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US 2024/0255239 A1Published application
Attachment structure for heat exchanger
AssigneeT.RAD Co., Ltd.
InventorsKoji UESATO, Shuhei MATSUSAKA
Life of this patent
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Abstract
In an attachment structure in which a flange 2 of a heat exchanger and a casing 3 form metal touch 12, a protruding step surface is formed at the hole edge portion of the flow path hole of the flange of the heat exchanger, which projects toward the casing side from the surface of the metal touch. Thereby, the flange is firmly press-contacted with the casing, and the fluid is prevented from leaking out of the hole edge of the flow path hole.
Claims4
An attachment structure for a heat exchanger in which a flange is provided on one end of a heat exchanger and the flange is connected with a surface of a casing, wherein:
- a surface of the flange has a belt region constituted of an annular plane, and an annular groove in which an O-ring for seal is stored is formed in the belt region;
- at least one flow path hole is formed inside the belt region while a case side flow path hole is provided for the casing facing the flow path hole;
- each of portions on a surface of the casing in contact with the flange is formed flat on one face, and the flange and the casing form metal touch in the belt region;
- and
- a hole edge portion of the flow path hole of the flange is formed in a protruding step surface projecting toward the casing side from a surface of the metal touch, wherein:
- the metal touch means that surfaces of metal contact with each other.
3 more elements
Dependencies are inferred from the claim text.