EP0106479A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Unipart Group Ltd
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Filing: 1983-09-01
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Granted: —
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Expires: 2003-09-01
Abstract
Abstract A heat exchanger such as an oil cooler consists of flat tubes 12 spaced apart in an array. A connector 19 feeds a header and another header is provided at the other end of the tubes. The tubes are closed at the ends by an end plate 13 which has channel-shaped depressions 13 over the region where it contacts the tubes, and arms 13a, 13b. The depressions 13 and arms 13a, 13b hold the oil cooler tubes together after assembly so that the oil cooler can be removed from the jig in which it was assembled and passed through a brazing apparatus without any jigging means.
Inventors
- 👤 David Raymond Howells
- 👤 William Robert Taylor
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 13:17
CPC Classifications
F; F28; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/053; F28D1/0535; F28D1/05358; F28F; F28F1/00; F28F1/02; F28F9/00; F28F9/02; F28F9/0219; F28F9/0221; F28F2220/00; F28F2240/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
42 words
1 A heat exchanger comprising: a stack of tubes maintained in co-extensive spaced array; two headers commimicating with the tubes; and an end plate for each end of the stack which close the tubes and locate the tubes in the spaced array.
Claim 2
Dependent Claim
42 words
1 A heat exchanger comprising: a stack of tubes maintained in co-extensive spaced array; two headers commimicating with the tubes; and an end plate for each end of the stack which close the tubes and locate the tubes in the spaced array.
Claim 3
Dependent Claim
16 words
2 A heat exchanger as claimed in claim 1, wherein the tubes are of flattened section.
Claim 4
Dependent Claim
39 words
3 A heat exchanger as claimed in claim 2, wherein the end plate has channel-shaped depressions over the region where it engages the tubes, the walls of the depressions contacting the end portions of the outside of the tubes.
Claim 5
Dependent Claim
19 words
4 A heat exchanger as claimed in claim 3, wherein the end plate is pressed to form the depressions.
Claim 6
Dependent Claim
37 words
5 A heat excahnger as claimed in claim 3 or claim 4, wherein the end plate has arms which extend at right angles to the plate and which engage the top and bottom surfaces of the stack.
Claim 7
Dependent Claim
28 words
6 A heat exchanger as claimed in any of claims 1 to 5, wherein spacer members are located in the stack at a point intermediate the tube ends.
Claim 8
Dependent Claim
29 words
7 A heat exchanger as claimed in any one of claims 1 to 6, wherein the headers are defined by apertures in the tubes and washers between the tubes.
Claim 9
Dependent Claim
25 words
8 A heat exchanger as claimed in claim 7, wherein an inner rim of the washers is raised to engage the apertures in the tubes.
Claim 10
Dependent Claim
22 words
9 A heat exchanger as claimed in any one of claims 1 to 8, wherein the end plate is secured by brazing.
Claim 11
Dependent Claim
14 words
10 A heat exchanger substantially as hereinbefore described with reference to the accompanying drawings.
Claim 12
Dependent Claim
14 words
10 A heat exchanger substantially as hereinbefore described with reference to the accompanying drawings.
Claim 13
Dependent Claim
46 words
11 A method of fabricating a heat exchanger as claimed in any one of claims 1 to 10, comrising the steps of assebling the stack, and end plates in a jig, removing it from the jig, and undertaking a single brazing operation to unite the assembly.
References Cited (Backward Citations)
US1831533A
Cited
US2816740A
Cited
GB859837A
Cited
US3430694A
Cited
US4011905A
Cited
FR2428809A1
Cited
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