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 |
|---|---|---|---|---|---|---|
| 181 | Compressor having a throttled-return passage connecting an oil accumulator to a seal container | US11071834 | 2005-03-02 | US07220110B2 | 2007-05-22 | Kenzo Matsumoto; Kazuya Sato; Kentaro Yamaguchi; Kazuaki Fujiwara; Masaji Yamanaka; Haruhisa Yamasaki |
| A refrigerant cycling device is provided, wherein a compressor comprises an electric motor element, a first and a second rotary compression elements in a sealed container. The first and the second rotary compression elements are driven by the electric motor element. The refrigerant compressed and discharged by the first rotary compression element is compressed by absorbing into the second rotary compression element, and is discharged to the gas cooler. The refrigerant cycling device comprises an intermediate cooling loop for radiating heat of the refrigerant discharged from the first rotary compression element by using the gas cooler; a first internal heat exchanger, for exchanging heat between the refrigerant coming out of the gas cooler from the second rotary compression element and the refrigerant coming out of the evaporator; and a second internal heat exchanger, for exchanging heat between the refrigerant coming out of the gas cooler from the intermediate cooling loop and the refrigerant coming out of the first internal heat exchanger from the evaporator. | ||||||
| 182 | Vapor-compression refrigerant cycle system with refrigeration cycle and Rankine cycle | US10765761 | 2004-01-27 | US07178358B2 | 2007-02-20 | Atsushi Inaba; Yasushi Yamanaka; Shigeki Iwanami; Koichi Ban; Shigeru Hisanaga; Tadashi Hotta; Yukikatsu Ozaki; Kazuhide Uchida |
| A vapor-compression refrigerant cycle system with a refrigeration cycle and a Rankine cycle includes a compressor, a radiator, a gas-liquid separator, a decompression device and an evaporator. In the vapor-compression refrigerant cycle system, a liquid pump is disposed for supplying the liquid refrigerant in the gas-liquid separator to a heater for heating the refrigerant, a cooling means is provided for cooling the liquid refrigerant to be sucked into the liquid pump, and an energy recovery unit for expanding the refrigerant flowing out of the heater is disposed to recover thermal energy in the refrigerant from the heater. When the Rankine cycle is set so that the energy recovery unit recovers the thermal energy, the cooling means cools the liquid refrigerant to be sucked into the liquid pump. Therefore, pumping efficiency of the liquid pump can be effectively improved. | ||||||
| 183 | Variable cooling load refrigeration cycle | US11099265 | 2005-04-05 | US20060218965A1 | 2006-10-05 | Dan 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. | ||||||
| 184 | Methods of freezeout prevention and temperature control for very low temperature mixed refrigerant systems | US11349060 | 2006-02-07 | US20060168976A1 | 2006-08-03 | Kevin Flynn; Mikhail Boiarski; Oleg Podtcherniaev |
| Refrigerant freezeout is prevented, and temperature is controlled, by the use of a controlled bypass flow that causes a warming of the lowest temperature refrigerant in a refrigeration system that achieves very low temperatures by using a mixture of refrigerants comprising at least two refrigerants with boiling points that differ by at least 50° C. This control capability enables reliable operation of the very low temperature system. | ||||||
| 185 | Refrigerant cycling device | US11071861 | 2005-03-02 | US07076968B2 | 2006-07-18 | Kenzo Matsumoto; Kazuya Sato; Kentaro Yamaguchi; Kazuaki Fujiwara; Masaji Yamanaka; Haruhisa Yamasaki |
| A refrigerant cycling device is provided, wherein a compressor comprises an electric motor element, a first and a second rotary compression elements in a sealed container. The first and the second rotary compression elements are driven by the electric motor element. The refrigerant compressed and discharged by the first rotary compression element is compressed by absorbing into the second rotary compression element, and is discharged to the gas cooler. The refrigerant cycling device comprises an intermediate cooling loop for radiating heat of the refrigerant discharged from the first rotary compression element by using the gas cooler; a first internal heat exchanger, for exchanging heat between the refrigerant coming out of the gas cooler from the second rotary compression element and the refrigerant coming out of the evaporator; and a second internal heat exchanger, for exchanging heat between the refrigerant coming out of the gas cooler from the intermediate cooling loop and the refrigerant coming out of the first internal heat exchanger from the evaporator. | ||||||
| 186 | Refrigerant system with common economizer and liquid-suction heat exchanger | US11010039 | 2004-12-10 | US20060123840A1 | 2006-06-15 | Alexander Lifson; Michael Taras; Howard Fraser; Russell Lewis; Andre Stumpf |
| A refrigerant system is provided where the functions of an economizer heat exchanger and liquid-suction heat exchanger are combined. The two configurations are disclosed with a single common heat exchanger construction. In a first configuration, a series of valves selectively routes only one of two possible refrigerant flows through a common heat exchanger such that a control can selectively activate either an economizer heat exchanger circuit or a liquid-suction heat exchanger function. In a second configuration, both refrigerant flows are passed to the common heat exchanger through separate fluid lines and are selectively activated by the control. Variations of the second configuration are also disclosed. | ||||||
| 187 | Methods of freezeout prevention for very low temperature mixed refrigerant systems | US10281881 | 2002-10-28 | US07059144B2 | 2006-06-13 | Kevin Flynn; Mikhail Boiarski; Oleg Podtchereniaev |
| Refrigerant freezeout is prevented by the use of a controlled bypass flow that causes a warming of the lowest temperature refrigerant in a refrigeration system that achieves very low temperatures by using a mixture of refrigerants comprising at least two refrigerants with boiling points that differ by at least 50° C. This control capability enables reliable operation of the very low temperature system. | ||||||
| 188 | Refrigeration apparatus | US10541590 | 2003-12-25 | US20060059929A1 | 2006-03-23 | Katsumi Sakitani; Michio Moriwaki; Masakazu Okamoto; Eiji Kumakura; Tetsuya Okamoto |
| A refrigerant circuit (10) of a refrigeration apparatus is filled up with carbon dioxide as a refrigerant. In the refrigerant circuit (10), a first compressor (21) and a second compressor (22) are arranged in parallel. The first compressor (21) is connected to both an expander (23) and a first electric motor (31), and is driven by both of the expander (23) and the first electric motor (31). On the other hand, the second compressor (22) is connected only to a second electric motor (32), and is driven by the second electric motor (32). In addition, the refrigerant circuit (10) is provided with a bypass line (40) which bypasses the expander (23). The bypass line (40) is provided with a bypass valve (41). And, the capacity of the second compressor (22) and the valve opening of the bypass valve (41) are regulated so that the COP of the refrigeration apparatus is improved after enabling the refrigeration apparatus to operate properly in any operation conditions. | ||||||
| 189 | Refrigerant cycling device | US11071845 | 2005-03-02 | US07013664B2 | 2006-03-21 | Kenzo Matsumoto; Kazuya Sato; Kentaro Yamaguchi; Kazuaki Fujiwara; Masaji Yamanaka; Haruhisa Yamasaki |
| A refrigerant cycling device is provided, wherein a compressor comprises an electric motor element, a first and a second rotary compression elements in a sealed container. The first and the second rotary compression elements are driven by the electric motor element. The refrigerant compressed and discharged by the first rotary compression element is compressed by absorbing into the second rotary compression element, and is discharged to the gas cooler. The refrigerant cycling device comprises an intermediate cooling loop for radiating heat of the refrigerant discharged from the first rotary compression element by using the gas cooler; a first internal heat exchanger, for exchanging heat between the refrigerant coming out of the gas cooler from the second rotary compression element and the refrigerant coming out of the evaporator; and a second internal heat exchanger, for exchanging heat between the refrigerant coming out of the gas cooler from the intermediate cooling loop and the refrigerant coming out of the first internal heat exchanger from the evaporator. | ||||||
| 190 | Heat pump with reheat and economizer functions | US10942724 | 2004-09-16 | US20060053823A1 | 2006-03-16 | Michael Taras; Alexander Lifson |
| A heat pump system operates in heating and cooling modes. The heat pump is provided with both a reheat function and economizer circuit. The economizer circuit provides augmented performance to the heat pump, while the reheat coil allows enhanced control over temperature and humidity of the air supplied to the conditioned space. A bypass line around an outdoor heat exchanger is also provided to achieve additional flexibility of control for a sensible heat ratio. Selective operation of the abovementioned components and subsystems allows precise control over system operation parameters and hence satisfaction of a wide spectrum of sensible and latent load demands and improved reliability. | ||||||
| 191 | Oil equalizing system for multiple compressors | US10890371 | 2004-07-14 | US07007503B2 | 2006-03-07 | Kaneko Takashi |
| An oil equalizing system for multiple compressors which does not require a particular machining process for shells of the compressors, thereby being capable of preventing an increase in costs, while maintaining oil in each compressor in a proper amount. In a refrigerant circuit, in which at least three compressors are connected in parallel, the oil equalizing system includes an oil equalizing tube adapted to communicate shells of the compressors with one another, and a bypass tube adapted to connect the oil equalizing tube to a discharge side refrigerant line for the compressors. The shell of each compressor is directly communicated with the shell of each of the remaining compressors by the oil equalizing tube. | ||||||
| 192 | Apparatus for converting refrigerant pipe of air conditioner | US11023521 | 2004-12-29 | US20050235684A1 | 2005-10-27 | Chan-Ho Song; Seung-Youp Hyun; Won-Hee Lee; Jeong-Taek Park; Yoon-Jei Hwang |
| An apparatus for converting a refrigerant pipe of an air conditioner comprises: a valve housing installed at a position where respective refrigerant discharge pipes of plural compressors are put together, having a valve space portion therein, and composed of a first refrigerant inlet, a second refrigerant inlet, a refrigerant outlet, a bypass outlet, and a detour refrigerant outlet at upper and lower sides thereof; a bypass pipe for connecting the refrigerant outlet of the valve housing to refrigerant suction pipes of the compressors so that a refrigerant discharged from each refrigerant discharge pipe of the compressors can be introduced into the refrigerant suction pipes of the compressors; an open/close valve slidably installed in the valve space portion of the valve housing so that a refrigerant discharged from the refrigerant discharge pipe can be selectively introduced into the refrigerant circulation pipe of the condenser or the bypass pipe; and an open/close valve driving means installed at the valve housing and driving the open/close valve. | ||||||
| 193 | Heat pump and compressor discharge pressure controlling apparatus for the same | US11111035 | 2005-04-21 | US20050235675A1 | 2005-10-27 | Young Kim |
| Disclosed herein is a heat pump. The heat pump comprises a compressor, indoor and outdoor heat exchangers for condensing or evaporating refrigerant compressed by the compressor according to cooling or heating operation mode, a four-way valve for guiding the flow of the compressed refrigerant to the indoor heat exchanger or the outdoor heat exchanger according to the operation mode, an expansion valve for selectively decreasing the pressure of liquid refrigerant according to the operation mode, a check valve selectively opened or closed according to the operation mode for guiding the flow of the liquid refrigerant to the expansion valve, an accumulator for preventing the liquid refrigerant from entering into the inlet of the compressor, connection pipes, and a heat exchange part for performing heat exchange between the connection pipe connected to the inlet of the accumulator and the connection pipe connected to the indoor heat exchanger. | ||||||
| 194 | Refrigerant cycling device and compressor using the same | US10649561 | 2003-08-26 | US06945073B2 | 2005-09-20 | Kenzo Matsumoto; Kazuya Sato; Kentaro Yamaguchi; Kazuaki Fujiwara; Masaji Yamanaka; Haruhisa Yamasaki |
| A refrigerant cycling device is provided, wherein a compressor comprises an electric motor element, a first and a second rotary compression elements in a sealed container. The first and the second rotary compression elements are driven by the electric motor element. The refrigerant compressed and discharged by the first rotary compression element is compressed by absorbing into the second rotary compression element, and is discharged to the gas cooler. The refrigerant cycling device comprises an intermediate cooling loop for radiating heat of the refrigerant discharged from the first rotary compression element by using the gas cooler; a first internal heat exchanger, for exchanging heat between the refrigerant coming out of the gas cooler from the second rotary compression element and the refrigerant coming out of the evaporator; and a second internal heat exchanger, for exchanging heat between the refrigerant coming out of the gas cooler from the intermediate cooling loop and the refrigerant coming out of the first internal heat exchanger from the evaporator. | ||||||
| 195 | Combined cooling plant/heat pump for cooling, heating and dehumidifying a motor vehicle interior | US10712700 | 2003-11-13 | US06928831B2 | 2005-08-16 | Peter Heyl |
| The invention relates to a combined cooling plant/heat pump for use in motor vehicles for the cooling, heating and dehumidification of the vehicle interior. A refrigerant circuit is thermally coupled to the ventilation system over an internal heat exchanger having two functional units. The functional units are switchable as the condenser/gas cooler of the heat pump (in heating operation) and as the evaporator of the cooling plant (in cooling operation). In a combined dehumidification-reheating operation, one of these functional units is operable as an evaporator and the other as condenser/gas cooler. | ||||||
| 196 | Compressor | US11071653 | 2005-03-02 | US20050172661A1 | 2005-08-11 | Kenzo Matsumoto; Kazuya Sato; Kentaro Yamaguchi; Kazuaki Fujiwara; Masaji Yamanaka; Haruhisa Yamasaki |
| A refrigerant cycling device is provided, wherein a compressor comprises an electric motor element, a first and a second rotary compression elements in a sealed container. The first and the second rotary compression elements are driven by the electric motor element. The refrigerant compressed and discharged by the first rotary compression element is compressed by absorbing into the second rotary compression element, and is discharged to the gas cooler. The refrigerant cycling device comprises an intermediate cooling loop for radiating heat of the refrigerant discharged from the first rotary compression element by using the gas cooler; a first internal heat exchanger, for exchanging heat between the refrigerant coming out of the gas cooler from the second rotary compression element and the refrigerant coming out of the evaporator; and a second internal heat exchanger, for exchanging heat between the refrigerant coming out of the gas cooler from the intermediate cooling loop and the refrigerant coming out of the first internal heat exchanger from the evaporator. | ||||||
| 197 | Refrigerant cycling device | US11071846 | 2005-03-02 | US20050144964A1 | 2005-07-07 | Kenzo Matsumoto; Kazuya Sato; Kentaro Yamaguchi; Kazuaki Fujiwara; Masaji Yamanaka; Haruhisa Yamasaki |
| A refrigerant cycling device is provided, wherein a compressor comprises an electric motor element, a first and a second rotary compression elements in a sealed container. The first and the second rotary compression elements are driven by the electric motor element. The refrigerant compressed and discharged by the first rotary compression element is compressed by absorbing into the second rotary compression element, and is discharged to the gas cooler. The refrigerant cycling device comprises an intermediate cooling loop for radiating heat of the refrigerant discharged from the first rotary compression element by using the gas cooler; a first internal heat exchanger, for exchanging heat between the refrigerant coming out of the gas cooler from the second rotary compression element and the refrigerant coming out of the evaporator; and a second internal heat exchanger, for exchanging heat between the refrigerant coming out of the gas cooler from the intermediate cooling loop and the refrigerant coming out of the first internal heat exchanger from the evaporator. | ||||||
| 198 | System and method for using hot gas reheat for humidity control | US11027402 | 2004-12-30 | US20050115254A1 | 2005-06-02 | John Knight; Stephen Bellah; Stephen 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. During a first stage cooling operation using only one refrigerant circuit and having a low cooling demand, the request for humidity control activates the hot gas reheat circuit for dehumidification and activates a second refrigerant circuit to provide cooling capacity. During a second stage cooling operation using two or more refrigerant circuit and having a high cooling demand, the request for humidity control is suspended and is initiated only upon the completion of the second stage cooling demand. | ||||||
| 199 | Expander | US10657182 | 2003-09-09 | US06877340B2 | 2005-04-12 | Akira Hiwata; Noboru Iida |
| 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 by using an expander which is operated in accordance with a flowing direction of refrigerant. An expander used in a refrigeration cycle uses carbon dioxide as refrigerant and has a compressor, an outdoor heat exchanger and an indoor heat exchanger. The expander comprises a cylindrical cylinder, a rotor which rotates in the cylinder, a vane which divides an expansion space formed between an inner peripheral surface of the cylinder and an outer peripheral surface of the rotor into a plurality of spaces, and a vane groove provided in the rotor for accommodating the vane therein. The vane groove is provided with a back pressure chamber which pushes the vane against the inner peripheral surface of the cylinder, and the refrigerant in the supercritical state is introduced into the back pressure chamber. | ||||||
| 200 | Oil equalizing system for multiple compressors | US10890371 | 2004-07-14 | US20050072183A1 | 2005-04-07 | Kaneko Takashi |
| An oil equalizing system for multiple compressors which does not require a particular machining process for shells of the compressors, thereby being capable of preventing an increase in costs, while maintaining oil in each compressor in a proper amount. In a refrigerant circuit, in which at least three compressors are connected in parallel, the oil equalizing system includes an oil equalizing tube adapted to communicate shells of the compressors with one another, and a bypass tube adapted to connect the oil equalizing tube to a discharge side refrigerant line for the compressors. The shell of each compressor is directly communicated with the shell of each of the remaining compressors by the oil equalizing tube. | ||||||
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