Patents by Inventor Junichi Kameyama
Junichi Kameyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9003823Abstract: A configuration provided with a heat source unit A, an indoor unit B, a circuit D for a hot-water supply heat source provided with a refrigerant-refrigerant heat exchanger and throttle for the hot-water supply heat source, and a branch unit C that distributes a refrigerant flowing through the indoor unit and the circuit for hot-water supply heat source and also provided with a refrigerating cycle for air conditioning in which the indoor unit and the circuit for hot-water supply heat source are connected in parallel and connected to the heat source unit by at least two connection pipelines via the branch unit and a refrigerating cycle for hot-water supply in which a compressor for hot-water supply, a heat-medium-refrigerant heat exchanger, throttle for hot-water supply, and the refrigerant-refrigerant heat exchanger are connected in series, in which the refrigerating cycle for air conditioning and the refrigerating cycle for hot-water supply are connected so as to exchange heat between the refrigerant for airType: GrantFiled: January 19, 2010Date of Patent: April 14, 2015Assignee: Mitsubishi Electric CorporationInventors: Kosuke Tanaka, Junichi Kameyama, Hirofumi Koge, Hironori Yabuuchi
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Patent number: 8991202Abstract: To provide an air-conditioning hot-water supply complex system that can simultaneously process a cooling load, a heating load, and a high-temperature hot-water supply load to provide a stable heat source all through the year. The air-conditioning hot-water supply complex system provides a bypass pipe in which a bypass electromagnetic valve is installed in parallel with a heating medium-refrigerant heat exchanger between a gateway of refrigerant piping of the heating medium-refrigerant heat exchanger to control an inflow amount of the refrigerant for hot-water supply to the heating medium-refrigerant heat exchanger by making the refrigerant for hot-water to flow into a bypass pipe by opening and closing the bypass electromagnetic valve.Type: GrantFiled: March 31, 2008Date of Patent: March 31, 2015Assignee: Mitsubishi Electric CorporationInventors: Hironori Yabuuchi, Junichi Kameyama, Kosuke Tanaka, Satoshi Akagi
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Publication number: 20110314848Abstract: A configuration provided with a heat source unit, an indoor unit, a circuit for a hot-water supply heat source provided with a refrigerant—refrigerant heat exchanger and throttle means for the hot-water supply heat source, and a branch unit that distributes a refrigerant flowing through the indoor unit and the circuit for hot-water supply heat source and also provided with a refrigerating cycle for air conditioning in which the indoor unit and the circuit for hot-water supply heat source are connected in parallel and connected to the heat source unit by at least two connection pipelines via the branch unit and a refrigerating cycle for hot-water supply in which a compressor for hot-water supply, a heat-medium—refrigerant heat exchanger, throttle means for hot-water supply, and the refrigerant—refrigerant heat exchanger are connected in series, in which the refrigerating cycle for air conditioning and the refrigerating cycle for hot-water supply are connected so as to exchange heat between the refrigerant forType: ApplicationFiled: January 19, 2010Publication date: December 29, 2011Applicant: Mitsubishi Electric CorporationInventors: Kosuke Tanaka, Junichi Kameyama, Hirofumi Koge, Hironori Yabuuchi
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Patent number: 8015836Abstract: A heat pump system has a single heat source unit connected to at least one load unit to heat water to a high temperature. A hot water supply system 100 (heat pump system) includes a heat source unit 10 provided with a first compressor 11, a four-way selector valve 12 and a heat source heat exchanger 13, and a load unit 50 provided with a first flow controller 51, a first load heat exchanger 52, a second compressor 53, a second load heat exchanger 54, and a second flow controller 55. A main circuit A is formed by connecting the first compressor 11, the four-way selector valve 12, the heat source heat exchanger 13, the first flow controller 51 and the first load heat exchanger 52 with a liquid pipe 1 and a gas pipe 2 sequentially. A load refrigerant circuit B is formed by connecting the second compressor 53, the second load heat exchanger 54, the second flow controller 55, and the first load heat exchanger 52 with a load refrigerant pipe line 56 sequentially.Type: GrantFiled: March 27, 2007Date of Patent: September 13, 2011Assignee: Mitsubishi Electric CorporationInventors: Junichi Kameyama, Tomohiko Kasai
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Publication number: 20110016897Abstract: There is provided a heat pump apparatus bringing heating water to a high temperature by connecting one or a plurality of load-side units to one heat source-side unit. The air conditioning-hot water supply combined system (heat pump apparatus) includes a heat source-side unit equipped with an air conditioning compressor, a four-way valve, and an outdoor heat exchanger; and the load-side units equipped with an air conditioning throttle, an indoor heat exchanger, a second compressor, a second load-side heat exchanger, and a second flow rate control unit. Here, a main circuit is configured by sequentially connecting the air conditioning compressor, the four-way valve, the outdoor heat exchanger, the air conditioning throttle, and the indoor heat exchanger, using a high-pressure side connection piping and a low-pressure side connection piping.Type: ApplicationFiled: February 4, 2008Publication date: January 27, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Satoshi Akagi, Kouji Yamashita, Kousuke Tanaka, Junichi Kameyama, Hironori Yabuuchi
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Publication number: 20100282435Abstract: To provide an air-conditioning hot-water supply complex system that can simultaneously process a cooling load, a heating load, and a high-temperature hot-water supply load to provide a stable heat source all through the year. The air-conditioning hot-water supply complex system provides a bypass pipe in which a bypass electromagnetic valve is installed in parallel with a heating medium-refrigerant heat exchanger between a gateway of refrigerant piping of the heating medium-refrigerant heat exchanger to control an inflow amount of the refrigerant for hot-water supply to the heating medium-refrigerant heat exchanger by making the refrigerant for hot-water to flow into a bypass pipe by opening and closing the bypass electromagnetic valve.Type: ApplicationFiled: March 31, 2008Publication date: November 11, 2010Applicant: Mitsubishi Electric CorporationInventors: Hironori Yabuuchi, Junichi Kameyama, Kosuke Tanaka, Satoshi Akagi
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Publication number: 20100282434Abstract: There is provided an air conditioning and hot water supply complex system that can simultaneously treat a cooling load, a heating load and a high-temperature hot water supply load and supply a stable heat source throughout the year. In the air conditioning and hot water supply complex system 100, the outdoor heat exchanger 103 is made up of a plurality of divided heat exchangers 103a, solenoid valves 209 are provided to respective refrigerant pipes connected to the respective divided heat exchanger 103a, and the solenoid valves 209 are opened or closed to control a flow rate of air conditioning refrigerant flowing into the respective divided heat exchangers 103a to thereby adjust the operation range of the air conditioning compressor 101.Type: ApplicationFiled: March 31, 2008Publication date: November 11, 2010Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Hironori Yabuuchi, Junichi Kameyama, Kosuke Tanaka, Satoshi Akagi
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Publication number: 20100050675Abstract: A heat pump system has a single heat source unit connected to at least one load unit to heat water to a high temperature. A hot water supply system 100 (heat pump system) includes a heat source unit 10 provided with a first compressor 11, a four-way selector valve 12 and a heat source heat exchanger 13, and a load unit 50 provided with a first flow controller 51, a first load heat exchanger 52, a second compressor 53, a second load heat exchanger 54, and a second flow controller 55. A main circuit A is formed by connecting the first compressor 11, the four-way selector valve 12, the heat source heat exchanger 13, the first flow controller 51 and the first load heat exchanger 52 with a liquid pipe 1 and a gas pipe 2 sequentially. A load refrigerant circuit B is formed by connecting the second compressor 53, the second load heat exchanger 54, the second flow controller 55, and the first load heat exchanger 52 with a load refrigerant pipe line 56 sequentially.Type: ApplicationFiled: March 27, 2007Publication date: March 4, 2010Applicant: Mitsubishi Electric CorporationInventors: Junichi Kameyama, Tomohiko Kasai
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Patent number: 5388422Abstract: An air conditioning system in which a single heat source unit (A) comprising a compressor (1), a four-way valve (2), a heat source unit side heat exchanger (3) and an accumulator (4) is connected to a plurality of indoor units (B, C, D) through a first and a second connection pipes (6, 7). Each indoor unit (B, C, D) comprises a suction air temperature detecting device (50) for detecting a suction air temperature of the indoor unit, an opening degree setting device for setting a minimum valve opening degree of the first flow rate controller 9 in accordance with the difference between the target temperature and the suction air temperature and a first valve opening degree control device (52) for controlling the valve opening degree of the first flow rate controller 9 at a predetermined rate to the minimum valve opening degree.Type: GrantFiled: March 24, 1993Date of Patent: February 14, 1995Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Noriaki Hayashida, Takashi Nakamura, Hidekazu Tani, Tomohiko Kasai, Junichi Kameyama, Shigeo Takata
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Patent number: 5309733Abstract: An air conditioning system in which a single heat source unit (A) comprising a compressor (1), a four-way valve (2), a heat source unit side heat exchanger (3) and an accumulator (4) is connected to a plurality of indoor units (B, C, D) through a first and a second connection pipes (6, 7). Each indoor unit (B, C, D) comprises a suction air temperature detecting device (50) for detecting a suction air temperature of the indoor unit, an opening degree setting device for setting a minimum valve opening degree of the first flow rate controller 9 in accordance with the difference between the target temperature and the suction air temperature and a first valve opening degree control device (52) for controlling the valve opening degree of the first flow rate controller 9 at a predetermined rate to the minimum valve opening degree. A bypass system is further provided to enable an effective defrost operation.Type: GrantFiled: March 24, 1993Date of Patent: May 10, 1994Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Noriaki Hayashida, Takashi Nakamura, Hidekazu Tani, Tomohiko Kasai, Junichi Kameyama, Shigeo Takata
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Patent number: 5297392Abstract: An air conditioning apparatus which includes a single heat source device and plural indoor units including indoor heat exchangers. Some of the indoor units include a fan for introducing outdoor air, while others include a fan for circulating indoor air. In addition, a controller is provided for controlling operation of one or more of the indoor units to carry out heating, cooling or ventilation in response to a determination of the operation of one or more other indoor units.Type: GrantFiled: May 8, 1992Date of Patent: March 29, 1994Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Shigeo Takata, Hidekazu Tani, Takashi Nakamura, Noriaki Hayashida, Tomohiko Kasai, Junichi Kameyama
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Patent number: 5237833Abstract: An air conditioning system in which a single heat source unit (A) comprising a compressor (1), a four-way valve (2), a heat source unit side heat exchanger (3) and an accumulator (4) is connected to a plurality of indoor units (B, C, D) through a first and a second connection pipes (6, 7) Each indoor unit (B, C, D) comprises a suction air temperature detecting device (50) for detecting a suction air temperature of the indoor unit, an opening degree setting device for setting a minimum valve opening degree of the first flow rate controller 9 in accordance with the difference between the target temperature and the suction air temperature and a first valve opening degree control device (52) for controlling the valve opening degree of the first flow rate controller 9 at a predetermined rate to the minimum valve opening degree.Type: GrantFiled: December 30, 1991Date of Patent: August 24, 1993Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Noriaki Hayashida, Takashi Nakamura, Hidekazu Tani, Tomohiko Kasai, Junichi Kameyama, Shigeo Takata