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| Number | Title | Issue Date |
| 8182251 | Expander-compressor unit An expander-compressor unit (200A) includes a closed casing (1), a compression mechanism (2), an expansion mechanism (3), a shaft (5), and an oil pump (6). The shaft (5) couples the compression mechanism (2) to... | 05/22/2012 |
| 8070465 | Oil injection control in a compressor with variable-speed coils This refrigerating compressor comprises a sealed chamber delimiting a suction volume and a compression volume arranged respectively either side of a body contained in the chamber, and an oil injection circuit arranged to inject oil into the compression volume. The o... | 12/06/2011 |
| 7927084 | Magnetic trap for ferrous contaminants in lubricant A compressor is having a tubular vertical shaft, which rotates about its vertical axis, a cylinder block for supporting the tubular vertical shaft, a rotor for driving the rotation of the tubular vertical shaft, and a stator affixed to the cylinder block. Lubricant ... | 04/19/2011 |
| 7442018 | Compressor having an oil residue pool A compressor comprises, in a container body, an electric element, and a compressive element driven by the electric element. An oil storage is provided in the bottom, and an oil pump is provided to suck up oil from the oil storage. The oil pump includes a cylinder fi... | 10/28/2008 |
| 7438541 | Hermetic rotary compressor A hermetic rotary compressor operates two cylinders simultaneously in the regular operation; however it halts operating one of the cylinders when it selects an operation with a half capacity. A vane room of the halted cylinder is air-tightly sealed with respect to l... | 10/21/2008 |
| 7390180 | Oil pumping device of hermetic compressor A hermetic compressor uses an oil pump that includes a trochoid gear. Therefore, regardless of the rotation speed of a driving motor of the compressor, a sufficient amount of oil can always be pumped. The oil pump unit may include a plurality of suction holes with o... | 06/24/2008 |
| 7384250 | Oil discharge preventing apparatus of scroll compressor An oil discharge preventing apparatus of a scroll compressor comprises: a balance weight coupled to a rotor of a driving motor so as to offset an unbalance generated when an orbiting scroll performs an orbiting motion by receiving a rotation force of the driving mot... | 06/10/2008 |
| 7351045 | Rotational inhibitor for compressor lubricant A compressor comprises an oil storage provided in the bottom of a container body. An oil cup is fixed in communication with the oil storage. An oil pump is attached to the lower end of a shaft and inserted into the oil cup. A rotation inhibitor is provided including... | 04/01/2008 |
| 7331774 | Back pressure control mechanism of orbiting scroll in scroll compressor There is provided, at a low cost, a small-size and lightweight scroll compressor capable of preventing a decrease in compression efficiency by utilizing a medium pressure between a suction pressure and a discharge pressure as a back pressure. An independent minute g... | 02/19/2008 |
| 7322809 | Rotary compressor with sealing portions and oil-supply groove In a rotary compressor to perform oil supplying to bearings through a main oil-supply passage formed in a drive shaft by making use of pressure differential between high-level pressure and low-level pressure in the casing, sealing portions having air-tight structure... | 01/29/2008 |
| 7299792 | Centrifugal compressor with improved lubrication system for gear-type transmission A centrifugal supercharger includes a case presenting a compressor chamber and a transmission chamber. An impeller in the compressor chamber is mounted to a shaft that extends into the transmission chamber. The impeller shaft is drivingly connected to a power input ... | 11/27/2007 |
| 7300266 | Orbiting vane compressor incorporating orbiting vane with oil supply function Disclosed herein is an orbiting vane compressor incorporating an orbiting vane with oil supply function that is capable of performing more smooth orbiting movement. The orbiting vane has a compression unit comprising an orbiting vane having a boss formed in the cent... | 11/27/2007 |
| 7234924 | Rotary combustion engine with device for conveying lubricating oil A rotary combustion engine with one or more working units, which include a peripheral housing, a front housing plate, a rear housing plate on the output side, an eccentric shaft, and a piston, where the eccentric shaft includes an eccentric, and front and rear seali... | 06/26/2007 |
| 7223082 | Rotary compressor A so-called internal intermediate pressure multistage compression type rotary compressor makes it possible to prevent the pressure inside a roller from inconveniently increasing and also to permit smooth and reliable supply of oil into a cylinder of a second rotary ... | 05/29/2007 |
| 7217110 | Compact rotary compressor with carbon dioxide as working fluid A rotary compressor for compressing a working fluid includes a housing having an oil sump. A stationary shaft extends into the housing and includes a longitudinal passage. The longitudinal passage has an oil inlet in fluid communication with the oil sump. A working ... | 05/15/2007 |
| 7214044 | Compressor having an oil passage which one end is connected to oil collecting groove and other end is opened to cover end surface of bearing A compressor for suppressing leakage of lubricating oil has a casing, a motor and a scroll mechanism coupled to the motor by a drive shaft. The drive shaft is rotatably supported by a bearing. The lubricating oil is supplied between the drive shaft and the bearing. ... | 05/08/2007 |
| 7204680 | Oil supply device of scroll compressor An oil supply device of a scroll compressor includes a pumping unit mounted at a lower side of a rotating shaft and pumping oil stored at a lower portion of a casing according to rotation of the rotating shaft; an oil supply passage formed in a longitudinal directio... | 04/17/2007 |
| 7195468 | Scroll compressor having frame fixing structure and frame fixing method thereof Disclosed are a scroll compressor having a frame fixing structure and a frame fixing method of the scroll compressor. The scroll compressor comprises an upper frame installed at an inner upper portion of a hermetic container; a fixed scroll fixed to an upper portion... | 03/27/2007 |
| 7192263 | Pump and ink jet printer mounting the pump The pump is provided with a housing 31, a rotor 40, and a separating member 50. Rotor 40 and separating member 50 are rotated within housing 40. Separating member 50 separates the cavity of housing 31 into a divided space 77a, a divided space 7b and a ... | 03/20/2007 |
| 7186100 | Variable capacity rotary compressor A variable capacity rotary compressor allowing oil to be smoothly supplied to compressing elements, regardless of a rotating direction of a rotating shaft. The variable capacity rotary compressor includes a rotating shaft which is rotated in a forward direction or a... | 03/06/2007 |
| 7186099 | Inclined scroll machine having a special oil sump A scroll-type compressor is provided in an inclined or inverted position with an oil sump disposed adjacent to a gas inlet of the scroll wraps to allow droplets of oil to be entrained in the gas being compressed so that the oil droplets in the gas can cool the scrol... | 03/06/2007 |
| 7186095 | Compressor mounting bracket and method of making A mounting bracket for a compressor. The mounting bracket includes a mounting member and an elongate bracing member. The mounting member is secured to the housing of the compressor has a central support section in substantial registry with the housing. The mounting ... | 03/06/2007 |
| 7179069 | Motor compressor lubrication A rotary machine is powered by a drive shaft having a bore extending through it. A single piece lubricant flinger is disposed within the bore to form a lubricant pump. The lubricant flinger includes an upper plate located within the bore and a washer located adjacen... | 02/20/2007 |
| 7163383 | Compressor having alignment bushings and assembly method A compressor assembly including a compression mechanism having a main bearing and a plurality of first pilot holes, and an electric motor comprising a rotor disposed within a stator. The stator has a plurality of second and third pilot holes. Each of the first pilot... | 01/16/2007 |
| 7140852 | Scroll compressor having an oil reservoir surrounding the discharge chamber and an oil separator in the rear housing A scroll compressor includes a housing, a discharge passage, a rotary shaft, a fixed scroll, a movable scroll, an oil separator and an oil reservoir for compressing refrigerant gas containing lubricating oil. The housing has a rear housing which has a partition wall... | 11/28/2006 |
| 7134853 | Scroll compressor having a flow rate controlling member inserted into a high pressure fluid introducing passageway A flow rate controlling member, provided with a spiral passageway formed on its outer periphery, is inserted into a high pressure fluid introducing passageway formed in an end plate of a movable scroll for the introducing of fluid from a fluid feeding path into a th... | 11/14/2006 |
| 7094043 | Compressor having counterweight shield A compressor having a housing and mutually engaged stationary and orbiting scrolls. A crankcase is disposed between a motor and the orbiting scroll. A shaft is operably connected with the orbiting scroll and extends through the crankcase and the motor. The end of th... | 08/22/2006 |
| 7074023 | Scroll compressor A scroll compressor enabling decrease of a flow path loss in a communication groove extending from a suction port toward a suction chamber to decrease a loss of suction power is disclosed. In the scroll compressor, a movable scroll is provided so as to perform a swi... | 07/11/2006 |
| 7063518 | Bearing support and stator assembly for compressor A compressor assembly including a compression mechanism, a motor including rotor and a laminated stator and a shaft is provided. The shaft is operably coupled to the compression mechanism and the rotor. The shaft extends outwardly from the motor opposite the compres... | 06/20/2006 |
| 7044723 | Scroll compressor having a throttle pin moving in the longitudinal hole of the oil supply passage A scroll compressor supplies an optimum quantity of lubricating oil to a refrigerant compressing section and restrains a decrease in compression efficiency caused by gas leakage. An oil supply passage (35) whose discharge port is open to a joint surface of a ... | 05/16/2006 |
| 7044717 | Lubrication of a hermetic carbon dioxide compressor A hermetic compressor which uses carbon dioxide as the working fluid. The compressor includes a motor and a compression mechanism operatively coupled by a drive shaft supported by a bearing. The drive shaft includes a radially extending bore in fluid communication w... | 05/16/2006 |
| 7040880 | Horizontal rotary compressor A horizontal rotary compressor is configured such that an electrically powered compressor body is accommodated in a horizontally long hermetic receptacle in which a lubricating oil is accumulatively preserved, an interior of the hermetic receptacle is partitioned by... | 05/09/2006 |
| 7021912 | Scroll fluid machine A second frame is arranged between a first frame and an orbiting scroll, and a central space and an outer peripheral space are sealed off by a seal portion, which is formed between an end surface of a shaft support of the orbiting scroll and the second frame. Also, ... | 04/04/2006 |
| 7018184 | Compressor assembly having baffle A compressor assembly having a housing with a first inlet. A compressor mechanism within the housing has a second inlet leading to a working space wherein gas is compressed. A baffle surface is extends from proximate the first inlet to proximate the second inlet and... | 03/28/2006 |
| 7018185 | Liquid recovery method and system for compression mechanism Lubricating liquid fed from a reservoir to a compression mechanism is collected by a circumferential wall that surrounds the drive shaft of the compression mechanism and rotates synchronously with it immediately after liquid is discharged into the space inside the h... | 03/28/2006 |
| 7008200 | Gerotor apparatus for a quasi-isothermal brayton cycle engine According to one embodiment of the invention, a gerotor apparatus includes an outer gerotor having an outer gerotor chamber, an inner gerotor, at least a portion of which is disposed within the outer gerotor chamber, and a synchronizing apparatus operable to control... | 03/07/2006 |
| 6976559 | Piston compressor, particularly hermetically enclosed refrigerant compressor The invention relates to a piston compressor, particularly a hermetically enclosed refrigerant compressor, with a crank drive, having a crank shaft with an eccentric crank pin and an oil channel arrangement, and a connecting rod with a first piston-side connecting r... | 12/20/2005 |
| 6960070 | Compressor In order to improve a compressor for refrigerant, comprising an outer housing, a scroll compressor arranged in the outer housing and having a first compressor member arranged stationarily in the outer housing and a second compressor member which is movable relative ... | 11/01/2005 |
| 6953330 | Scroll vacuum pump A scroll vacuum pump has an orbiting scroll and fixed scrolls. The orbiting scroll is rotatably mounted to an eccentric portion of a driving shaft and revolved by the driving shaft, so that a gas is sucked into a compression chamber between the orbiting scroll and f... | 10/11/2005 |
| 6896493 | Scroll compressor Disclosed is a scroll compressor enabling a significant height reduction to use a space of a system efficiently when the scroll compressor is applied to such systems as a refrigerator, an air conditioner, and the like. A compressor housing forms an exterior, a crank... | 05/24/2005 |
