181 |
모듈러 멀티-속도 제어 메커니즘을 구비한 회전 유체 압력 장치 |
KR1020097008130 |
2007-09-20 |
KR1020090071608A |
2009-07-01 |
밀러앤드류티. |
A rotary fluid pressure device (11) includes a plate assembly (17) having a plate member (71) and at least one cover plate (105), which defines a mounting surface (107) adapted for sealing engagement with an exterior surface (77) of the plate member (71), or at least one control valve assembly (105), which defines a mounting surface (117) adapted for sealing engagement with the exterior surface (77). The cover plate assembly (105), when mounted to the exterior surface (77), provides fluid communication between openings (95, 97) of upstream and downstream fluid passages (91, 93), thereby providing single-speed functionality. The control valve assembly (115), when mounted to the exterior surface (77), provides selective fluid communication between the openings (95, 97) of upstream and downstream fluid passages (91, 93), thereby providing multi-speed functionality. |
182 |
자이로 펌프 |
KR1020000011559 |
2000-03-08 |
KR1020000062785A |
2000-10-25 |
윤재범; 김종대 |
PURPOSE: A gyro pump is provided to lengthen useful life of a pump and accomplish an improved wear resistance while allowing a portion contacting a swash plate to be made of a special steel material. CONSTITUTION: A gyro pump comprises a driving shaft(26) receiving a rotational power so as to bring about an eccentric rotation, a cylindrical central main body(28) having a fluid inlet and a fluid outlet, the main body having at an inner periphery thereof a curve for a slide contact to an outer periphery of a swash plate(25) performing an oscillation, the swash plate having at both sides of a disc-shaped body thereof a pair of semi-spherical shoes and which is accommodated into an inner diameter of the central main body so as to convert the eccentric rotation of the driving shaft into an oscillation, a first end plate(35) having a body thereof penetrating with a hole for receiving the driving shaft, the first end plate being coupled to be attachable/detachable to/from a side surface of the central main body so as to close the side surface of the central main body, a second end plate(36) coupled to be attachable/detachable to/from another side surface of the central main body so as to close the other side surface, first and second bases(45,46) fixed to be attachable/detachable to/from inner side surfaces of the first and second end plates, respectively, first and second receiving members(49,50) fixed to be attachable/detachable to/from assembly holes of the first and second bases, and a diaphragm(39) for blocking shoes of the swash plate, the fluid inlet and outlet of the central main body. |
183 |
Horizontally Split Screw-Spindle Pump |
US16345597 |
2017-10-27 |
US20190249662A1 |
2019-08-15 |
Thomas Eschner |
The invention relates to a screw pump (1), in particular a double screw pump, s comprising a multiple-piece housing (2, 7, 15, 21) and at least two coupled rotors (3, 3a) which form chambers with in each case at least one thread-shaped profile (4, 4a) which is configured at least in regions with helical channels (5, 5a) and with dividing walls (6, 6a) which delimit the channels (5, 5a), wherein the rotors (3, 3a) perform an opposed rotor rotation, and the dividing walls (6, 6a) engage into one another in a gearwheel-like manner, a running housing part (7), wherein the running housing part (7) encloses the rotors (3, 3a) without contact, wherein the rotors (3, 3a) form, with the running housing part (7), at least one conveying chamber (8, 8a) for the fluid to be conveyed, wherein the conveying chamber (8, 8a) migrates axially along the rotor axis (10, 10a) and conveys the fluid from a suction chamber (11) into a pressure chamber (12), a suction-side connector element (13) which is connected fluidically to the suction chamber (11), and a pressure-side connector element (14) which is connected fluidically to the pressure chamber (12), wherein the suction-side connector element (13) and the pressure-side connector element (14) are arranged on a connector housing part (15) of the multiple-piece housing (2, 7, 15, 21), wherein the housing (2, 7, 15, 21) has a planar dividing plane (16) which runs parallel to the rotor axes (10, 10a) between the running housing part (7) and the connector housing part (15). |
184 |
Refrigerant Compressor System |
US16013036 |
2018-06-20 |
US20180298905A1 |
2018-10-18 |
Christian Scharer; Thomas Varga |
Refrigerant compressor installation comprising at least three compressors which are arranged in parallel between an intake conduit and a pressure conduit and which each comprise a lubricant sump unit, wherein the compressors, when in operation, work in such a way that the respective pressures in the respective lubricant sump units of the respective compressors form a pressure cascade according to which the compressors have a successively slightly decreasing pressure in the respective lubricant sump unit in a defined cascade sequence, and wherein the lubricant sump units are connected to each other in a manner corresponding to the cascade sequence by way of a lubricant conduit system for lubricant transport, and wherein each lubricant sump unit comprises a port to which is connected an insert element which on the one hand establishes communication with the lubricant conduit system and on the other hand is configured such that it predetermines, for the respective lubricant sump unit, a lubricant level from which lubricant is transported to the lubricant sump unit that follows next in the cascade sequence. |
185 |
Stator |
US15652683 |
2017-07-18 |
US10087926B2 |
2018-10-02 |
Jesse Benedict Rothschild; Dwight Patrick Jones; Mark Phillip Noah |
A stator assembly for a progressing cavity pump is provided. The stator assembly includes a number of stator laminates having a planar body defining a primary, inner passage and a number of outer passages, the outer passages disposed effectively adjacent the inner passage whereby the inner passage is at least partially defined by a band, wherein the band is outwardly flexible. The stator laminates are coupled to each other in a stack wherein the stator laminate body inner passages define a helical passage. The helical passage is a flexible helical passage. |
186 |
GEAR PUMP |
US15745488 |
2015-05-18 |
US20180209416A1 |
2018-07-26 |
Makoto Araki; Hirotada Yoshitani |
A gear pump according to the present invention is configured such that a first pump chamber comprises a first intake space into which a fluid is taken in and a first discharge space from which the fluid is discharged, in accordance with rotation of an internal gear and external gears, a second pump chamber comprises a second intake space into which the fluid is taken in and a second discharge space from which the fluid is discharged, in accordance with rotation of the internal gear and the external gears, the first intake space and the second intake space are provided to be symmetrical about a rotational center of the internal gear, and the first discharge space and the second discharge space are provided to be symmetrical about the rotational center of the internal gear. |
187 |
High-Pressure Pump for Use in a High-Pressure Press |
US14188805 |
2014-02-25 |
US20180163720A9 |
2018-06-14 |
David R. Hall; Scott Dahlgren |
A high-pressure pump comprising an elongated casing and a hollow interior formed along a central axis thereof. At least one partition may be axially fixed within the elongated casing such that it divides the hollow interior. First and second pressure differential devices may be disposed on opposite sides of the at least one partition and each have a rotary shaft extending there through. A first rotary shaft extending through the first pressure differential device may be axially fixed by the at least one partition and rotationally fixed to a second rotary shaft extending through the second pressure differential device. The high-pressure pump may be driven by a servomotor and used in a high-pressure press. |
188 |
Modularized Integrated Non-Coaxial Multiple Chamber Dry Vacuum Pump |
US15882980 |
2018-01-29 |
US20180149156A1 |
2018-05-31 |
Raymond Zhou Shaw; Yi Rong |
A modularized integrated non-coaxial multiple chamber dry vacuum pump is formed by at least two modularized vacuum chambers that can be integrated into a solid multiple stage dry vacuum pump. These chambers are connected in serial to allow gas to pass through and be discharged directly to the atmosphere. Each chamber contains a pair of lobes of its own and at least one chamber does not share at least one coaxial axle with another chamber. At least two chambers do not share all co-axial(s) and can have their own power drive at different RPMs from either different motors or transmissions. |
189 |
Motor lead with heat deflecting layer for submersible well pump |
US14584402 |
2014-12-29 |
US09958104B2 |
2018-05-01 |
Ty L. Baker; Leslie C. Reid |
A motor lead extends alongside an electrical pump assembly for supplying electrical power to the motor. The motor lead has electrical power wires positioned side-by-side in a sub assembly. Each of the electrical power wires has an electrical conductor encased in an insulation layer, which in turn is encased in a lead sheath. A metallic band armor wraps around the sub assembly. A thermal barrier layer is located between an inward facing side of the sub assembly and the pump assembly. The thermal barrier layer is formed of thermal insulation material and has a width at least equal to a width of the sub assembly. The motor lead is free of any thermal barrier layers on the outward facing side of the sub assembly to as to allow heat within the sub assembly to dissipate outward. |
190 |
VACUUM PUMP SYSTEM |
US15568846 |
2016-06-20 |
US20180112666A1 |
2018-04-26 |
Thomas Dreifert; Roland Müller; Max Pelikan; Dirk Schiller; Daniel Schneidenbach; Dirk Stratmann |
A vacuum pump system comprising a plurality of vacuum pumps which are connected to one another in parallel and are each connected on an inlet side to a chamber, having an outlet line which is connected on the outlet side of the vacuum pumps, and an intermediate line which connects the inlet side of at least one vacuum pump to the outlet line, wherein all the vacuum pumps are connected in parallel during a pumping-out period and at least one of the vacuum pumps is connected in parallel with the other vacuum pumps as a backing pump during an idle period. |
191 |
COMPRESSOR SYSTEM |
US15589280 |
2017-05-08 |
US20170321699A1 |
2017-11-09 |
RYOSUKE KAWANO; Joseph Anton Abt |
A compressor system is disclosed. The compressor system includes a motor, a compressor driven by the motor, a first after cooler, a second after cooler, and a heat exchanger housed in an enclosure. Interior panels are arranged in the enclosure to separate the motor and compressor, the first after cooler, the second after cooler, and the heat exchanger from one another. Conduit extends through the interior panels to provide a fluid path between the compressor, the first after cooler, the second after cooler, and the heat exchanger. Ducting is provided in the enclosure to provide fluid communication between various components of the compressor system. |
192 |
Stator laminate, stator assembly including the stator laminate, and method of making the stator assembly |
US14931885 |
2015-11-04 |
US09803636B2 |
2017-10-31 |
Jesse Benedict Rothschild; Dwight Patrick Jones; Mark Phillip Noah |
A stator assembly for a progressing cavity pump is provided. The stator assembly includes a number of stator laminates having a planar body defining a primary, inner passage and a number of outer passages, the outer passages disposed effectively adjacent the inner passage whereby the inner passage is at least partially defined by a band, wherein the band is outwardly flexible. The stator laminates are coupled to each other in a stack wherein the stator laminate body inner passages define a helical passage. The helical passage is a flexible helical passage. |
193 |
SUCTION LINE ARRANGEMENT FOR MULTIPLE COMPRESSOR SYSTEM |
US15445137 |
2017-02-28 |
US20170268513A1 |
2017-09-21 |
James A. SCHAEFER; Harry B. CLENDENIN |
A compressor includes a shell assembly and a compression mechanism disposed within the shell assembly. The shell assembly includes first and second end caps. A suction chamber is disposed within the shell assembly between the first end cap and the second end cap. A discharge chamber and oil sump may be disposed within the shell assembly. The shell assembly includes at least one suction opening into the suction chamber. A distributor is in communication with one of the suction openings. Plugs may sealingly engage another one of the suction openings. The distributor includes an inlet path and first and second outlet paths. A suction line is coupled to the inlet path. The suction line includes at least first and second portions. A first plane bisecting the second portion along a length of the second portion is perpendicular to a second plane that bisects the first and second outlet paths. |
194 |
Split shell shaft coupling for submersible pump assemblies |
US14586332 |
2014-12-30 |
US09702360B2 |
2017-07-11 |
Aron M. Meyer; David Tanner; Chase Wichert |
An electrical submersible pump assembly has a number modules including a pump, a motor and a pressure equalizer. Each module has a rotatable shaft with a splined end that joins a splined end of another module, and those splined ends may differ in dimensions. A coupling that joins the shafts has a first shell has a splined bore that mates with the splined end of the first shaft. A second shell has a splined bore that mates with the splined end of the second shaft. An adopter has a first splined end in mating engagement with the splined bore of the first shell and a second splined end in mating engagement with the splined bore of the second shell. Fasteners secure the adapter to the shells. An annular seal isolates fluid communication between the first shell bore and the second shell bore. |
195 |
METHODS FOR MAKING A LOW INERTIA LAMINATED ROTOR |
US15122845 |
2015-03-11 |
US20170101989A1 |
2017-04-13 |
William Nicholas EYBERGEN; Michael Lee KILLIAN; Matthew James FORTINI; James Kevin SPRING |
A rotor assembly having a plurality of rotor plates mounted to a shaft, and methods of construction for a rotor assembly are disclosed. Each rotor plate in the assembly may be provided with a central opening extending between the first and second sides through which the shaft extends. In one aspect, the rotor plates are provided with a plurality of lobes extending away from the central opening, wherein each of the lobes has a lobe opening extending through the thickness of the plates. In one embodiment, the rotor plates are rotationally stacked to form a helical rotor. |
196 |
MULTIPLE COMPRESSOR CONFIGURATION WITH OIL-BALANCING SYSTEM |
US15232094 |
2016-08-09 |
US20170045052A1 |
2017-02-16 |
Troy Richard BROSTROM; Adam J. D'AMICO; Jacob A. GROSHEK; Reema KAMAT; Douglas P. PELSOR |
An oil balancing system for a multiple compressor system is provided. The oil balancing system includes an oil equalization line disposed between a first compressor and a second compressor. A first solenoid valve is provided in the oil equalization line. A first signal corresponds to a first oil level in the first compressor. A second signal corresponds to a second oil level in the second compressor. An oil balancing module uses the first signal and the second signal to diagnose an oil imbalance between the first compressor and the second compressor, and applies corrective action, whereby the corrective action includes sending control signals to operate at least one of the first compressor, the second compressor, or the first solenoid valve in a way that eliminates the oil imbalance. |
197 |
MULTI-STAGE PUMP ASSEMBLY HAVING A PRESSURE CONTROLLED VALVE FOR CONTROLLING RECIRCULATION OF FLUID FROM THE PUMP STAGE OUTLET TO THE PUMP STAGE INLET |
US15177107 |
2016-06-08 |
US20170045048A1 |
2017-02-16 |
Mark Joseph Denny |
The invention provides a pump comprising a pump inlet, a pump outlet, at least two threaded rotors and a pressure controlled valve, the pressure controlled valve being capable of controlling re-circulation of fluid from the pump outlet to the pump inlet. The pressure controlled valve can be a control valve. The invention also provides a multiple stage pump assembly comprising at least two pumps arranged in series, wherein at least one of the pumps is the aforementioned pump. |
198 |
PUMP ASSEMBLIES |
US15068463 |
2016-03-11 |
US20160265521A1 |
2016-09-15 |
Graham BUTLER |
Embodiments of improved pump systems and methods of using the same are disclosed herein. Embodiments described herein are well-suited, for example, for use in the methods of artificial lift in oil wells and for the purpose of deliquification of gas wells, among other uses. Embodiments of the disclosed pump systems may comprise one or more pump assemblies connected in parallel via shared low- and high-pressure conduits. |
199 |
Multi-stage pump assembly having a pressure controlled valve for controlling recirculation of fluid from the pump stage outlet to the pump stage inlet |
US14118733 |
2012-05-18 |
US09388809B2 |
2016-07-12 |
Mark Joseph Denny |
Pump having a pump inlet, a pump outlet, at least two threaded rotors and a pressure controlled valve. The pressure controlled valve is capable of controlling re-circulation of fluid from the pump outlet to the pump inlet. The pressure controlled valve can be a control valve. A multiple stage pump assembly is also provided having least two pumps arranged in series, in which at least one of the pumps is the aforementioned pump. |
200 |
DISTRIBUTOR APPARATUS WITH A PAIR OF INTERMESHING SCREW ROTORS |
US14911252 |
2013-02-09 |
US20160186750A1 |
2016-06-30 |
David Michael Walley |
A distributor apparatus 10 for distributing a plurality of portions or streams of a flowable material. The apparatus 10 comprises an enclosure 16 which locates rotors 48, 50. An inlet port 66 is provided in an upper part of the enclosure, which connects to a manifold 34 with five spaced inlets 36 through which material can pass to drive the rotors 48, 50. Material can pass round the rotors 48, 50 to a plurality of spaced outlets 38 for discharging to and from the apparatus 10. |