| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | PUMPENANORDNUNG | EP06805431.1 | 2006-10-17 | EP1943423A1 | 2008-07-16 | SCHULZ-ANDRES, Heiko; KAMARYS, Dirk; RISCHE, Olaf |
| The invention relates to a pump arrangement, in particular for lubricating oil pumps for internal combustion engines, having at least two pump devices which are arranged on a common driveshaft but can feed independently of one another, wherein the first pump is always connected to the driveshaft so as to be driven in rotation, and wherein the second pump (1) can be connected to the shaft (2) or to the rotor of the first pump by means of a rotary drive connection (12) which can be actuated as a function of temperature. | ||||||
| 162 | GEAR MACHINE FOR COMBINING TWO FLUID STREAMS AND ASSOCIATED METHOD | EP06784427.4 | 2006-05-17 | EP1888919A2 | 2008-02-20 | ALLARD, Philip; BENHAM, Stanley, D. |
| Methods, devices, and systems are disclosed for combining fluids of different pressures and flow rates in, for example, gas gathering systems, gas wells, and other areas in which independently powered compressors are not desired. Methods, devices, and systems for turning a shaft are also provided, as are methods, devices, and systems for dropping pressure in a gas line. A rotor is also provided. | ||||||
| 163 | EXTRUDER WITH GEAR PUMP | EP04807741.6 | 2004-12-24 | EP1731764A1 | 2006-12-13 | Ogawa, Yuichiro, c/o Bridgestone Corporation |
An extruder system includes an extruder for axially extruding a rubber or plastic material in a barrel by rotation of an extrusion screw arranged in the barrel, and a gear pump driven by a rotational force for rotating the extrusion screw so that a predetermined amount of the extruded material is discharged by engagement of gears. The gear pump includes a driving pinion arranged coaxially to the extrusion screw and fixedly secured to a tip end of the extrusion screw, a driven pinion engaged with, and driven by the driving pinion and rotatable about a rotational shaft that is parallel to a rotational shaft of the extrusion screw, and a gear casing accommodating these pinions therein. The gear casing includes side plates arranged on both axial sides of the pinions and extending perpendicularly to the rotational shaft of the extrusion screw, and a casing body arranged between the side plates and enclosing a space on a radially outer side of the pinions. The rotational shaft of the driven pinion is fixedly secured to the side plates. The side plates includes a suction side plate situated adjacent to the extrusion screw and a discharge side plate situated remote from the extrusion screw. The suction side plate has a suction port arranged opposite to that side of engagement region between the driving pinion and the driven pinion, where their teeth are being disengaged from each other. The discharge side plate has a discharge port arranged opposite to that side of engagement region between the driving pinion and the driven pinion, where their teeth are being engaged from each other. The suction port and the discharge port are maintained out of an axial communication with each other by the pinions. |
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| 164 | PUMP UNIT | EP03730748.5 | 2003-06-02 | EP1533525A1 | 2005-05-25 | HORIUCHI, Hitoshi, Daikin Industries, Ltd.; OCHI, Yoshiyuki, Daikin Industries, Ltd.; NAKATSUJI, Jun, Daikin Industries, Ltd. |
A first pump (1) of small capacity and a second pump (2) of large capacity are connected directly with each other and are driven by a variable-speed motor (3) the rotational speed of which is controlled by a control device (4). In a first mode, a first discharge line (5) of the first pump and a second discharge line (8) of the second pump are disconnected with each other, making the first pump (1) unloaded, in which state a constant-horsepower operation is performed, where the discharge fluid is brought into a high pressure by relatively small torque. In a second mode, the first discharge line (5) and the second discharge line (8) are connected with each other by a switching valve (6), in which state a constant-horsepower operation is performed, where a high flow rate of discharge fluid is discharged at relatively low rotational speed. |
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| 165 | Multistage gear pump | EP04001344.3 | 2004-01-22 | EP1441126A3 | 2004-09-29 | Suzuki, Shigeru; Fujii, Toshiro |
A multistage gear pump for pressurizing fluid includes a housing, a drive shaft and a gear assembly. The drive shaft is rotatably supported in the housing. The gear assembly is disposed in the housing. The gear assembly includes at least first and second gear trains. Each train has a pair of drive and driven gears that are engaged with each other. The drive gear is provided on the drive shaft and followed by the driven gear. The first gear train and the second gear train are arranged so that fluid sequentially passes therethrough as the drive shaft rotates. A theoretical discharge capacity of the first gear train is larger than that of the second gear train. |
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| 166 | HYDRAULIC MOTOR SYSTEM | EP02749855.9 | 2002-07-09 | EP1407145A1 | 2004-04-14 | BUSCHUR, Jeffrey, J.; HILL, John, S.; MIENTUS, Michael, J. |
| An improved hydraulic motor system, suitable for driving an automotive cooling fan or the like. The system is driven by grade gerotor set and and idle gerotor set which are stacked between a center plate and against a rear wall of a cylindrical cavity in a front face of a manifold. A fluid-tight chamber is established by securing an end frame can around the stacked gerotor sets and against the perimeter of the manifold cavity. Tightness of the seal is controlled by positioning a resilient cover plate against the end frame can from a position opposite the manifold, and adjustably clamping the resilient cover against the manifold until the resilient cover has undergone a predetermined amount of elastic deformation. | ||||||
| 167 | MULTIPLE PUMP CONTROL ARRANGEMENT | EP98918928 | 1998-05-01 | EP0991865A4 | 2002-07-24 | KILLION DAVID L |
| A dual pumping element fluid system for an engine or other system which reduces the driving power consumption by unloading one pumping element (38) through the use of recirculation when a fluid pressure target value is achieved. A cross-over port (94) fluid system prevents cavitation of the unloaded pump. A pressure-activated flow control valve mechanism (54) is utilized to open and close the conduits from the secondary pump. The fluid system works in conjunction with an engine balance shaft system to control gear rattle at low speeds without adding undue gear loads at high speeds. | ||||||
| 168 | Vorrichtung zum Fördern von Flüssigkeiten, insbesondere Kraftstoff | EP01124840.8 | 2001-10-18 | EP1211419A2 | 2002-06-05 | Bodzak, Stanislaw |
Die Vorrichtung weist eine erste Zahnradförderpumpe (30) auf, die in einer Pumpenkammer (40) ein Paar miteinander kämmender Zahnräder (41,43) aufweist, von denen ein Zahnrad (41) durch eine Antriebswelle (38) rotierend angetrieben wird. In die Pumpenkammer (40) mündet auf einer Saugseite (48) ein Einlaß (84) und auf einer Druckseite (49) ein Auslaß (86). In Richtung der Drehachsen (42,45) der Zahnräder (41,43) der ersten Zahnradförderpumpe (30) versetzt ist eine weitere Zahnradförderpumpe (60) angeordnet, die in einer Pumpenkammer (62) ein Paar miteinander kämmender Zahnräder (64,68) aufweist. Ein Zahnrad (64) der weiteren Zahnradförderpumpe (60) ist über eine Kupplungsvorrichtung (66) mit der Antriebswelle (38) drehschlüssig koppelbar. Die Kupplungsvorrichtung (66) wird durch den auf der Druckseite (49) der ersten Zahnradförderpumpe (30) vorhandenen Druck derart gesteuert, daß durch diese bei geringem Druck das Zahnrad (64) mit der Antriebswelle (38) drehschlüssig gekoppelt ist und bei höherem Druck von der Antriebswelle (38) getrennt ist. Dadurch wird bei geringem Druck durch beide Zahnradförderpumpen (30,60) gefördert und bei höherem Druck nur durch die erste Zahnradförderpumpe (30). |
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| 169 | Hydraulic motor having multiple speed ratio capability | EP01119542.7 | 2001-08-14 | EP1184573A2 | 2002-03-06 | Heckel, John Boyd; Bernstrom, Marvin Lloyd |
Multiple speed ratio gerotor motor having first (13) and second (19) gerotor gear sets as displacement mechanisms, and a commutating valve member (43). In one embodiment a selector valve section (15) is disposed between the gerotor gear sets. In low speed mode, fluid flows from the commutating valve member through first volume chambers (39), the selector valve section, and second volume chambers (66). In high speed mode, flow out of first volume chambers is blocked by the selector valve section, and fluid in second volume chambers flows through the selector valve section to case drain region (106). In another embodiment, the selector valve section is disposed between commutating valve member and first gerotor gear set, and can permit, or block, fluid communication to either gerotor gear set separately. In either embodiment, the relative speed ratios are determined by the relative axial lengths of the gerotor gear sets, thus providing great flexibility in choice of speed ratios. |
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| 170 | Positive displacement pump systems | EP99309754.2 | 1999-12-03 | EP1008754A2 | 2000-06-14 | Thornelow, Alec; Brighton, Derek Keith; Williamson, Matthew |
There is provided a positive displacement pump system having first and second delivery passages for pumped fluid and a main delivery passage receiving flow from the first delivery passage and, via a non return valve, from the second delivery passage. A control valve is provided to apportion flow from the first and second delivery passage to overspill porting. A control orifice is provided in the main discharge passage to receive the combined flows and the control orifice is of variable size. |
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| 171 | TWO SPEED GEROTOR MOTOR WITH CENTRALLY LOCATED VALVE AND COMMUTATOR | EP92900158.4 | 1991-10-31 | EP0555374B1 | 1998-01-14 | BREWER, Darrell, W. |
| 172 | Dual capacity fluid pump | EP90309001.7 | 1990-08-16 | EP0426278B1 | 1994-11-30 | Haley, William J.; Swanson, Glenn E. |
| 173 | EP0543809A4 - | EP90912195 | 1990-08-17 | EP0543809A4 | 1994-01-12 | KUNTA, NORBERT JOSEF |
| A hydraulic power system comprising a stator (1) having a non-circular cavity with inner wall (2) and a rotor (3) rotatably mounted in the cavity. The rotor (3) has a plurality of radially extending slots formed in its circumference and a vane (18) slidably mounted in each of the slots. Guide means (11) fixed relative to the stator (1) is arranged to guide the vanes (18) in and out of the rotor (3) as the rotor (3) rotates to keep the outer edge of the vanes (18) in sliding contact with the inner wall (2). Additionally, the system discloses a plurality of flow passages in the stator connected via a mode variation valve for series or parallel operation of the system, and a selector valve for changing the direction of operation which may be coupled to a by-pass valve for reducing the output of the system. | ||||||
| 174 | GUIDED VANES HYDRAULIC POWER SYSTEM | EP90912195.0 | 1990-08-17 | EP0543809A1 | 1993-06-02 | KUNTA, Norbert Josef |
| Un système hydraulique comprenant un stator (1) possédant une cavité non circulaire pourvue d'une paroi intérieure (2) et un rotor (3) monté rotatif dans la cavité. Le rotor (3) possède une pluralité de fentes s'étendant en direction radiale et situées dans sa circonférence ainsi qu'une pale (18) montée coulissante dans chacune des fentes. Un moyen de guidage (11), fixe par rapport au stator (1), est conçu pour guider les pales (18), pour les faire entrer dans le rotor et les en faire sortir, simultanément à la rotation dudit rotor (3), pour maintenir un contact coulissant entre le rebord extérieur des pales (18) et la paroi intérieure (2). De plus, le système décrit une pluralité de passages d'écoulement situés dans le stator et reliés par l'intermédiaire d'une soupape à fonctionnement variable pour un fonctionnement du système en parallèle ou en série, ainsi qu'une soupape de sélection servant à modifier le sens du fonctionnement et pouvant se connecter à une soupape de dérivation pour réduire la puissance du système. | ||||||
| 175 | Dual capacity fluid pump | EP91304390.7 | 1991-05-16 | EP0478107A3 | 1992-06-10 | Swanson, Glenn E.; Haley, William J. |
A dual capacity pump having at least two gear pump stages with a common fluid inlet passage (30), each pump stage having a discharge port (34,36), the discharge port for one stage communicating with a fluid pressure load through a flow delivery passage (38) and the discharge port for the other stage communicating with the flow delivery passage (38) through a one-way flow valve (42), and flow control valve means (46) responsive to an operating variable for connecting the discharge side of the other stage (36) to the common fluid inlet passage (30) during operation in a first operating range of low driving speeds for the pump and to said flow delivery passage (38) through the one-way flow valve (42) during operation in a calibrated range of values for the operating variable. |
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| 176 | PLURAL HYDRAULIC PUMP SYSTEM WITH AUTOMATIC DISPLACEMENT CONTROL | EP84902859.2 | 1984-06-29 | EP0149667B1 | 1989-12-27 | NORTON, Peter |
| A pump system which operates at high efficiency in either a high volume, low pressure mode or a low volume, high pressure mode. First and second internal gear pumps (122, 124) are driven by a common drive shaft (134). The first pump (122) has a smaller displacement than the second pump (124) and both pumps deliver pressurized fluid to a common discharge passage (154). An unloading valve (128) is operative to dump the output of the second pump in response to fluid pressure in the discharge passage so that it delivers fluid to the load device (14) only when the pressure is below a predetermined value. The unloading valve (128) also performs the function of a low capacity accumulator. A check valve (178) is provided to prevent back flow in the outlet (176) of the second pump (124). | ||||||
| 177 | TWO-SPEED GEROTOR MOTOR | EP83307573 | 1983-12-13 | EP0116217B1 | 1986-12-30 | SWEDBERG, NILS EINAR |
| 178 | Dispositif et procédé de détection de la garde à la cavitation d'une pompe volumétrique | EP83401984.6 | 1983-10-12 | EP0107572B1 | 1986-09-10 | Mouton, Pierre Charles |
| 179 | PLURAL HYDRAULIC PUMP SYSTEM WITH AUTOMATIC DISPLACEMENT CONTROL | EP84902859.0 | 1984-06-29 | EP0149667A1 | 1985-07-31 | NORTON, Peter |
| Système de pompe travaillant avec un rendement élevé soit selon un mode à volume élevé et basse pression, soit selon un mode à volume faible et haute pression. La première et la seconde pompes à engrenage intérieur (122, 124) sont entraînées par un arbre d'entraînement commun (134). La cylindrée de la première pompe (122) est inférieure à celle de la seconde pompe (124); les deux pompes délivrent un fluide sous pression à un passage d'évacuation commun (154). Une soupape de décharge (128) fonctionne pour vider le débit de la seconde pompe en fonction de la pression de fluide dans le passage d'évacuation de manière à n'alimenter en fluide le dispositif de charge (14) que lorsque la pression est inférieure à une valeur prédéterminée. La soupape de décharge (128) a également la fonction d'un accumulateur de faible capacité. Une vanne de contrôle (178) est prévue pour empêcher tout refoulement dans la sortie (176) de la seconde pompe (124). | ||||||
| 180 | Dispositif hydraulique automatique de réglage de débit et de protection contre les surpressions pour pompes hydrauliques à débit constant | EP84400460.6 | 1984-03-07 | EP0122171A1 | 1984-10-17 | |
A chaque pompe individuelle est prévue une section de réglage de débit (39), (40) et (41 les différentes sections de réglage étant assemblées dans un montage commun dans lequel:
Utilisation notamment dans l'alimentation en huile des servo-directions et des dispositifs de relevage hydrauliques des tracteurs agricoles. |
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