Heat exchanger passage switching device

Patent metadata

Field	Value
Publication number	US-2023080711-A1
Application number	US-202117800809-A
Country	US
Kind code	A1
Filing date	Feb 24, 2021
Priority date	Feb 27, 2020
Publication date	Mar 16, 2023
Grant date	—

Abstract

A heat exchanger passage switching device according to an embodiment includes: a communication tube having an internal passage communicating with a heat exchange passage for performing heat exchange inside a heat exchanger, and one or more communication holes communicating with the internal passage; and at least one chamber having an insertion hole into which the communication tube is inserted to slidably support the communication tube inserted in the insertion hole. The communication tube is capable of switching a communication state between the one or more communication holes and the at least one chamber by a relative position of the communication tube to the at least one chamber in an axial direction.

First claim

1 - 10 . (canceled)

11 . A heat exchanger passage switching device, comprising:
a communication tube having an internal passage communicating with a heat exchange passage for performing heat exchange inside a heat exchanger, and one or more communication holes communicating with the internal passage; and at least one chamber having an insertion hole into which the communication tube is inserted to slidably support the communication tube inserted in the insertion hole, wherein the communication tube is capable of switching a communication state between the one or more communication holes and the at least one chamber by a relative position of the communication tube to the at least one chamber in an axial direction, wherein the at least one chamber has at least one fixed tube which is fixed to each chamber and inside which the insertion hole is formed, wherein the at least one fixed tube has a through hole formed corresponding to each chamber and penetrating a tube wall of the fixed tube to allow communication between the insertion hole and each chamber, wherein when the communication tube is moved to the relative position where any of the through hole overlaps the one or more communication holes, the communication tube allows communication between the internal passage and the chamber corresponding to the through hole that overlaps the one or more communication holes, and the communication tube blocks communication between the internal passage and the chamber corresponding to the through hole that does not overlap the one or more communication holes.

12 . A heat exchanger passage switching device, comprising:
a communication tube having an internal passage communicating with a heat exchange passage for performing heat exchange inside a heat exchanger, and one or more communication holes communicating with the internal passage; and at least one chamber having an insertion hole into which the communication tube is inserted to slidably support the communication tube inserted in the insertion hole, wherein the communication tube is capable of switching a communication state between the one or more communication holes and the at least one chamber by a relative position of the communication tube to the at least one chamber in an axial direction, wherein the heat exchanger passage switching device comprises at least two communication tubes, wherein the at least one chamber includes at least two chambers stacked along the axial direction, wherein the at least two chambers have at least two insertion holes into which the at least two communication tubes are inserted, respectively, and wherein each of the at least two communication tubes is configured to select which one of the at least two chambers to be communicated with the communication hole by the relative position to the chamber.

13 . A heat exchanger passage switching device, comprising:
a communication tube having an internal passage communicating with a heat exchange passage for performing heat exchange inside a heat exchanger, and one or more communication holes communicating with the internal passage; and at least one chamber having an insertion hole into which the communication tube is inserted to slidably support the communication tube inserted in the insertion hole, wherein the communication tube is capable of switching a communication state between the one or more communication holes and the at least one chamber by a relative position of the communication tube to the at least one chamber in an axial direction, wherein the heat exchanger passage switching device comprises at least four communication tubes, wherein the at least one chamber includes at least four chambers stacked along the axial direction, wherein the at least four chambers have at least four insertion holes into which the at least four communication tubes are inserted, respectively, and wherein each of the at least four communication tubes is configured to select which one of the at least four chambers to be communicated with the communication hole by the relative position to the chamber.

14 . A heat exchanger passage switching device, comprising:
a communication tube having an internal passage communicating with a heat exchange passage for performing heat exchange inside a heat exchanger, and one or more communication holes communicating with the internal passage; and at least one chamber having an insertion hole into which the communication tube is inserted to slidably support the communication tube inserted in the insertion hole, wherein the communication tube is capable of switching a communication state between the one or more communication holes and the at least one chamber by a relative position of the communication tube to the at least one chamber in an axial direction, wherein the heat exchanger passage switching device comprises a first switching unit and a second switching unit each of which includes at least two communication tubes and at least two chambers stacked along the axial direction, wherein the first switching unit and the second switching unit are arranged at positions that do not overlap each other when viewed from the axial direction, and wherein, in each of the first switching unit and the second switching unit,
the at least two chambers have at least two insertion holes into which the at least two communication tubes are inserted, respectively, and
each of the at least two communication tubes is configured to select which one of the at least two chambers to be communicated with the communication hole by the relative position to the chamber.

15 . A heat exchanger passage switching device, comprising:
a communication tube having an internal passage communicating with a heat exchange passage for performing heat exchange inside a heat exchanger, and one or more communication holes communicating with the internal passage; and at least one chamber having an insertion hole into which the communication tube is inserted to slidably support the communication tube inserted in the insertion hole, wherein the communication tube is capable of switching a communication state between the one or more communication holes and the at least one chamber by a relative position of the communication tube to the at least one chamber in an axial direction, wherein the heat exchanger passage switching device comprises at least eight communication tubes, wherein the at least one chamber includes at least six chambers stacked along the axial direction, wherein the at least six chambers have at least eight insertion holes into which the at least eight communication tubes are inserted, respectively, and wherein each of the at least eight communication tubes is configured to select which one of the at least six chambers to be communicated with the communication hole by the relative position to the chamber.

16 . A heat exchanger passage switching device, comprising:
a communication tube having an internal passage communicating with a heat exchange passage for performing heat exchange inside a heat exchanger, and one or more communication holes communicating with the internal passage; and at least one chamber having an insertion hole into which the communication tube is inserted to slidably support the communication tube inserted in the insertion hole, wherein the communication tube is capable of switching a communication state between the one or more communication holes and the at least one chamber by a relative position of the communication tube to the at least one chamber in an axial direction, wherein the heat exchanger passage switching device comprises a first switching unit and a second switching unit each of which includes at least four communication tubes and at least three chambers stacked along the axial direction, w

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Kaneko Yasuaki
• Hara Nobuhide
• Nakaharai Hiroyuki
• Uefuji Yoichi
• Hatanaka Masaya
• Tanimoto Koichi
• Ishida Toshiyuki
• Oda Takuo
• Eguchi Shunsaku

Classifications

• F28D9/00

  Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall {(F28F3/083, F28F3/086 take precedence)} · CPC title

• F28F27/02 Primary

  for controlling the distribution of heat-exchange media between different channels ({static flow control means in header boxes F28F9/026}; arrangements of guide plates or guide vanes F28F9/22, F28F25/12) · CPC title

• F28F3/08

  Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning · CPC title

• F25B41/26 Primary

  of fluid flow reversing valves · CPC title