Patents by Inventor Hideya Matsui
Hideya Matsui 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: 9512858Abstract: An ejector includes (i) a body part including a depressurizing space in which a refrigerant flowing out of a swirling space is depressurized, a suction passage that draws a refrigerant from an external, and a pressurizing space in which a jet refrigerant jetted from the depressurizing space and a suction refrigerant drawn from the suction passage are mixed with each other to be pressurized, (ii) a conical passage formation member which is arranged inside the body part, and (iii) a swirling promotion part. A nozzle passage is provided in the depressurizing space on an outer peripheral surface of the passage formation member, and a diffuser passage is provided in the pressurizing space on the outer peripheral surface of the passage formation member. The swirling promotion part includes a flow regulation plate that promotes a swirling flow of the refrigerant flowing in the diffuser passage.Type: GrantFiled: November 13, 2013Date of Patent: December 6, 2016Assignee: DENSO CORPORATIONInventors: Daisuke Nakajima, Haruyuki Nishijima, Etsuhisa Yamada, Hideya Matsui, Kenta Kayano, Yoshiyuki Yokoyama, Tatsuhiro Suzuki
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Patent number: 9394921Abstract: An ejector includes a body member having a depressurizing space that depressurizes a refrigerant which flows out of a swirling space that swirls the refrigerant, a suction passage that draws the refrigerant from an external, and a pressurizing space that mixes a refrigerant jetted from the depressurizing space with a refrigerant drawn from the suction passage and pressurizes the mixed refrigerant, and a conical passage formation member arranged in the depressurizing space and in the pressurizing space. A nozzle passage is formed of a refrigerant passage between an inner peripheral surface of the depressurizing space and an outer peripheral surface of the passage formation member, and a diffuser passage is formed of a refrigerant passage between an inner peripheral surface of a portion that defines the pressurizing space and an outer peripheral surface of the passage formation member.Type: GrantFiled: January 29, 2013Date of Patent: July 19, 2016Assignee: DENSO CORPORATIONInventors: Etsuhisa Yamada, Haruyuki Nishijima, Tatsuhiro Suzuki, Yoshiaki Takano, Hideya Matsui, Yoshiyuki Yokoyama
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Publication number: 20150316075Abstract: An ejector includes (i) a body part including a depressurizing space in which a refrigerant flowing out of a swirling space is depressurized, a suction passage that draws a refrigerant from an external, and a pressurizing space in which a jet refrigerant jetted from the depressurizing space and a suction refrigerant drawn from the suction passage are mixed with each other to be pressurized, (ii) a conical passage formation member which is arranged inside the body part, and (iii) a swirling promotion part. A nozzle passage is provided in the depressurizing space on an outer peripheral surface of the passage formation member, and a diffuser passage is provided in the pressurizing space on the outer peripheral surface of the passage formation member. The swirling promotion part includes a flow regulation plate that promotes a swirling flow of the refrigerant flowing in the diffuser passage.Type: ApplicationFiled: November 13, 2013Publication date: November 5, 2015Inventors: Daisuke NAKAJIMA, Haruyuki NISHIJIMA, Etsuhisa YAMADA, Hideya MATSUI, Kenta KAYANO, Yoshiyuki YOKOYAMA, Tatsuhiro SUZUKI
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Publication number: 20150033790Abstract: An ejector includes a body member having a depressurizing space that depressurizes a refrigerant which flows out of a swirling space that swirls the refrigerant, a suction passage that draws the refrigerant from an external, and a pressurizing space that mixes a refrigerant jetted from the depressurizing space with a refrigerant drawn from the suction passage and pressurizes the mixed refrigerant, and a conical passage formation member arranged in the depressurizing space and in the pressurizing space. A nozzle passage is formed of a refrigerant passage between an inner peripheral surface of the depressurizing space and an outer peripheral surface of the passage formation member, and a diffuser passage is formed of a refrigerant passage between an inner peripheral surface of a portion that defines the pressurizing space and an outer peripheral surface of the passage formation member.Type: ApplicationFiled: January 29, 2013Publication date: February 5, 2015Applicant: DENSO CORPORATIONInventors: Etsuhisa Yamada, Haruyuki Nishijima, Tatsuhiro Suzuki, Yoshiaki Takano, Hideya Matsui, Yoshiyuki Yokoyama
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Patent number: 8429931Abstract: An ejector refrigerant cycle device includes a radiator for radiating heat of high-temperature and high-pressure refrigerant discharged from a compressor, a branch portion for branching a flow of refrigerant on a downstream side of the radiator into a first stream and a second stream, an ejector that includes a nozzle portion for decompressing and expending refrigerant of the first stream from the branch portion, a decompression portion for decompressing and expanding refrigerant of the second stream from the branch portion, and an evaporator for evaporating refrigerant on a downstream side of the decompression portion. The evaporator has a refrigerant outlet coupled to the refrigerant suction port of the ejector. Furthermore, a refrigerant radiating portion is provided for radiating heat of refrigerant while the decompression portion decompresses and expands refrigerant. For example, the refrigerant radiating portion is provided in an inner heat exchanger.Type: GrantFiled: February 9, 2010Date of Patent: April 30, 2013Assignee: Denso CorporationInventors: Makoto Ikegami, Hirotsugu Takeuchi, Etsuhisa Yamada, Haruyuki Nishijima, Hideya Matsui
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Patent number: 8191383Abstract: An ejector device includes a nozzle having an inner wall surface defining a circular cross-sectional fluid passage extending from an inlet to a jet port. Furthermore, the fluid passage has a throat portion at a position between the inlet and the jet port, and a passage expanding portion in which the cross-sectional area of the fluid passage is enlarged from the throat portion as toward downstream. The passage expanding portion includes a middle portion in which the inner wall surface is expanded in a fluid flow direction by a first expanding angle, and an outlet portion from a downstream end of the middle portion to the jet port, in which the inner wall surface is expanded in the fluid flow direction by a second expanding angle that is larger than the first expanding angle. The ejector device can be suitably used for a refrigeration cycle apparatus.Type: GrantFiled: March 3, 2009Date of Patent: June 5, 2012Assignee: Denso CorporationInventors: Gouta Ogata, Haruyuki Nishijima, Etsuhisa Yamada, Mika Gocho, Hideya Matsui, Kenta Kayano, Teruyuki Hano
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Patent number: 8105050Abstract: A housing is configured into a tubular form and receives at least a portion of an ejector functional unit, which includes a nozzle and a body. A housing side opening radially penetrates through an outer peripheral wall surface and an inner peripheral wall surface of the housing and communicates with the fluid suction opening of the body. The housing side opening is adapted to join with a suction opening side external device, through which the fluid is drawn into the fluid suction opening.Type: GrantFiled: May 28, 2009Date of Patent: January 31, 2012Assignee: Denso CorporationInventors: Etsuhisa Yamada, Haruyuki Nishijima, Kazunori Mizutori, Gouta Ogata, Hideya Matsui, Hiroshi Oshitani, Youhei Nagano
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Publication number: 20110167851Abstract: A refrigerant cycle device having an ejector includes a first evaporator for evaporating refrigerant flowing out of the ejector, a first passage portion for guiding refrigerant to a refrigerant suction port of the ejector, a throttle unit located in the first passage portion, a second evaporator located in the first passage portion downstream of the throttle unit, a bypass passage portion for guiding hot gas refrigerant from a compressor into the second evaporator, a bypass opening and closing unit provided in the bypass passage portion. Furthermore, a second passage portion is branched from the bypass passage portion downstream of the bypass opening and closing unit, and a flow control unit is provided in the second passage portion to prevent a flow of refrigerant from the first evaporator to the second evaporator through the second passage portion. Therefore, defrosting of both the first and second evaporators can be suitably performed.Type: ApplicationFiled: March 23, 2011Publication date: July 14, 2011Applicant: DENSO CORPORATIONInventors: Haruyuki Nishijima, Etsuhisa Yamada, Hideya Matsui, Hirotsugu Takeuchi, Gentarou Oomura, Ryoko Fujiwara
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Publication number: 20100139315Abstract: An ejector refrigerant cycle device includes a radiator for radiating heat of high-temperature and high-pressure refrigerant discharged from a compressor, a branch portion for branching a flow of refrigerant on a downstream side of the radiator into a first stream and a second stream, an ejector that includes a nozzle portion for decompressing and expending refrigerant of the first stream from the branch portion, a decompression portion for decompressing and expanding refrigerant of the second stream from the branch portion, and an evaporator for evaporating refrigerant on a downstream side of the decompression portion. The evaporator has a refrigerant outlet coupled to the refrigerant suction port of the ejector. Furthermore, a refrigerant radiating portion is provided for radiating heat of refrigerant while the decompression portion decompresses and expands refrigerant. For example, the refrigerant radiating portion is provided in an inner heat exchanger.Type: ApplicationFiled: February 9, 2010Publication date: June 10, 2010Inventors: Makoto Ikegami, Hirotsugu Takeuchi, Etsuhisa Yamada, Haruyuki Nishijima, Hideya Matsui
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Patent number: 7690218Abstract: An ejector refrigerant cycle device includes a radiator for radiating heat of high-temperature and high-pressure refrigerant discharged from a compressor, a branch portion for branching a flow of refrigerant on a downstream side of the radiator into a first stream and a second stream, an ejector that includes a nozzle portion for decompressing and expending refrigerant of the first stream from the branch portion, a decompression portion for decompressing and expanding refrigerant of the second stream from the branch portion, and an evaporator for evaporating refrigerant on a downstream side of the decompression portion. The evaporator has a refrigerant outlet coupled to the refrigerant suction port of the ejector. Furthermore, a refrigerant radiating portion is provided for radiating heat of refrigerant while the decompression portion decompresses and expands refrigerant. For example, the refrigerant radiating portion is provided in an inner heat exchanger.Type: GrantFiled: January 12, 2007Date of Patent: April 6, 2010Assignee: Denso CorporationInventors: Makoto Ikegami, Hirotsugu Takeuchi, Etsuhisa Yamada, Haruyuki Nishijima, Hideya Matsui
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Publication number: 20100024453Abstract: A mixed refrigerant including a plurality of component refrigerants circulates in a refrigeration cycle device. An expansion valve includes a power element. A filled fluid filled in the power element is one component refrigerant in the plurality of component refrigerants. A slope of a saturated vapor pressure curve of the filled fluid is larger than the slope of the saturated vapor pressure curve SV0 of the mixed refrigerant. Thereby, an opening degree of the expansion valve can be prevented from exceeding in a low-temperature region, and the opening degree corresponding to a load can be obtained in a high-temperature region.Type: ApplicationFiled: July 16, 2009Publication date: February 4, 2010Applicant: DENSO CORPORATIONInventors: Hideya Matsui, Haruyuki Nishijima, Etsuhisa Yamada
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Publication number: 20090297367Abstract: A housing is configured into a tubular form and receives at least a portion of an ejector functional unit, which includes a nozzle and a body. A housing side opening radially penetrates through an outer peripheral wall surface and an inner peripheral wall surface of the housing and communicates with the fluid suction opening of the body. The housing side opening is adapted to join with a suction opening side external device, through which the fluid is drawn into the fluid suction opening.Type: ApplicationFiled: May 28, 2009Publication date: December 3, 2009Applicant: DENSO CORPORATIONInventors: Etsuhisa Yamada, Haruyuki Nishijima, Kazunori Mizutori, Gouta Ogata, Hideya Matsui, Hiroshi Oshitani, Youhei Nagano
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Publication number: 20090229304Abstract: An ejector device includes a nozzle having an inner wall surface defining a circular cross-sectional fluid passage extending from an inlet to a jet port. Furthermore, the fluid passage has a throat portion at a position between the inlet and the jet port, and a passage expanding portion in which the cross-sectional area of the fluid passage is enlarged from the throat portion as toward downstream. The passage expanding portion includes a middle portion in which the inner wall surface is expanded in a fluid flow direction by a first expanding angle, and an outlet portion from a downstream end of the middle portion to the jet port, in which the inner wall surface is expanded in the fluid flow direction by a second expanding angle that is larger than the first expanding angle. The ejector device can be suitably used for a refrigeration cycle apparatus.Type: ApplicationFiled: March 3, 2009Publication date: September 17, 2009Applicant: DENSO CORPORATIONInventors: Gouta Ogata, Haruyuki Nishijima, Etsuhisa Yamada, Mika Gocho, Hideya Matsui, Kenta Kayano, Teruyuki Hano
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Publication number: 20090229306Abstract: A vapor compression refrigerating cycle apparatus includes a compressor, a radiator, a first decompressing device, a second decompressing device, a flow distributor, an ejector, and a suction-side evaporator. The vapor compression refrigerating cycle apparatus is configured such that refrigerant pressure (P0) at an inlet of the first decompressing device, refrigerant pressure (P) at an inlet of a nozzle portion of the ejector, refrigerant pressure (P2) at an outlet of the nozzle portion satisfy a pressure relationship of 0.1×(P0?P2)?(P0?P)?0.6×(P0?P2). Alternative to or in addition to the pressure relationship, the vapor compression refrigerating cycle apparatus is configured such that a dryness of refrigerant at the inlet of the nozzle portion is in a range between 0.003 and 0.14.Type: ApplicationFiled: March 4, 2009Publication date: September 17, 2009Applicant: DENSO CORPORATIONInventors: Etsuhisa Yamada, Haruyuki Nishijima, Gouta Ogata, Mika Gocho, Hideya Matsui
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Publication number: 20080041079Abstract: A refrigerant cycle device having an ejector includes a first evaporator for evaporating refrigerant flowing out of the ejector, a first passage portion for guiding refrigerant to a refrigerant suction port of the ejector, a throttle unit located in the first passage portion, a second evaporator located in the first passage portion downstream of the throttle unit, a bypass passage portion for guiding hot gas refrigerant from a compressor into the second evaporator, a bypass opening and closing unit provided in the bypass passage portion. Furthermore, a second passage portion is branched from the bypass passage portion downstream of the bypass opening and closing unit, and a flow control unit is provided in the second passage portion to prevent a flow of refrigerant from the first evaporator to the second evaporator through the second passage portion. Therefore, defrosting of both the first and second evaporators can be suitably performed.Type: ApplicationFiled: June 21, 2007Publication date: February 21, 2008Applicant: DENSO CorporationInventors: Haruyuki Nishijima, Etsuhisa Yamada, Hideya Matsui, Hirotsugu Takeuchi, Gentarou Oomura, Ryoko Fujiwara
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Publication number: 20080000263Abstract: A distributor able to evenly supply influent two-phase refrigerant flowing in by various flow states to different pipes with an extremely small pressure loss, that is, a distributor of a gas-liquid two-phase fluid distributing a gas-liquid two-phase fluid flowing in from an inlet pipe into a plurality of distribution pipes, provided with a cylindrical vessel with a cylindrical upper part, an inlet pipe connected in a tangential direction with respect to a circular cross section of the upper portion of the cylindrical vessel, and distribution pipes connected to a lower portion of the cylindrical vessel.Type: ApplicationFiled: June 26, 2007Publication date: January 3, 2008Applicant: DENSO CorporationInventors: Gentarou Oomura, Haruyuki Nishijima, Etsuhisa Yamada, Hirotsugu Takeuchi, Hideya Matsui, Ryoko Fujiwara
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Publication number: 20070163293Abstract: An ejector refrigerant cycle device includes a radiator for radiating heat of high-temperature and high-pressure refrigerant discharged from a compressor, a branch portion for branching a flow of refrigerant on a downstream side of the radiator into a first stream and a second stream, an ejector that includes a nozzle portion for decompressing and expending refrigerant of the first stream from the branch portion, a decompression portion for decompressing and expanding refrigerant of the second stream from the branch portion, and an evaporator for evaporating refrigerant on a downstream side of the decompression portion. The evaporator has a refrigerant outlet coupled to the refrigerant suction port of the ejector. Furthermore, a refrigerant radiating portion is provided for radiating heat of refrigerant while the decompression portion decompresses and expands refrigerant. For example, the refrigerant radiating portion is provided in an inner heat exchanger.Type: ApplicationFiled: January 12, 2007Publication date: July 19, 2007Applicant: DENSO CorporationInventors: Makoto Ikegami, Hirotsugu Takeuchi, Etsuhisa Yamada, Haruyuki Nishijima, Hideya Matsui