Patent application number | Description | Published |
20080217483 | THERMAL CONTROL DEVICE ON BOARD A SPACECRAFT - The invention relates to a thermal control device intended to dissipate the heat generated by a payload on a spacecraft, comprising a number of surfaces and including means for circulating a refrigerant. An evaporation zone (Z | 09-11-2008 |
20100242533 | HEAT EXCHANGER - An heat exchanger for use in a vapor compression system is disclosed and includes a shell, a first tube bundle, a hood and a distributor. The first tube bundle includes a plurality of tubes extending substantially horizontally in the shell. The hood covers the first tube bundle. The distributor is configured and positioned to distribute fluid onto at least one tube of the plurality of tubes. | 09-30-2010 |
20100276130 | HEAT EXCHANGER - A vapor compression system including a heat exchanger and a heat exchanger for use in a vapor compression system, the heat exchanger including a shell ( | 11-04-2010 |
20100319395 | HEAT EXCHANGER - An heat exchanger for use in a vapor compression system is disclosed and includes a shell, a first tube bundle, a hood and a distributor. The first tube bundle includes a plurality of tubes extending substantially horizontally in the shell. The hood covers the first tube bundle. The distributor is configured and positioned to distribute fluid onto at least one tube of the plurality of tubes. | 12-23-2010 |
20100326108 | VAPOR COMPRESSION SYSTEM - An evaporator ( | 12-30-2010 |
20110056664 | VAPOR COMPRESSION SYSTEM - A distributor for use in a vapor compression system including an enclosure configured to be positioned in a heat exchanger having a tube bundle comprising a plurality of tubes extending substantially horizontally in the heat exchanger. A plurality of distribution devices are formed in the enclosure, the plurality of distribution devices configured to apply a fluid entering the distributor onto the tube bundle. The enclosure is formed of unitary construction. | 03-10-2011 |
20110120181 | FALLING FILM EVAPORATOR - An evaporator for use in a refrigeration system includes a shell and a tube bundle, the tube bundle having a plurality of tubes extending substantially horizontally in the shell. A hood is disposed over and laterally surrounds substantially all of the plurality of tubes of the tube bundle. A distributor is positioned between the hood and the tube bundle. The hood is asymmetrically disposed within the evaporator. | 05-26-2011 |
20110300006 | 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 circuit. The gas sweep is provided by the creation of a pressure reduction at the compressor inlet sufficient to draw uncompressed gas through a motor housing, across the motor, and out of the housing for return to the suction assembly. The pressure reduction is created by means provided in the suction assembly, such as a nozzle and gap assembly, or alternatively a venturi, located upstream of the compressor inlet. Additional motor cooling can be provided by circulating liquid or another cooling fluid through a cooling jacket in the motor housing portion adjacent the motor. | 12-08-2011 |
20120063918 | APPARATUS AND METHOD FOR DETERMINING CLEARANCE OF MECHANICAL BACK-UP BEARINGS OF TURBOMACHINERY UTILIZING ELECTROMAGNETIC BEARINGS - Apparatus and method for determining the clearance and wear of mechanical back-up bearings of turbomachinery utilizing electromagnetic bearings. In order to reduce the prospects of catastrophic failure during a shut-down or loss of electrical power, a rotating apparatus utilizes the electromagnetic bearings to manipulate the shaft to measure the clearance of the mechanical back-up bearings. When power is restored, a programmable controller provides power to the electromagnetic bearings to automatically move the shaft in accordance with a predetermined sequence to contact the mechanical back-up bearings to determine the clearance of the mechanical back-up bearings. These values are stored in the controller memory. The measured clearance is compared to prior clearance measurements of the mechanical back-up bearings to determine the wear of the back-up bearings. The actual wear is compared to the allowable wear for the bearings. If actual wear exceeds a predetermined value, a warning is generated. If the actual wear equals or exceeds the allowable wear, the controller automatically locks the turbomachinery from further operation until repair or replacement is accomplished. Otherwise, the controller centers the shaft to permit normal operation of the turbomachinery. | 03-15-2012 |
20130230382 | MOTOR COOLING SYSTEM - A cooling system provided for a motor powering a compressor in a vapor compression system. The cooling system includes a housing enclosing the motor and a cavity located within the housing. A fluid circuit has a first connection with the housing configured to provide a liquid or two phase cooling fluid to the motor. The two phase cooling fluid is separable into a vapor phase portion and a liquid phase portion. The fluid circuit further has a second connection with the housing to remove cooling fluid in fluid communication with the fluid circuit. The cooling fluid conveyed through the second connection is two phase cooling fluid. The fluid circuit further has a third connection with the housing for receiving and circulating in the cavity the vapor phase portion conveyed through the second connection. | 09-05-2013 |