221 |
SCROLL PUMP |
US14411701 |
2013-06-10 |
US20150176584A1 |
2015-06-25 |
Nigel Paul Schofield |
The present invention provides a scroll pump comprising: a scroll mechanism having an orbiting scroll and a fixed scroll; a drive shaft having a concentric shaft portion and an eccentric shaft portion connected to the orbiting scroll. The shaft is arranged to be driven by a motor so that rotation of the shaft imparts an orbiting motion to the orbiting scroll relative to the fixed scroll for pumping fluid along a flow path from an inlet to an outlet of the scroll mechanism. An axial lip seal is located between the orbiting scroll and the fixed scroll for resisting leakage of fluid from outside the scroll mechanism into the flow path. |
222 |
Compressor |
US13399395 |
2012-02-17 |
US08945265B2 |
2015-02-03 |
Akihiro Nakashima; Shinichi Sato; Akio Saiki; Kazuo Kobayashi |
A compressor compressing a fluid including lubricating oil includes, on the discharge side thereof, a first separation chamber for separating the lubricating oil by generating a swirling flow in the fluid. The first separation chamber includes: a circumferential wall; an inflow port that is formed in the circumferential wall and causes the fluid to flow into the first separation chamber; and a guiding plate extending from the circumferential wall. The guiding plate extends so as to face the inflow port in a direction where the fluid flows from the inflow port into the first separation chamber, and so as to deflect the fluid flow from the inflow port to guide it along an inner circumferential surface of the circumferential wall. |
223 |
Compressor having first and second rotary member arrangement using a vane |
US13055040 |
2008-11-28 |
US08894388B2 |
2014-11-25 |
Kangwook Lee; Jin-Ung Shin; Yongchol Kwon; Geun-Hyoung Lee |
A rotary compressor is provided that includes an electric motor that supplies electric power and a compression mechanism that compresses a refrigerant while first and second rotary members rotate upon receipt of the electric power from the electric motor. More particularly, the compressor has a compact design by forming a compression space within the compressor by a rotor of the electric motor that drives the compressor, maximizes compression efficiency by minimizing friction loss between rotating elements within the compressor, and has a structure that minimizes leakage of the refrigerant within the compression space. |
224 |
Supercharger cooling |
US14042196 |
2013-09-30 |
US08752531B2 |
2014-06-17 |
James E. Bell; Jan-Erik Oscarsson |
A supercharger cooling system provides a path for coolant from an air/coolant heat exchanger to a supercharger intercooler and then loops around the supercharger housing proximal to a hot outlet end of the supercharger and back to the heat exchanger. The heat exchanger may be a dedicated air/coolant heat exchanger or be a vehicle radiator. The intercooler is sandwiched between the supercharger and intake manifold and cools the flow of hot compressed air from the supercharger into the intake manifold. The supercharger cooling loop cools the bearings and seals, the forward ends of the male and female rotors, and the male and female rotor gears. The cooling loop is preferably located between the supercharger rotors and the rotor drive gears to form a barrier to heat. A dedicated pump cycles the coolant flow and restrictions control the flow of coolant to the supercharger. |
225 |
Supercharger Cooling |
US14042196 |
2013-09-30 |
US20140130782A1 |
2014-05-15 |
James E. Bell; Jan-Erik Oscarsson |
A supercharger cooling system provides a path for coolant from an air/coolant heat exchanger to a supercharger intercooler and then loops around the supercharger housing proximal to a hot outlet end of the supercharger and back to the heat exchanger. The heat exchanger may be a dedicated air/coolant heat exchanger or be a vehicle radiator. The intercooler is sandwiched between the supercharger and intake manifold and cools the flow of hot compressed air from the supercharger into the intake manifold. The supercharger cooling loop cools the bearings and seals, the forward ends of the male and female rotors, and the male and female rotor gears. The cooling loop is preferably located between the supercharger rotors and the rotor drive gears to form a barrier to heat. A dedicated pump cycles the coolant flow and restrictions control the flow of coolant to the supercharger. |
226 |
INJECTION MOLDED SEALS FOR COMPRESSORS |
US13948226 |
2013-07-23 |
US20140023541A1 |
2014-01-23 |
Matthew J. Heidecker; Jeffrey Jay Lichty; Dennis D. Pax; Dale Joseph McEldowney; Todd A. Manning; Natalie M. Gehret |
Improved seal components for compressors, such as scroll compressors, are provided. Such seal components have a molded composite on a seal plate that is preformed, which serves as an improved face seal for floating seal assemblies. The preformed seal plate may be formed of a sintered powder metal or cast gray iron. The molded composite comprises a thermoplastic polymer and at least one reinforcing or lubricating particle. Methods of forming such seal components for a scroll compressor by injection molding are also provided. |
227 |
SCROLL FLUID MACHINE |
US13934945 |
2013-07-03 |
US20130294956A1 |
2013-11-07 |
Hiroshi ITO; Shiro TANIGAWA; Youhei MIDORIKAWA |
A scroll fluid machine includes a revolving scroll in which a revolving wrap stands upright on an end plate supported revolvably on a drive shaft, and a fixed scroll which is provided opposite the revolving scroll and in which a fixed wrap stands upright on an end plate. The revolving and fixed wraps overlap to form a compression chamber for compressing a fluid by causing the revolving scroll to revolve. The scroll fluid machine further includes a rod-shaped member attached to the end plate of the revolving scroll and extending to a rear surface side of the fixed scroll, which is a side not opposing the revolving scroll. A revolving plate is attached to the rod-shaped member, provided with a pin crank mechanism, and supported revolvably on the drive shaft. The revolving plate is provided with a sealing unit that seals the compression chamber in an axial direction. |
228 |
Scroll-type fluid machine including pressure-receiving piece |
US12297718 |
2007-04-10 |
US08047823B2 |
2011-11-01 |
Yuji Takei |
A scroll-type fluid machine has a movable scroll (50) that forms pressure chambers (52) in between the movable scroll (50) and a fixed scroll (40) and is orbitable relative to the fixed scroll (40), a support wall (14) that is provided for the housing (10) and supports thrust load transmitted from the movable scroll (50), and a thrust bearing (74) disposed in between the movable scroll (50) and the support wall (14). The thrust bearing (74) includes a ring-shaped support face (64) formed in the support wall (14), a retention plate (76) fixed onto the support face (64), a retention hole (86) that is formed in the retention plate (76) and opens in both faces of the retention plate (76), and a pressure-receiving piece (88) retained in a retention hole (86) and brought into surface contact with both the support face (64) and the movable scroll (50). |
229 |
Scroll Fluid Machine |
US13061669 |
2009-08-25 |
US20110158839A1 |
2011-06-30 |
Akiyoshi Higashiyama; Hisashi Suzuki |
There is provided a scroll fluid machine in which sealability is improved by uniforming a deformed shape of a fastened face of a spindle frame with respect to a fixed scroll, and compression performance is improved. The machine is characterized by comprising a scroll unit disposed in a container, a spindle frame that is interfitted in the container, fastened to the fixed scroll by fastening means at an outer circumferential portion, and houses the movable scroll in a space created between the spindle frame and the fixed scroll, a refrigerant path that is formed in the outer circumferential portion to penetrate the fixed scroll and the spindle frame in an axial direction to open in a rear face of the spindle frame, and guides a high-pressure refrigerant compressed and discharged by the scroll unit to the rear face side of the spindle frame, and a countersunk section that is formed in an opening rim of the refrigerant path of the spindle frame. |
230 |
COMPRESSOR |
US13054970 |
2008-11-27 |
US20110123381A1 |
2011-05-26 |
Kangwook Lee; Jin-Ung Shin; Yongchoi Kwon; Geun-Hyoung Lee |
The present invention provides a compressor, comprising: a stator (220); a cylinder type rotor (230) rotating within the stator (220) by a rotating electromagnetic field from the stator (220), with the rotor defining a compression chamber inside; a roller (242) rotating within the compression chamber of the cylinder type rotor (230) by a rotational force transferred from the rotor, with the roller (242) compressing refrigerant during rotation; an axis of rotation (241) integrally formed with the roller (242) and protruding from one side of the roller (242) in an axial direction; a vane (243) dividing the compression chamber into a suction region where refrigerant is sucked in and a compression region where the refrigerant is compressed/discharged from, with the vane (243) transferring the rotational force from the cylinder type rotor (230) to the roller (242); and a shaft cover (233) and a cover (243) joined to the cylinder type rotor (230) in an axial direction and forming the compression chamber for compression of refrigeration therebetween, the shaft cover (233) including a suction port (233a) used for refrigerant suction, the cover receiving the axis of rotation therethrough. |
231 |
COMPRESSOR |
US13054981 |
2008-11-28 |
US20110123366A1 |
2011-05-26 |
Kangwook Lee; Jin-Ung Shin; Yongchol Kwon; Geun-Hyoung Lee |
A compressor eliminates sliding contacts between a cylinder (132) and a roller (142) to minimize the mixing of lubricating oil into refrigerant, and is structured to evenly distributing lubricating oil over sliding contact portions of a compressor actuator by pumping the oil from the inside on an axis of rotation (141), the compressor comprising: a hermetic container (110) storing oil at a lower portion; a stator (120) mounted within the hermetic container (110); a cylinder type rotor (130) rotating within the stator (120) by a rotating electromagnetic field from the stator (120), with the rotor (130) defining a compression chamber inside; a roller (142) rotating within the compression chamber of the cylinder type rotor (130) by a rotational force transferred from the rotor (130), with the roller (142) compressing refrigerant during rotation; an axis of rotation (141) integrally formed with the roller (142) and extending in an axial direction; a vane (143) dividing the compression chamber into a suction region where refrigerant is sucked in and a compression region where the refrigerant is compressed/discharged from, with the vane (143) transferring the rotational force from the cylinder type rotor to the roller (142); and oil feed passages provided to the axis of rotation (141) and the roller (142), with the oil feed passage feeding oil that is pumped along the motion of the axis of rotation (141) to an area where two or more members are slid onto within the compression chamber. |
232 |
COMPRESSOR |
US13054963 |
2008-11-27 |
US20110120178A1 |
2011-05-26 |
Kangwook Lee; Jin-Ung Shin; Yongchol Kwon; Geun-Hyoung Lee |
The present invention provides a compressor, comprising a stator (120); a cylinder type rotor (131) rotating within the stator (120) by a rotating electromagnetic field from the stator (120), with the rotor defining a compression chamber inside; a roller (142) rotating within the compression chamber of the cylinder type rotor (131) by a rotational force transferred from the rotor (131), with the roller (142) compressing refrigerant during rotation; a vane (146) dividing the compression chamber into a suction region where refrigerant is sucked in and a compression region where the refrigerant is compressed/discharged from, with the vane (143) transferring the rotational force from the cylinder type rotor (131) to the roller (142); an axis of rotation (141) integrally extended from the roller (142) in an axial direction; and a suction passage (141a) sucking refrigerant into the compression chamber through the axis of rotation and the roller. |
233 |
COMPRESSOR |
US13055020 |
2008-11-27 |
US20110120174A1 |
2011-05-26 |
Kangwook Lee; Jin-Ung Shin; Yongchol Kwon; Geun-Hyoung Lee |
The present invention relates to a rotary compressor comprising an electric motor part for supplying electric power and a compression mechanism part for compressing a refrigerant while first and second rotary members (130,140) rotate upon receipt of the electric power from the electric motor part, and more particularly to, a compressor which enables a compact design by forming a compression space within the compressor by a rotor of an electric motor part driving the compressor, maximizes compression efficiency by minimizing friction loss between rotating elements within the compressor, and has a structure capable of minimizing leakage of refrigerant within the compression space. |
234 |
Screw compressor having asymmetric seal around rotor axis |
US11631562 |
2004-10-06 |
US07802974B2 |
2010-09-28 |
David M. Rockwell; Frederick L. Miller, Jr.; Yan Tang |
A compressor includes a male rotor (26) having a screw-type boy portion (30) extending from a first end (31) to a second end (32) and held within a housing assembly for rotation about a first rotor axis (500). A female rotor (27, 28) has a screw-type female body portion (33, 34) meshed with the male body portion and extending from a first end (35, 36) to a second end (37, 38) and held within the housing assembly for rotation about a second rotor axis (501, 502). An end seal (120) has a first surface (126) engaging the female body portion first end and being asymmetric around the second axis. |
235 |
Seal member for scroll compressors |
US11120273 |
2005-05-02 |
US07314357B2 |
2008-01-01 |
Anil Gopinathan; Frederick F. Fox |
A scroll compressor having a housing with a motor-compressor unit disposed therein. The motor-compressor unit includes a crankcase, stator, rotor, and drive shaft assembly. The motor-compressor unit further includes a fixed scroll member and an orbiting scroll member. The scroll compressor has a separator plate disposed within the housing and secured to the fixed scroll member by a plurality of fasteners. A seal member is provided between the separator plate and the fixed scroll member and is disposed radially outwardly of at least one of the fasteners. In an exemplary embodiment, the seal member is an O-ring. |
236 |
Rotary blower with forced external air cooling |
US10264470 |
2002-10-04 |
US06817844B1 |
2004-11-16 |
Qi Wang |
A rotary blower with forced external air cooling having multiple interconnected and synchronized parallel multi-lobe rotors with the same number of straight lobes for propelling flow from a suction port to a discharge port of an inner casing without internal compression. The blower also has an outer cover with cooling air inlet and outlet openings and added centrifugal cooling fans mounted on the rotor shafts adjacent to the cooling air inlet openings for circulating cooling air through the space between the outer cover and the inner casing. The blower further utilizes wearable strip seal devices applied on the rotors for preventing internal leakage and accidental mechanical contact. |
237 |
Double-cylinder two-stage compression rotary compressor |
US09959824 |
2001-11-08 |
US06616428B2 |
2003-09-09 |
Toshiyuki Ebara; Masaya Tadano; Takashi Yamakawa; Atsushi Oda |
A double-cylinder two-stage compression rotary compressor (10) comprising a first and a second compressors (32 , 34), driven by an electric motor (14), all accommodated in a sealed container (12). The first and the second compressor (32, 34) have respective first and second cylinders (40, 42) accommodating first and second rollers (48, 50), fitted on respective first and second eccentric cams (44, 46). The inner spaces of the first and second cylinders are partitioned by respective first and second vanes (52, 54) to form suction spaces and compression spaces. The two cylinders are separated by an intermediate partition panel (38), which has a central bore (36) for passing therethrough a shaft (16) of the motor (14). The center of the bore (36a) of the intermediate partition panel (38) facing the first roller (48) is offset away from the center-of the shaft (16) to an angular position having a central angle about the center of the shaft in the range of 90±45 degrees with reference to the first vane (52), and the center of the bore (36b) of the intermediate partition panel (38) facing the second roller (50) is offset about the center of the shaft (16) by an angle in the range of 270-360 degrees to increase the sealing areas of the rollers with the intermediate partition panel, thereby decreasing the leakage of the refrigerant gas and increasing volumetric efficiency and pressure efficiency of the compressor. |
238 |
Compressor |
US10216138 |
2002-08-09 |
US20030068246A1 |
2003-04-10 |
Kazuya
Kimura; Ken
Suitou; Hiroyuki
Gennami; Kazuhiro
Kuroki; Satoshi
Egashira; Satoru
Egawa; Yoshikazu
Fukutani |
A compressor comprises a housing assembly, a compression mechanism and a sealing member. The housing assembly has a first housing member and a second housing member coupled to each other. The first housing member has an opening end surface. The second housing member has an opening end surface. The compression mechanism is disposed in the first housing member and compresses gas supplied to the compressor. The sealing member includes a first portion and a second portion. The first portion is interposed between the opening end surface of the first housing member and the opening end surface of the second housing member. The second portion of the sealing extends radially inwardly from the first portion to be interposed between the compression mechanism and the second housing member. |
239 |
Double-cylinder two-stage compression rotary compressor |
US09959824 |
2001-11-08 |
US20020159904A1 |
2002-10-31 |
Toshiyuki
Ebara; Masaya
Tadano; Takashi
Yamakawa; Atsushi
Oda |
A double-cylinder two-stage compression rotary compressor (10) comprising a first and a second compressors (32, 34), driven by an electric motor (14), all accommodated in a sealed container (12). The first and the second compressor (32, 34) have respective first and second cylinders (40, 42) accommodating first and second rollers (48, 50), fitted on respective first and second eccentric cams (44, 46). The inner spaces of the first and second cylinders are partitioned by respective first and second vanes (52, 54) to form suction spaces and compression spaces. The two cylinders are separated by an intermediate partition panel (38), which has a central bore (36) for passing therethrough a shaft (16) of the motor (14). The center of the bore (36a) of the intermediate partition panel (38) facing the first roller (48) is offset away from the center of the shaft (16) to an angular position having a central angle about the center of the shaft in the range of 90null45 degrees with reference to the first vane (52), and the center of the bore (36) of the intermediate partition panel (38) facing the second roller (50) is offset about the center of the shaft (16) by an angle in the range of 270-360 degrees to increase the sealing areas of the rollers with the intermediate partition panel, thereby decreasing the leakage of the refrigerant gas and increasing volumetric efficiency and pressure efficiency of the compressor. |
240 |
Scroll-type apparatus |
US09576883 |
2000-05-24 |
US06464479B1 |
2002-10-15 |
Alan John Saunders |
A vacuum pump of the scroll-type has a housing, a first fixed scroll member having an end plate and an involute spiral wrap attached thereto and a second orbital scroll member having an end plate and an involute spiral wrap attached thereto. The scroll members are arranged in the housing such that their respective wraps intermesh so that on orbital movement of the second scroll member relative to the first scroll member a volume of gas will be trapped and urged from one end of the wraps to the other end. A shaft for driving the second scroll member and wherein a member is provided which is adapted to separate the vacuum space in the housing from the shaft and also to prevent the second scroll member from rotating the said member being made from a polymer material. |