161 |
AIR-CONDITIONING APPARATUS |
US14415484 |
2012-08-08 |
US20150176876A1 |
2015-06-25 |
Asako Tamura; Naofumi Takenaka; Shinichi Wakamoto |
An air-conditioning apparatus includes an outdoor unit including a compressor configured to compress a first-side refrigerant and a heat-source-side heat exchanger configured to cause heat exchange between air and the first-side refrigerant, plural indoor units including indoor heat exchangers configured to cause heat exchange between the air and a second-side refrigerant, plural intermediate heat exchangers configured to cause heat exchange between the first-side and second-side refrigerants and connected to the outdoor unit by a first-side refrigerant pipe and connected to the indoor units by a second-side refrigerant pipe, and a flow switching device configured to switch combination of connection between the indoor units and the intermediate heat exchangers. The indoor units include convective indoor units and radiant indoor units, the convective indoor units include a convective indoor heat exchanger, and the radiant indoor units include a radiant indoor heat exchanger. |
162 |
AIR-CONDITIONING APPARATUS |
US14639560 |
2015-03-05 |
US20150176864A1 |
2015-06-25 |
Koji YAMASHITA; Hiroyuki MORIMOTO; Yuji MOTOMURA; Takeshi HATOMURA |
An air-conditioning apparatus achieves improvement of safety and further achieves saving of energy without allowing a refrigerant to circulate in or near an indoor unit. The air-conditioning apparatus is configured such that heat medium pipes have a larger inner cross-sectional area per unit capacity than that of refrigerant pipes. |
163 |
Energy Efficient Air Heating, Air Conditioning and Water Heating System |
US14614784 |
2015-02-05 |
US20150144213A1 |
2015-05-28 |
Lee Wa WONG |
An air heating, air conditioning and water heating system includes a multi-communicative valve unit, a compressor arranged for compressing the refrigerant in a state of superheated vapor, a condenser communicated with the compressor through the multi-communicative valve unit, a heat exchanger communicated with the condenser through the multi-communicative valve unit, an expansion valve, and a water heater communicated with the heat exchanger and the compressor through the multi-communicative valve unit, wherein the multi-communicative valve unit is arranged to be operated to selectively establish at least an air conditioning route, an air heating route, and a water heating route for the refrigerant so that the air heating, air conditioning and water heating system is capable of selectively providing air conditioning, heating and delivering hot water for a predetermined premises. |
164 |
AIR-CONDITIONING APPARATUS |
US14400458 |
2012-07-24 |
US20150128628A1 |
2015-05-14 |
Tomokazu Kawagoe; Daisuke Shimamoto; Koji Azuma; Takayoshi Honda |
An air-conditioning apparatus includes a heat source-side unit including a compressor that compresses a refrigerant and a heat source-side heat exchanger, a plurality of use-side units each including a use-side heat exchanger, and a plurality of intermediate heat exchangers connected to the heat source-side unit and to the use-side units. A target determination device detects condensation status of each of the use-side units and determines whether to perform condensation suppression control. The use-side unit determined by the target determination means to be subjected to the condensation suppression control is connected to an intermediate heat exchanger for adjustment. A refrigerant circuit control device controls a temperature of the refrigerant flowing into the intermediate heat exchanger for adjustment so that the heat medium temperature T of the heat medium flowing into at least one use-side unit enters a predetermined target set temperature range. |
165 |
THERMAL MANAGEMENT SYSTEM FOR AN ELECTRIC VEHICLE |
US14141585 |
2013-12-27 |
US20150121922A1 |
2015-05-07 |
Liang-Cheng Chang; Hong-Chi Wang; Chih-Jung Yeh; Shih-Jung Ho |
An electric vehicle thermal management system includes a dynamic heat dissipating unit, an air conditioner unit, a heat exchange unit, and a control unit. The heat exchange unit is connected to the dynamic heat dissipating unit and the air conditioner unit for transferring heat therebetween. The control unit adjusts the flow rate of a coolant in the dynamic heat dissipating unit for controlling and adjusting the heat dissipating ability of the dynamic heat dissipating unit to meet the heat dissipation of the system, thereby improving distribution and management of heat energy in the system. |
166 |
HEAT PUMP |
US14394237 |
2013-04-15 |
US20150060007A1 |
2015-03-05 |
Steven Michael Smith |
A heat pump including a fluid circuit and a control arrangement. The fluid circuit includes a first heat exchanger, a second heat exchanger, a third heat exchanger and a driver for driving fluid about the fluid circuit. The control arrangement has one or more modes of operation. The first heat exchanger is arranged to exchange heat between the fluid of the fluid circuit and further fluid. The control arrangement is configured to in at least one of the modes of operation control a flow control mechanism to control a flow rate of the further fluid of the first heat exchanger. |
167 |
Multi-split Heat Pump for Heating, Cooling, and Water Heating |
US14384777 |
2013-03-15 |
US20150033779A1 |
2015-02-05 |
Karl J. Seggerman |
A multi-split air or ground source heat pump system designed to provide a residential application with space heating and cooling, along with supplemental hydronic heating and potable water preheating. The supplemental hydronic heating supports applications like radiant floor heating and heating swimming pools. Commercially, the multi-split air or ground source heat pump system expands on this technology to incorporate comfort and/or process heating, cooling, and hydronic heating applications utilizing multiple types of energy sources. |
168 |
Secondary pump type heat source and secondary pump type heat source control method |
US13201192 |
2010-02-08 |
US08939196B2 |
2015-01-27 |
Takeru Morita; Yuuji Matsumoto; Seiji Tsukiyama; Manabu Yamamoto |
A secondary pump-type heat source system includes: heat sources connected in parallel; a load system in which the heat source water flows; a primary pump supplying the heat source water to the load system; a secondary pump provided for each heat source and supplies the heat source water subjected to heat exchange in the load system to the heat source; and a heat source controller calculating flow quantity of the heat source water flowing in the heat source side and flow quantity of the heat source water flowing in the load system side by assigning a result from measurement by a water temperature sensor detecting heat source temperature to an operating characteristic of each heat source and controlling operation of the secondary pumps based on the calculation result. |
169 |
HEAT PUMP APPARATUS AND METHOD OF CONTROLLING HEAT PUMP APPARATUS |
US14238927 |
2012-01-31 |
US20140196483A1 |
2014-07-17 |
Takashi Okazaki |
In a heat pump apparatus of an indirect type including a primary circuit on a heat source side and a secondary circuit on a load side, a refrigerant in the primary circuit is prevented from leaking through the secondary circuit.An air-conditioning apparatus includes a leakage detecting device that detects leakage of the refrigerant circulated through a refrigerant circuit, serving as the primary circuit, from an intermediate heat exchanger into a water circuit, serving as the secondary circuit, and a controller that closes valves arranged on both sides of the intermediate heat exchanger in the water circuit to prevent water containing the refrigerant from flowing beyond the valves when the leakage detecting device detects the leakage. |
170 |
AIR-CONDITIONING APPARATUS |
US14236339 |
2012-08-15 |
US20140165635A1 |
2014-06-19 |
Koji Yamashita; Takeshi Hatomura; Katsuhiro Ishimura; Shinichi Wakamoto; Naofumi Takenaka |
A channel on an upstream side of a third expansion device and a channel on an upstream side of a second expansion device are connected during a heating operation, and medium pressure refrigerant generated by the third expansion device during the heating operation is introduced on a suction side of a compressor via the second expansion device and a suction injection pipe. |
171 |
Heat pump system |
US13202628 |
2010-02-23 |
US08650897B2 |
2014-02-18 |
Masahiro Honda |
A heat pump system includes a first usage unit operable to perform a hot-water supply operation to heat an aqueous medium and a second usage unit operable to perform air-cooling and air-warming operations to cool or heat an air medium. The first and second usage units are both connected to a heat source unit in such a manner that the first and second usage units are incapable of individually selecting and performing a hot-water supply operation, an air-cooling operation, or an air-warming operation. The heat pump system is capable of switching operation to a thermoregulation mode different from the switched state of a heat-source-side switching mechanism in response to a thermoregulation mode command issued by a first usage-side controller, a second usage side controller or a centralized controller. |
172 |
COOLING AND HOT WATER SUPPLY SYSTEM AND COOLING AND HOT WATER SUPPLY METHOD |
US13817914 |
2011-03-08 |
US20130145786A1 |
2013-06-13 |
Shogo Tamaki; Makoto Saito |
A combined air-conditioning and hot water supply system simultaneously executes the cooling operation of a use unit and the hot water supply operation of a hot water supply unit, wherein the combined air-conditioning and hot water supply system operates in a cooling priority mode when the temperature differential ΔTwm between a set hot water supply temperature Twset and the inlet water temperature Twi of a plate water-heat exchanger is smaller than a priority operation determination threshold M that is set in advance, and operates in a hot water supply priority mode when the temperature differential ΔTwm becomes equal to or higher than the priority operation determination threshold M. This simultaneous execution of cooling and hot water supply operations prevents hot water from running out. |
173 |
Hybrid Space And Hot Water Heating Heat Pump |
US13666219 |
2012-11-01 |
US20130104574A1 |
2013-05-02 |
Daniel J. Dempsey; Derek Leman; Jiachuan Wang; Larry D. Burns; Matt A. Gibson; Matthew Austin; Troy A. Branam |
A hybrid space and water heating heat pump system includes a heat pump including an outdoor assembly and an indoor assembly; a hot water module including a first heat exchanger, a controller, and a water pump connected to a water line, the first heat exchanger being configured for heating water; and a water heater in fluid communication with the hot water module, the water heater configured for receiving heated water from the first heat exchanger; wherein the controller is configured to select between one of conditioning an interior space or heating of the water in the first heat exchanger; and wherein the heat pump is configured for circulating a refrigerant through a first refrigerant circuit in response to the conditioning of the interior space and circulating the refrigerant through a second refrigerant circuit in response to the heating of the water in the first heat exchanger. |
174 |
AIR-CONDITIONING APPARATUS |
US13520077 |
2010-02-10 |
US20120272672A1 |
2012-11-01 |
Hiroyuki Morimoto; Koji Yamashita; Takeshi Hatomura; Shinichi Wakamoto |
Providing an air-conditioning apparatus that is capable of securing safety while reducing load to the environment.The air-conditioning apparatus 100 includes a concentration detection device 305 that detects the concentration of a heat source side refrigerant leaking from the refrigerant circuit, shut off devices (first shut off device 303 and second shut off device 304) that shut off the circulation of the heat source side refrigerant on the basis of information from the concentration detection device 305. |
175 |
AIR-CONDITIONING APPARATUS |
US13387230 |
2009-09-10 |
US20120118005A1 |
2012-05-17 |
Koji Yamashita; Hiroyuki Morimoto; Yuji Motomura; Takeshi Hatomura |
An air-conditioning apparatus achieves improvement of safety and further achieves saving of energy without allowing a refrigerant to circulate in or near an indoor unit. The air-conditioning apparatus is configured such that heat medium pipes have a larger inner cross-sectional area per unit capacity than that of refrigerant pipes. |
176 |
SECONDARY PUMP TYPE HEAT SOURCE AND SECONDARY PUMP TYPE HEAT SOURCE CONTROL METHOD |
US13201192 |
2010-02-08 |
US20120055665A1 |
2012-03-08 |
Takeru Morita; Yuuji Matsumoto; Seiji Tsukiyama; Manabu Yamamoto |
A secondary pump-type heat source system includes: heat sources connected in parallel; a load system in which the heat source water flows; a primary pump supplying the heat source water to the load system; a secondary pump provided for each heat source and supplies the heat source water subjected to heat exchange in the load system to the heat source; and a heat source controller calculating flow quantity of the heat source water flowing in the heat source side and flow quantity of the heat source water flowing in the load system side by assigning a result from measurement by a water temperature sensor detecting heat source temperature to an operating characteristic of each heat source and controlling operation of the secondary pumps based on the calculation result. |
177 |
HEAT PUMP SYSTEM |
US13202372 |
2010-02-22 |
US20110296861A1 |
2011-12-08 |
Masahiro Honda |
A heat pump system includes a heat source unit, a discharge refrigerant communication tube, a liquid refrigerant communication tube, a gas refrigerant communication tube, a first usage unit and a second usage unit. The first usage unit has a first usage-side heat exchanger capable of functioning as a radiator of the heat-source-side refrigerant introduced from the discharge refrigerant communication tube. The first usage unit is capable of performing operation in which an aqueous medium is heated by radiation of the heat-source-side refrigerant in the first usage-side heat exchanger. The second usage unit has a second usage-side heat exchanger capable of functioning as an evaporator of the heat-source-side refrigerant introduced from the liquid refrigerant communication tube. The second usage unit is capable of performing operation in which an air medium is cooled by evaporation of the heat-source-side refrigerant in the second usage-side heat exchanger. |
178 |
Heat pump system and control method thereof |
US12929394 |
2011-01-20 |
US20110214437A1 |
2011-09-08 |
Dong Woon Jeong; Sung Goo Kim; Jae Hyuk Oh; Seong Je Wu |
A heat pump system which executes cooling and heating operations of an A2A indoor unit and cooling and heating operations and a hot water operation of an A2W indoor unit in a time division multiplexing (TDM) method, and a control method thereof. Further, the heat pump system solves shortage of a refrigerant during a heating operation of the A2A indoor unit or the A2W indoor unit when the TDM method is used. Therefore, the heat pump system includes a control unit to alternately operate the A2A indoor unit or the A2W indoor unit, upon judging that a simultaneous operating condition of the A2A indoor unit or the A2W indoor unit is satisfied. The heat pump system further includes a refrigerant distribution unit to circulate a refrigerant selectively to the A2A indoor unit or the A2W indoor unit. |
179 |
AIR-CONDITIONING APPARATUS AND RELAY UNIT |
US13056826 |
2008-10-29 |
US20110192184A1 |
2011-08-11 |
Koji Yamashita; Hiroyuki Morimoto; Yuji Motomura; Takeshi Hatomura; Naoki Tanaka; Shinichi Wakamoto; Takashi Okazaki; Yusuke Shimazu |
To obtain an air-conditioner apparatus that can achieve energy-saving without making refrigerant circulate up to an indoor unit and whose construction work is easy. A refrigeration cycle is configured by connecting a compressor, a four-way valve, a heat source side heat exchanger, expansion valves, and intermediate heat exchangers by piping. A heat medium circulation circuit is configured by connecting intermediate heat exchangers, pumps, and use side heat exchangers by piping. The outdoor unit that is installed in a space such as outdoors of the building and accommodates the compressor, the four-way valve, and the heat source side heat exchanger, and the relay unit that is installed in a non-subject space which is different from an indoor space and is on a installation floor separated by two or more floors and accommodates the expansion valves, the pump, and intermediate heat exchangers are connected by two pipelines. The relay unit and an indoor unit that accommodates use side heat exchangers and is installed at a position where an indoor space can be air-conditioned are connected by two pipelines from outside of the wall which is a partition between inside and outside of the room. |
180 |
HEAT PUMP |
US12847632 |
2010-07-30 |
US20110120180A1 |
2011-05-26 |
Sim Won CHIN; Yong Hee JANG; Bum Suk KIM; Byoung Jin RYU |
A heat pump controls heating and/or cooling using a refrigeration cycle unit and a booster module, The refrigeration cycle unit includes a compressor to compress a coolant, a first heat exchanger to condense the coolant compressed in the compressor, an expansion mechanism to expand the coolant condensed in the first heat exchanger, and a second heat exchanger to evaporate the coolant expanded in the expansion mechanism. The booster module separates a gaseous coolant from the coolant flowing from the first heat exchanger to the expansion mechanism and then allows for compression of the separated gaseous coolant or coolant evaporated in the second heat exchanger. |