Patents by Inventor Kenji Kinokami
Kenji Kinokami 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: 9027363Abstract: An economizer is provided in a multistage compression refrigeration system including a refrigerant circuit in which a multistage compressor, a condenser, a multistage expansion mechanism, and an evaporator are sequentially connected. The economizer includes: a tank having an introducing portion for introducing a refrigerant of the refrigerant circuit, a liquid outlet for guiding a liquid refrigerant into the evaporator, and a gas outlet for guiding a gas refrigerant into a medium pressure portion of the multistage compressor; and a float expansion valve, which forms part of the multistage expansion mechanism and is attached to the liquid outlet, and whose throttle amount is adjusted according to a level of the liquid refrigerant in the tank. Multiple ones of the liquid outlet and multiple ones of are provided.Type: GrantFiled: January 30, 2009Date of Patent: May 12, 2015Assignee: Daikin Industries, Ltd.Inventors: Yasutaka Takada, Nobuhiro Umeda, Kenji Kinokami
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Publication number: 20100326130Abstract: An economizer (24) is provided in a multistage compression refrigeration system including a refrigerant circuit in which a multistage compressor, a condenser, a multistage expansion mechanism, and an evaporator are sequentially connected. The economizer (24) includes: a tank (24a) having an introducing portion (24d) for introducing a refrigerant of the refrigerant circuit, a liquid outlet (24a) for guiding a liquid refrigerant into the evaporator, and a gas outlet (24c) for guiding a gas refrigerant into a medium pressure portion of the multistage compressor; and a float expansion valve (25), which forms part of the multistage expansion mechanism and is attached to the liquid outlet (24b), and whose throttle amount is adjusted according to a level of the liquid refrigerant in the tank (24a). Multiple ones of the liquid outlet (24b) and multiple ones of the float expansion valve (25) are provided.Type: ApplicationFiled: January 30, 2009Publication date: December 30, 2010Inventors: Yasutaka Takada, Nobuhiro Umeda, Kenji Kinokami
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Patent number: 7594409Abstract: A refrigerator has a discharge three-way valve (8) for connecting the discharge side of a compressor (1) to at least either a hot water heat exchanger (3) or an air heat exchanger (6) and has a suction three-way valve (9) for connecting the suction side of the compressor (1) to at least either the air heat exchanger (6) or a cold water heat exchanger (4). In an operation primarily for cooling, a controller (19) regulates the opening of the discharge three-way valve (8) such that a refrigerant with a flow rate higher than a minimum flow rate (Qs) determined based on an outside air temperature flows to the air heat exchanger (6).Type: GrantFiled: June 3, 2004Date of Patent: September 29, 2009Assignee: Daikin Industries, Ltd.Inventors: Koji Hayashi, Kenji Kinokami, Toshiyuki Momono
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Patent number: 7426837Abstract: A refrigerator includes a compressor compressing a refrigerant, a first liquid heat exchanger performing heat exchange between the refrigerant and a first liquid heat medium, an expander expanding the refrigerant, a second liquid heat exchanger performing heat exchange between the refrigerant and a second liquid heat medium, an air heat exchanger performing heat exchange between the refrigerant and air, a blower sending air to the air heat exchanger, a refrigerant flow rate regulator regulating a flow rate of the refrigerant of the first liquid heat exchanger, the second liquid heat exchanger and the air heat exchanger, a pressure sensor detecting a pressure value of the refrigerant of the air heat exchanger, a target pressure value setter setting a target pressure value of the refrigerant of the air heat exchanger in accordance with a target temperature value of the first liquid heat medium, and a blower controller controlling the blower so that the detection value of the pressure sensor becomes the target pType: GrantFiled: May 13, 2004Date of Patent: September 23, 2008Assignee: Daikin Industries, Ltd.Inventors: Koji Hayashi, Kenji Kinokami, Toshiyuki Momono
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Publication number: 20070051119Abstract: A refrigerator includes a compressor compressing a refrigerant, a first liquid heat exchanger performing heat exchange between the refrigerant and a first liquid heat medium, an expander expanding the refrigerant, a second liquid heat exchanger performing heat exchange between the refrigerant and a second liquid heat medium, an air heat exchanger performing heat exchange between the refrigerant and air, a blower sending air to the air heat exchanger, a refrigerant flow rate regulator regulating a flow rate of the refrigerant of the first liquid heat exchanger, the second liquid heat exchanger and the air heat exchanger, a pressure sensor detecting a pressure value of the refrigerant of the air heat exchanger, a target pressure value setter setting a target pressure value of the refrigerant of the air heat exchanger in accordance with a target temperature value of the first liquid heat medium, and a blower controller controlling the blower so that the detection value of the pressure sensor becomes the target pType: ApplicationFiled: May 13, 2004Publication date: March 8, 2007Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Koji Hayashi, Kenji Kinokami, Toshiyuki Momono
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Publication number: 20070006602Abstract: A refrigerator has a discharge three-way valve (8) for connecting the discharge side of a compressor (1) to at least either a hot water heat exchanger (3) or an air heat exchanger (6) and has a suction three-way valve (9) for connecting the suction side of the compressor (1) to at least either the air heat exchanger (6) or a cold water heat exchanger (4). In an operation primarily for cooling, a controller (19) regulates the opening of the discharge three-way valve (8) such that a refrigerant with a flow rate higher than a minimum flow rate (Qs) determined based on an outside air temperature flows to the air heat exchanger (6).Type: ApplicationFiled: June 3, 2004Publication date: January 11, 2007Inventors: Koji Hayashi, Kenji Kinokami, Toshiyuki Momono
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Patent number: 6007444Abstract: A mechanical transmission (3; MT) is interposed between an input shaft (1) and an output shaft (2), and a hydrostatic transmission (4; HST) is disposed in parallel with the MT (3). Between the input shaft (1) and the input side of the MT, a third planetary gear set (15) is interposed for reducing input shaft rpm to reduced rpm corresponding to a predetermined reduction gear ratio. A fourth selectively-engageable clutch (13) for applying rotation at the reduced rpm in low to intermediate change gear ratio ranges and a fifth selectively-engageable clutch (14) for applying rotation at the input shaft rpm in a high change gear ratio range are provided, so that the number of modes of operation is increased.Type: GrantFiled: September 11, 1998Date of Patent: December 28, 1999Assignee: Daikin Industries, Ltd.Inventor: Kenji Kinokami