US 4,800,954 AGranted

Laminated heat exchanger

AssigneeDiesel Kiki Co., Ltd.

InventorsIchiro Noguchi, Yoshikiyo Nagasaka, Isamu Kurosawa

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Abstract

A laminated heat exchanger includes a plurality of parallel spaced tube elements with tanks at one end thereof, and fins disposed between adjacent tube elements. Each tube element has a pair of joint portions projecting from the other end thereof toward two adjacent tube elements and held in abutment with the joint portions of the two adjacent tube elements. The joint portion has a corrugated shape composed of alternate parallel grooves and ridges and hence is rigid enough to withstand external forces. The tube element includes a guide member disposed on a front end of the partition wall for directing a heat transferring medium toward the opposite corners of a guide channel. With the guide member, the heat transferring medium is distributed uniformly over the entire region of the guide channel.

Claims8

Dependent claims

A laminated heat exchanger comprising:

(a) a plurality of parallel spaced tube elements, each said tube element being composed of a pair of stamped plates and having two juxtaposed tanks at one end thereof and an internal guide channel extending contiguously from said tanks for the passage therethrough of a heat transferring medium;
(b) a plurality of corrugated fins each disposed between an adjacent pair of said plurality of tube elements;
(c) said tube elements and said fins being laminated into layers;
and
(d) each said stamped plate including a joint portion extending along an end edge thereof remote from said tanks and having alternate parallel ridges and grooves, said joint portion having intermediate connecting section means for interconnecting adjacent pairs of said grooves and ridges and for abutting an opposed intermediate connecting section means for engaging adjacent tube elements when said joint portion of one tube element abuts the joint portion of an adjacent tube element, and said joint portion having locking means on at least one of said grooves and ridges for holding said joint portion of one tube element in abutment with the joint portion of an adjacent tube element.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/130,298Filed 8 Dec 1987
Priority: JP 61-30229218 Dec 1986
Granted: 31 Jan 1989
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

F28F 3/04
Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations: the means being…
F28D 1/0341
The plates having integrated connecting members: with U-flow or serpentine-flow inside the conduits
F28F 3/044
In the form of local deformations of the element: the deformations being pontual, e.g. dimples
Y10S 165/466
Manifold space formed in end portions of plates: manifold spaces provided at one end only