US 11,982,501 B2
Flow path resistor and heat exchanger
Takuo Oda, Tokyo (JP); Tatsuo Ishiguro, Tokyo (JP); Nobuhide Hara, Tokyo (JP); Yoshiyuki Kondo, Tokyo (JP); Satoshi Hiraoka, Yokohama (JP); Taichi Nakamura, Yokohama (JP); Kenji Kirihara, Yokohama (JP); and Jiro Kasahara, Tokyo (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 17/298,850
Filed by Mitsubishi Power, Ltd., Kanagawa (JP)
PCT Filed Dec. 2, 2019, PCT No. PCT/JP2019/046969
§ 371(c)(1), (2) Date Jun. 1, 2021,
PCT Pub. No. WO2020/116378, PCT Pub. Date Jun. 11, 2020.
Claims priority of application No. 2018-226755 (JP), filed on Dec. 3, 2018.
Prior Publication US 2022/0034606 A1, Feb. 3, 2022
Int. Cl. F28F 13/12 (2006.01); F15D 1/06 (2006.01); F28D 7/06 (2006.01); F28F 1/40 (2006.01)
CPC F28F 13/12 (2013.01) [F15D 1/065 (2013.01); F28D 7/06 (2013.01); F28F 1/40 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A flow path resistor comprising:
an outer frame member configured to partition
a fluid introduction port formed at one end of the outer frame member, the fluid introduction port being configured to introduce fluid,
a fluid lead-out port formed at another end of the outer frame member, the fluid lead-out port being configured to draw out the fluid, and
a hollow portion configured to communicate the fluid introduction port and the lead-out port,
the outer frame member extending in one direction; and
a plurality of resistance-imparting portions disposed inward of an outer surface of the outer frame member, the plurality of resistance-imparting portions including a first contraction flow portion configured to contract flow of the fluid, and an enlarged diameter portion disposed in the hollow portion and being configured to communicate with the first contraction flow portion,
wherein the plurality of resistance-imparting portions are disposed adjacent to each other,
of the plurality of resistance-imparting portions adjacent to each other, the first contraction flow portion forming one of the plurality of resistance-imparting portions is in communication with the enlarged diameter portion forming another one of the plurality of resistance-imparting portions, and
a plurality the first contraction flow portions forming the plurality of resistance-imparting portions adjacent to each other are disposed at different positions in a direction in which the outer frame member extends,
wherein the plurality of resistance-imparting portions are disposed in the direction in which the outer frame member extends,
a plurality of dividing plates configured to divide the hollow portion in the direction in which the outer frame member extends are provided in the outer frame member,
of the plurality of dividing plates adjacent to each other, one of the plurality of dividing plates is formed with the first contraction flow portion forming the one of the plurality of resistance-imparting portions, and another one of the plurality of dividing plates is formed with the first contraction flow portion forming the another one of the plurality of resistance-imparting portions, and
the enlarged diameter portion is disposed between the plurality of dividing plates adjacent to each other, and
wherein at least one of the plurality of dividing plates adjacent to each other is provided with a rib configured to narrow a flow path of the fluid flowing through the enlarged diameter portion.