EP0384316A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Embossed plate heat exchanger
Assignee: Dana Canada Corp
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Filing: 1990-02-16
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Granted: —
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Expires: 2010-02-16
Abstract
Abstract A plate and fin type heat exchanger (10) is disclosed for cooling automotive engine oil, transmission fluid and power steering fluid. The heat exchanger (10) is formed of a plurality of stacked plate pairs (14) with louvered fins (18) located therebetween. The plate pairs (14) are formed of two elongate identical plates (30) located face-to-face and having planar central portions, raised co-planar peripheral edge portions joined together, and co-planar end bosses with openings therein to form flow headers when the plate pairs (14) are stacked together. The planar central portions have a plurality of uniformly spaced-apart, non-overlapping blunt projections joined together along a common plane with the peripheral edge portions. The projections are symmetrical and provide uniform flow through the plate pairs (14).
Inventors
- 👤 Allen K. So
- 👤 Charles S. Argyle
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 16:18
CPC Classifications
F; F28; F28F; F28F3/00; F28F3/02; F28F3/04; F28F3/042; F28F3/044; F28D; F28D1/00; F28D1/02; F28D1/03; F28D1/0308; F28D1/0325; F28D1/0333; F28F3/025; F28D21/00; F28D2021/0019; F28D2021/008; F28D2021/0089; Y; Y10; Y10S; Y10S165/00; Y10S165/454; Y10S165/464; Y10S165/465; Y10S165/916
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
153 words
A plate and fin type heat exchanger comprising: a plurality of elongate plates each having a planar central portion, a raised co-planar peripheral edge portion located above the plane of the central portion, and opposed co-planar end bosses located below the plane of the central portion, said plates being arranged face-to-face in a plurality of stacked pairs, the bosses having openings formed therein to form respective headers at each end of the plates for flow of fluid through the plate pairs; the central portions having a plurality of uniformly spaced-apart projections extending to the plane of the peripheral edge portions, the projections and the peripheral edge portions of each plate pair being joined together, the projections being spaced-apart so that there is no overlap therebetween longitudinally or transversely of the plates; and corrugated fins located between each plate pair extending between the end bosses and in contact with the respective plate central portions.
Claim 2
Dependent Claim
153 words
A plate and fin type heat exchanger comprising: a plurality of elongate plates each having a planar central portion, a raised co-planar peripheral edge portion located above the plane of the central portion, and opposed co-planar end bosses located below the plane of the central portion, said plates being arranged face-to-face in a plurality of stacked pairs, the bosses having openings formed therein to form respective headers at each end of the plates for flow of fluid through the plate pairs; the central portions having a plurality of uniformly spaced-apart projections extending to the plane of the peripheral edge portions, the projections and the peripheral edge portions of each plate pair being joined together, the projections being spaced-apart so that there is no overlap therebetween longitudinally or transversely of the plates; and corrugated fins located between each plate pair extending between the end bosses and in contact with the respective plate central portions.
Claim 3
Dependent Claim
37 words
A plate and fin type heat exchanger as claimed in claim 1 wherein the projections in the central portions have generally vertical side walls and flat top surfaces, so that mating projections form symmetrical blunt-sided flow restrictions.
Claim 4
Dependent Claim
44 words
A plate and fin type heat exchanger as claimed in claim 1 and further comprising half projections formed partially in the central portions and partially in the peripheral edge portions, the half projections being spaced equidistant from the adjacent projections in the central portions.
Claim 5
Dependent Claim
39 words
A plate and fin type heat exchanger as claimed in claim 1, 2 or 3 wherein the projections are located in longitudinal rows, the longitudinal rows being spaced apart to provide longitudinal flow passages between the rows of projections.
Claim 6
Dependent Claim
22 words
A plate and fin type heat exchanger as claimed in claim 1,2 or 3 where the projections are circular in plan view.
Claim 7
Dependent Claim
37 words
A plate and fin type heat exchanger as claimed in claim 1, 2 or 3 wherein the projections are arranged in a diamond pattern, any three adjacent projections being located at the apexes of an equilateral triangle.
Claim 8
Dependent Claim
31 words
A plate and fin type heat exchanger as claimed in claim 1 wherein the corrugated fins are formed with transverse louvers disposed perpendicularly to the flow of fluid through the fins.
Claim 9
Dependent Claim
25 words
A plate and fin type heat exchanger as claimed in claim 7 wherein the louvers decrease in length toward the peripheral sides of the fins.
Claim 10
Dependent Claim
52 words
A plate and fin type heat exchanger as claimed in claim 1, 2 or 3 and further comprising mounting plates attached to the upper and lower plate pairs, the mounting plates acting as baffles to control the flow of fluid into and out of the headers at each end of the plates.
Claim 11
Dependent Claim
33 words
A plate and fin type of heat exchanger as claimed in claim 1, 2 or 3 wherein the number of projections is maximized without exceeding a predetermined pressure drop through the heat exchanger.
References Cited (Backward Citations)
No citation records indexed.
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