261 |
Dynaco Stepper Pump Hydraulic System |
US14452760 |
2014-08-06 |
US20150040554A1 |
2015-02-12 |
Gary L. Smith; Laurens MOLENAAR |
A hydraulic linear actuator system known as the “Dynaco Stepper Pump Hydraulics System” is which is an electrically driven hydraulic pump system made of durable materials for use in an electronically controllable hydraulic system comprised of: (a) an electrically driven stepper motor; (b) a hydraulic pump to pressurize a hydraulic fluid; (c) a means to connect the stepper motor to the hydraulic pump; (d) a pressurized reservoir for a quantity of hydraulic fluid; (e) a means to supply pressurized fluid to a hydraulic actuator; (f) the hydraulic actuator with a means to provide linear motion to an object; (g) the means to provide linear motion to an object; (h) a means to return lowered pressurized fluid to the reservoir. An alternative embodiment is further comprised of a controller with a series of feedback signals. |
262 |
Seal arrangement for turbomachine |
US13347805 |
2012-01-11 |
US08920136B2 |
2014-12-30 |
Craig R. Legros; Aaron M. Finke |
A turbomachine includes a motor including a rotor assembly and a stator assembly. A sleeve fluidly separates the rotor assembly from the stator assembly. The sleeve has first and second ends axially spaced from one another. In one example, first and second seals are arranged at the first end and fluidly separate the rotor assembly from the stator assembly. The second seal is arranged downstream from the first seal relative to the rotor assembly. In another example, the sleeve includes wet and dry sides. A first seal is arranged at the first end on the wet side. A drain is provided in the housing and arranged in a region downstream from the first seal. The drain fluidly connects the region to an exterior of the housing. |
263 |
Compressor |
US13338822 |
2011-12-28 |
US08905734B2 |
2014-12-09 |
Jinung Shin; Seseok Seol |
A compressor is provided having an accumulator that may form an accumulating chamber at an internal space of a shell, thereby reducing a size of the compressor, and simplifying an assembly process. A stationary shaft having a refrigerant suction passage may be directly connected to the accumulator to prevent leakage of refrigerant. Further, a center of gravity of the accumulator may correspond to a center of gravity of the compressor to reduce vibration noise of the compressor caused by the accumulator. Furthermore, an oil collecting plate may be installed at an upper end of an upper bearing to supply oil between a vein and vein slot, thereby preventing compression loss. Also, an installation area of the compressor including the accumulator may be minimized to enhance design flexibility of an outdoor device employing the compressor and minimize interference with other components, thereby facilitating installation of the outdoor device. |
264 |
SCROLL-TYPE COMPRESSOR AND CO2 VEHICLE AIR CONDITIONING SYSTEM HAVING A SCROLL-TYPE COMPRESSOR |
US14282540 |
2014-05-20 |
US20140348682A1 |
2014-11-27 |
Frank OBRIST; Oliver OBRIST; Christian SCHMAELZLE; Christian BUSCH |
A scroll-type compressor for a CO2 vehicle air conditioning system, having a mechanical drive which is connected by a drive shaft to an eccentric bearing. A movable displacement spiral is rotatably connected to the eccentric bearing and engages into a counterpart spiral such that, between the displacement spiral and the counterpart spiral, radially inwardly traveling chambers are formed in order to compress the refrigerant and discharge it into a pressure chamber. Wherein the counterpart spiral is movable in alternating fashion relative to the displacement spiral in an axial direction, wherein, between the counterpart spiral and the displacement spiral, there is arranged at least one spring for exerting an axial release force on the counterpart spiral, and at least one piston engages on the counterpart spiral, in order to exert an axial closing force on the latter, adjacent to the pressure chamber in an off-center position. |
265 |
Electric pump unit |
US12998362 |
2009-10-14 |
US08790095B2 |
2014-07-29 |
Takatoshi Sakata; Akihiko Kawano; Hiroki Kagawa |
An electric pump unit includes: a unit housing; a bearing unit provided within the unit housing; a rotary portion; and a motor stator fixed to the unit housing. The rotary portion includes: a pump driving motor shaft supported by the bearing unit such that an axial position of a center of gravity of the rotary portion falls within an axial range of the bearing unit, and a motor rotor. The motor rotor includes: a disc portion which extends radially outwards from an axial end portion of the motor shaft; and a cylindrical portion which extends from an outer circumferential portion of the disc portion towards the other axial end side and surrounds an outer circumference of the bearing unit. |
266 |
Rotary piston engine |
US13146676 |
2010-01-20 |
US08777595B2 |
2014-07-15 |
Felix Arnold; Marian Kacmar |
A rotary piston engine comprises at least two rotors, a power component and a blocking component, which interact and have spur gearings, the number of teeth of which differs by one, the rotors and an engine housing accommodating the rotors delimiting working compartments. The rotors are twisted at a defined angle to each other. The power component is driven by and rotationally connected to an electric motor arranged on the same axis. The motor has an internal stator and an external rotor, the engine housing being directly connected to the motor. The engine housing has a supporting tube section projecting into and supporting the internal stator. The external rotor has a bell which encloses the internal stator and has a center drive shaft extending through the supporting tube section and rotationally connected to the power component, the drive shaft being mounted towards the inner wall of the supporting tube section. |
267 |
Electric Machine |
US13707291 |
2012-12-06 |
US20140161648A1 |
2014-06-12 |
J. Scott Rose |
A three-phase, high voltage motor for use in a scroll compressor includes a stator core having an annular rim and a plurality of teeth extending radially inward from the rim. Aluminum windings are wrapped around teeth of the plurality of teeth of the stator core. The windings are spaced 120 electrical degrees from each other. The motor further includes a rotor body that is rotatably mounted inside the stator core and includes an external surface facing the stator core. |
268 |
Induction motor and hermetic compressor |
US12996910 |
2008-08-05 |
US08740584B2 |
2014-06-03 |
Hayato Yoshino; Koji Yabe; Kazuhiko Baba; Tomoaki Oikawa; Takahiro Tsutsumi; Yoshikazu Fujisue |
An induction motor includes a stator having a winding to be inserted to a plurality of stator slots formed along an inner circumferential edge of a stator iron core; and a rotor placed inside of the stator via a gap, the rotor includes a plurality of double squirrel-cage rotor slots formed along an outer circumferential edge of the rotor iron core and filled with conductive material and at least three air hole parts provided around a rotating shaft hole of the rotor iron core to which the rotating shaft is fitted and having an opening which is open to the rotating shaft hole; and an inner diameter part of the end ring which short circuits both edges of the conductive material filled to the double squirrel-cage rotor slot is placed to be adjacent to the air hole part in at least the end ring of one side. |
269 |
VARIABLE CAPACITY COMPRESSOR WITH LINE-START BRUSHLESS PERMANENT MAGNET MOTOR |
US13876203 |
2011-09-30 |
US20140147294A1 |
2014-05-29 |
Vincent Fargo; Pingshan Cao; Xin Li; Qiang Liu |
A variable capacity compressor assembly (20) configured for variable capacity modulation includes a housing (30), with a compressing mechanism (22) and a driving mechanism (24) disposed within the housing. The compressing mechanism includes compressing members (54, 56) that are shiftable relative to one another between loaded and unloaded states. The driving mechanism includes a line-start brushless permanent magnet motor (26). The line-start brushless permanent magnet motor includes a plurality of permanent magnets (102) that are mounted on, and extend generally axially along, a rotor core body (90) of the motor. Using the motor may reduce manufacture cost, maintain conveniently, and increase reliability. |
270 |
VACUUM PUMP MOTOR AND VACUUM PUMP INCLUDING SAME |
US13926053 |
2013-06-25 |
US20140056733A1 |
2014-02-27 |
Yoshinori OJIMA; Takashi HOZUMI; Naoya YOSHIDA; Takanori INADA; Toshiharu NAKAZAWA |
In order to provide a vacuum pump motor which is free from rotation imbalance, there is provided a vacuum pump motor 10 which is connected directly to a pump main shaft 21 of a vacuum pump 20, including a motor rotor 120 which is attached directly or indirectly to the pump main shaft 21 and balance rings 127 which are attached directly or indirectly to the pump main shaft 21 at ends thereof which are spaced apart from end portions of a rotor core 123, wherein the balance rings 127 contain a material having anticorrosion properties. |
271 |
ELECTRIC OIL PUMP |
US13606646 |
2012-09-07 |
US20130071267A1 |
2013-03-21 |
Junichi MIYAKI |
A pump housing of a gear pump and a stator of an electric motor are fastened to each other with bolts via a front insulator. Dowel pins are inserted in respective through-holes that are formed in the front insulator at equal intervals in a circumferential direction so as to be located next to insertion holes for the bolts. Respective end portions of each dowel pin are in contact with a bottom face of the pump housing and a pump-side surface of the stator core, and the pump housing and the front insulator are fixed to each other such that a slight gap is formed between the pump housing and the front insulator. |
272 |
ELECTRIC COMPRESSOR |
US13608318 |
2012-09-10 |
US20130064697A1 |
2013-03-14 |
Hiroshi FUKASAKU; Shozo HAMANA |
An electric compressor includes a housing, an electric motor, a compression mechanism, and a resin molding. The electric motor includes a coil having coil ends projecting from each of two end surfaces of the stator. Refrigerant flows through the housing that accommodates the electric motor. The resin molding covers each coil end and includes an opening that exposes part of the coil end to the interior of the housing. |
273 |
PUMP ASSEMBLIES WITH FREEZE-PREVENTIVE HEATING |
US13402047 |
2012-02-22 |
US20120211093A1 |
2012-08-23 |
David J. Grimes |
Pumps are disclosed that include a pump housing and at least one movable pumping element situated in the housing. The pumping element(s) are magnetically driven by magnetically coupling an external magnet driver (e.g., a stator) to a driven magnet located in the housing. A control circuit selectively operates the stator and a heat-producing element, so as to energize the heat-producing element especially in a potential freezing condition when the pump is not being otherwise operated. Thus, the fluid in the pump is prevented from freezing, and freeze-related pump damage is avoided. The heat-producing element can be the stator itself energized differently from when the stator is used for driving the pump. |
274 |
ENCLOSED POSITIVE DISPLACEMENT MECHANISM, PARTICULARLY FOR FLUID MACHINERY, FLUID MACHINERY COMPRISING THE MECHANISM AND ROTATING UNIT FOR THE MECHANISM |
US13496444 |
2010-09-09 |
US20120177519A1 |
2012-07-12 |
Leonardo Cadeddu |
An enclosed positive displacement mechanism including a body with an inlet and an outlet; a rotor mounted in the body and rotatable about a main axis; an orbiting piston located in the cavity, rotatable about an eccentric secondary axis and arranged to orbit around the main axis to roll on the internal side surface of the cavity; and a vane located in the cavity, slidable in the piston and mounted in the body between one inlet and one outlet so as to oscillate. The orbiting piston and the vane divide in cyclic manner the cavity into a first and a second chamber with variable volume, which are mutually complementary and communicate with the inlet and the outlet. During a portion of its oscillation, the vane passes through the piston and is in contact with the side surface of the cavity, thereby separating the chambers in a fluid-tight manner. |
275 |
COMPRESSOR |
US13338737 |
2011-12-28 |
US20120171065A1 |
2012-07-05 |
Kangwook Lee; Bumdong Sa |
A compressor is provided having an accumulator that forms an accumulating chamber in an internal space of a shell of the compressor, reducing a size of the compressor and simplifying an assembly process. A stationary shaft having a refrigerant suction passage may be directly connected to the accumulator to prevent leakage of refrigerant. Further, a center of gravity of the accumulator may correspond to a center of gravity of the compressor to reduce vibration noise of the compressor caused by the accumulator. Furthermore, both ends of the stationary shaft may be supported by a frame to reduce compressor vibration without using a separate bearing. An installation area of the compressor including the accumulator may be minimized to enhance design flexibility of an outdoor device employing the compressor and minimize interference with other components, thereby facilitating installation of the outdoor device. |
276 |
COMPRESSOR |
US13338778 |
2011-12-28 |
US20120171060A1 |
2012-07-05 |
Jinung Shin; Seseok Seol |
A compressor is provided that includes an accumulator formed in an internal space of a shell to reduce a size of the compressor. An accumulator space may be formed using the shell of the compressor, thereby simplifying an assembly process. A stationary shaft having a refrigerant suction passage may be directly connected to the accumulator to prevent leakage of refrigerant. A discharge passage may be formed in a rotating body to enhance a cooling effect of a drive motor, and an oil separating member may be installed in the discharge passage to prevent oil from being excessively leaked out. A center of gravity of the accumulator may correspond to a center of gravity of the compressor to reduce vibration noise of the compressor caused by the accumulator. An area for installing a compressor including the accumulator may be minimized to enhance design flexibility of an outdoor device. |
277 |
COMPRESSOR |
US13388112 |
2009-12-02 |
US20120141312A1 |
2012-06-07 |
Kang-Wook Lee; Bum-Dong Sa; Se-Seok Seol; Seoung-Min Kang; Jin-Ung Shin |
The present invention relates to a compressor in which a rotary member is suspended on a stationary member and rotated to compress the refrigerant. In the stationary member, top and bottom ends of a stationary shaft are fixed to improve the structural stability and assembly property. Bearing covers are provided on a contact portion of the stationary member and the rotary member such that the rotary member can be rotated when suspended on the stationary member. This stabilizes the operation. In the rotary member, a vane is integrally formed with a roller and mounted on a vane mounting hole of a cylinder-type rotor. This reduces the vibration and prevents refrigerant leakage to improve the compression effect. Although the rotary member is provided on an outer circumferential surface of the stationary member, it is possible to perform the suction and discharge of the refrigerant in the axial direction. This can lower the product height. The oil stored in a hermetic container is supplied to a lubrication passage provided between the stationary member and the rotary member, thereby reducing a friction loss between the components and achieving the operation reliability. |
278 |
COMPRESSOR |
US13387465 |
2009-12-02 |
US20120128516A1 |
2012-05-24 |
Kang-Wook Lee; Jin-Ung Shin; Geun-Hyung Lee; Seoung-Min Kang |
The present invention relates to a compressor in which a rotary member suspended on a stationary member is rotated to compress the refrigerant. As the rotary member is suspended on a first stationary member and rotatably supported on a second stationary member spaced apart from the first stationary member, components can be easily centered and assembled with the structural stability. In addition, the oil stored in a hermetic container is supplied to a lubrication passage provided between the rotary member and the stationary member. This reduces a friction loss between the components and achieves the operation reliability. Moreover, the oil is easily introduced into a vane mounting hole in which a vane is linearly reciprocated. This reduces the friction and abrasion of the vane and improves the operation reliability. |
279 |
ELECTRIC PUMP UNIT |
US13388592 |
2010-08-04 |
US20120128513A1 |
2012-05-24 |
Takatoshi Sakata; Akihiko Kawano; Takeo Iino; Naohito Yoshida |
An electric pump unit for a transmission, which supplies a hydraulic pressure to the transmission, includes: a pump which takes in and discharges oil; and a pump driving electric motor including a motor shaft connected to the pump, a motor rotor fixedly provided on the motor shaft, and a motor stator disposed around a circumference of the motor rotor. The pump and the electric motor are integrated with a lid that tightly closes an opening in a recess portion which is formed on a transmission housing of the transmission and into which the oil is introduced, and are accommodated within the recess portion. |
280 |
COMPRESSOR |
US13388116 |
2009-12-02 |
US20120128511A1 |
2012-05-24 |
Kang-Wook Lee; Jang-Woo Lee; Bum-Dong Sa; Jin-Ung Shin |
The present invention relates to a compressor in which a rotary member suspended on a stationary member is rotated to compress the refrigerant. The rotary member is suspended on a first stationary member and rotatably supported on a second stationary member spaced apart from the first stationary member to thereby achieve the structural stability, improve the operation reliability and reduce the vibration. The components can be easily centered and assembled with an excellent assembly property. In addition, a mounting structure of an elastically-supported vane is improved to ensure the lubrication performance and the operation reliability. Moreover, a mounting structure of a roller-incorporated vane is improved to reduce vibration and prevent refrigerant leakage, which leads to high compression efficiency. |