US3734177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Modine Manufacturing Co
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Filing: 1972-02-04
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Granted: 1973-05-22
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Expires: 1992-02-04
Abstract
Abstract A heat exchanger for exchange between first and second fluids such as motor oil lubricant and liquid coolant in which a baffle sheet of serpentine cross section separates these fluids for heat transfer through the sheet between the fluids, a pair of end plates on opposite ends of the exchanger each having spaced fingers with edge areas joined to the baffle sheet sealing the end spaces between the sides of the folds forming the serpentine section with the end plates being parts of a first enclosing casing for the first fluid and with all seams joining the baffle sheet, first enclosing casing and the end plates being located at the exterior of the heat exchanger for ready inspection of the seams which are preferably formed by brazing and ready accessibility to the seams to make any necessary leakage repairs.
Inventors
- 👤 L Bellovary
- 👤 A Popma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:20
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/001; F28D; F28D9/00; F28D9/0025; F28F13/00; F28F13/06; F28F13/12; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/399
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
220 words
A heat exchanger for exchange of heat between first and second fluids, comprising: a baffle sheet of serpentine section separating said first and second fluids for heat transfer through the sheet, the sheet having adjacent spaced folds each with spaced apart sides thereby providing side-by-side flow paths for said first and second fluids on opposite sides of said sheet; a pair of end plates on opposite ends of said exchanger each having substantially parallel spaced fingers with edge areas of said fingers joined to said baffle sheet at areas thereof along seams sealing the end spaces between said spaced sides of the folds, said end plates being parts of a first enclosing casing for said first fluid, the baffle sheet areas and first casing fingers areas joined by said seams being located on the exterior of said heat exchanger and at an external side of the assembly of baffle sheet, first casing and end plate fingers for ready inspection of said seams and accessibility for any necessary leakage repairs; a second enclosing casing for said second fluid enclosing said folds of said baffle and spaced therefrom to provide flow paths for said second fluid; and a pair of spaced access conduits to said first enclosing casing for flow of the first fluid through said first casing and within said folds.
Claim 2
Dependent Claim
220 words
A heat exchanger for exchange of heat between first and second fluids, comprising: a baffle sheet of serpentine section separating said first and second fluids for heat transfer through the sheet, the sheet having adjacent spaced folds each with spaced apart sides thereby providing side-by-side flow paths for said first and second fluids on opposite sides of said sheet; a pair of end plates on opposite ends of said exchanger each having substantially parallel spaced fingers with edge areas of said fingers joined to said baffle sheet at areas thereof along seams sealing the end spaces between said spaced sides of the folds, said end plates being parts of a first enclosing casing for said first fluid, the baffle sheet areas and first casing fingers areas joined by said seams being located on the exterior of said heat exchanger and at an external side of the assembly of baffle sheet, first casing and end plate fingers for ready inspection of said seams and accessibility for any necessary leakage repairs; a second enclosing casing for said second fluid enclosing said folds of said baffle and spaced therefrom to provide flow paths for said second fluid; and a pair of spaced access conduits to said first enclosing casing for flow of the first fluid through said first casing and within said folds.
Claim 3
Dependent Claim
31 words
The heat exchanger of claim 1 wherein there are provided turbulators comprising turbulence producing fins within each of said folds for creating turbulence in the first fluid flowing within said folds.
Claim 4
Dependent Claim
34 words
The heat exchanger of claim 1 wherein said first enclosing casing for said first fluid comprises a confining member for said second fluid to which said baffle sheet is attached at the sides thereof.
Claim 5
Dependent Claim
74 words
The heat exchanger of claim 3 wherein said confining member comprises a mounting plate to which said baffle sheet is attached, said plate being attachable to a second enclosing casing for said second fluid to extend across an opening therein with said baffle sheet extending into the second casing, the mounting plate and baffle sheet thereby being attachable to and removable from the second casing as a first fluid flow and heat exchange unit.
Claim 6
Dependent Claim
46 words
The heat exchanger of claim 4 wherein said mounting plate is provided with spaced fluid flow conduits communicating with the opposite ends of said baffle sheet folds for flow of said first fluid into the folds, in parallel flow within the folds and for flow therefrom.
Claim 7
Dependent Claim
90 words
The heat exchanger of claim 1 wherein said pair of end plates on the first enclosing casing cooperate with a similar pair of end plates on a second enclosing casing for said second fluid, the second end plates having similar spaced fingers extending between adjacent folds and sealed thereto along seams that are also located on the exterior of said heat exhanger and externally of the assembly of baffle sheet, second casing and second end plate fingers for ready inspection of the seams and accessibility for any necessary leakage repairs.
Claim 8
Dependent Claim
32 words
The heat exchanger of claim 6 wherein said fingers of said first and second end plates of said first and second casing are interlaced with said baffle sheet between the interlaced fingers.
Claim 9
Dependent Claim
23 words
The heat exchanger of claim 7 wherein corresponding first and second end plates at the ends of said heat exchanger are substantially coplanar.
Claim 10
Dependent Claim
49 words
The heat exchanger of claim 6 wherein said second casing is provided with longitudinal parallel edges each of which is joined to a corresponding edge of said first casing and to a corresponding edge of said baffle sheet in a single multiple seam on the exterior of said exchanger.
Claim 11
Dependent Claim
19 words
The heat exchanger of claim 9 wherein said joined edges project outwardly from said exchanger to provide ready accessibility.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |