| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | 플랜지 기어 펌프 | KR1020047004154 | 2002-10-23 | KR100887438B1 | 2009-03-10 | 끼페르,끌레망 |
| 본 발명은 기어 펌프에 관한 것으로, 상기 기어 펌프는 커버(3)에 의해 닫혀져서 구동 기어(4)가 위치하는 펌핑실을 형성하는 펌프 몸체(2), 고정된 구동축(1)에 의해 지지되고 구동되는 구동 기어(4), 상기 구동 기어(4)와 맞물려 회전되는 피동 기어(5), 및 상기 피동 기어(5)의 양측면에 각각 위치하고 상기 커버(3)와 상기 펌프 몸체(2)에 각각 형성된 공동(10)에 삽입되는 쉴드와 상기 쉴드의 외측면에 압력을 가하기 위한 수단을 포함하되, 상기 각각의 쉴드는 상기 피동 기어(5)의 측면에 결속된 디스크(8)로 구성되어 있고, 상기 디스크(8)와 상기 피동 기어(5)은 중심이 같고, 상기 디스크(8)는 상기 피동 기어(5)의 이(teeth)의 양측면을 덮는다. 상기 디스크(8)의 외측면에 작용하는 압력은 상기 디스크(8)가 변형되는 것을 방지하여 누설 구역이 발생하는 것을 막는다. 추가적으로, 상기 디스크(8)은 피동 기어(5)가 회전하는데 있어서, 안내 축의 역할도 할 수 있다. 기어펌프, 구동 기어, 피동 기어, 디스크, 쉴드 | ||||||
| 82 | 치밀한 이심적 스크류 펌프 | KR1020077016320 | 2005-12-14 | KR1020070091193A | 2007-09-07 | 베버,헬무트 |
| The invention relates to a compact eccentric screw pump comprising a sliding articulation. The long-lasting operation of the pump is ensured by a plurality of functions. According to the invention, both the reaction pressure resulting from the transport pressure and the concomitant phenomena emerging from the eccentrically rotating rotor and acting on the articulation and the drive are approximately equalised. | ||||||
| 83 | 이중워엄기어시스템 | KR1019980704330 | 1996-07-08 | KR100384925B1 | 2003-08-21 | 베커울리히 |
| PCT No. PCT/CH96/00250 Sec. 371 Date Feb. 8, 1999 Sec. 102(e) Date Feb. 8, 1999 PCT Filed Jul. 8, 1996 PCT Pub. No. WO97/21925 PCT Pub. Date Jun. 19, 1997In prior art designs, single-flight cast double worms with angles of contact >720 DEG with large balance hollows at both ends and worm lengths of whole multiples of the pitch operate in the medium rotation speed ranges ( DIFFERENCE 3000 min DIFFERENCE 1) without imbalance. The desired use of special uncastable materials and the manufacturing complexity and the necessary dimensional stability even for extreme profile geometries pose additional problems in balancing which are solved by the present invention. Here, it is possible, by varying the angle of contact of the worm and any balance hollows and/or by altering the contour of the worms in the medium engagement region, to reduce the size of the balance hollows, sometimes to "zero", and with the possible use of additional masses. Besides the advantage of simple raw component manufacture, worms balanced in this way also permit the use of special materials and extreme worm geometries for fitting in pumps used in the chemical, medical and food sectors. | ||||||
| 84 | 스크류 로터세트 | KR1019997001867 | 1997-07-21 | KR1020000035974A | 2000-06-26 | 베커,울리히 |
| PURPOSE: A method is provided which keeps the balance of a single screw face having smooth surface with no cavities without using additional component on the exterior. CONSTITUTION: A pump is used in processes having sensitive purity and maintenance requirements or working with corrosive substances or where limited space is available and quality is demanded. An uneven mass distribution is accomplished by constructing the rotors with several single parts inside the rotor, by forming cavities and by choosing the adequate material, which, combined with the screw length and pitch ratio, cause a static and dynamic balancing. Screw rotors is arranged to offer several advantages since they are easy to assemble and have a compact and stable construction. Moreover, screw rotors are used in pumps for the food industry, chemistry, medicine and semi-conductor construction due to the flexibility in material and to the smooth surfaces free from cavities. | ||||||
| 85 | 스크로울형 유체기계 | KR1019840002310 | 1984-04-30 | KR1019880000858B1 | 1988-05-26 | 모리시다에쓰오 |
| The scroll-type hydraulic machine includes first and second fluid volume changing mechanisms, each of which has a stationary scroll and an orbiting scroll assembled such that fluid introduced between the two scrolls is reduced in volume and discharged. A crank mechanism including a crankshaft with an eccentric throughhole extending therethrough has a first crank portion at one end for rotatably supporting a shaft of the first orbiting scroll and a second crank portion at the other end rotatably supporting the second orbiting scroll. A thrust-cancelling shaft is disposed in the eccentric through-hole, supporting at its the opposed ends the orbiting scrolls of the first and second mechanisms. | ||||||
| 86 | Pump and Blocking Element | US15763424 | 2016-09-29 | US20180298897A1 | 2018-10-18 | Achim Staedele; Eric Mayer |
| A pump having a rotor that is rotatable about a rotation axis and comprises a rotor hub and a rotor collar that extends from the rotor hub in the radial direction and encircles it in an undulating manner, a pump housing which forms a pump duct with the rotor, said pump duct connecting a first inlet/outlet space to a second inlet/outlet space and a blocking device which is arranged between the first inlet/outlet space and the second inlet/outlet space and which comprises a blocking element which blocks the pump duct in the axial direction on both sides of the rotor collar. The blocking device has a first seat and a second seat for the blocking element, wherein the spacing between the first seat and the second seat in the circumferential direction is greater than the spacing between a first contacting face and a second contacting face of the blocking element in the circumferential direction. The invention also relates to a pump having a blocking device which includes a chamber formed in the pump housing, wherein the chamber and the blocking element are configured such that an exchange duct is formed in the axial direction between an axially front fluid chamber and an axially rear fluid chamber on the opposite side of the rotor collar, and to a corresponding blocking element. | ||||||
| 87 | Positive displacement pump with pressure relief | US15530770 | 2017-02-27 | US20180245585A1 | 2018-08-30 | Richard Wallace Hibbard |
| A rotary, self-priming, positive displacement pump is described. The pump may include a pump housing including an inlet and an outlet, a pump chamber including an upper wall, a lateral wall, and a floor, first and second rotary impellers in the pump chamber, and a pair of gears each secured to the first and second rotary impellers, and a pressure relief feature operable to relieve pressure developing in a relatively high pressure zone of the pump chamber. The gears mesh with each other to ensure that the vanes do not contact one another during rotation. The pressure relief feature may comprise one or more channels formed in the pump housing and/or the first and second rotary impellers. The channels connect the high pressure zone with another zone to redistribute pressure. The channels may include one continuous channel or alternatively, a plurality of unconnected channels. | ||||||
| 88 | Liquid pump and rankine cycle system | US15150327 | 2016-05-09 | US09989055B2 | 2018-06-05 | Takumi Hikichi |
| A liquid pump in the present disclosure includes a pressure container, a shaft, a first bearing, a second bearing, a pump mechanism, and a thrust bearing. The internal space of the pressure container is partitioned into a high pressure side space and a low pressure side space. The shaft has a thrust supported face, one of both ends of the shaft is disposed in the high pressure side space, and the other of both ends of the shaft is disposed in the low pressure side space. The pump mechanism is disposed between the first bearing and the second bearing, and pumps liquid by rotation of the shaft. The thrust bearing is disposed to face the thrust supported face between the first bearing and the second bearing. | ||||||
| 89 | UNIAXIAL ECCENTRIC SCREW PUMP | US15563575 | 2016-10-19 | US20180087507A1 | 2018-03-29 | Kei TANAKA |
| A uniaxial eccentric screw pump includes: a stator 32 having a female threaded inner peripheral surface; a rotor 33 configured to be insertable into the stator 32, and formed of a male threaded shaft body; an exterior body 31 configured to be movable between a first position where the exterior body 31 is capable of compressing the stator 32 and a second position where the exterior body 31 at least alleviates a compression state of the stator 32; and guide members 55, 56 configured to restrict a movement of the exterior body 31 in a circumferential direction of the stator while allowing a movement of the exterior body 31 in a radial direction of the stator by guiding an end portion of the exterior body 31. | ||||||
| 90 | PUMP FOR AN ENGINE | US15237734 | 2016-08-16 | US20180051695A1 | 2018-02-22 | Michael D. Klimes; Corey E. Baxter; Daniel S. Brandt |
| A pump for an engine includes a suction chamber, a discharge chamber, and a piston at least partly received within a relief chamber. The piston has first and second passageways provided therein. The second passageway is located closer to a face of the piston than the first passageway. The piston is movable within the relief chamber, so that the volume of the fluid transfer from the suction chamber to the discharge chamber is varied according to a pressure in the relief chamber. The first and second passageways form fluid paths between the suction chamber and the discharge chamber at a first and second pressure in the relief chamber, respectively, the first pressure being less than the second pressure. | ||||||
| 91 | Tandem thrust bearing with resilient bearing support | US14660618 | 2015-03-17 | US09765790B2 | 2017-09-19 | David Tanner; Arturo Luis Poretti; Ryan P. Semple; Aron M. Meyer |
| An electrical submersible pump assembly has a thrust bearing mechanism with first and second thrust runners axially and rotationally secured to the shaft and located within a housing. First and second thrust receiving structures are rigidly mounted in the housing to receive thrust from the first and second thrust transferring devices. A deflectable member located in the first thrust transfer thrust device decreases in axial thickness in response to thrust of a selected level. The second thrust transfer thrust device has an axial length less than an axial distance from the second thrust receiving structure to the second thrust runner, defining an initial axial gap. During operation of the pump, the shaft and the first and second thrust runners move axially a limited extent, closing the gap and transferring thrust from the second thrust transfer device to the second thrust receiving structure. | ||||||
| 92 | GEAR PUMP WITH END PLATES OR BEARINGS HAVING SPIRAL GROOVES | US15127584 | 2015-03-19 | US20170175736A1 | 2017-06-22 | Justin A. Craig; Joel E. Cate |
| A gear pump includes a housing, at least one gear set and a plurality of end plates. The gear set may be positioned between the end plates so that side surfaces of the gears face corresponding side surfaces of the end plates. The side surfaces of the end plates may have a plurality of spiral grooves positioned directly adjacent the side surface of the gears. The plurality of spiral grooves may have a logarithmic shape. Thus arranged, when the gears rotate, fluid in the pump is forced along the lengths of the spiral grooves, creating a local high pressure region that forces fluid between the side surfaces of the gears and the end plates, minimizing or eliminating contact therebetween. In some embodiments the plurality of spiral grooves may be positioned on bearing surfaces of the pump instead of end plates. | ||||||
| 93 | Electric oil pump | US14773548 | 2015-01-06 | US09683567B2 | 2017-06-20 | Takayuki Chikaoka |
| A drive rotation shaft is rotatably supported by a first slide bearing between a rotor part and a pump rotor, and is rotatably supported by a second slide bearing on its distal end side of a pump rotor fixing part of the drive rotation shaft. Working oil is supplied to the first slide bearing and the second slide bearing. According to this configuration, since the distal end side of the drive rotation part is rotatably supported by the second slide bearing, inclination of the drive rotation shaft is restricted by an inner peripheral surface of the second slide bearing, thereby suppressing occurrence of noise. | ||||||
| 94 | PUMP PROVIDED WITH A SYSTEM FOR COMPENSATING THE INTERNAL PRESSURE | US15267333 | 2016-09-16 | US20170082105A1 | 2017-03-23 | Diego ANDREIS |
| The present document describes a pump (10) comprising a casing (12) that encloses a pumping group (14). On the casing (12) at least one inlet conduit for inletting a fluid (F) and at least one outlet conduit for outletting the fluid (F) are obtained. The pumping group (14) comprises a pair of mutually coupled gears, each mounted on a respective support shaft. The relative movement of a first gear with respect to the second gear defines a pumping chamber having variable volume inside the pumping group (14), so as to suck the fluid (F) from the suction conduit to expel it through the delivery conduit. A first support shaft (16) is operatively connected to an actuator assembly (18) so that the first gear can operate as a driving gear to set the second gear in rotation. The pump (10) comprises at least one element (20) for compensating the increase in volume of the fluid (F) and/or the increase in the pressures inside such a pump (10). The element (20) for compensating the pressure/volume is at least partially manufactured from a shape memory metal alloy having superelastic properties. | ||||||
| 95 | Self-priming positive displacement constant flow high capacity pump | US10963071 | 2004-10-12 | US09581155B2 | 2017-02-28 | Richard Hibbard |
| A rotary action, self-priming positive displacement constant flow high capacity fluid pump is described. None of the pump parts touch in the pump chamber to minimize pump wear allowing for extended pump life. Since there are no touching parts in the pump chamber, the pump can be operated dry without the pump liquid being present without damage to the pump. The pump may be operated either clockwise or counter-clockwise without loss of positive displacement or reduction in fluids input or output. Due to the design of the pump, the pump is inherently low-maintenance and is highly resistant to clogging by debris and the like. Fluid pressure relief sections are provided by carving out of the inside portions of the housing structure to which the ends of the shaft are mounted to vary or improved pump performance. | ||||||
| 96 | Gear pump driven gear stationary bearing | US14298543 | 2014-06-06 | US09488174B2 | 2016-11-08 | Brandon T. Kovach; Steven A. Heitz |
| One embodiment includes a gear pump with a driven gear, a gear shaft passing through the driven gear, and a stationary journal bearing. Also included is a fluid film, between a surface of the stationary journal bearing and a surface of the gear shaft, and a hybrid pad on the stationary journal bearing. The hybrid pad has a minimum leading edge angular location on the stationary journal bearing of 41.5° and a maximum trailing edge angular location on the stationary journal bearing of 54.5°. The gear pump also includes a porting path for supplying high pressure fluid from a discharge of the gear pump to the fluid film at the hybrid pad. | ||||||
| 97 | Gear pump drive gear stationary bearing | US14298561 | 2014-06-06 | US09488171B2 | 2016-11-08 | Brandon T. Kovach; Steven A. Heitz |
| One embodiment includes a gear pump with a drive gear, a gear shaft passing through the drive gear, and a stationary journal bearing. Also included is a fluid film, between a surface of the stationary journal bearing and a surface of the gear shaft, and a hybrid pad on the stationary journal bearing. The hybrid pad has a minimum leading edge angular location on the stationary journal bearing of 29.5° and a maximum trailing edge angular location on the stationary journal bearing of 42.5°. The gear pump also includes a porting path for supplying high pressure fluid from a discharge of the gear pump to the fluid film at the hybrid pad. | ||||||
| 98 | Gear pump driven gear pressure loaded bearing | US14298411 | 2014-06-06 | US09488170B2 | 2016-11-08 | Brandon T. Kovach; Steven A. Heitz |
| One embodiment includes a gear pump with a driven gear, a gear shaft passing through the driven gear, and a pressure loaded journal bearing. Also included is a fluid film, between a surface of the pressure loaded journal bearing and a surface of the gear shaft, and a hybrid pad on the pressure loaded journal bearing. The hybrid pad has a minimum leading edge angular location on the pressure loaded journal bearing of 41.5° and a maximum trailing edge angular location on the pressure loaded journal bearing of 54.5°. The gear pump also includes a porting path for supplying high pressure fluid from a discharge of the gear pump to the fluid film at the hybrid pad. | ||||||
| 99 | GEROTOR PUMP FOR A VEHICLE | US14666568 | 2015-03-24 | US20160281711A1 | 2016-09-29 | Mohammad Ali MOETAKEF |
| A gerotor pump is provided with a body defining a chamber with cylindrical wall sections and having a fluid inlet and a fluid outlet, and a cover. An internally toothed gear member is supported for rotation within the chamber about a first axis, and has a cylindrical outer wall defining a series of grooves. Each groove has an associated aperture extending through the gear member to an inner surface of the gear member, and is radially positioned between adjacent teeth of the internally toothed gear member. An externally toothed gear member is rotatably supported within the internally toothed gear member about a second axis spaced apart from the first axis, and is coupled for rotation with a drive shaft. The internally toothed gear member and externally toothed gear member cooperate to form a plurality of variable volume pumping chambers therebetween to pump fluid. | ||||||
| 100 | Gear pump drive gear pressure loaded bearing | US14298434 | 2014-06-06 | US09453506B2 | 2016-09-27 | Brandon T. Kovach; Steven A. Heitz |
| One embodiment includes a gear pump with a drive gear, a gear shaft passing through the drive gear, and a pressure loaded journal bearing. Also included is a fluid film, between a surface of the pressure loaded journal bearing and a surface of the gear shaft, and a hybrid pad on the pressure loaded journal bearing. The hybrid pad has a minimum leading edge angular location on the pressure loaded journal bearing of 29.5° and a maximum trailing edge angular location on the pressure loaded journal bearing of 42.5°. The gear pump also includes a porting path for supplying high pressure fluid from a discharge of the gear pump to the fluid film at the hybrid pad. | ||||||
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