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公开(公告)号：US20180058738A1
公开(公告)日：2018-03-01
申请号：US15554549
申请日：2016-02-26
Applicant: DENSO CORPORATION
Inventor： Yoshiyuki YOKOYAMA , Haruyuki NISHIJIMA , Yoshiaki TAKANO
CPC classification number: F25B41/04 , F04F5/04 , F04F5/42 , F04F5/44 , F04F5/46 , F04F5/461 , F04F5/48 , F04F5/54 , F25B1/08 , F25B19/005
Abstract: An ejector includes a nozzle, a swirl flow generation portion, a body including a refrigerant suction port and a diffuser portion, a passage forming member, and an actuation device moving the passage forming member. A nozzle passage is defined between the nozzle and the passage forming member. A smallest passage cross-sectional area portion is provided in the nozzle passage. A swirl space that has a shape of a revolution and is coaxial with the nozzle, and a refrigerant inflow passage through which the refrigerant flows into the swirl space are defined in the swirl flow generation portion. The ejector further includes an area adjustment device that changes the passage cross-sectional area of the refrigerant inflow passage. According to this, an efficiency of energy conversion in the nozzle passage can be improved.
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公开(公告)号：US20180045225A1
公开(公告)日：2018-02-15
申请号：US15556486
申请日：2016-03-02
Applicant: DENSO CORPORATION
Inventor： Yoshiyuki YOKOYAMA , Haruyuki NISHIJIMA , Etsuhisa YAMADA , Ryota NAKASHIMA , Yoshiaki TAKANO , Kazunori MIZUTORI , Yorito KOHARA , Hiroshi SHINTANI
CPC classification number: F04F5/463 , F04F5/04 , F04F5/46 , F25B41/00 , F25B2341/001 , F25B2341/0012
Abstract: An ejector has a nozzle, a body, a passage defining member and a drive portion. The body has a refrigerant suction port and a pressure increasing portion. A nozzle passage is defined between an inner surface of the nozzle and an outer surface of the passage defining member and has a minimum sectional area portion, a tapered portion, and an expansion portion. The minimum sectional area portion has a smallest passage sectional area. The tapered portion is located upstream of the minimum sectional area portion in a refrigerant flow direction and has a passage sectional area decreasing toward the minimum sectional area portion gradually. The expansion portion is located downstream of the minimum sectional area portion in the refrigerant flow direction and has a passage sectional area increasing gradually. The passage defining member has a groove that is recessed to increase the passage sectional area of the nozzle passage.
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公开(公告)号：US20170211850A1
公开(公告)日：2017-07-27
申请号：US15328537
申请日：2015-07-14
Applicant: DENSO CORPORATION
Inventor： Ryu FUKUSHIMA , Yoshiyuki YOKOYAMA , Haruyuki NISHIJIMA
CPC classification number: F25B1/06 , F25B40/02 , F25B41/00 , F25B41/043 , F25B41/062 , F25B43/00 , F25B49/02 , F25B2341/0011 , F25B2400/0407 , F25B2400/23 , F25B2500/18 , F25B2600/0253 , F25B2700/195 , F25B2700/197 , F25B2700/2104 , F25B2700/2106 , F25B2700/21163 , F25B2700/21175 , Y02B30/741
Abstract: An ejector refrigeration cycle includes a bypass passage that guides a refrigerant on an outlet side of an evaporator drawn from a refrigerant suction port of an ejector to a suction port side of a compressor while bypassing a diffuser passage of the ejector. A differential pressure regulating valve is disposed as a bypass flow-rate adjustment device that adjusts a bypass flow rate of the refrigerant circulating though the bypass passage. An enlarged portion for gradually enlarging the passage area is formed at a most downstream part of the refrigerant flow in the bypass passage. During a low-load operation, the differential pressure regulating valve increases the bypass flow rate, thereby allowing the refrigerant to flow into the evaporator connected to the upstream side of a refrigerant suction port using the suction effect of the compressor.
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公开(公告)号：US20240090090A1
公开(公告)日：2024-03-14
申请号：US18510357
申请日：2023-11-15
Applicant: DENSO CORPORATION
Inventor： Yoshiyuki YOKOYAMA , Koji Ota , Taro Ogura , Fuminobu Mikami
CPC classification number: H05B3/84 , H05B1/0236 , B60H1/00735
Abstract: A transparent conductive film is disposed on the light-transmitting region of the windshield. A first electrode portion and a second electrode portion are arranged to face each other in a vertical direction of a vehicle. A third electrode portion and a fourth electrode portion are arranged to face each other in a direction crossing the vertical direction of the vehicle. A control device is capable of implementing multiple energization modes. In a first mode among the plurality of energization modes, one of the first electrode portion and the second electrode portion is set to a high potential and the other is set to a low potential, or one of the third electrode portion and the fourth electrode portion is set to a high potential and the other is set to a low potential.
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公开(公告)号：US20190032677A1
公开(公告)日：2019-01-31
申请号：US16073824
申请日：2017-01-24
Applicant: DENSO CORPORATION
Inventor： Haruyuki NISHIJIMA , Yoshiaki TAKANO , Yoshiyuki YOKOYAMA , Hiroshi OSHITANI , Yohei NAGANO , Ryota NAKASHIMA
Abstract: An ejector includes a body including an inflow space into which a refrigerant flows, a passage formation member disposed inside the body and having a conical shape, and a nozzle passage having an annular cross section which functions as a nozzle and a diffuser passage having an annular cross section which functions as a pressure increase portion, the nozzle passage and the diffuser passage being disposed between an inner wall surface of the body and a conical lateral surface of the passage formation member. A drive mechanism that displaces the passage formation member in a direction along a center axis is coupled to an upstream actuating bar which extends from the passage formation member toward the inflow space and is slidably supported by the body. Center axes of the passage formation member, the upstream actuating bar and the inflow space are coaxial with each other.
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Patent Agency Ranking
公开(公告)号：US20170297416A1
公开(公告)日：2017-10-19
申请号：US15513496
申请日：2015-08-18
Applicant: DENSO CORPORATION
Inventor： Toshiyuki TASHIRO , Masahiro YAMADA , Makoto KUME , Haruyuki NISHIJIMA , Youhei NAGANO , Yoshiyuki YOKOYAMA , Yoshinori ARAKI
IPC: B60H1/32
CPC classification number: B60H1/3211 , B60H2001/3255 , B60H2001/3277 , B60H2001/3285 , B60H2001/3298 , F25B27/00 , F25B40/02 , F25B41/00 , F25B41/062 , F25B49/02 , F25B2327/001 , F25B2341/0012 , F25B2341/0014 , F25B2400/0403 , F25B2400/0417 , F25B2400/121 , F25B2400/23 , F25B2500/18 , F25B2600/2501 , F25B2700/1931 , F25B2700/2104 , F25B2700/2106 , F25B2700/2117
Abstract: An ejector refrigeration cycle device includes: a radiator that dissipates heat from a refrigerant discharged from a compressor; an ejector module that decompresses the refrigerant cooled by the radiator; and an evaporator that evaporates a liquid-phase refrigerant separated in a gas-liquid separation space of the ejector module. A grille shutter is disposed as an inflow-pressure increasing portion between the radiator and a cooling fan blowing the outside air toward the radiator. The grille shutter is operated to decrease the volume of the outside air to be blown toward the radiator when an outside air temperature is equal to or lower than a reference outside air temperature, thereby increasing the pressure of the inflow refrigerant to flow into a nozzle passage of the ejector module.
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公开(公告)号：US20160209094A1
公开(公告)日：2016-07-21
申请号：US14914573
申请日：2014-08-21
Applicant: DENSO CORPORATION
Inventor： Yoshiyuki YOKOYAMA , Etsuhisa YAMADA , Haruyuki NISHIJIMA , Yoshiaki TAKANO
CPC classification number: F25B43/02 , B60H2001/3298 , F25B40/00 , F25B40/06 , F25B41/00 , F25B41/067 , F25B43/006 , F25B2341/0012 , F25B2400/051
Abstract: An ejector-type refrigeration cycle includes an upstream side gas-liquid separator that separates a refrigerant that has flowed out of a diffuser portion of an ejector into gas and liquid and allows the separated liquid-phase refrigerant to flow to an evaporator without storing the separated liquid-phase refrigerant, and a downstream side gas-liquid separator that separates the refrigerant flowing out of the upstream side gas-liquid separator into gas and liquid, stores the separated liquid-phase refrigerant, and allows the separated gas-phase refrigerant to flow out toward an inlet side of a compressor. The ejector-type refrigeration cycle includes a refrigerant oil bypass passage for introducing a refrigerator oil within the diffuser portion into the downstream side gas-liquid separator.
Abstract translation: 喷射式制冷循环包括上游侧气液分离器，其将从喷射器的扩散器部分流出的制冷剂分离成气体和液体，并且允许分离的液相制冷剂流入蒸发器而不存储分离的 液相制冷剂和将从上游侧气液分离器流出的制冷剂分离成气液分离的下游侧气液分离器，存储分离出的液相制冷剂，并使分离的气相制冷剂流通 朝向压缩机的入口侧。 喷射式制冷循环包括用于将扩散器部内的冷冻机油引入下游侧气液分离器的制冷剂油旁路通路。
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公开(公告)号：US20150316075A1
公开(公告)日：2015-11-05
申请号：US14443859
申请日：2013-11-13
Applicant: DENSO CORPORATION
Inventor： Daisuke NAKAJIMA , Haruyuki NISHIJIMA , Etsuhisa YAMADA , Hideya MATSUI , Kenta KAYANO , Yoshiyuki YOKOYAMA , Tatsuhiro SUZUKI
IPC: F04F5/46
CPC classification number: F04F5/46 , F25B41/003 , F25B41/062 , F25B2341/0012 , F25B2600/0253 , Y02B30/741
Abstract: 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.
Abstract translation: 喷射器包括（i）主体部分，其包括减压空间，其中流出涡旋空间的制冷剂被减压，从外部抽取制冷剂的吸入通道和从减压喷射的喷射制冷剂的加压空间 空气和从吸入通道抽吸的吸入制冷剂彼此混合以加压，（ii）设置在主体部分内的锥形通道形成构件，和（iii）旋转促进部。 在通道形成构件的外周面上的减压空间设置有喷嘴通路，在通道形成构件的外周面上的加压空间设置有扩散通路。 旋转促进部包括促进在扩散器通路中流动的制冷剂的回旋流的流量调节板。
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公开(公告)号：US20210078542A1
公开(公告)日：2021-03-18
申请号：US17102199
申请日：2020-11-23
Applicant: DENSO CORPORATION
Inventor： Koji OTA , Kotaro FUKUDA , Yoshiyuki YOKOYAMA
Abstract: A snow removing device includes a heater that is disposed in a moving body that has a light including a cover and a cleaner that ejects a washer solution toward an outer surface of the cover. The cover is exposed to an outside of the moving body, covers a light source, and allows light emitted from the light source to pass therethrough. The snow removing device further includes a control unit that controls the heater to heat the cover first, and then controls the cleaner to eject a washer solution toward the outer surface of the cover.
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公开(公告)号：US20170211857A1
公开(公告)日：2017-07-27
申请号：US15500646
申请日：2015-07-27
Applicant: DENSO CORPORATION
Inventor： Kota TAKEICHI , Yoshiaki TAKANO , Haruyuki NISHIJIMA , Yoshiyuki YOKOYAMA
CPC classification number: F25B39/00 , B60H1/3227 , B60H2001/3298 , F25B31/002 , F25B39/02 , F25B41/00 , F25B2341/0011 , F25B2341/0012 , F25B2400/23 , F28D1/0435 , F28D1/053 , F28D1/05391 , F28D2021/0071 , F28D2021/0085 , F28F9/02 , F28F9/0204 , F28F9/22
Abstract: An evaporator includes an inlet side space of a leeward side upper tank into which a refrigerant flows from a refrigerant inlet port, and an inlet side turn path that is formed of a group of tubes and connected to the inlet side space. A ratio of a total passage cross-sectional area AT1 of the group of tubes forming the inlet side turn path to an inlet passage cross-sectional area Ain of the refrigerant inlet port is set at 3.5 or less, and a ratio of a longitudinal direction length Lg1 of the inlet side space to an inlet equivalent diameter Din of the refrigerant inlet port is set at 25 or less. Further, a Reynolds number Re of the refrigerant that has flowed into the inlet side turn path is set at 1800 or more.
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