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| Number | Title | Issue Date |
| 8156752 | Air conditioning system An air conditioning system includes a compressor, a first heat source-side heat exchanger for heating or cooling a refrigerant, a second heat source-side heat exchanger for exchanging heat between the refrigerant and a heat delivery medium, a first utilization-side ... | 04/17/2012 |
| 8151586 | Hot water supply and air conditioning system using COheat pump To realize a CO2 heat pump system in which reduction in coefficient of performance of heat pump cycle is prevented by maintaining the temperature of the water supplied to the gas cooler of the CO2 heat pump below a certain temperature and raisi... | 04/10/2012 |
| 7856837 | Air conditioning equipment, fan equipment, method of reducing noise of equipment, pressure pulsation reducer for refrigeration cycle equipment, pressure pulsation reducer for pump equipment and method of reducing pressure pulsation of equipment Air conditioning equipment that ensures sufficient noise reduction in the low frequency range of a few hundred hertz or below. The air conditioning equipment is characterized by including a heat exchanger for exchanging heat between air and refrigerant of a refriger... | 12/28/2010 |
| 7802441 | Heat pump with accumulator at boost compressor output A heat pump system is disclosed that utilizes an accumulator fluidly connected between a boost compressor output and a primary compressor input. The accumulator is multifunctional in that it allows the refrigerant from the boost compressor to be cooled with refriger... | 09/28/2010 |
| 7603872 | Heat-pump hot water supply apparatus A heat-pump hot water supply apparatus, for dissolving problems of delaying in heating rise-up time when re-starting, and ill influences upon starting characteristics, due to liquid refrigerant residing in an evaporator when the operation is stepped, within a heat-p... | 10/20/2009 |
| 7503184 | Gas engine driven heat pump system with integrated heat recovery and energy saving subsystems A gas heat pump system powered by natural gas, propane or similar gaseous fuel is disclosed. The system uses heat recovery and heat addition to manage efficient heating and cooling cycles. In a cooling cycle excess heat is vented to the atmosphere while in a heating... | 03/17/2009 |
| 7481071 | Cooling/heating apparatus using cogeneration system A cooling/heating apparatus using a cogeneration system is disclosed. The cooling/heating apparatus includes a discharge-side refrigerant heating unit which supplies heat of exhaust gas generated from an engine to a discharge-side refrigerant line connected to a com... | 01/27/2009 |
| 7407002 | Air conditioner and outdoor unit therefor An air conditioner comprises an outdoor unit and an indoor unit provided with an indoor heat exchanger and an indoor expansion device, wherein the outdoor unit comprises a compressor for compressing a refrigerant, an outdoor heat exchanger for heat-exchanging a refr... | 08/05/2008 |
| 7395674 | Air conditioner An air conditioner has a heat source refrigerant circuit, utilization refrigerant circuits, a pressurizing circuit, and a cooler. The heat source refrigerant circuit is configured by an interconnection of a compression mechanism, a heat source heat exchanger, and a ... | 07/08/2008 |
| 7380588 | Heat pump control system and method of operating to provide automatic backup heating modes A heat pump type heating and air conditioning system includes a gas furnace or other auxiliary heat source and a thermostat and controller associated with the heat pump and the auxiliary heat source for automatically energizing the heat pump if the auxiliary heat so... | 06/03/2008 |
| 7370648 | Water heater system A housing has a top, a bottom and side walls. A liner has a top, a bottom, and side walls. The liner is fabricated of glass. A space is provided between the liner and housing. Insulation material is provided throughout the space. A heating assembly is provided withi... | 05/13/2008 |
| 7337838 | Plant for tempering of a building A plant for tempering a building, including an energy storage unit formed by ground heat exchangers coupled in parallel and each including a heat insulated leg and a non-insulated leg in thermal contact with surrounding soil. The heat exchangers are included in a ci... | 03/04/2008 |
| 7334419 | Heat pump water heater A heat pump water heater system including a water storage tank and a heat exchange system. The heat exchange system includes a heat absorber positioned below the water storage tank and a heat rejecter in fluid communication with the heat absorber and positioned with... | 02/26/2008 |
| 7325333 | Heat pump device and drying machine There are disclosed a heat pump device and a drying machine using the device in which abnormal water supplying into a water-cooling heat exchanger for use in water-cooling of a heat pump can be easily detected without disposing any water amount gauge particularly. T... | 02/05/2008 |
| 7310960 | Transcritical heat pump water heater with drainage A water heater is provided by a refrigerant cycle, in which the gas cooler is utilized to heat the water. A drain is incorporated into a water circuit for draining all of the water outwardly of the circuit when the system is shut down. In a preferred embodiment, a w... | 12/25/2007 |
| 7305840 | Electricity generating and air conditioning system with dehumidifier An electricity generating and air conditioning system with a dehumidifier. The system includes an engine, a generator connected to an output shaft of the engine to generate electricity, a dehumidifying agent body to dehumidify indoor air, a regeneration heater to re... | 12/11/2007 |
| 7305841 | Cogeneration system A cogeneration system is disclosed. The cogeneration system includes a heat pump type air conditioner, a waste heat recoverer to recover waste heat of a drive source, a waste heat supplying heat exchanger, which is heated by the waste heat recovered by the waste hea... | 12/11/2007 |
| 7302807 | Refrigerating cycle device In a refrigerating cycle device using carbon dioxide as a refrigerant, there exists a problem that the provision of a receiver at a low-pressure side increases cost and volume due to a pressure resistance design necessary for ensuring safety. By adjusting a refriger... | 12/04/2007 |
| 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 |
| 7278475 | Control arrangement for cooling power electronic components A control arrangement (10) comprises a first selectable controller (12) for controlling an action, and a second selectable controller (14) for controlling the action. The arrangement also includes a selector (22) for selecting one of the ... | 10/09/2007 |
| 7275382 | Cogeneration system A cogeneration system including a generator, a drive source operating to drive the generator, and thus, to cause the generator to generate electricity, a heat pump type air conditioner including a compressor, a 4-way valve, an indoor heat exchanger, an expansion dev... | 10/02/2007 |
| 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 |
| 7259469 | Vehicle auxiliary power unit, assembly, and related methods A truck includes an auxiliary power unit having components specifically selected such that they form a stand-alone unit that can fit within an auxiliary compartment of a vehicle and deliver heating, cooling, and additional electric power to the vehicle. Included is ... | 08/21/2007 |
| 7254955 | Heat exchange apparatus and refrigerating machine In a refrigerating machine, a water cooling device having a cooling tower or an ice heat storage tank is provided as a heat exchanger for cooling refrigerant after heat-exchange in a heat-source side heat exchanger between an outdoor expansion valve and the heat-sou... | 08/14/2007 |
| 7247090 | System and method for inhibiting moisture and mold in an outer wall of a structure A structure comprises at least one outer wall having an internal wall section and an outer wall section with an air flow passage therebetween. A circulation system circulates air through the flow passage to inhibit moisture accumulation and mold growth. A sensing sy... | 07/24/2007 |
| 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 |
| 7240503 | Electricity generating and air conditioning system with dehumidifier An electricity generating and air conditioning system with a dehumidifier. The system includes an engine, a generator connected to an output shaft of the engine to generate electricity, a heat pump type air conditioner, through which a refrigerant is circulated, the... | 07/10/2007 |
| 7240504 | Cogeneration system A cogeneration system including an engine, which drives a generator to generate electricity, a cooling/heating unit, which comprises at least one compressor, a four-way valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger, to establish... | 07/10/2007 |
| 7240494 | Vapor compression circuit and method including a thermoelectric device A system and method includes a vapor-compression circuit having a working fluid flowing therethrough, a thermoelectric device positioned in a heat-transfer relation with the working fluid, and a power supply providing current to the thermoelectric device to generate... | 07/10/2007 |
| 7240505 | Cogeneration system A cogeneration system including a heat pump type air conditioner including an outdoor heat exchanger and an outdoor heat exchanger bypass conduit, and a cogeneration unit including a second outdoor heat exchanger, an outdoor heat exchanger bypass conduit, second out... | 07/10/2007 |
| 7239034 | Engine driven power inverter system with cogeneration A combined heat and AC power generating system is disclosed having black start capability for the full time, simultaneous production of both electricity and heat. Heat generated within the system is captured and used for heating applications such as heating building... | 07/03/2007 |
| 7234311 | Prevention of compressor unpowered reverse rotation in heat pump units A heat pump is provided with a method and control for eliminating compressor un-powered reverse rotation at shutdown. In particular, the position of the four-way reversing valve is changed and the heat pump is moved to the opposite mode of operation as compared to t... | 06/26/2007 |
| 7228695 | Heat pump type hot water supply device A heat pump type hot water supplying apparatus includes a hot water reservoir tank (3) and a circulating path (12) for connecting a water intake port (10) formed at the bottom of the hot water reservoir tank (3) and a hot water inlet (... | 06/12/2007 |
| 7228709 | Unitary air conditioning system A unitary air conditioning system comprises an outdoor unit including a compressor for compressing a refrigerant, an outdoor heat exchanger for heat exchange of the refrigerant and an expander connected to the outdoor heat exchanger, for expanding the refrigerant; a... | 06/12/2007 |
| 7225629 | Energy-efficient heat pump water heater An energy-efficient heat pump water heating system determines whether to energize a heat pump by interpreting readings from one or temperature sensors based on two thresholds. The heat pump is energized if the detected temperature falls below a first threshold and d... | 06/05/2007 |
| 7222495 | Motor vehicle cooling and depolluting device The invention concerns a motor vehicle cooling and depolluting device designed for conditioning said vehicle passenger compartment and for cooling its cylinder block (22). The elements of the device are connected through a main tube (25) containing an ... | 05/29/2007 |
| 7216697 | Method of operating a cooling and heating circuit of a motor vehicle In a method for operating a cooling and heating circuit of a motor vehicle driven by an internal combustion engine, a first cooling medium path is provided through a bypass conduit, a second cooling medium path is provided through a main cooler of the internal combu... | 05/15/2007 |
| 7197886 | Heat reclaim refrigeration system and method A heat reclaim refrigeration system uses a first compressor to elevate the amount of latent heat reclaimable by the system and to reclaim this heat using heat reclaim means, such as heat reclaim coils, for practical applications, such as heating a building. In addit... | 04/03/2007 |
| 7191610 | Energy collecting system and method of operating the same In the air-conditioning system, a primary side to generate heat includes a heat storage and a heat source and produces cool or warm water using an inexpensive commercial power source such as a nighttime power source. A system collaboration unit is disposed between a... | 03/20/2007 |
