序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
141 REFRIGERANT VAPOR COMPRESSION SYSTEM WITH INTERCOOLER US15965191 2018-04-27 US20180245821A1 2018-08-30 Hans-Joachim Huff; KeonWoo Lee; Lucy Yi Liu; Suresh Duraisamy; Zvonko Asprovski; Kursten Lamendola; Alexander Lifson
A refrigerant vapor compression system includes a compression device having at least a first compression stage and a second compression stage arranged in series refrigerant flow relationship; a first refrigerant heat rejecting heat exchanger disposed downstream with respect to refrigerant flow of the second compression stage for passing the refrigerant in heat exchange relationship with a first secondary fluid; a second refrigerant heat rejecting heat exchanger disposed downstream with respect to refrigerant flow of the first refrigerant heat rejecting heat exchanger for passing the refrigerant in heat exchange relationship with a second secondary fluid.
142 REFRIGERATION AND HEATING SYSTEM US15547605 2015-02-09 US20180023867A1 2018-01-25 Christian Douven; Markus Hafkemeyer
A refrigeration and heating system (2) comprises a refrigeration circuit (4) which comprises in the direction of flow of a circulating refrigerant: at least one compressor (6a, 6b, 6c); a refrigeration circuit side (8a) of a coupling heat exchanger (8); at least one gas cooler (10); at least one gas cooler bypass line (18) and at least one gas cooler bypass valve assembly (25) allowing to bypass the at least one gas cooler (10); at least one expansion device (12, 14) and at least one evaporator (16). The refrigeration and heating system (2) further comprises a heating circuit (20) which comprises in the direction of flow of a circulating heating fluid: a heating circuit side (8b) of the coupling heat exchanger (8) and at least one heating device (22). The coupling heat exchanger (8) is configured for transferring heat from the circulating refrigerant to the circulating heating fluid; and the gas cooler bypass valve assembly (25) is configured for allowing to selectively direct a first flow of refrigerant either through the gas cooler (10) or through the gas cooler bypass line (18) bypassing the gas cooler (10) and to gradually or continuously regulate a second flow of refrigerant flowing through the other of the gas cooler (10) and the gas cooler bypass line (18) which mixes with the first flow downstream of the gas cooler (10).
143 Vehicle air conditioning apparatus US14363892 2012-11-26 US09809081B2 2017-11-07 Kenichi Suzuki; Hidenori Takei
In a vehicle air conditioning apparatus, during a cooling operation, and a cooling and dehumidifying operation, a refrigerant flows through an outdoor heat exchanger, flows through a supercooling radiator, and then flows into a radiator to absorb heat. During a heating operation, the refrigerant flows through a heat exchanger and then is sucked into a compressor without passing through the supercooling radiator. During a first heating and dehumidifying operation, the refrigerant flows through another radiator, flows through the supercooling radiator, and then flows into another heat exchanger to absorb heat.
144 REFRIGERATION CYCLE APPARATUS AND LIQUID LEVEL DETECTION SENSOR US15505977 2014-10-16 US20170276535A1 2017-09-28 Yasutaka OCHIAI; Makoto SAITO; Masaki TOYOSHIMA
Provided is a refrigeration cycle apparatus including: a refrigerant circuit formed by connecting, by a refrigerant pipe, a compressor, a condenser, an expansion device, an evaporator and a liquid reservoir; a liquid level detection sensor including a plurality of heat generating units and a plurality of temperature detection units, the heat generating units being paired with the temperature detection units, and provided in the liquid reservoir, the liquid level detection sensor being configured to detect a liquid level of a refrigerant accumulated in the liquid reservoir, based on a temperature of each of the heat generating units, in which the liquid reservoir includes a container for accumulating the refrigerant, an inlet pipe connected to the refrigerant circuit and configured to allow a portion of the refrigerant flowing out of the container to flow into the container, and in which in the container, a shielding portion is provided between an discharge outlet for the refrigerant of the inlet pipe and the liquid level detection sensor, to prevent the portion of the refrigerant flowing out of the discharge outlet from directly coming into contact with the liquid level detection sensor.
145 VEHICLE AIR CONDITIONING APPARATUS US15375456 2016-12-12 US20170151857A1 2017-06-01 Kenichi SUZUKI; Hidenori TAKEI
In a vehicle air conditioning apparatus, during a cooling operation, and a cooling and dehumidifying operation, a refrigerant flows through an outdoor heat exchanger, flows through a supercooling radiator, and then flows into a radiator to absorb heat. During a heating operation, the refrigerant flows through a heat exchanger and then is sucked into a compressor without passing through the supercooling radiator. During a first heating and dehumidifying operation, the refrigerant flows through another radiator, flows through the supercooling radiator, and then flows into another heat exchanger to absorb heat.
146 Method and apparatus for improving refrigeration and air conditioning efficiency US14384600 2010-04-23 US09494351B2 2016-11-15 Gary E. Phillippe; Cass Khoo
A method and apparatus for improving refrigeration and air conditioning efficiency for use with a heat exchange system having a compressor, condenser, evaporator, expansion device, and circulating refrigerant. The apparatus includes is a liquid refrigerant containing vessel having a refrigerant entrance and a refrigerant exit with the vessel positioned in the heat exchange system between the condenser and the evaporator, and means for creating a turbulent flow of liquefied refrigerant. The apparatus further preferably includes a refrigerant bypass path to sub-cool a portion of the refrigerant within the vessel; a disk positioned at the liquid refrigerant entrance to develop a low pressure area on the back side and create a turbulent flow of refrigerant entering the vessel; and a refrigerant valve incorporated into the refrigerant path downstream of the expansion valve and before the coil which develops a vortex that continues through the refrigerant coil.
147 REFRIGERATION APPARATUS US15109241 2014-03-14 US20160327321A1 2016-11-10 Takeshi SUGIMOTO; Tetsuji SAIKUSA
A refrigeration apparatus includes a refrigerant circuit in which a compressor, a condenser, a liquid receiver, a first opening-and-closing valve, an expansion valve, and an evaporator are connected sequentially by pipes and through which refrigerant circulates. The refrigerant is HFO1123 or a refrigerant mixture containing HFO1123. A ratio of a refrigeration capacity to an opening area of the first opening-and-closing valve is within a range of 0.25 to 0.6 (kw/mm2).
148 AIR-CONDITIONING APPARATUS US15027257 2014-01-21 US20160245536A1 2016-08-25 Kazuhisa IWASAKI
A controller is configured to decide whether liquid refrigerant is unevenly distributed among a plurality of outdoor units and then adjust an outlet subcooling degree of an outdoor heat exchanger or an outlet sub cooling degree at a high-pressure outlet of a high-low pressure heat exchanger, and a discharge superheating degree of a compressor in a low capacity-side outdoor unit to match lower heat exchange capacity of the outdoor heat exchanger in the low capacity-side outdoor unit with higher heat exchange capacity of an outdoor heat exchanger in a high capacity-side outdoor unit, the low capacity-side outdoor unit being one of the plurality of outdoor units in which the outdoor heat exchanger has the lower heat exchange capacity, the high capacity-side outdoor unit being another of the plurality of outdoor units in which the outdoor heat exchanger has the higher heat exchange capacity.
149 CHILLER SYSTEM AND CONTROL METHOD THEREOF US15045896 2016-02-17 US20160238299A1 2016-08-18 Horim LEE; Seulki ON; Jinhyuk YU; Yoonjei HWANG; Hanyoung PARK
A chiller system and a control method thereof includes a plurality of chiller modules in which a refrigeration cycle is performed to supply cold water, a main control device generating an operation signal to simultaneously or successively operate the plurality of chiller modules, a module control device provided in each of the plurality of chiller modules to control an operation of each of the plurality of chiller modules on the basis of the operation signal of the main control device, and a starting device communicably connected to the module control device to selectively apply power into the plurality of chiller modules.
150 AIR CODITIONING DEVICE US15025240 2014-09-25 US20160238297A1 2016-08-18 Hayato NUNO; Tomoyuki HAIKAWA
An air conditioning device includes a main refrigerant circuit and a discharge-intake bypass circuit. The refrigerant circuit is operable in a heating mode and a positive cycle defrosting mode. it is possible for refrigerant to bypass from a discharge side to an intake side of the compressor when the refrigerant circuit is operating in the heating mode. The refrigerant circuit is operable in a positive cycle defrosting mode. When the refrigerant circuit is operating in the positive cycle defrosting mode, a superheat valve of the discharge-intake bypass circuit is opened and the refrigerant is caused to bypass from the discharge side to the intake side of the compressor through the bypass circuit and a defrosting-mode main valve high-pressure control is performed to adjust a valve opening of a main valve so that a high pressure level of a refrigerating cycle in the refrigerant circuit reaches a target high pressure.
151 Chiller system and control method thereof US14094943 2013-12-03 US09410728B2 2016-08-09 Horim Lee; Seulki On; Jinhyuk Yu; Yoonjei Hwang; Hanyoung Park
A chiller system and a control method thereof includes a plurality of chiller modules in which a refrigeration cycle is performed to supply cold water, a main control device generating an operation signal to simultaneously or successively operate the plurality of chiller modules, a module control device provided in each of the plurality of chiller modules to control an operation of each of the plurality of chiller modules on the basis of the operation signal of the main control device, and a starting device communicably connected to the module control device to selectively apply power into the plurality of chiller modules.
152 Controlling a heating/cooling system US13147917 2010-02-16 US09404664B2 2016-08-02 Ulf Jonsson
The invention relates to a hydronic heating/cooling system. In the system, liquid is led along a main supply pipe (1) to a supply manifold (2) and distributed in the manifold into heating loops (3). The heating loops (3) return to return manifold (4). At least one of the manifolds (2, 4) has actuators (6) for controlling the flow in the heating loops (3). At least one loop is designated to be a bypass loop. The actuators (6) in the loops (3) are monitored and it is ensured that the actuator (6) of the bypass loop is open if all the other actuators (6) are closed.
153 OUTDOOR DEVICE FOR AN AIR CONDITIONER US14935089 2015-11-06 US20160178250A1 2016-06-23 Jonghwan Jeung; Hoki Lee; Sangyoung Kwon
An outdoor device for an air conditioner is provided that may include a compressor that compresses a refrigerant, a condenser that condenses the refrigerant compressed in the compressor, an expansion device that decompresses the refrigerant condensed in the condenser, an evaporator that evaporates the refrigerant decompressed in the expansion device, and a refrigerant storage that bypasses at least a portion of the refrigerant condensed in the condenser to store the bypassed refrigerant therein. The refrigerant storage may include a first storage that stores the bypassed refrigerant, and a second storage in which the refrigerant passing through the evaporator is introduced. The second storage may discharge a gaseous refrigerant of the introduced refrigerant to the compressor. The first storage may be provided above the second storage to supply the refrigerant stored therein into the second storage.
154 Temperature control system US13502923 2010-10-20 US09267713B2 2016-02-23 Ofri Zamir
A temperature control system, including a closed refrigerant circuit having an evaporator unit for absorbing heat via the refrigerant, thereby evaporating it, a compressor unit with a mechanical compressor for increasing the pressure of the refrigerant and a thermal collector for using an external heat source to increase the temperature of refrigerant within the circuit, and a condenser unit for rejecting heat from the refrigerant, liquefying it.
155 Turbo refrigeration unit, control device therefor, and control method therefor US13640349 2011-09-16 US09182161B2 2015-11-10 Noriyuki Matsukura; Kenji Ueda; Seiichi Okuda; Tatsuru Nagai
An object is to provide a turbo-refrigeration-unit control device capable of achieving stable operation and reducing the amount of refrigerant. Provided is a control device for controlling a turbo refrigeration unit that includes a centrifugal compressor, a first-non-refrigerant pump for supplying a first non-refrigerant, a condenser that performs heat exchange between the first non-refrigerant and a refrigerant, an expansion valve that expands the refrigerant, a second-non-refrigerant pump for supplying a second non-refrigerant, an evaporator that performs heat exchange between the second non-refrigerant and the refrigerant, a bypass circuit that is used to inject part of the refrigerant from a discharge port of the centrifugal compressor into a suction port of the centrifugal compressor, and a bypass-circuit control valve that controls the flow rate of the refrigerant.
156 Air conditioning system including a bypass pipe US12453215 2009-05-01 US09127865B2 2015-09-08 Song Choi; Yun Ho Ryu; Baik Young Chung; Kyung Won Seo
An air conditioning system includes a compressor, an outdoor heat exchanger that discharges evaporated refrigerant, and a first pipe coupling the outdoor heat exchanger and the compressor, where the first pipe allows the outdoor heat exchanger to receive at least a portion of the compressed refrigerant from the compressor.
157 HEAT PUMP SYSTEM FOR VEHICLE US14615498 2015-02-06 US20150217625A1 2015-08-06 Sung Ho Kang; Hak Kyu Kim; Sang Ki Lee; Jae Min Lee; Young Ho Choi
A heat pump system for a vehicle, which makes refrigerant bypass an external heat exchanger and turns off a fan mounted on the external heat exchanger when temperature of the outdoor air is lower than setting temperature and the vehicle enters into an idle state in a heat pump mode, thereby continuously operating the heat pump mode even in the below zero temperature so as to keep heating performance, reducing consumption of electrical power without needing to operate an electric heater, and preventing excessive noise of a fan when the vehicle enters into an idle state in the below zero temperature.
158 Systems and Methods for Warming a Cryogenic Heat Exchanger Array, for Compact and Efficient Refrigeration, and for Adaptive Power Management US14130263 2012-06-29 US20140144165A1 2014-05-29 Kevin P. Flynn; Yongqiang Qiu; HaeYong Moon
In accordance with an embodiment of the invention, there is provided a method of warming a heat exchanger array of a very low temperature refrigeration system, the method comprising diverting at least a portion of refrigerant flow in the refrigeration system away from a refrigerant flow circuit used during very low temperature cooling operation of the refrigeration system, to effect warming of at least a portion of the heat exchanger array; and while diverting the at least a portion of refrigerant flow, preventing excessive refrigerant mass flow through a compressor of the refrigeration system.
159 AIR CONDITIONER AND METHOD OF CONTROLLING AN AIR CONDITIONER US13970747 2013-08-20 US20140138064A1 2014-05-22 Seokhoon Jang
An air conditioner and a method of controlling an air conditioner are provided. The air conditioner may include a main body that defines an outer appearance of the air conditioner, at least one indoor heat exchanger disposed within the main body, a plurality of branch tubes that guides a refrigerant into the at least one indoor heat exchanger, a circulation tube connected to the plurality of branch tubes to guide the refrigerant, a bypass tube that connects one of the plurality of branch tubes to the circulation tube, and a branch tube valve disposed in the one of the plurality of branch tubes to adjust a flow of the refrigerant flowing into the one of the plurality of branch tubes. The one of the plurality of branch tubes may have a diameter less than a diameter of each of the remaining branch tubes. In a cooling mode, the refrigerant may be introduced from the circulation tube into the at least one indoor heat exchanger through the one of the plurality of branch tubes. In a heating mode, the refrigerant may be discharged from the at least one indoor heat exchanger into the circulation tube through the bypass tube.
160 LIQUID COOLING SYSTEM AND METHOD FOR COOLING AT LEAST ONE HEAT GENERATING COMPONENT US13705967 2012-12-05 US20130199208A1 2013-08-08 Jian Shi; Vadim Tsoi
A liquid cooling system for cooling at least one heat generating component, comprises a liquid loop in which liquid is arranged to be circulated, and arranged to be cooled by a first stage cooling unit, where the cold side of at least one Thermo Electric Cooling unit is arranged at a position situated downstream of the first stage cooling unit and upstream of the at least one heat generating component to be cooled by liquid, where the at least one Thermo Electric Cooling unit is arranged in its operative state to cool the liquid in order to provide for further cooling power when the cooling power of the first stage cooling unit is not sufficient.
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