Patents by Inventor Tadaharu Kishibe
Tadaharu Kishibe 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).
-
Patent number: 11174843Abstract: Solar thermal power generation equipment is equipped with a wind turbine, a compressor, a heat receiver that receives sunlight to heat a compressed medium from the compressor, a turbine driven by the compressed medium heated with the heat receiver, a power generator that performs power generation by driving of the turbine, a transmission mechanism that transmits the rotation of the wind turbine to the power generator, and a tower which supports these components. The wind turbine, the compressor, the turbine, and the power generator each constitute an array apparatus. The plurality of array apparatuses are arranged in a vertical direction.Type: GrantFiled: July 12, 2018Date of Patent: November 16, 2021Assignee: MITSUBISHI POWER, LTD.Inventors: Masahide Umaya, Masato Ota, Naoyuki Nagafuchi, Tadaharu Kishibe, Takahiro Marumoto, Masato Kurita
-
Patent number: 11060424Abstract: Provided is a solar thermal power generation facility that includes: a compressor; a medium heating heat receiver that receives sunlight and heats a compressed medium from the compressor; a turbine that is driven by the compressed medium heated by the medium heating heat receiver; a power generator that generates electric power by driving of the turbine; and a tower that supports these components. The compressor, the turbine, and the power generator are formed as arranged devices. A plurality of the arranged devices are aligned in a vertical direction.Type: GrantFiled: July 4, 2018Date of Patent: July 13, 2021Assignee: MITSUBISHI POWER, LTD.Inventors: Masahide Umaya, Masato Ota, Naoyuki Nagafuchi, Tadaharu Kishibe, Takahiro Marumoto, Masato Kurita
-
Publication number: 20200277935Abstract: Solar thermal power generation equipment is equipped with a wind turbine, a compressor, a heat receiver that receives sunlight to heat a compressed medium from the compressor, a turbine driven by the compressed medium heated with the heat receiver, a power generator that performs power generation by driving of the turbine, a transmission mechanism that transmits the rotation of the wind turbine to the power generator, and a tower which supports these components. The wind turbine, the compressor, the turbine, and the power generator each constitute an array apparatus. The plurality of array apparatuses are arranged in a vertical direction.Type: ApplicationFiled: July 12, 2018Publication date: September 3, 2020Inventors: Masahide UMAYA, Masato OTA, Naoyuki NAGAFUCHI, Tadaharu KISHIBE, Takahiro MARUMOTO, Masato KURITA
-
Publication number: 20200182094Abstract: Provided is a solar thermal power generation facility that includes: a compressor; a medium heating heat receiver that receives sunlight and heats a compressed medium from the compressor; a turbine that is driven by the compressed medium heated by the medium heating heat receiver; a power generator that generates electric power by driving of the turbine; and a tower that supports these components. The compressor, the turbine, and the power generator are formed as arranged devices. A plurality of the arranged devices are aligned in a vertical direction.Type: ApplicationFiled: July 4, 2018Publication date: June 11, 2020Applicant: Mitsubishi Hitachi Power Systems, Ltd.Inventors: Masahide Umaya, Masato Ota, Naoyuki Nagafuchi, Tadaharu Kishibe, Takahiro Marumoto, Masato Kurita
-
Patent number: 8459932Abstract: A bearing device of a gas turbine power generation equipment provides damping vibration of a shaft and lubricates and cools the bearing main body. The bearing devices have sleeves provided on the outer circumference sides of the bearing main bodies and bearing housings holding the respective sleeves via O-rings while each forming an annular clearance passage between each of the outer circumferences of the sleeves and a corresponding one of the bearing housings. The bearing housing has a feed-water hole communicating with the clearance passage and adapted to feed water thereto. The sleeve has a lead water hole communicating with the clearance passage and is adapted to lead water to the bearing main body, and a discharge hole which communicates with the clearance passage and is adapted to discharge water therefrom.Type: GrantFiled: August 18, 2006Date of Patent: June 11, 2013Assignee: Hitachi, Ltd.Inventors: Susumu Nakano, Tomoaki Inoue, Tadaharu Kishibe, Hiroyuki Shiraiwa
-
Patent number: 8308420Abstract: A centrifugal compressor is equipped with an impeller having a blade angle distribution that makes it possible to achieve a relatively wide operating range. The blade angle of a shroud side facing a circular plate of a blade is termed a first angle and a blade angle of a hub side disposed at the circular plate is a second. The shroud side is formed in a curved shape having an angle distribution from a front area in a shaft direction toward a centrifugal direction in which the first angle is the local maximum point before a substantially middle portion and the local minimum point after the substantially middle point. The hub side is formed in a curved shape having an angle distribution from the front area in the shaft direction toward the centrifugal direction in which the second angle is the maximum local point before the substantially middle portion.Type: GrantFiled: July 31, 2008Date of Patent: November 13, 2012Assignee: Hitachi Plant Technologies, Ltd.Inventors: Manabu Yagi, Tadaharu Kishibe, Takanori Shibata, Hideo Nishida, Hiromi Kobayashi, Tetsuya Kuwano
-
Patent number: 8287236Abstract: A multistage centrifugal compressor includes a rotary shaft, and multistage impellers attached to the rotary shaft. Each of the impellers includes a hub, a shroud and blades therebetween in a radial cascade arrangement. An annular suction passage for guiding the fluid flow from the inward radial direction to a blade inlet is disposed upstream of the centrifugal impeller. A diffuser is disposed downstream of the centrifugal impeller. A bend portion is disposed downstream of the diffuser, and a return channel with a guide blade portion is disposed downstream of the bend portion. The annular suction passage at a hub side includes an axial parallel portion.Type: GrantFiled: May 8, 2008Date of Patent: October 16, 2012Assignee: Hitachi Plant Technologies, Ltd.Inventors: Hideo Nishida, Hiromi Kobayashi, Masanori Tanaka, Tadaharu Kishibe, Manabu Yagi, Tetsuya Kuwano
-
Publication number: 20120210715Abstract: Disclosed is a highly efficient turbine nozzle blade that reduces the number of blades in an axial-flow turbine while reducing secondary-flow loss. In the nozzle blade, when a differential pressure between a pressure side and a suction side of each blade, at the same axial chord position of the blade, is defined as a load of the blade, and a ratio between axial chord length “Cx” of the blade and an axial distance “xp” from a leading edge of the blade at a maximum load position that maximizes the blade load is defined as a maximum load relative position, Cx is greater at a hub and tip than at an intermediate vertical portion, and simultaneously a maximum load relative position at the hub and tip is set to be nearer to a trailing edge thereof than a maximum load relative position of the intermediate vertical portion of the blade.Type: ApplicationFiled: February 15, 2012Publication date: August 23, 2012Applicant: Hitachi, Ltd.Inventors: Takanori Shibata, Kiyoshi Segawa, Tadaharu Kishibe, Seiichi Kimura, Goingwon Lee
-
Patent number: 7981254Abstract: In a heat pump system including a water purifier and an evaporator for evaporating feed-water to produce steam, water used for spray cooling is effectively used and productivity of purified water used for the spray cooling is increased. Discharged water from the water purifier is supplied to the evaporator when water used for spray cooling is produced by use of the water purifier. Otherwise, drain of the evaporator having higher temperature is supplied to the water purifier by using such a fact that in a reverse osmosis membrane type water purifier, the higher the temperature of feed-water is, the higher the purified water productivity becomes.Type: GrantFiled: August 29, 2008Date of Patent: July 19, 2011Assignee: Hitachi, Ltd.Inventors: Tadaharu Kishibe, Susumu Nakano, Takanori Shibata
-
Patent number: 7937947Abstract: The invention is intended to maintain turbine reliability when, based on a gas turbine designed for one desired cycle, a gas turbine for another different cycle is manufactured. A channel of a compressor is formed such that a mass flow of a fluid compressed by the compressor changes. Thus, when manufacturing, based on the gas turbine designed for one desired cycle, the gas turbine for another different cycle, turbine reliability can be maintained.Type: GrantFiled: June 24, 2008Date of Patent: May 10, 2011Assignee: Hitachi, Ltd.Inventors: Tadaharu Kishibe, Yasuo Takahashi, Hisashi Hamatake
-
Patent number: 7913495Abstract: The invention is intended to maintain turbine reliability when, based on a gas turbine designed for one desired cycle, a gas turbine for another different cycle is manufactured. A channel of a compressor is formed such that a mass flow of a fluid compressed by the compressor changes. Thus, when manufacturing, based on the gas turbine designed for one desired cycle, the gas turbine for another different cycle, turbine reliability can be maintained.Type: GrantFiled: June 24, 2008Date of Patent: March 29, 2011Assignee: Hitachi, Ltd.Inventors: Tadaharu Kishibe, Yasuo Takahashi, Hisashi Hamatake
-
Publication number: 20100111681Abstract: A bearing device of a gas turbine power generation equipment provides damping vibration of a shaft and lubricates and cools the bearing main body. The bearing devices have sleeves provided on the outer circumference sides of the bearing main bodies and bearing housings holding the respective sleeves via O-rings while each forming an annular clearance passage between each of the outer circumferences of the sleeves and a corresponding one of the bearing housings. The bearing housing has a feed-water hole communicating with the clearance passage and adapted to feed water thereto. The sleeve has a lead water hole communicating with the clearance passage and is adapted to lead water to the bearing main body, and a discharge hole which communicates with the clearance passage and is adapted to discharge water therefrom.Type: ApplicationFiled: August 18, 2006Publication date: May 6, 2010Inventors: Susumu Nakano, Tomoaki Inoue, Tadaharu Kishibe, Hiroyuki Shiraiwa
-
Patent number: 7654094Abstract: A turbine nozzle (2) that, among components constructing a turbine, reaches particularly high temperature is efficiently cooled with a relatively simple structure. A double casing structure in which a turbine casing (7) is provided outside a turbine shell (5) is formed. The turbine casing (7) functions as a flow path (24) for compressed air (20?21) before combustion. The turbine shell (5) covers a turbine nozzle (2) and a radial turbine impeller (3) and forms flow paths (15, 16) for combustion gas (10?11?12?13). The compressed air (21) before combustion flowing in the flow path (24), for compressed air, having air-tightness between itself and the outside air is blown to the turbine nozzle (2) through a through-hole (51) penetrating both wall surfaces of the turbine shell (5) so that the turbine nozzle (2) is evenly cooled and the compressed air used to cool the turbine nozzle is made to flow toward the turbine impeller (3).Type: GrantFiled: March 9, 2004Date of Patent: February 2, 2010Assignee: Hitachi, Ltd.Inventors: Manabu Yagi, Kuniyoshi Tsubouchi, Tadaharu Kishibe, Susumu Nakano, Satoshi Dodo
-
Publication number: 20090107156Abstract: In a heat pump system including a water purifier and an evaporator for evaporating feed-water to produce steam, water used for spray cooling is effectively used and productivity of purified water used for the spray cooling is increased. Discharged water from the water purifier is supplied to the evaporator when water used for spray cooling is produced by use of the water purifier. Otherwise, drain of the evaporator having higher temperature is supplied to the water purifier by using such a fact that in a reverse osmosis membrane type water purifier, the higher the temperature of feed-water is, the higher the purified water productivity becomes.Type: ApplicationFiled: August 29, 2008Publication date: April 30, 2009Inventors: Tadaharu KISHIBE, Susumu Nakano, Takanori Shibata
-
Publication number: 20090096317Abstract: There is provided a rotating machine including a stator and a rotor, in which the inner side surface (facing the stator) of the axial end structures of the stator is provided with grooves filled with an electrically nonconductive material.Type: ApplicationFiled: October 14, 2008Publication date: April 16, 2009Inventors: Manabu Sasaki, Hiroyuki Mikami, Tadaharu Kishibe
-
Publication number: 20090035122Abstract: A centrifugal compressor is equipped with an impeller having a blade angle distribution that makes it possible to achieve a relatively wide operating range. The blade angle of a shroud side facing a circular plate of a blade is termed a first angle and a blade angle of a hub side disposed at the circular plate is a second angle. The shroud side is formed in a curved shape having an angle distribution from a front area in a shaft direction toward a centrifugal direction in which the first angle is the local maximum point before a substantially middle portion and the local minimum point after the substantially middle point. The hub side is formed in a curved shape having an angle distribution from the front area in the shaft direction toward the centrifugal direction in which the second angle is the maximum local point before the substantially middle portion.Type: ApplicationFiled: July 31, 2008Publication date: February 5, 2009Inventors: Manabu YAGI, Tadaharu Kishibe, Takanori Shibata, Hideo Nishida, Hiromi Kobayashi, Tetsuya Kuwano
-
Publication number: 20080301939Abstract: The invention is intended to maintain turbine reliability when, based on a gas turbine designed for one desired cycle, a gas turbine for another different cycle is manufactured. A channel of a compressor is formed such that a mass flow of a fluid compressed by the compressor changes. Thus, when manufacturing, based on the gas turbine designed for one desired cycle, the gas turbine for another different cycle, turbine reliability can be maintained.Type: ApplicationFiled: June 24, 2008Publication date: December 11, 2008Inventors: Tadaharu Kishibe, Yasuo Takahashi, Hisashi Hamatake
-
Publication number: 20080279680Abstract: A multistage centrifugal compressor includes a rotary shaft, and multistage impellers attached to the rotary shaft. Each of the impellers includes a hub, a shroud and blades therebetween in a radial cascade arrangement. An annular suction passage for guiding the fluid flow from the inward radial direction to a blade inlet is disposed upstream of the centrifugal impeller. A diffuser is disposed downstream of the centrifugal impeller. A bend portion is disposed downstream of the diffuser, and a return channel with a guide blade portion is disposed downstream of the bend portion. The annular suction passage at a hub side includes an axial parallel portion.Type: ApplicationFiled: May 8, 2008Publication date: November 13, 2008Applicant: Hitachi Plant Technologies, Ltd.Inventors: Hideo NISHIDA, Hiromi KOBAYASHI, Masanori TANAKA, Tadaharu KISHIBE, Manabu YAGI, Tetsuya KUWANO
-
Publication number: 20080263862Abstract: The invention is intended to maintain turbine reliability when, based on a gas turbine designed for one desired cycle, a gas turbine for another different cycle is manufactured. A channel of a compressor is formed such that a mass flow of a fluid compressed by the compressor changes. Thus, when manufacturing, based on the gas turbine designed for one desired cycle, the gas turbine for another different cycle, turbine reliability can be maintained.Type: ApplicationFiled: June 24, 2008Publication date: October 30, 2008Inventors: Tadaharu Kishibe, Yasuo Takahashi, Hisashi Hamatake
-
Patent number: 7441410Abstract: The invention is intended to maintain turbine reliability when, based on a gas turbine designed for one desired cycle, a gas turbine for another different cycle is manufactured. A channel of a compressor is formed such that a mass flow of a fluid compressed by the compressor changes. Thus, when manufacturing, based on the gas turbine designed for one desired cycle, the gas turbine for another different cycle, turbine reliability can be maintained.Type: GrantFiled: October 14, 2004Date of Patent: October 28, 2008Assignee: Hitachi, Ltd.Inventors: Tadaharu Kishibe, Yasuo Takahashi, Hisashi Hamatake