| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Method for producing a vane for a rotary vane pump, vane for a rotary vane pump and rotary vane pump | US14762368 | 2014-01-24 | US09855604B2 | 2018-01-02 | Arno Steiner; Alessandro De Nicolò; Philipp Neunhäuserer; Thomas Oberleiter |
| The invention relates to a method for producing a net-shape vane for a rotary vane pump, which vane is preferably open-pored and consists of a metal sinter material. The vane has at least one first front face and one second front face which is preferably oriented parallel to the first front face, and a first lateral surface and second lateral surface that is oriented parallel to the first lateral surface. Furthermore, the vane comprises a first contour surface and a second contour surface. The method for producing the vane comprises at least the following steps: pressing (20) a powder mixture to a green body by means of a powder press, sintering (21) the green body inside a sintering furnace to a sintering element having an austenitic structure, quenching the sintering element inside the sintering furnace to a temperature below the martensitic start temperature for hardening (22), tempering (23) the sintering element preferably inside the sintering furnace, removing (24) the sintering element as net-shape vane, preferably as removal from the sintering furnace. After removing the sintering element, deburring (25) can optionally be made. The invention further relates to a vane and a rotary vane pump. | ||||||
| 142 | Positive displacement gear pump | US14783002 | 2014-09-23 | US09752580B2 | 2017-09-05 | Franco Tommasini |
| A positive displacement pump has a casing with a central body and two closing lids, the central body being provided with two cylindrical communicating chambers, one suction pipe and one discharge pipe, and two rotors revolvingly mounted in the chambers of the central body and supported by shafts revolvingly mounted in the closing lids. The two rotors include a male rotor having only protuberances, not cavities, and a female rotor having only cavities, not teeth or protuberances. | ||||||
| 143 | System, pump and method of vacuum generation for applications to motor vehicles | US14362941 | 2012-11-22 | US09739269B2 | 2017-08-22 | Volker Leifert; Leonardo Cadeddu; Guido Zardo |
| A vacuum generation system, in particular for applications to hybrid-drive motor vehicles, comprises a vacuum pump (10) arranged to be independently driven by either an internal combustion engine (1 1) or an electric motor (12) depending on the vacuum conditions in utilizing devices (15) and the operating conditions of the internal combustion engine. A pump for use in such a system and a method of vacuum generation by using the system are also provided. | ||||||
| 144 | Gear pump bearings with hybrid pads | US14531388 | 2014-11-03 | US09726221B2 | 2017-08-08 | Brandon T. Kovach; Steven A. Heitz |
| A journal bearing assembly includes a first journal bearing disposed about a longitudinal end of a gear shaft and spaced a first distance from a first axial gear face. A first fluid film location and a first hybrid pad location are annularly between an inner surface of the first journal bearing and an outer surface of the gear shaft. The first hybrid pad location circumferentially adjacent to the first fluid film location has a minimum leading edge angular location of at least about 31.0° measured relative to a first bearing flat. A first porting path provides high pressure fluid communication from a location outside the first journal bearing to the first fluid film location at or adjacent to the first hybrid pad location. | ||||||
| 145 | Multi-Vane Impeller Device | US15264823 | 2016-09-14 | US20170074099A1 | 2017-03-16 | Gregory T. Kemp; Joseph S. Orosz; John L. Montgomery |
| A device usable as an impeller has a plurality of vanes rotating eccentrically about a shaft. Eccentric rotation is enabled by a cam mounted on the shaft. The vanes are received within slots in a rotor which surrounds the shaft and rotates about an axis coaxial with the shaft. The rotor rotates within a housing having a cylindrical surface facing the rotor. The surface is eccentric to the shaft. The vanes execute reciprocal motion upon rotation of the rotor. The vane motion is constrained so that the edges of the vanes remain proximate to the cylindrical surface during rotation. | ||||||
| 146 | Displacement pump having fluidly connected pressure chambers | US14534580 | 2014-11-06 | US09551340B2 | 2017-01-24 | Andreas Blank |
| A displacement pump with a pot-shaped housing, a rotor which is swivel-mounted about a rotation axis inside the housing, and two blades which are guided in a movable manner insider the rotor, wherein the pot-shaped housing includes an inner peripheral wall which has a sealing portion for tightly adjoining the rotor and a chamber portion for tightly adjoining the blade tips, as well as for dividing the internal space of the housing into chambers. The rotor has two blade receptacles for receiving and guiding the blades, wherein each internal radially extending blade tip restricts a pressure chamber in the respective blade receptacle. Both pressure chambers are fluid-connected to one another via a connection element, wherein the total volume of both pressure chambers and the connection element remains at the same level during a rotation of the rotor, at least while the blade tips are attached to the chamber portion. | ||||||
| 147 | MOUNTING STRUCTURE FOR ELECTRIC OIL PUMP | US15123955 | 2015-02-17 | US20170016442A1 | 2017-01-19 | Shinichiro HAZAMA; Shinsuke ISOGAI; Toshiyuki YOKOI; Takashi HASHIMOTO |
| A mounting structure for electric oil pump is provided to allow the electric oil pump to be mounted without through a communication pipe. The electric oil pump includes a pump unit having an inscribed gear pump, and a motor unit disposed adjacent to the pump unit and having a sensorless brushless DC motor for rotating the inscribed gear pump. A transmission accommodates the electric oil pump and includes a transmission case having an oil pan. The electric oil pump is attached to the transmission case with at least a through hole for supplying working oil to the pump unit being submerged in the working oil reserved in the oil pan. | ||||||
| 148 | Coupling shaft for gear pump | US14456145 | 2014-08-11 | US09546655B2 | 2017-01-17 | Satish Shantilal Shah; Timothy P. Walgren |
| A shaft assembly includes a shaft with a first radial shoulder and a second radial shoulder. The first radial shoulder and the second radial shoulder each include at least one slot. An axial separation between the first radial shoulder and the second radial shoulder defines an axial distance SA along an axis of rotation. The at least one slot defines a lowermost radial dimension SR from the axis of rotation. A ratio of SR/SA is 0.25-0.77. | ||||||
| 149 | LIQUID PUMP AND RANKINE CYCLE APPARATUS | US14936726 | 2015-11-10 | US20160186746A1 | 2016-06-30 | TAKUMI HIKICHI; OSAO KIDO |
| A liquid pump of the present disclosure includes a container, a shaft, a bearing, a pump mechanism, a storage space, and a liquid supply passage. The shaft is disposed in the container. The bearing supports the shaft. The pump mechanism pumps a liquid by rotation of the shaft. The storage space is defined in the container at a position outside the pump mechanism. The storage space stores the liquid to be taken into the pump mechanism or the liquid to be discharged to outside of the container after being expelled from the pump mechanism. The liquid supply passage is a flow path including an inlet open to the storage space and supplying the liquid stored in the storage space to the bearing. | ||||||
| 150 | Gear Wheel with Meshing Teeth | US14778838 | 2013-08-29 | US20160047462A1 | 2016-02-18 | Pierpaolo CAGNANI |
| The invention concerns a gear wheel (2) having a plurality of identical teeth suitable for meshing in parallel with a similar second gear wheel in a casing (3) of a hydraulic machine, said gear wheel having a side face of the front toothing (21) and a side face of the rear toothing (22) suitable for dragging in rotation against a front bush (41) and a rear bush (42), respectively, said bushes (41, 42) being slotted onto a sleeve (20) fixedly connected to the gear wheel (2), said helical teeth extending along the entire gear wheel (2) between the front side face (21) and the rear side face (22), where both the side face of the front toothing (21) and the side face of the rear toothing (22) have, at each tooth, a removed rotor portion (2a, 2b, 2c), so as to have an area of the side faces of the toothing that does not come into contact with the bush when the latter is placed in abutment against the respective side face of the toothing of the gear wheel. | ||||||
| 151 | POSITIVE DISPLACEMENT GEAR PUMP | US14783002 | 2014-09-23 | US20160047377A1 | 2016-02-18 | Franco TOMMASINI |
| A positive displacement pump has a casing with a central body and two closing lids, the central body being provided with two cylindrical communicating chambers, one suction pipe and one discharge pipe, and two rotors revolvingly mounted in the chambers of the central body and supported by shafts revolvingly mounted in the closing lids. The two rotors include a male rotor having only protuberances, not cavities, and a female rotor having only cavities, not teeth or protuberances. | ||||||
| 152 | METHOD FOR PRODUCING A VANE FOR A ROTARY VANE PUMP, VANE FOR A ROTARY VANE PUMP AND ROTARY VANE PUMP | US14762368 | 2014-01-24 | US20150352638A1 | 2015-12-10 | Arno Steiner; Alessandro De Nicolò; Philipp Neunhäuserer; Thomas Oberleiter |
| The invention relates to a method for producing a net-shape vane for a rotary vane pump, which vane is preferably open-pored and consists of a metal sinter material. The vane has at least one first front face and one second front face which is preferably oriented parallel to the first front face, and a first lateral surface and second lateral surface that is oriented parallel to the first lateral surface. Furthermore, the vane comprises a first contour surface and a second contour surface. The method for producing the vane comprises at least the following steps: pressing (20) a powder mixture to a green body by means of a powder press, sintering (21) the green body inside a sintering furnace to a sintering element having an austenitic structure, quenching the sintering element inside the sintering furnace to a temperature below the martensitic start temperature for hardening (22), tempering (23) the sintering element preferably inside the sintering furnace, removing (24) the sintering element as net-shape vane, preferably as removal from the sintering furnace. After removing the sintering element, deburring (25) can optionally be made. The invention further relates to a vane and a rotary vane pump. | ||||||
| 153 | Oil pump apparatus with pump section and segmented oil intake circuit | US13117312 | 2011-05-27 | US09206803B2 | 2015-12-08 | Keichi Tatewaki; Akio Nonomura; Yasuhiro Kawachi |
| An oil pump apparatus for supplying an oil to a vehicular transmission, includes a pump to suck the oil from an oil reservoir through an inlet port into a pumping chamber, and an intake circuit to convey the oil sucked from the oil reservoir to the inlet port. The intake circuit includes a proximal segment, an intermediate segment and a distal segment. The proximal segment extends from the inlet port, to the intermediate segment. The intermediate segment extends upwards from the proximal segment. The distal segment extends downwards from a first connecting end portion connected with the intermediate segment to a end portion formed with an suction opening to suck the oil from the oil reservoir into the intake circuit. | ||||||
| 154 | HERMETIC ROTARY COMPRESSOR | US14653041 | 2012-12-20 | US20150330382A1 | 2015-11-19 | Kazuchika TSUCHIDA; Osamu KAZAMA |
| A rotor has at its two axis end portions an upper large-diameter inner circumferential portion and a lower large-diameter inner circumferential portion that have inner diameters larger than the inner diameter of the axially middle portion of the rotor and are offset in the radial direction. A crankshaft has a passageway, which is formed in the crankshaft and allows refrigerant to flow therethrough, and a gas venting hole, which provides communication between the passageway and at least one discharge opening formed in the outer circumferential surface of the crankshaft. The at least one discharge opening is formed at a position facing the inner circumferential surface of the lower large-diameter inner circumferential portion 5b on the compression unit side. | ||||||
| 155 | VARIABLE DISPLACEMENT VANE PUMP AND METHOD OF REGULATING THE DISPLACEMENT THEREOF | US14652927 | 2013-12-13 | US20150322944A1 | 2015-11-12 | Matteo CALDERONI; Leonardo CADEDDU |
| A variable displacement rotary vane pump for fluids is provided where displacement regulation is achieved thanks to the variation of the relative eccentricity between a regulation ring (11) in which a rotor (13) is arranged and the rotor itself. In a region of engagement between the external surface (11A) of the regulation ring (11) and the internal surface (40A) of a chamber (40) inside which the regulation ring (11) moves, a plurality of rolling elements (25), mounted in fixed position, is provided. The rolling elements (25) are provided only over a portion of such a region of engagement, including a zone (S) where a resultant of mechanical and fluidic forces generated in the pump during the regulation acts. A method of regulating the displacement of such a pump is also disclosed. | ||||||
| 156 | Internal gear pump having a lubricant feed from the suction region | US13989959 | 2011-11-24 | US09039398B2 | 2015-05-26 | Rene Schepp; Kornelius Loew |
| An internal gear pump includes a ring gear and a pinion configured to mesh with the ring gear. The ring gear and pinion delimit a pump chamber extending from a suction region to a pressure region. The internal gear pump also includes an axial disk arranged on front faces of the ring gear and the pinion and includes a lubricant feed from the suction region between the axial disk and the ring gear and pinion. The lubricant feed includes a lubricant channel which passes through the axial disk. A wedge gap is delimited between the axial disk and the ring gear and pinion. The wedge gap communicates with the suction region and, when the ring gear and the pinion are driven in rotation, a lubricating film forms between the axial disk and the ring gear and pinion. | ||||||
| 157 | Scavenge gear pump | US13484538 | 2012-05-31 | US09033690B2 | 2015-05-19 | Daniel Alecu; Pierre Gauvin; Ritchie Domingo |
| A scavenge gear pump and its method of operation is described. The scavenge gear pump includes a pump housing defining a pump chamber, an inlet passage, an outlet passage, and a fluid injection passage in fluid communication with the pump chamber. The inlet passage receives an admixed fluid at low pressure and the outlet passage the admixed fluid at high pressure from a downstream region of said pump chamber. The fluid injection passage receives a third fluid at an injection pressure for input into the pump chamber. A pair of driveable gears is disposed in the pump chamber. The third fluid is injected directly into the gear meshing area of the pump chamber through the fluid injection passage so that the third fluid fills voids at least between said intermeshing teeth of the driveable gears and so that the second fluid does not occupy the gear meshing area. | ||||||
| 158 | DISPLACEMENT PUMP | US14534580 | 2014-11-06 | US20150125331A1 | 2015-05-07 | Andreas Blank |
| A displacement pump with a pot-shaped housing, a rotor which is swivel-mounted about a rotation axis inside the housing, and two blades which are guided in a movable manner insider the rotor, wherein the pot-shaped housing includes an inner peripheral wall which has a sealing portion for tightly adjoining the rotor and a chamber portion for tightly adjoining the blade tips, as well as for dividing the internal space of the housing into chambers. The rotor has two blade receptacles for receiving and guiding the blades, wherein each internal radially extending blade tip restricts a pressure chamber in the respective blade receptacle. Both pressure chambers are fluid-connected to one another via a connection element, wherein the total volume of both pressure chambers and the connection element remains at the same level during a rotation of the rotor, at least while the blade tips are attached to the chamber portion. | ||||||
| 159 | Downhole motors with a lubricating unit for lubricating the stator and rotor | US13187250 | 2011-07-20 | US08800688B2 | 2014-08-12 | Hendrik John; Harald Grimmer |
| In aspects, the disclosure provides a drilling motor that includes a lubricating unit that selectively supplies a lubricant to the drilling fluid before the drilling fluid passes through the drilling motor so as to lubricate the stator and/or the rotor to reduce friction between the stator and the rotor and to reduce wear of the motor. | ||||||
| 160 | Gas Pump With Pressure Relief for Reducing the Starting Torque | US14151129 | 2014-01-09 | US20140199199A1 | 2014-07-17 | Uwe Meinig |
| A gas pump including a delivery chamber with an inlet and an outlet for a gas; a first housing part with a first sealing surface which at least partially surrounds the delivery chamber; a second housing part with a second sealing surface which at least partially surrounds the delivery chamber, wherein the second housing part together with the first housing part at least partially encloses the delivery chamber; a delivery device which can be moved within the delivery chamber, for delivering the gas; and a pressing device which 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, wherein 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. | ||||||
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