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公开(公告)号：US20210215430A1
公开(公告)日：2021-07-15
申请号：US17218989
申请日：2021-03-31
Applicant: DENSO CORPORATION
Inventor： Ryohei SUGIMURA , Shinichiro TAKISE
Abstract: A heat exchanger includes plural tubes, a first tank, and a second tank. Refrigerant flows in order of a first internal passage of the first tank, a first tube, the second tank, a second tube, and a second internal passage of the first tank. A channel forming portion is provided inside the second tank to form a refrigerant channel having a cross-sectional area smaller than that of an internal passage of the second tank in a cross-section orthogonal to a longitudinal direction of the second tank. The refrigerant channel is arranged so that a projection area of the refrigerant channel overlaps the tube when viewed in the longitudinal direction of the second tank.
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公开(公告)号：US20230029816A1
公开(公告)日：2023-02-02
申请号：US17965095
申请日：2022-10-13
Applicant: DENSO CORPORATION
Inventor： Ryohei SUGIMURA , Hiroshi MIEDA
Abstract: The heat exchanger includes a first heat-exchange portion and a second heat-exchange portion. The first heat-exchange portion includes a first header tank having an inflow portion through which the heat medium flows into the first heat-exchange portion. The second heat-exchange portion includes a second header tank having an outflow portion through which the heat medium flows out of the second heat-exchange portion. The first header tank and the second header tank are connected to each other via a connecting portion. The connecting portion has a slit passing through the connecting portion.
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公开(公告)号：US20190226731A1
公开(公告)日：2019-07-25
申请号：US16307108
申请日：2017-03-23
Applicant: DENSO CORPORATION
Inventor： Yasuhiro MIZUNO , Isao TAMADA , Hiroshi MIEDA , Ryohei SUGIMURA
Abstract: A stack type heat exchanger includes a plurality of first plates and a plurality of second plates. At least one of the respective first plates and the respective second plates has a protrusion protruding from a main body of the first plate or the second plate toward a first flow path, the protrusion being located at a peripheral portion of a tank space in the first flow path. The first plate and the second plate are joined to each other through the protrusion. The protrusion has a top portion and a side wall portion. A part of the side wall portion adjacent to the tank space has a thick structure portion, an entire thickness of the thick structure portion being thick in a direction perpendicular to the stacking direction.
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公开(公告)号：US20210063067A1
公开(公告)日：2021-03-04
申请号：US17098487
申请日：2020-11-16
Applicant: DENSO CORPORATION
Inventor： Ryohei SUGIMURA , Masaaki KAWAKUBO , Daiki KATO , Hiroshi MIEDA , Tetsuya ITO
Abstract: A heat exchanger includes a heat exchanging portion, a reservoir that performs gas-liquid separation on a gas-liquid two-phase refrigerant that flows out from the heat exchanging portion into a gas-phase refrigerant and a liquid-phase refrigerant and stores the liquid-phase refrigerant, and an inflow passage that allows the gas-liquid two-phase refrigerant flowing out from the heat exchanging portion to flow into the reservoir. The inflow passage is connected so as to be in communication with an inlet port of the reservoir which is disposed above a liquid surface of the liquid-phase refrigerant stored in the reservoir.
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公开(公告)号：US20200158382A1
公开(公告)日：2020-05-21
申请号：US16774250
申请日：2020-01-28
Applicant: DENSO CORPORATION
Inventor： Daiki KATO , Masaaki KAWAKUBO , Tetsuya ITO , Yasuhiro KAWASE , Ryohei SUGIMURA , Hiroshi MIEDA
Abstract: In a heat pump cycle device, a flow passage switching portion includes a flow passage switching valve body configured to open and close a cooling side flow passage. A refrigerant circulation circuit includes a low-pressure flow passage through which a low-pressure refrigerant decompressed by a first decompressor flows toward a compressor in a heating mode, and a pre-evaporator flow passage provided between the flow passage switching valve body and a refrigerant inlet of an evaporator. The flow passage switching portion causes a pre-evaporator flow passage to communicate with the low-pressure flow passage while bypassing the evaporator when a refrigerant pressure in the low-pressure flow passage is lower than a refrigerant pressure in the pre-evaporator flow passage, in the heating mode.
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Patent Agency Ranking
公开(公告)号：US20200156444A1
公开(公告)日：2020-05-21
申请号：US16774469
申请日：2020-01-28
Applicant: DENSO CORPORATION
Inventor： Tetsuya ITO , Masaaki KAWAKUBO , Daiki KATO , Ryohei SUGIMURA , Yasuhiro KAWASE
Abstract: An integrated valve includes a body portion, a flow rate adjustment valve body, a flow passage switching valve body, and a shaft member. The body portion has formed therein a plurality of passages. The flow rate adjustment valve body is provided inside the body portion that adjusts a flow rate of fluid. The flow passage switching valve body is provided inside the body portion configured to switch a flow path of the predetermined fluid in the fluid circulation circuit, the flow passage switching valve body being switchable between distinct communication states. The shaft member is provided inside the body portion that interlocks the flow rate adjustment valve body and the flow passage switching valve body.
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公开(公告)号：US20170082381A1
公开(公告)日：2017-03-23
申请号：US15126442
申请日：2015-03-23
Applicant: DENSO CORPORATION
Inventor： Ryohei SUGIMURA , Mitsuharu INAGAKI , Mitsuyoshi SAITO
CPC classification number: F28F1/128 , B60H1/32 , F28D1/053 , F28D1/05383 , F28D20/02 , F28D2020/0013 , F28D2021/0085 , F28F1/30 , F28F2215/04 , F28F2240/00 , F28F2265/14 , Y02E60/145
Abstract: A heat exchanger includes: stacked tubes through which a refrigerant flows; and a fin joined to the tube to increase a heat exchange area with air flowing around the tube. A cross-section of the fin perpendicular to a flow direction of the air is shaped in a wave shape that has: planar sections substantially parallel to the flow direction of the air; and a top for connecting between the adjacent planar sections. A clearance is defined in the planar section of the fin. When a portion of the fin where the shortest distance from a center line between the adjacent planar sections becomes the maximum is set as a furthest section in a cross-section perpendicular to a stacking direction of the tubes, the clearance is defined in one furthest section or at least one of a plurality of furthest sections.
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公开(公告)号：US20200232726A1
公开(公告)日：2020-07-23
申请号：US16841260
申请日：2020-04-06
Applicant: DENSO CORPORATION
Inventor： Ryohei SUGIMURA , Masaaki KAWAKUBO , Daiki KATO , Tetsuya ITO , Hiroshi MIEDA
Abstract: A heat exchanger has an inflow port through which refrigerant flows, a cooling outflow port through which the refrigerant flows out during a cooling operation, and a heating outflow port through which the refrigerant flows out during a heating operation. A distance between the inflow port and the heating outflow port is shorter than a distance between the inflow port and the cooling outflow port.
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公开(公告)号：US20190128577A1
公开(公告)日：2019-05-02
申请号：US16091138
申请日：2017-04-03
Applicant: DENSO CORPORATION
Inventor： Ryohei SUGIMURA , Masaaki KAWAKUBO , Daiki KATO , Hiroshi MIEDA , Tetsuya ITO
Abstract: A heat exchanger includes a heat exchanging portion, a reservoir that performs gas-liquid separation on a gas-liquid two-phase refrigerant that flows out from the heat exchanging portion into a gas-phase refrigerant and a liquid-phase refrigerant and stores the liquid-phase refrigerant, and an inflow passage that allows the gas-liquid two-phase refrigerant flowing out from the heat exchanging portion to flow into the reservoir. The inflow passage is connected so as to be in communication with an inlet port of the reservoir which is disposed above a liquid surface of the liquid-phase refrigerant stored in the reservoir.
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公开(公告)号：US20190128575A1
公开(公告)日：2019-05-02
申请号：US16091944
申请日：2017-04-03
Applicant: DENSO CORPORATION
Inventor： Ryohei SUGIMURA , Hiroshi MIEDA , Masaaki KAWAKUBO , Daiki KATO , Tetsuya ITO
Abstract: A heat exchanger includes: a heat exchanging portion configured to exchange heat between a refrigerant flowing through therein and air; a liquid reservoir configured to separate a gas-liquid two-phase refrigerant flowing out of the heat exchanging portion into a gas-phase refrigerant and a liquid-phase refrigerant, the liquid reservoir storing the liquid-phase refrigerant; and a refrigerant adjustment portion configured to adjust a flow state of the refrigerant flowing into the refrigerant adjustment portion through a refrigerant passage of the refrigeration cycle, supply the refrigerant to the heat exchanging portion and adjust an outflow state and an outflow destination of the refrigerant flowing out of the heat exchanging portion or the liquid reservoir. At least a part of the refrigerant adjustment portion is inserted into the liquid reservoir.
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