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| Number | Title | Issue Date |
| RE43312 | Refrigeration cycle apparatus It is an object of the present invention to reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range. A refrigeration cycle apparatus uses carbon dioxide as refrigerant and ha... | 04/17/2012 |
| 8091377 | Simultaneous heating/cooling multi air conditioner A heat pump capable of performing heating and cooling simultaneously is provided. The heat pump includes a compressor, indoor devices that heat or cool an indoor space, outdoor heat exchangers, and switching devices. The outdoor heat exchangers are configured to ind... | 01/10/2012 |
| 8037710 | Compressor with vapor injection system A heat pump system includes a first heat exchanger, a second heat exchanger in fluid communication with the first heat exchanger, a scroll compressor in fluid communication with each of the first and second heat exchangers, and a flash tank in fluid communication wi... | 10/18/2011 |
| 7823406 | Heat exchanger An evaporator including a refrigerant inlet header having a refrigerant inlet at one end thereof, and a plurality of heat exchange tubes arranged at a spacing longitudinally of the inlet header and each having one end joined to the inlet header. The interior of the ... | 11/02/2010 |
| 7716943 | Heating/cooling system A heat pump system including a first heating/cooling exchange loop including a refrigerant to water heat exchanger to produce a first output. A second heating/cooling exchange loop includes a refrigerant to forced air heat exchanger to produce a second output. A com... | 05/18/2010 |
| 7587909 | Multi type air-conditioner and control method thereof A multi type air conditioner comprises: an outdoor unit including an outdoor heat exchanger heat-exchanged with the outdoor air, a compressor compressing a refrigerant, and a first four-way valve and a second four-way valve switching a refrigerant flow path; indoor ... | 09/15/2009 |
| 7481073 | System and apparatus for delivering expanded refrigerant to an air/gas dryer The present invention relates to a method and apparatus for effectively reducing/eliminating oscillation of over and under shoot of superheat and refrigerant feed in an evaporator of compressed refrigerant of a gas/air dryer system. The feed makes use of a plurality... | 01/27/2009 |
| 7464563 | Air-conditioner having a dual-refrigerant cycle An air-conditioner having a dual-refrigerant cycle includes a primary refrigerant circuit heat-exchanged with outdoor air; a secondary refrigerant circuit heat-exchanged with indoor air to perform either a cooling operation or a heating operation; and a heat exchang... | 12/16/2008 |
| 7412838 | Heat pump using COas refrigerant and method of operation thereof A heat pump employing CO2 as refrigerant and utilizing heat source of natural water, e.g. well water, ground water, river water or sea water, effectively is applied to an air conditioning system in order to enhance heating/hot water supplying capacity and... | 08/19/2008 |
| 7353662 | Medium voltage starter for a chiller unit A single medium voltage starter box is mounted on a chiller unit with the other components of the chiller system. The starter box can be positioned on the chiller system unit to permit the starter box to be close coupled to the motor, and specifically to the main mo... | 04/08/2008 |
| 7341440 | Scroll compressor A scroll compressor includes an orbiting scroll having a compressor chamber in an upper portion thereof and a bypass passage formed through upper and lower ends of a body thereof, a fixed scroll that allows the orbiting scroll to orbit therein to compress a coolant,... | 03/11/2008 |
| 7334426 | Refrigerating apparatus The capacity of a compressor (21) in cleaning operation is set based on a Froude number Fr. The Froude number Fr expresses a ratio of an inertial force of a gas refrigerant flowing through a gas side communication pipe (70) to a gravity working on a li... | 02/26/2008 |
| 7331191 | Heating, ventilation and air conditioning (HVAC) system and method using feedback linearization A new feedback linearization approach to advanced control of single-unit and multi-unit HVAC systems is described. In accordance with the approach of the invention, this new nonlinear control includes a model-based feedback linearization part to compensate for the n... | 02/19/2008 |
| 7325400 | Rankine cycle and steam power plant utilizing the same A steam power plant (100) implementing an improved Rankine cycle (55) wherein steam is injected (82, 96) directly into the energy addition portion of the plant, and the resulting two-phase flow is pressurized by multiphase pumps (88, 98).... | 02/05/2008 |
| 7316120 | Refrigeration/air conditioning equipment Refrigeration/air conditioning equipment includes a first internal heat exchanger for exchanging heat between a refrigerant to be sucked in a compressor and a high-pressure liquid refrigerant, an injection circuit for evaporating a bypassed high-pressure liquid at i... | 01/08/2008 |
| 7310966 | Universal direct current brushless air conditioning system A universal direct current brushless air conditioning system preferably includes a blower unit and a compressor unit. The blower unit preferably includes an evaporator, at least one inlet fan, at least one outlet vent, a direct current controller, a thermostatic exp... | 12/25/2007 |
| 7309220 | Back pressure apparatus for orbiting vane compressors Disclosed herein is a back pressure apparatus for orbiting vane compressors that is capable of reducing excessive axial force applied to an orbiting vane due to high-pressure refrigerant gas introduced to the lower surface of a vane plate of the orbiting vane. The b... | 12/18/2007 |
| 7302811 | Fluid expansion-distribution assembly An expansion-distribution assembly (30) for the heat-absorbing component in a heatpump system. The assembly (30) comprises an envelope (32) forming an expansion chamber (54) and a distribution chamber (56). A shuttle (80) wi... | 12/04/2007 |
| 7299648 | Refrigeration system of air conditioning apparatuses with bypass line between inlet and outlet of compressor A refrigeration system of air conditioning apparatuses with a bypass line between the inlet and outlet of a compressor. The refrigeration system (1) has an expansion unit (10) to execute adiabatic expansion of refrigerant, an indoor unit (20) wi... | 11/27/2007 |
| 7290599 | System for heating and cooling the interior of a motor vehicle A system for heating and cooling the interior of a motor vehicle includes a first climate control device designed to heat or cool a front area of the interior, and a second climate control device designed to heat or cool a rear area of the interior. A first evaporat... | 11/06/2007 |
| 7287581 | Full function vehicle HVAC/PTC thermal system The integrated automotive HVAC/PTC system of the present invention includes a bi-fluidic heat exchanger between an air conditioning subsystem and a heating subsystem which enables heat extracted during dehumidification of the ventilation air to be transferred into d... | 10/30/2007 |
| 7287394 | Refrigerant heat pump with reheat circuit A refrigerant heat pump system is operable in both heating and cooling modes. A reheat circuit is integrated into the system schematic to provide improved control over temperature and humidity and to cover a wide spectrum of sensible and latent capacity demands.... | 10/30/2007 |
| 7275384 | Heat pump with reheat circuit A refrigerant heat pump system is operable in both heating and cooling modes. A reheat circuit is integrated into the system schematic to provide improved control over temperature and humidity and to cover a wide spectrum of sensible and latent capacity demands. In ... | 10/02/2007 |
| 7272943 | Control method for multiple heat pump Disclosed herein is a control method for a multiple heat pump. In the control method, when one of multiple indoor units operates in the heating mode and the other indoor units shut down, electronic expansion valves of the shutdown indoor units are controlled to have... | 09/25/2007 |
| 7263848 | Heat pump system A heat pump is operable in a heating mode and a cooling mode and includes two identical heat exchangers. The heat exchangers alternate between operating as a condenser and an evaporator as the heat pump switches between the heating mode and the cooling mode. The hea... | 09/04/2007 |
| 7263846 | Refrigerant bypassing and filtering apparatus of air conditioner and method for controlling the same A refrigerant bypassing and filtering apparatus of an air conditioner is disclosed which is capable of effectively removing foreign matter such as slag produced in a refrigerant line, not only when the air conditioner is initially operated, but also during normal op... | 09/04/2007 |
| 7251950 | Heating/cooling system There is provided a heating/cooling system capable of reducing power consumption. The heating/cooling system has a receiving room capable of using hot air and cold air in a switching manner, and comprises a refrigerant circuit which comprises a compressor, a gas coo... | 08/07/2007 |
| 7243504 | Cogeneration system A cogeneration system including an engine, which drives a generator to generate electricity, a cooling/heating unit using a heat pump type refrigerant cycle, in which a refrigerant is circulated through at least one compressor, a four-way valve, a first outdoor heat... | 07/17/2007 |
| 7243505 | Cogeneration system A cogeneration system including an engine, which drives a generator to generate electricity, a cooling/heating unit, which includes at least one compressor, a four-way valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger, to establish ... | 07/17/2007 |
| 7231294 | Navigating a UAV Exemplary embodiments of the present invention include a method for navigating a UAV. Such embodiments include receiving in a remote control device a user's selection of a GUI map pixel that represents a waypoint for UAV navigation. The pixel has a location on the G... | 06/12/2007 |
| 7228696 | Hybrid heating and cooling system A heat and cooling system having an indoor air coil subcircuit, an outdoor air coil subcircuit, a geothermal subcircuit, and a control system for selectively operating the system in air-to-air heating, air-to-air cooling, geothermal heating, air-to-air defrost (opti... | 06/12/2007 |
| 7228700 | Heating/cooling system An object is to provide a heating/cooling system capable of achieving reduction of power consumption, and enhancement of performance in a heating/cooling system usable in such a manner as to be switched to be hot/cold. The heating/cooling system having a storage cha... | 06/12/2007 |
| 7216503 | Combined cooling plant/heat pump circuit The invention relates to a combined plant/heat pump circuit with a compressor, a multi-way valve arranged downstream, an external heat exchanger as well as an interior heat exchanger and an internal heat exchanger. A multi-way valve is integrated into the refrigeran... | 05/15/2007 |
| 7214348 | Microfluidic size-exclusion devices, systems, and methods Microfluidic devices, assemblies, and systems are provided, as are methods of manipulating micro-sized samples of fluids. Microfluidic devices having a plurality of specialized processing features are also provided. ... | 05/08/2007 |
| 7204094 | Air conditioner An air conditioner having a plurality of outdoor units and a plurality of indoor units with a common piping connected via a common piping to transfer refrigerant therebetween, the air conditioner including a first outdoor unit to provide heat, a second outdoor unit ... | 04/17/2007 |
| 7185506 | Reversible vapor compression system Reversible vapor compression system including a compressor (1), an interior heat exchanger (2), an expansion device (6) and an exterior heat exchanger (3) connected by means of conduits in an operable relationship to form an integral main... | 03/06/2007 |
| 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 |
| 7174727 | Cogeneration system and method for controlling the same A cogeneration system including a pre-heater to pre-heat outdoor air blown toward the outdoor heat exchanger during a heating operation of a heat pump type air conditioner, an auxiliary evaporator to evaporate a refrigerant emerging from the outdoor heat exchanger d... | 02/13/2007 |
| 7159855 | Hydraulic mount with reciprocating secondary orifice track-mass A hydraulic mount provides passive rate dip performance through use of a secondary orifice track-mass resiliently constrained within a first orifice track for reciprocating movement within the first orifice track under conditions such as engine idle, and constrained... | 01/09/2007 |
