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公开(公告)号：US11519673B2
公开(公告)日：2022-12-06
申请号：US16971697
申请日：2019-02-28
Applicant: Mitsubishi Electric Corporation
Inventor： Susumu Yoshimura , Faming Sun , Yoshitaka Eijima , Sho Shiraishi , Masahiro Yokoi , Ryosuke Abe , Kazutaka Suzuki
Abstract: A plate heat exchanger includes heat transfer plates each of which has openings at four corners thereof, and which are stacked together. The heat transfer plates are partially brazed together such that a first flow passage through which first fluid flows and a second flow passage through which second fluid flows are alternately arranged, with an associated heat transfer plate interposed between the first and second flow passages. The openings at each of the four corners communicate with each other, thereby forming a first header and a second header, the first header allowing the first fluid to flow into and flow out of the first flow passage, the second header allowing the second fluid to flow into and flow out of the second flow passage.
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公开(公告)号：US12044483B2
公开(公告)日：2024-07-23
申请号：US17440391
申请日：2019-06-03
Applicant: Mitsubishi Electric Corporation
Inventor： Kazunari Sawada , Ryosuke Abe
CPC classification number: F28D9/0031 , F28F3/06 , F28F3/08
Abstract: A plate heat exchanger includes a plurality of first heat transfer plates, a plurality of first inner fins, a plurality of second heat transfer plates, and a plurality of second inner fins. A space is formed between each of the plurality of first heat transfer plates and a corresponding one of the plurality of second heat transfer plates. The plate heat exchanger includes, in the space, a plurality of heat transfer components connecting each of the plurality of first heat transfer plates and a corresponding one of the plurality of second heat transfer plates, the plurality of heat transfer components being interspersed between each of the plurality of first heat transfer plates and a corresponding one of the plurality of second heat transfer plates. A recess-and-projection pitch section in each of the plurality of first inner fins includes first pitch sections and one or more of second pitch sections, a width of each of the second pitch sections being wider than a width of each of the first pitch sections. The plurality of heat transfer components are disposed in regions of the first pitch sections when the plurality of heat transfer components are projected in a direction in which the plurality of first heat transfer plates and the plurality of second heat transfer plates are stacked.
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公开(公告)号：US11719495B2
公开(公告)日：2023-08-08
申请号：US16979047
申请日：2019-02-28
Applicant: Mitsubishi Electric Corporation
Inventor： Faming Sun , Susumu Yoshimura , Yoshitaka Eijima , Sho Shiraishi , Ryosuke Abe , Masahiro Yokoi , Kazutaka Suzuki
Abstract: A plate heat exchanger includes heat transfer plates having openings at four corners thereof, having outer wall portions at their edges, and stacked together. The heat transfer plates are partially brazed together such that a first flow passage for first fluid and a second flow passage for second fluid are alternately arranged, with a heat transfer plate interposed between these flow passages, the openings communicating with each other, forming a first header allowing the first fluid to flow into and out of the first flow passage and a second header allowing the second fluid to flow into and out of the second flow passage. One heat transfer plate located between the first or second flow passage is formed by stacking two metal plates. Space between the metal plates includes a fine flow passage located within a heat exchange region, and a peripheral leakage passage outward of the fine flow passage.
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公开(公告)号：US11662152B2
公开(公告)日：2023-05-30
申请号：US16977371
申请日：2019-02-28
Applicant: Mitsubishi Electric Corporation
Inventor： Faming Sun , Susumu Yoshimura , Yoshitaka Eijima , Sho Shiraishi , Ryosuke Abe , Masahiro Yokoi , Kazutaka Suzuki
CPC classification number: F28D9/0093 , F25B30/02 , F25B39/04 , F28D9/005 , F28F1/003 , F28F3/08 , F28F3/10 , F28F19/04 , F25B2339/047 , F28F2265/16
Abstract: A plate heat exchanger includes a plurality of heat transfer plates stacked together and each having openings at four corners thereof. The heat transfer plates are partially brazed together such that a first flow passage through which first fluid flows and a second flow passage through which second fluid flows are alternately arranged with one of the heat transfer plates disposed therebetween, openings at the four corners being connected forming first headers through which the first fluid enters and is discharged and second headers through which the second fluid enters and is discharged. At least one of two heat transfer plates between which the first flow passage or the second flow passage is disposed is formed by a pair of metal plates stacked together. The metal plate adjacent to the second flow passage is thinner than the metal plate adjacent to the first flow passage.
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