaneously removed. The housing further includes a simple pressure relief valve (50) positioned to regulate pressure on the other end of the housing into an area of lower fluid pressure.

135 VERDRÄNGERMASCHINE, INSBESONDERE -PUMPE EP86901030.6 1986-02-21 EP0214164B1 1990-05-23 GÜTTINGER, Kurt
The machine comprises two plate-like supports (9, 12) each provided with a crown of displacement blades (10), respectively displacement chambers (11), engaged into each other, and displaceable into a relative circular translation motion. The drive is implemented by a gear (7-9) at the center of the supports (9, 12), which exerts a force (FN) on one of the supports (9) at a radially displaceable position, said force presenting a radial component (FR) and a tangential component (FT). The direction of the force and the arrangement of the chambers (11) are so selected as to provide for a predetermined static position of the blades (10) in the chambers (11) independently of the wear. Optimum operation conditions are thus obtained with simple design and fabrication. For producing said pump, the plate-like supports are lapped pair-wise when they are in the state of blanks in conditions similar to the operation conditions and are then mounted in the machine .
136 GEAR PUMP ARRANGEMENT PCT/EP2008056114 2008-05-19 WO2009003757A3 2009-02-19 SCHEPP RENE; ALAZE NORBERT
The invention relates to a pump arrangement for a hydraulic unit, particularly a vehicle brake system, having a first internal gear pump (2) with a first ring gear (20), a first pinion gear (23), and a first sickle-shaped segment piece (24), a second internal gear pump (3) with a second ring gear (30), a second pinion gear (33), and a second sickle-shaped segment piece (34), and a drive gear (4). The first ring gear (20) has an outer toothing (21), and the second ring gear (30) has an outer toothing (31). The first and second internal gear pumps (2, 3) are arranged next to each other in such a manner that the outer toothing (21) of the first ring gear (20) cogs with the outer toothing (31) of the second ring gear (30), wherein the drive gear (4) cogs with the outer toothing (21) of the first ring gear (20), and the drive gear (4) is connected to a drive shaft (8) in order to drive the drive gear (4). A shaft seal (9) is arranged on the drive shaft (8) for a seal against the external environment.
137 GEROTOR PUMP FOR LIQUID MEDIA PCT/EP9706902 1997-12-10 WO9826181A3 1998-11-05 MOKESCH LUDWIG
The invention relates to a gerotor pump for aqueous viscous media which has preferably a two-piece pump housing consisting of pump chamber housing (3) and connection cover (29), and has, in the pump chamber housing, a pump chamber in the form of a circular cylindrical cavity (5) with a gerotor running carriage (9) accommodated therein. The gerotor running carriage (9) is rotationally driven by the motor shaft (11) of a driving motor (13) which is mounted immediately on the pump housing. The motor shaft (11) is encircled in the pump chamber housing (3) by a groove (68) which is directly connected to a cavity (70) in the suction area of the pump chamber (5), so as to be able to introduce leakage liquid via the groove (68) into the suction area of the chamber (5). In the connection cover (29) there is a channel (49) connecting the suction side with the delivery side, with a valve inside which, depending on the pressure on the delivery side, diverts excess carrying capacity to the suction side. The valve can alternatively be designed as a carrying capacity control valve.
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