子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Refrigerant system with intercooler and liquid/vapor injection | US12676026 | 2007-12-26 | US08375741B2 | 2013-02-19 | Michael F. Taras; Alexander Lifson |
| A refrigerant system is provided with at least two sequential stages of compression. An intercooler is positioned intermediate the two stages. The refrigerant flowing through the intercooler is cooled by a secondary fluid such as ambient air. A vapor/liquid injection function is also provided for the refrigerant system. The intercooler function and the vapor/liquid injection function are selectively activated on demand depending on environmental conditions and thermal load in a conditioned space. This invention is particularly important for the CO2 refrigerant systems operating in the transcritical cycle. | ||||||
| 162 | Refrigeration apparatus | US12744262 | 2008-11-26 | US08356490B2 | 2013-01-22 | Atsushi Yoshimi; Shuji Fujimoto |
| A refrigeration apparatus uses a refrigerant that operates in a supercritical range. The refrigeration apparatus includes a compression mechanism, a heat source-side heat exchanger, an expansion mechanism, a usage-side heat exchanger, a switching mechanism, an intercooler which functions as a cooler of refrigerant discharged from a first-stage compression element of the compression mechanism and drawn into a second-stage compression element of the compression mechanism, and an intercooler bypass tube. The switching mechanism is configured to switch between cooling and heating operation states in which refrigerant is circulated differently. When a defrosting operation for defrosting the heat source-side heat exchanger is performed, refrigerant flows to the heat source-side heat exchanger and the intercooler. After defrosting of the intercooler is detected as being complete, the intercooler bypass tube is used to ensure that the refrigerant does not flow to the intercooler. | ||||||
| 163 | Integrated thermo-electric heat pump system for vehicle passenger temperature control | US11922049 | 2005-06-24 | US08104294B2 | 2012-01-31 | Hayden M. Reeve |
| A system for controlling the temperature of a passenger cabin has a tube for receiving a heat transfer fluid from an engine and a number of heating coils being thermally connected to the tube. The system also has a number of thermo-electric heat pumps connected to the tube. The heat transfer fluid is modulated for controlling the temperature of the passenger cabin at a number of different points of the passenger cabin. | ||||||
| 164 | AIR CONDITIONING SYSTEM HAVING AN IMPROVED INTERNAL HEAT EXCHANGER | US12788377 | 2010-05-27 | US20110289959A1 | 2011-12-01 | Edward Wolfe, IV; Prasad Shripad Kadle; James Alan Bright; Mingyu Wang |
| An air conditioning system having an improved internal heat exchanger (IHX) assembly. The IHX assembly includes an elongated cavity for low pressure refrigerant flow from an evaporator and an interior tube disposed within the cavity for high pressure refrigerant flow from a condenser, and a pressure equalization passage between the low and high pressure sides. The passage is large enough to allow pressures to equalize between the condenser and evaporator while the air conditioning system is inactive, so as to prevent the pressure differential that would otherwise enable the loss of refrigerant oil from the compressor, and small enough not to effect the operation of the air conditioning system. The pressure equalization passage may be a by-pass valve assembly having a reed portion that is normally open when the air conditioning system is inactive and closed when the air conditioning system is active for maximum cooling efficiency. | ||||||
| 165 | REFRIGERATION CIRCUIT | US13003207 | 2009-07-02 | US20110146313A1 | 2011-06-23 | Oliver Finckh; Tobias H. Sienel; Markus Hafkemeyer; Christoph Kren; Rainer Schrey |
| A refrigeration circuit has a mono- or multi-component refrigerant, especially CO2, circulating therein, said refrigeration circuit enabling an transcritical operation, said refrigeration circuit comprising, in the direction of refrigerant flow, a compressor unit, a condenser/gascooler, a high pressure control valve, a collecting container, and at least one evaporator having an expansion device connected upstream thereof, wherein a flashgas line having a medium pressure control valve arranged therein is provided between an upper portion of the collecting container and the suction line leading to the compressor unit, wherein a temperature, pressure or liquid level sensor is provided in or at the collecting container, wherein a bypass line having a medium pressure holding valve arranged therein is provided connecting the line between the condenser/gascooler and the high pressure control valve to the line between the collecting container and the expansion device(s), and wherein a control unit is provided said control unit being configured to open the medium pressure holding valve when the temperature or pressure in the collecting container sensed by the sensor falls below a predetermined threshold or the liquid level in the collecting container sensed by the sensor exceeds a predetermined threshold, such that the medium pressure is prevented from decreasing. | ||||||
| 166 | COMBINED REFRIGERANT COMPRESSOR AND SECONDARY LIQUID COOLANT PUMP | US12567019 | 2009-09-25 | US20110072849A1 | 2011-03-31 | STEVEN J. KUEHL; GUOLIAN WU |
| A compressor for a refrigerant is integrally contained in a housing with a positive displacement pump for a secondary coolant. Both the compressor and pump are driven by a common motor. In one embodiment, a linear compressor includes a reciprocating piston rod coupled at one end to a refrigerant compressor and at an opposite end to a positive displacement liquid pump. The pump circulates a secondary coolant through a thermal storage unit and heat exchanger associated with an evaporator. The evaporator is coupled to a condenser, in turn, coupled to the compressor. A conventional rotary compressor may also have a positive displacement pump coupled to the motor to provide circulation for a secondary coolant circuit. | ||||||
| 167 | REFRIGERATION APPARATUS | US12919047 | 2009-02-25 | US20110005270A1 | 2011-01-13 | Atsushi Yoshimi; Shuji Fujimoto; Masakazu Okamoto |
| A refrigeration apparatus includes a compression mechanism, a heat source-side heat exchanger, a usage-side heat exchanger, a switching mechanism and an intermediate heat exchanger. Refrigerant discharged from a first-stage compression element is sequentially compressed by a second-stage compression element. Each of the heat source-side heat exchanger and the usage-side heat exchanger functions an evaporator or radiator. The switching mechanism is configured to switch between a cooling operation state and a heating operation state. The intermediate heat exchanger is configured to cool refrigerant discharged from the first-stage compression element and drawn into the second-stage compression element when the switching mechanism has been set to the cooling operation state, and to evaporate refrigerant whose heat is radiated in the usage-side heat exchanger when the switching mechanism has been set to the heating operation state. | ||||||
| 168 | REFRIGERATION APPARATUS | US12744262 | 2008-11-26 | US20100251741A1 | 2010-10-07 | Atsushi Yoshimi; Shuji Fujimoto |
| A refrigeration apparatus uses a refrigerant that operates in a supercritical range. The refrigeration apparatus includes a compression mechanism, a heat source-side heat exchanger, an expansion mechanism, a usage-side heat exchanger, a switching mechanism, an intercooler which functions as a cooler of refrigerant discharged from a first-stage compression element of the compression mechanism and drawn into a second-stage compression element of the compression mechanism, and an intercooler bypass tube. The switching mechanism is configured to switch between cooling and heating operation states in which refrigerant is circulated differently. When a defrosting operation for defrosting the heat source-side heat exchanger is performed, refrigerant flows to the heat source-side heat exchanger and the intercooler. After defrosting of the intercooler is detected as being complete, the intercooler bypass tube is used to ensure that the refrigerant does not flow to the intercooler. | ||||||
| 169 | Cooling System Having A Bypass Valve To Regulate Fluid Flow | US12329461 | 2008-12-05 | US20100139294A1 | 2010-06-10 | Mark Lowe; Krister Bowman |
| A fluid chiller system supplying cold fluid to a therapeutic wrap, in which a minimum level of fluid flow is provided through the heat exchange coils to insure that the fluid in the coils does not freeze. A fluid flow meter or pressure sensor connected inline with the inlet port of the chiller unit measures a level of fluid flow. A controller is connected to the flow meter or pressure sensor and a bypass valve, wherein based on a signal from the flow meter or pressure sensor, the controller adjusts the bypass valve to provide a predetermined level of fluid flow into the inlet port of the chiller unit, in order to prevent the heat exchange coils from freezing, if the flow through the wrap is blocked. | ||||||
| 170 | Variable cooling load refrigeration cycle | US11099265 | 2005-04-05 | US07726151B2 | 2010-06-01 | Dan M Manole |
| A method and apparatus for maintaining a relatively constant temperature of a working fluid in an evaporator of a refrigeration system by providing a constant volumetric displacement compressor and a heat exchanger for exchanging heat between the high pressure and low pressure portions of a refrigeration circuit to superheat, and hold substantially constant, the temperature of the refrigerant entering the compressor. In doing this, the pressure of the refrigerant in the low pressure portion of the circuit, including the evaporator, and the mass flow rate of the refrigerant remain substantially constant. As a result, the temperature of the saturated refrigerant in the evaporator remains substantially constant. | ||||||
| 171 | Heating, Ventilating and/or Air Conditioning System With Cold Air Storage | US12487534 | 2009-06-18 | US20090314023A1 | 2009-12-24 | Laurent Labaste Mauhe; Regine Haller; Jean Luc Thuez; Laurent Delaforge; Abdelmajid Taklanti; Thierry Cheng; Kevin Morvan; Marie Lecollier |
| The invention relates to a heating, ventilating and/or air conditioning system with a main air conditioning loop (10) for a refrigerant including at least one compressor (11), a condenser (12), an expansion device (13) and an evaporator (14), a cold storage heat exchanger (21) suitable for storing cold during operation of the compressor (11), and a secondary air-conditioning loop (20a) comprising the cold storage heat exchanger (21). The secondary air-conditioning loop (20a) is suitable to cool the evaporator (14) when the compressor (11) is out of operation. The secondary air-conditioning loop (20a) includes a fluid circulation branch disposed in parallel with a main air conditioning loop (10) common section including at least the evaporator (14). The fluid circulation branch contains a cold production element (21) able to cool the refrigerant toward the evaporator. The invention is particularly dedicated to heating, ventilating and/or air conditioning systems in “Stop and Start” cars. | ||||||
| 172 | Integrated Thermo-Electric System | US11922049 | 2005-06-24 | US20090288816A1 | 2009-11-26 | Hayden M. Reeve |
| A system for controlling the temperature of a passenger cabin has a tube for receiving a heat transfer fluid from an engine and a number of heating coils being thermally connected to the tube. The system also has a number of thermo-electric heat pumps connected to the tube. The heat transfer fluid is modulated for controlling the temperature of the passenger cabin at a number of different points of the passenger cabin. | ||||||
| 173 | Air conditioning system | US11639421 | 2006-12-15 | US07607314B2 | 2009-10-27 | Ronald S. Eisenhour |
| An air conditioning system includes an evaporator, a compressor, a condenser, a valve an energy recovery device and at least one bypass passage. The compressor is fluidly connected to the evaporator. The condenser is fluidly connected to the compressor. The valve is configured to control flow of high-pressure refrigerant exiting the condenser. The energy recovery device has an inlet and an outlet. The inlet is fluidly connected to the valve to receive high-pressure refrigerant and the outlet is fluidly connected to the evaporator to deliver low-pressure refrigerant thereto. The energy recovery device is configured to extract work from flow of refrigerant therethrough. When the valve is closed and refrigerant flow cutoff, suction power loss is reduced by introduction of one or both of high-pressure refrigerant or low pressure refrigerant via one or more bypass passages. | ||||||
| 174 | AIR CONDITIONER | US11719775 | 2005-11-01 | US20090145151A1 | 2009-06-11 | Shinichi Wakamoto; Tomohiko Kasai; Jiro Okajima; Toshiyuki Nakamura; Kunio Tojo; Takashi Okazaki; Toshihiko Enomoto |
| An air conditioner including an outdoor unit, indoor units, and a relay device for connection between the outdoor unit and each of the indoor units. The outdoor unit includes an outdoor heat exchanger, a compressor for pressurizing a refrigerant of or including carbon dioxide, and a first switching member for switching flow direction of the refrigerant through the outdoor heat exchanger. Each of the indoor units includes an indoor heat exchanger and first flow controller in fluid communication between first and second pipe connection ports. The relay device includes second switching members, each of the second switching members selectively connecting the first pipe connection port of a respective indoor unit with the first or second connection end of the outdoor unit. | ||||||
| 175 | Refrigerator and air conditioner | US10579100 | 2004-11-25 | US07526924B2 | 2009-05-05 | Shinichi Wakamoto; Toshihide Kouda; Masahiro Sugihara; Fumitake Unezaki; Masayuki Kakuta |
| A refrigerator has a coolant cooler for cooling a coolant at the entrance of a flow control valve when the cooling amount in the coolant cooler is deficient as well as excessive. The refrigerator includes a compressor for compressing the coolant, a radiator for radiating heat from the coolant, a coolant cooler for cooling the coolant, a flow control valve for regulating the flow volume of the coolant, an evaporator for evaporating the coolant, and a heat-exchange-amount control for controlling the amount of heat exchanged in the cooler. The coolant is circulated through the compressor, the radiator, the coolant cooler, the flow control valve, and the evaporator, in that sequence. | ||||||
| 176 | Air conditioner | US12010874 | 2008-01-30 | US20090107169A1 | 2009-04-30 | Pil Hyun Yoon; Sai Kee Oh |
| An air conditioner includes at least one compressor, an outlet pipe, an inlet pipe, and at least one bypass pipe. Oil and/or refrigerant discharged from the at least one compressor flows through the outlet pipe. The inlet pipe receives the oil and/or refrigerant flown through the outlet pipe and allows the oil and/or refrigerant to flow to the at least one compressor. The at least one bypass pipe is connected to the at least one compressor and allow bypass flows of the oil and/or refrigerant from the at least one compressor to the outlet pipe. | ||||||
| 177 | SYSTEM AND METHOD FOR USING HOT GAS REHEAT FOR HUMIDITY CONTROL | US12247463 | 2008-10-08 | US20090064711A1 | 2009-03-12 | John Terry KNIGHT; Stephen Wayne BELLAH; Stephen Blake PICKLE |
| A humidity control method is provided for a multi-stage cooling system having two or more refrigerant circuits that balances humidity control and cooling demand. Each refrigerant circuit includes a compressor, a condenser and an evaporator. A hot gas reheat circuit having a hot gas reheat coil is connected to one of the refrigerant circuits and is placed in fluid communication with the output airflow from the evaporator of that refrigerant circuit to provide additional dehumidification to the air when humidity control is requested. The hot gas reheat circuit bypasses the condenser of the refrigerant circuit during humidity control. Humidity control is only performed during cooling operations and ventilation operations. | ||||||
| 178 | AIR CONDITIONER | US12281064 | 2007-03-08 | US20090031739A1 | 2009-02-05 | Shinichi Kasahara; Manabu Yoshimi; Tadafumi Nishimura |
| An air conditioner performs a refrigerant quantity judging operation to judge the refrigerant quantity in a refrigerant circuit, and includes a heat source unit, utilization units, expansion mechanisms, a first refrigerant gas pipe, a second refrigerant gas pipe, a refrigerant liquid pipe, switching mechanisms, bypass circuits, bypass circuit opening/closing element, and a controller. The switching mechanism can switch between a first state and a second state. The bypass circuit opening/closing element are provided in the bypass circuits that bypass the first refrigerant gas pipe to the second refrigerant gas pipe, and open and close the bypass circuits. The controller opens the bypass circuit opening/closing element before performing the refrigerant quantity judging operation. | ||||||
| 179 | REFRIGERATING MACHINE | US11913400 | 2006-04-27 | US20090031738A1 | 2009-02-05 | Tomoichiro Tamura; Masaya Honma; Kou Komori; Tetsuya Saito |
| A refrigerating machine includes a compressor for compressing a refrigerant, a radiator for radiating heat from the refrigerant discharged from the compressor, an expander for expanding the refrigerant discharged from the radiator, and an evaporators for evaporating the refrigerant discharged from the expanders, all connected in series. The refrigerating machine also includes a refrigerant flow regulator for regulating the amount of refrigerant flowing into the expander and a controller for controlling the compressor and the refrigerant flow regulator. At a stop of the compressor, the controller controls the refrigerant flow regulator to reduce the amount of refrigerant flowing into the expander. | ||||||
| 180 | System and method for using hot gas reheat for humidity control | US11027402 | 2004-12-30 | US07434415B2 | 2008-10-14 | John Terry Knight; Stephen Wayne Bellah; Stephen Blake Pickle |
| A humidity control method is provided for a multi-stage cooling system having two or more refrigerant circuits that balances humidity control and cooling demand. Each refrigerant circuit includes a compressor, a condenser and an evaporator. A hot gas reheat circuit having a hot gas reheat coil is connected to one of the refrigerant circuits and is placed in fluid communication with the output airflow from the evaporator of that refrigerant circuit to provide additional dehumidification to the air when humidity control is requested. The hot gas reheat circuit bypasses the condenser of the refrigerant circuit during humidity control. Humidity control is only performed during cooling operations and ventilation operations. | ||||||
QQ群二维码
意见反馈
意见反馈