Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 8176743 | Refrigeration device A refrigeration device includes a control unit, and a refrigerant circuit in which a compression mechanism, a radiator, a refrigerant cooling unit, a first expansion mechanism, a liquid receiver, a second expansion mechanism, and an evaporator are connected in seque... | 05/15/2012 |
| 7797956 | Air conditioning apparatus A first motor-actuated expansion valve and a second motor-actuated expansion valve which are connected in parallel with each other in back-to-back connection are provided between an outdoor heat exchanger and an indoor heat exchanger. In the first motor-actuated exp... | 09/21/2010 |
| 7354005 | Variable capacity climate control system for multi-zone space A climate control system having two or more stages of cooling operation or heating operation is provided for supplying conditioned air to a plurality of zones within a space, where the climate control system comprises a plurality of controllable zone dampers for con... | 04/08/2008 |
| 7299653 | Refrigerator system using non-azeotropic refrigerant, and non-azeotropic refrigerant for very low temperature used for the system A single-stage refrigerating system includes a compressor, a condenser, an evaporator, and a heat exchanger for exchanging heat between a refrigerant in a path from the evaporator to the compressor and a refrigerant in another path from the condenser to the evaporat... | 11/27/2007 |
| 7216494 | Supermarket refrigeration system and associated methods A supermarket refrigeration system may include a plurality of supermarket refrigeration cases, each including an evaporator and an associated compressor connected downstream therefrom. A common condenser is connected downstream from the compressors, and a receiver i... | 05/15/2007 |
| 7194873 | Refrigerating machine and intermediate-pressure receiver A refrigerating machine equipped with a compressor 2 having an intermediate-pressure portion 2M in which refrigerant having intermediate pressure higher than the pressure of the refrigerant at the suction side thereof and lower than the pressure of the... | 03/27/2007 |
| 7181917 | Control method for four-way valve of multiple heat pump Disclosed herein is a control method for four-way valves of a multiple heat pump. In the control method, if even at least one of four-way valves of respective outdoor units is not switched to a desired mode upon switching of all of the four-way valves to the desired... | 02/27/2007 |
| 7174726 | Adjustable nozzle distributor A distributor, for use in a refrigerant system for conveying refrigerant between an expansion device and an evaporator, having a longitudinal body, an actuator, a plug, a first nozzle, and a second nozzle. The longitudinal body having a first end, a second end, a lo... | 02/13/2007 |
| 7134294 | Method and apparatus for refrigeration system control having electronic evaporator pressure regulators A method and apparatus for refrigeration system control includes a control system operable to meet cooling demand and control suction pressure for a plurality of refrigeration circuits each including a variable valve and an expansion valve. The controller controls t... | 11/14/2006 |
| 7121103 | Vehicle air conditioning system An automobile air conditioning system controls the high pressure of the refrigeration cycle in a wide range of airflows from a low airflow region during an intermediate period to a high airflow region. When a dehumidifying mode is selected, the target high pressure ... | 10/17/2006 |
| 7086242 | Dehumidifying air-conditioning apparatus A dehumidifying air-conditioning apparatus comprises a pressurizer (4) for raising a pressure of a refrigerant, a condenser (5) for condensing the refrigerant to heat a high-temperature heat source fluid, and an evaporator (1) for evaporating th... | 08/08/2006 |
| 7082990 | Air conditioning apparatus for vehicle An interior of an air conditioning case is partitioned into a first air passage extending from an inside air suction port to a foot opening portion and a second air passage extending from an outside air suction port is disposed at a side of the first air passage to ... | 08/01/2006 |
| 7080526 | Full plate, alternating layered refrigerant flow evaporator An evaporator core for the climate control system of a motor vehicle formed from alternating pairs of plates. Each pair of plates includes two plates having a similar configuration engaged together and a mirrored, back-two-back relationship. Each of the plates inclu... | 07/25/2006 |
| 7023167 | Control arrangement for an induction motor compressor having at least three windings, a torque-augmentation circuit a starting capacitor and a resistive element Apparatus for driving a three-phase compressor assembly from a single-phase electrical power supply having first and second power lines, said three-phase compressor assembly comprising a compressor having a rotatable shaft, an electrical motor having a rotatable sha... | 04/04/2006 |
| 6986385 | Heating/air conditioning installation for motor vehicle including main module forming fluid-carrying heat exchanger A heating/air-conditioning installation for a motor vehicle has a thermal loop which includes a refrigerating compressor, a gas cooler, a pressure-reducing valve, an evaporator, and a heating element. The gas cooler and the heating element are grouped together into ... | 01/17/2006 |
| 6966199 | Ejector with throttle controllable nozzle and ejector cycle using the same An ejector includes a nozzle having therein a throat portion, and a needle valve that extends at least from the throat portion to the outlet of the nozzle. The needle valve is displaced in an axial direction of the nozzle to adjust an opening degree of the throat po... | 11/22/2005 |
| 6959557 | Apparatus for the storage and controlled delivery of fluids A vessel for containing a refrigerant fluid in a vapor compression system. The vessel includes a housing defining a fixed interior volume and an internal structure subdividing the interior volume into a storage chamber and a displacement chamber. The storage chamber... | 11/01/2005 |
| 6923011 | Multi-stage vapor compression system with intermediate pressure vessel A vapor compression system includes a first compression mechanism that compresses the working fluid from a low suction pressure to an intermediate pressure, a second compression mechanism that compresses intermediate pressure working fluid to a higher discharge pres... | 08/02/2005 |
| 6857280 | Air conditioner By the use of the suction pressure of a compressor, the pressure in back pressure chambers 71g and 71h are reduced to open a refrigerant inlet side and a refrigerant outlet side of an evaporator, and when the compressor is at rest, by the... | 02/22/2005 |
| 6751970 | Vapor compression system and method A vapor compression refrigeration and freezer system includes a compressor, a condenser, an expansion devise and an evaporator which includes an evaporator coil having an inlet and an outlet which coil is in heat exchange relation with an air medium along substantia... | 06/22/2004 |
| 6644052 | Vapor compression system and method A vapor compression refrigeration and freezer system includes a compressor, a condenser, an expansion devise and an evaporator which includes an evaporator coil having an inlet and an outlet which coil is in heat exchange relation with an air medium along... | 11/11/2003 |
| 6415619 | Multi-load refrigeration system with multiple parallel evaporators System and method for reducing temperature variation among heat dissipating components in a multi-component computer system. In this respect, component temperatures are controlled to remain relatively constant (approximately within 5° C.) with respect to... | 07/09/2002 |
| 6314747 | Vapor compression system and method A vapor compression refrigeration system includes an evaporator, a compressor, and a condenser interconnected in a closed-loop system. In one embodiment, a multifunctional valve is configured to receive a liquefied heat transfer fluid from the condenser a... | 11/13/2001 |
| 6272870 | Refrigeration system having a pressure regulating device A system for use in regulating the flow of a working fluid, such as a refrigerant, is provided which includes a pressure regulating device. The pressure regulating device controls the mass flow rate of the working fluid in the refrigeration system. The pr... | 08/14/2001 |
| 6272869 | Multiple orifice expansion device An expansion device in a refrigeration chiller defines at least two fixed orifices and employs at least two positionable valve members in order to minimize the overall flow area through the expansion device under a first set of chiller operating condition... | 08/14/2001 |
| 6053000 | Refrigeration unit The present invention consists of a refrigeration unit with an adjusting valve that functions to control the flow of refrigerant and which is installed between the condenser and the evaporator. The adjusting valve is modulated by a controller that adjusts... | 04/25/2000 |
| 6044655 | Vapor compression type refrigerating system A refrigerating system, using CO2 as a refrigerant, for an air conditioner for an automobile. A pressure at the outlet of the heat emitter 2 is controlled to a target value in accordance with the temperature of the refrigerant at the outlet of ... | 04/04/2000 |
| 6035653 | Air conditioner An air conditioner capable of enhancing responsivity of a blowout temperature of conditioned air while preventing occurrence of an overshoot or undershoot condition of the blowout temperature when a user gives an instruction to change the blowout temperat... | 03/14/2000 |
| 6032473 | Refrigerant circulating system A refrigerant circulation system of the present invention includes a compressor, a condenser, a evaporator, a throttle device and a control unit. The control unit controls a composition of a refrigerant circulating in the refrigerant circulation system ba... | 03/07/2000 |
| 5983657 | Air conditioning system An air conditioning system having an evaporator 8 at a location upstream from a compressor. When a compressor is stopped, a refrigerant inlet is closed by an electromagnetic valve 28 and a refrigerant outlet is closed by a check valve 29. A pressure in th... | 11/16/1999 |
| 5934094 | Vehicle air conditioning system with expansion valve control during high pressure cycle conditions A control apparatus for a gas injection type air conditioning system that prevents lowering of compressor speed and cycle stoppage under conditions where high pressure is liable to occur. During a system heating mode, a pressure change rate ASP of the hig... | 08/10/1999 |
| 5822999 | Refrigeration system Improved refrigeration system, in particular for domestic use, with a compressor (2), a condenser (3), an evaporator (4) and a valve (5) arranged between the condenser (3) and evaporator (4). The system includes a three-way valve (6) between the condenser... | 10/20/1998 |
| 5755104 | Heating and cooling systems incorporating thermal storage, and defrost cycles for same An apparatus for heating or cooling a space comprises a main flow loop including a compressor (1012), an outside heat exchanger (1014), an inside heat exchanger (1016) connected to allow working fluid to circulate therebetween, and a first valve (1026) be... | 05/26/1998 |
| 5735134 | Set point optimization in vapor compression cycles A vapor compression system with set point optimization generates a set of thermodynamic operating parameters such that the system operates with optimum energy efficiency. Based on environmental conditions such as indoor and outdoor temperature as well as ... | 04/07/1998 |
| 5678419 | Evaporator for a refrigerating system An evaporator for a refrigerant system having a heat exchanging section and a evaporating section of a total flow type having a bottom inlet tank for receiving a refrigerant from the heat exchanging section, a bottom outlet tank for a discharge of the ref... | 10/21/1997 |
| 5669223 | Transport temperature control system having enhanced low ambient heat capacity In a transport temperature control system having a cooling and heating mode of operation an apparatus and method are provided for enhancing the heating capacity during the heating mode of operation. A second expansion valve is provided to connect the high... | 09/23/1997 |
| 5660050 | Refrigeration condenser, receiver subcooler system The refrigeration system is provided with a bundle of refrigeration tubes extending through heat exchange fins, with the bundle forming a condenser section, a receiver section and a subcooler section. A sight glass is positioned in the line between the re... | 08/26/1997 |
| 5651263 | Refrigeration cycle and method of controlling the same A refrigeration cycle comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a liquid receiver; and a pressure reducer connected in series to form a closed loop. The liquid receiver and the pressure reducer connected in series are co... | 07/29/1997 |
| 5634350 | Refrigeration system A refrigeration system, particularly for controlling the temperature of an environment, and presenting a compressor; a condenser; a laminating thermostatic valve; an evaporator; an evaporation pressure control valve interposed between the outlet of the ev... | 06/03/1997 |
| 5551249 | Liquid chiller with bypass valves A liquid chiller refrigeration system with two bypass valves (a condenser bypass valve and a vapor bypass valve), a chiller control valve downstream from the vapor bypass valve, and a remote condenser in addition to a primary heat reclaim condenser so tha... | 09/03/1996 |
