HEAT EXCHANGER

• US 20170343302A1
• Filed: 11/26/2015
• Published: 11/30/2017
• Est. Priority Date: 12/17/2014
• Status: Active Application

• Current Assignee: Futaba Industrial Company Limited
• Original Assignee: Futaba Industrial Company Limited
• Inventors: Ishikawa, Hiromi, Takemoto, Naohiro, Okami, Hirohisa
• Application Number:
  US15/535,793
• Publication Number:
  US 20170343302A1
• Time in Patent Office: Days
• CPC Class Codes: F01N 2240/02 a heat exchanger
• CPC Class Codes: F01N 5/02 the devices using heat
• CPC Class Codes: F28D 2021/008 for vehicles for aircrafts F28D2021/0021
• CPC Class Codes: F28D 21/0003 the heat being recuperated from exhaust gases F28D21/0014 takes precedence
• CPC Class Codes: F28D 9/0012 the apparatus having an annular form
• CPC Class Codes: F28D 9/0043 the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
• CPC Class Codes: F28F 3/027 with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips
• CPC Class Codes: F28F 3/06 the means being attachable to the element
• CPC Class Codes: F28F 3/08 Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning

Abstract

A heat exchanger in one aspect of the present disclosure comprises a plurality of plates and a fin. The fin comprises at least one first portion and at least one second portion. The at least one first portion is a wall surface that comprises at least one first opening. The at least one second portion, which is paired with the first portion, is a wall surface different from the first portion. The second portion comprises a second opening paired with a corresponding one of the at least one first opening. The fin comprises at least one opening pair, which is a pair of the first opening and the second opening. The at least one opening pair has a non-overlapping positional relationship in which the paired first opening and second opening are at least partially non-overlapping along a flow direction of a second fluid.

Claims

1. A heat exchanger to exchange heat between a first fluid and a second fluid, the heat exchanger comprising:

a plurality of plates comprising a flow path through which the first fluid flows; and

a fin configured to couple mutually adjacent plates among the plurality of plates,

wherein the fin comprises;

at least one first portion that is a wall surface and comprises at least one first opening;

at least one second portion that is a wall surface paired with the first portion and is different from the first portion, the at least one second portion comprising a second opening paired with a corresponding one of the at least one first opening,

the paired first portion and second portion providing a wave-shaped section, and

the first portion and the second portion each being arranged in a direction orthogonal to a flow direction of the second fluid; and

at least one opening pair that is a pair of the first opening and the second opening,

the at least one opening pair having a non-overlapping positional relationship in which the paired first opening and second opening are at least partially non-overlapping along the flow direction of the second fluid.

2. The heat exchanger according to claim 1,

wherein each of the plurality of plates has a cylindrical shape,

wherein the plurality of plates are arranged along an axial direction, and

wherein the fin is arranged along a circumferential direction of the plates.

3. The heat exchanger according to claim 1, wherein the at least one opening pair is such that the paired first opening and second opening are entirely non-overlapping along the flow direction of the second fluid.

4. The heat exchanger according to claim 1, wherein the fin is such that each of the opening pair has the non-overlapping positional relationship.

5. The heat exchanger according to claim 2, wherein the at least one opening pair is such that the paired first opening and second opening are entirely non-overlapping along the flow direction of the second fluid.

6. The heat exchanger according to claim 2, wherein the fin is such that each of the opening pair has the non-overlapping positional relationship.

7. The heat exchanger according to claim 3, wherein the fin is such that each of the opening pair has the non-overlapping positional relationship.