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| Number | Title | Issue Date |
| 8156757 | High capacity chiller compressor A high efficiency, low maintenance single stage or multi-stage centrifugal compressor assembly for large cooling installations. The assembly is highly efficient by virtue of a variable frequency drive (VFD) that drives a permanent magnet motor and matches compressor... | 04/17/2012 |
| 8028540 | Four terminal hermetic bushing for use with single-phase electrical service line and three-winding motor A three-winding induction motor supplies shaft power to an air-conditioning or refrigeration compressor, where both motor and compressor are hermetically sealed, and the wall of the hermetic enclosure has an electrical bushing in the wall of the enclosure, which bus... | 10/04/2011 |
| 7591147 | Electric motor cooling jacket resistor A cooling jacket resistor includes a passageway incorporated into a wall and across the entire inside length of a cooling jacket from an inside of the cooling jacket. The passageway may include at least one sump and may have a depth that inclines from a first to a s... | 09/22/2009 |
| 7451616 | Refrigerating apparatus with turbo compressor A refrigerating apparatus, including a turbo compressor including a driving motor and a plurality of bearing members supporting a rotation axis of the driving motor; a condenser provided to condense a refrigerant gas compressed from the turbo compressor; a refrigera... | 11/18/2008 |
| 7355308 | Mover combination with two circulation flows A circulation system (330) for a mover (328) includes a fluid source (360) that directs a first fluid (356) into a first inlet (364A) of the mover (328) and a second fluid (358) into a second inlet (366A) of th... | 04/08/2008 |
| 7348526 | Microwave-assisted chromatography preparation An instrument and associated method are disclosed for preparing samples for column chromatography. The method includes the steps of applying microwave energy to a sample composition containing at least one solvent to encourage a chemical reaction and generate desire... | 03/25/2008 |
| 7342332 | Air bearing and motor cooling A motor includes a housing including separate motor and bearing cooling inlets. A motor is arranged within the housing and includes a stator and rotor assembly that is supported on air bearings. The motor cooling inlet is in fluid communication with the stator, and ... | 03/11/2008 |
| 7338264 | Recesses for pressure equalization in a scroll compressor A scroll compressor is provided with spaced grooves in a base of one of the two scroll members. A recess is formed in a wrap tip of the other scroll member. The recess in the wrap tip bridges a space between the grooves of the other scroll member. This bridging equa... | 03/04/2008 |
| 7338263 | Method and apparatus for compressor re-manufacture In a method of repairing a scroll compressor, the casing 100 of the compressor is cut open by making two transverse cuts through the casing to give access to the internal components of the compressor. The casing 100 is then resealed, using two annular ... | 03/04/2008 |
| 7337829 | Cooling unit A cooling unit has a heat receiving unit that receives heat from a body radiating heat; a radiator disposed at a distance from the heat receiving unit and radiating recovered heat; a liquid coolant transporting heat generated at the heat receiving unit to the radiat... | 03/04/2008 |
| 7331196 | Refrigerating apparatus and refrigerator In the case that heat absorbing means that function in selectively different temperature ranges, are provided in a refrigerating cycle, an object is to provide a refrigerating apparatus capable of suppressing the deterioration of efficiency in either temperature ran... | 02/19/2008 |
| 7293425 | Thermo siphon chiller refrigerator for use in cold district In order to provide a thermo-siphon chiller refrigerator for use in cold districts which performs natural refrigerant-circulation refrigerating cycle and also can perform a forced refrigerant-circulation refrigerating cycle when outside air temperature is high by us... | 11/13/2007 |
| 7285881 | Superconducting device comprising a cooling unit for cooling a rotating, superconductive coil The supraconductor device contains a rotor, which can rotate about a rotational axis, with a supraconductive coil in a heat conducting coil support. The coil support comprises a central cylindrical cavity. A cooling head, which is located outside of the rotor, of a ... | 10/23/2007 |
| 7282875 | System and method for electric motor control An electric motor control system includes a housing and a motor disposed within the housing. The electric motor control system also includes an actuator operatively coupled to the motor and configured to operate in response to an operation of the motor. The electric... | 10/16/2007 |
| 7281910 | Motor driven compressor A motor driven compressor having a motor for driving a compression mechanism includes a connecting portion for connecting between an external terminal for supplying electricity to the motor and a wire end portion of a stator of the motor. The connecting portion is l... | 10/16/2007 |
| 7246498 | Refrigerating apparatus A liquid injection type scroll compressor is used to a refrigerating apparatus using hydrocarbon fluoride refrigerant which does not contain chlorine (HFC-125/HFC-143a/HFC-134a) as an operating fluid and an amount of an injected liquid is controlled ac... | 07/24/2007 |
| 7233912 | Method and apparatus for vending a combination of products A method and apparatus for delivering a plurality of products from a vending machine is disclosed. The method generally allows an offer for a package to be output, in which the package defines a plurality of products, including a selected product. An apparatus is al... | 06/19/2007 |
| 7216498 | Method and apparatus for determining supercritical pressure in a heat exchanger A method and apparatus to determine the pressure of a supercritical refrigerant within a heat exchanger of a transcritical vapor compression system. A plurality of measurements, e.g., temperature, are obtained at spaced locations on the heat exchanger and the locati... | 05/15/2007 |
| 7207187 | Inverter-integrated motor for an automotive vehicle A bus-bar integrated plate and outer frame section, arranged into a double-deck structure and having numerous bus bars molded with a resin molding plate portion, is provided as a wiring for connecting power switching elements and a smoothing capacitor, fixed on an o... | 04/24/2007 |
| 7201569 | Screw compressor Disclosed is a screw compactor comprising two screw rotors which are disposed in screw rotor bores inside a compressor housing and compress a coolant that enters at a coolant inlet and discharge said coolant at a coolant outlet, and a coolant inlet that is arranged ... | 04/10/2007 |
| 7191605 | Floating loop method for cooling integrated motors and inverters using hot liquid refrigerant A method for cooling vehicle components using the vehicle air conditioning system comprising the steps of: tapping the hot liquid refrigerant of said air conditioning system, flooding a heat exchanger in the vehicle component with said hot liquid refrigerant, evapor... | 03/20/2007 |
| 7182585 | Electrically driven flow compressor The invention relates to an electrically driven flow compressor comprising a drive (2, 3)—and a flow compressor and a converter (5) for electrical supply and control of the drive unit (2, 3).According to the invention, the converter (5)... | 02/27/2007 |
| 7181928 | System and method for cooling a compressor motor Apparatus and methods are provided for cooling motors used to drive gas and air compressors. In particular, the cooling of hermetic and semi-hermetic motors is accomplished by a gas sweep using a gas source located in the low-pressure side of a gas compression circu... | 02/27/2007 |
| 7174733 | Vehicular air-conditioner A vehicular air-conditioner wherein when a detected temperature of an inverter temperature sensor (22g) exceeds a predetermined value, an inverter (6) driving an electric motor (4) of an electric compressor (3) operates in an overh... | 02/13/2007 |
| 7155916 | Supply unit cooling A feed gas supply unit for a fuel cell system uses a feed gas supply and/or cooling fluid passages to cool the control unit, bearings, and motor of the feed gas supply device. ... | 01/02/2007 |
| 7137270 | Flash tank for heat pump in heating and cooling modes of operation A heat pump design with an economizer flash tank provides an efficient way to operate the system in both heating and cooling modes. Various expansion device types can be employed with this design. The invention enhances system performance in both cooling and heating... | 11/21/2006 |
| 7131291 | Compression system for cooling and heating purposes A compression refrigeration system includes a compressor (1), a heat rejector (2), expansion device (3) and a heat absorber (4) connected in a closed circulation circuit that may operate with supercritical high-side pressure. The refriger... | 11/07/2006 |
| 7111471 | Refrigerant cycle apparatus The present invention aims to prevent the occurrence of liquid compression at the second rotary compression element before it happens while improving the compression efficiency with an intermediate cooling circuit in a refrigerant cycle apparatus which comprises an ... | 09/26/2006 |
| 7096679 | Transcritical vapor compression system and method of operating including refrigerant storage tank and non-variable expansion device A transcritical vapor compression system includes a fluid circuit circulating a refrigerant in a closed loop. The fluid circuit has operably disposed therein, in serial order, a compressor, a first heat exchanger, at least one non-variable expansion device and a sec... | 08/29/2006 |
| 7082785 | Oil separator for vapor compression system compressor A transcritical vapor compression system includes a compressor assembly that includes an oil separator for separating oil from refrigerant. The oil separator is disposed between a motor and a compression chamber in a sub-critical portion of the vapor compression sys... | 08/01/2006 |
| 7082786 | Scroll compressor and refrigerating system using ammonia group refrigerant The scroll compressor includes a scroll compression mechanism portion in combination of an orbiting scroll and a fixed scroll, a frame for supporting the compression portion, a rotary shaft fitted in the orbiting scroll, a motor portion coupled to the rotary shaft, ... | 08/01/2006 |
| 7075399 | Liquid-cooled inductive devices with interspersed winding layers and directed coolant flow A high-power, liquid-cooled, multi-layer winding inductive device that has a region of interspersed winding layers and directed coolant flow over the interspersed windings to improve heat transfer and device life. ... | 07/11/2006 |
| 7071585 | Turbocharger with rotating electric machine A turbocharger with a rotating electric machine includes a turbine rotor which constitutes a portion of a rotating member of the turbocharger; a compressor impeller which constitutes a portion of the rotating member of the turbocharger; a rotating electric machine w... | 07/04/2006 |
| 7028490 | Water-heating dehumidifier A water-heating dehumidifier includes a refrigerant loop including a compressor, at least one condenser, an expansion device and an evaporator including an evaporator fan. The condenser includes a water inlet and a water outlet for flowing water therethrough or prox... | 04/18/2006 |
| 7030526 | Integrated drive motor/differential/inverter unit with improved housing for a vehicle An integrated drive motor unit which is integrally constituted of a motor, an inverter and a reducer differential unit arranged in a row, and a frame member. The reducer differential unit is connected to an output shaft of the motor, and distributes torque of the mo... | 04/18/2006 |
| 7021075 | Electric-powered compressor An electric-powered compressor comprised of a compression mechanism 110 for sucking in and compressing a refrigerant and an electric motor 120 for driving the compression mechanism formed integrally and provided at a refrigerant suction side of the com... | 04/04/2006 |
| 7013669 | Arrangement for multi-stage heat pump assembly A gasdynamic arrangement for a multi-stage centrifugal turbomachine, such as a two-stage compressor, comprising two coaxial impellers assembled on a common shaft with axial intake ports and radial peripheral discharge zones, the intake ports of the two impellers pre... | 03/21/2006 |
| 7013954 | Thermosiphon A thermosiphon which can be manufactured easily at low costs, having excellent resistance to pressure, without the circulation of a working fluid being hindered. A condenser 3 includes a condensing section 4 composed of extruded members in which a plur... | 03/21/2006 |
| 6993932 | Refrigerant cycle system A refrigerant cycle system in which the arrangement of a connecting pipe for connection between a compressor and an accumulator is improved effectively to recover oil collected in the accumulator to the compressor. The accumulator is installed to be separate from th... | 02/07/2006 |
| 6981390 | Refrigerant cycle system A refrigerant cycle system includes a first heat-exchanging portion for condensing gas refrigerant discharged from a compressor, a gas-liquid separator into which all of refrigerant after passing through the first heat-exchanging portion and a part of gas refrigeran... | 01/03/2006 |
