EP0097431A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Improvements relating to heat exchangers
Assignee: SU BUTEC Ltd
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Filing: 1983-05-24
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Granted: —
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Expires: 2003-05-24
Abstract
Abstract A motor vehicle radiator has a tubular oil cooler 12 located in its header tank defined by a plastics header tank shell 11 and a tube plate 20. Passage of oil to the oil cooler is effected through connectors 14 which include an elastomeric sealing bush 16 which is tapered internally in its undeformed state such that upon insertion of a connecting piece 15 the bush is expanded radially outwardly into sealing contact with the header tank shell.
Inventors
- 👤 Graham Gerald Lardner
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 01:09
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/0234; F28F9/0246; F28F9/0256; Y; Y10; Y10S; Y10S165/00; Y10S165/916
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
96 words
1 A heat exchanger having a header tank shell incorporating a connector passing through an aperture in the wall of said shell to permit fluid to be passed through said aperture, wherein a seal is effected between said connector and said shell wall by means of an elastomeric bush including a portion which is located around said connector where it passes through said shell wall, said bush being tapered internally in its undeformed state such that insertion of said connector into said bush causes said bush to be expanded into sealing contact with said shall wall.
Claim 2
Dependent Claim
96 words
1 A heat exchanger having a header tank shell incorporating a connector passing through an aperture in the wall of said shell to permit fluid to be passed through said aperture, wherein a seal is effected between said connector and said shell wall by means of an elastomeric bush including a portion which is located around said connector where it passes through said shell wall, said bush being tapered internally in its undeformed state such that insertion of said connector into said bush causes said bush to be expanded into sealing contact with said shall wall.
Claim 3
Dependent Claim
23 words
2 A heat exchanger as claimed in claim 1, wherein said bush is substantially cylindrical externally over its length in its undeformed state.
Claim 4
Dependent Claim
24 words
3 A heat exchanger as claimed in claim 1 or 2, wherein said aperture is circular, and said bush and said connector are annular.
Claim 5
Dependent Claim
25 words
4 A heat exchanger as claimed in claim 1, 2 or 3, wherein said bush has a flange at or adjacent its internally larger end.
Claim 6
Dependent Claim
28 words
5 A heat exchanger as claimed in any one of claims 1 to 4, wherein said connector is externally substantially cylindrical over that portion which contacts the bush.
Claim 7
Dependent Claim
26 words
6 A heat exchanger as claimed in any preceding claim, wherein said connector is attached to a tubular heat exchanger located in the header tank shell.
Claim 8
Dependent Claim
39 words
7 A heat exchanger as claimed in claim 6, wherein said header tank shell is of a plastics material, and said tubular heat exchanger is located in the header tank shell by a web moulded in said tank shell.
Claim 9
Dependent Claim
33 words
8 A heat exchanger as claimed in claim 7, wherein said web constrains said tubular heat exchanger against movement in a direction toward said aperture and in a direction perpendicular t6 said direction.
Claim 10
Dependent Claim
45 words
9 A heat exchanger as claimed in claim 6, 7 or 8, including a retaining member insertable into said header tank shell after said tubular heat exchanger, and retained after assembly of the heat exchanger by a tube plate connected to the header tank shell.
Claim 11
Dependent Claim
36 words
10 A heat exchanger as claimed in claim 9, wherein said retaining member is arranged to constrain said tubular heat exchanger against movement away from said aperture and in a direction opposite to said perpendicular direction.
Claim 12
Dependent Claim
30 words
11 A heat exchanger as claimed in claim 9 or 10, wherein said retaining member is arranged to act as a baffle for fluid flow in the header tank shell.
Claim 13
Dependent Claim
14 words
12 A heat exchanger substantially as hereinbefore described with reference to the accompanying drawings.
Claim 14
Dependent Claim
14 words
12 A heat exchanger substantially as hereinbefore described with reference to the accompanying drawings.
References Cited (Backward Citations)
No citation records indexed.
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