Patent US4815534A successfully refreshed from Google Patents.
US4815534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plate type heat exchanger
Assignee: ITT STANDARD
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Filing: 1987-09-21
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Granted: 1989-03-28
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Expires: 2007-09-21
Abstract
Abstract A plate heat exchanger in which the various plates from which it is fabricated are brazed together in a stacked assembly comprised of flow plates and heat transfer plates arranged in alternating relationship. The heat exchanger has inlets and outlets for two fluids with passage networks extending between the inlets and outlets and turbulator members are located in each flow cavity formed between adjacent surfaces of the heat transfer and flow plates. The turbulator members are interchangeably positionable between each pair of adjacent flow and heat transfer plates and are selectable from a plurality of differently configured turbulator members. Plate sizes, shapes and openings therein are standardized to provide a basic heat exchanger system which can be fabricated in easily modified embodiments to meet various and diverse heat exchange requirements.
Inventors
- 👤 Raymond F. Fuerschbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:49
CPC Classifications
F; F28; F28F; F28F13/00; F28F13/06; F28F13/12; F28D; F28D9/00; F28D9/0062; F28D9/0075; F28F2280/00; F28F2280/04
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
141 words
A stacked plate heat exchanger comprising: a plurality of flow plates, each of said flow plates including a flow course opening extending therethrough; a plurality of heat transfer plates arranged in alternating stacked relationship with said flow plates; a turbulator member connected to at least one of said heat transfer plates and disposed within one of said flow course openings; said flow plates, heat transfer plates, and turbulator member each being individual components arranged in said stacked relationship, said heat transfer plates being connected to each adjoining flow plate; first means for introducing a first fluid into a flow course opening of one of said flow plates; second means for introducing a second fluid into a flow course opening of another of said flow plates; and fluid outlet means for allowing fluid to exit from each of said flow course openings.
Claim 2
Dependent Claim
141 words
A stacked plate heat exchanger comprising: a plurality of flow plates, each of said flow plates including a flow course opening extending therethrough; a plurality of heat transfer plates arranged in alternating stacked relationship with said flow plates; a turbulator member connected to at least one of said heat transfer plates and disposed within one of said flow course openings; said flow plates, heat transfer plates, and turbulator member each being individual components arranged in said stacked relationship, said heat transfer plates being connected to each adjoining flow plate; first means for introducing a first fluid into a flow course opening of one of said flow plates; second means for introducing a second fluid into a flow course opening of another of said flow plates; and fluid outlet means for allowing fluid to exit from each of said flow course openings.
Claim 3
Dependent Claim
24 words
The stacked plate heat exchanger set forth in claim 1 further comprising top and bottom plates connected, respectively, to two of said flow plates.
Claim 4
Dependent Claim
61 words
The stacked plate heat exchanger set forth in claim 2 including first and second fluid inlets and outlets located in said top plate, said first fluid inlet being in fluid communication with the flow course opening of one of said flow plates, said second fluid inlet being in fluid communication with the flow course opening of another of said flow plates.
Claim 5
Dependent Claim
33 words
The stacked plate heat exchanger set forth in claim 3 further comprising connector fittings connected to said top plate and communication each with one of said first and second fluid inlets and outlets.
Claim 6
Dependent Claim
21 words
The stacked plate heat exchanger set forth in claim 2 in which the interconnected stacked plates and turbulators are brazed together.
Claim 7
Dependent Claim
43 words
The stacked plate heat exchanger set forth in claim 5 in which the stacked plates and turbulator member are each interconnected with one another by a layer of a braze alloy material adhered to the adjoining faces of each and the other plate.
Claim 8
Dependent Claim
23 words
The stacked plate heat exchanger set forth in claim 2 in which each of the stacked plates is substantially coextensive with the others.
Claim 9
Dependent Claim
42 words
The stacked plate heat exchanger set forth in claim 7 in which the flow, top and bottom plates are substantially uniformly of the same thickness, at least one heat transfer plate being of lesser thickness than said flow, top and bottom plates.
Claim 10
Dependent Claim
20 words
The stacked plate heat exchanger set forth in claim 7 wherein each of said plates is of rectangular flat profile.
Claim 11
Dependent Claim
23 words
The stacked plate heat exchanger set forth in claim 1 in which the flow plates have elongated laterally widened flow course openings therein.
Claim 12
Dependent Claim
33 words
The stacked plate heat exchanger set forth in claim 10 in which the flow course openings of the flow plates have extensions communicating with one of said first and second fluid introduction means.
Claim 13
Dependent Claim
48 words
The stacked plate heat exchanger set forth in claim 11 in which the flow plates are of a single configuration whereby alternately arranged ones thereof are positioned in the assembly in reversed orientation to alternately communicate the flow course openings to the first and second fluid introduction means.
Claim 14
Dependent Claim
30 words
The stacked plate heat exchanger set forth in claim 1 including a turbulator member within each of said flow course openings for enhancing fluid contact with the heat transfer plates.
Claim 15
Dependent Claim
26 words
The stacked plate heat exchanger set forth in claim 13 in which the turbulator members positioned in the flow course openings are of the same configuration.
Claim 16
Dependent Claim
26 words
The stacked plate heat exchanger set forth in claim 13 in which the turbulator members positioned in the flow course openings are of the same configuration.
Claim 17
Dependent Claim
25 words
The stacked plate heat exchanger set forth in claim 13 in which the turbulator members each comprise a grid of spaced peaks intervened by valleys.
Claim 18
Dependent Claim
20 words
The stacked plate heat exchanger set forth in claim 16 in which the turbulator peaks are arranged in parallel rows.
Claim 19
Dependent Claim
30 words
The stacked plate heat exchanger set forth in claim 17 in which the parallel rows of peaks are arranged in the direction of fluid flow in the flow course opening.
Claim 20
Dependent Claim
50 words
The stacked plate heat exchanger set forth in claim 17 in which the parallel rows of peaks are arranged crosswise to the direction of fluid flow in the flow course opening, the peaks having openings therein for communicating fluid flow therethrough from one to another of the valleys adjacent therewith.
Claim 21
Dependent Claim
34 words
The stacked plate heat exchanger set forth in claim 19 in which each peak has opposed sides containing openings, the openings at one side being offset positioned relative to those at the other side.
Claim 22
Dependent Claim
22 words
The stacked plate heat exchanger set forth in claim 18 in which the peaks are in the form of an inverted channel.
Claim 23
Dependent Claim
51 words
The stacked plate heat exchanger set forth in claim 18 in which the flow plates have readily visually discernible telltale means denotive of orientation placement of each relative to an alternate flow plate to effect the alternating communication of the flow course openings to the first and second fluid introduction means.
Claim 24
Dependent Claim
21 words
The stacked plate heat exchanger set forth in claim 22 in which the telltale means comprises margin notches in the plates.
Claim 25
Dependent Claim
31 words
The stacked plate heat exchanger set forth in claim 17 in which the turbulator peaks have openings therein establishing a communication path between the valleys at each side of a peak.
Claim 26
Dependent Claim
44 words
The stacked plate heat exchanger set forth in claim 1 in which at least one of said heat transfer plates is an elongated, generally rectangular-shaped, flat plate having two opposing pairs of openings therein, said flow plates also being elongated, generally rectangular-shaped, flat plates.
Claim 27
Dependent Claim
88 words
The stacked plate heat exchanger set forth in claim 25 in which at least one of said flow plates has an elongated laterally widened flow course opening therein and first and second openings therein, said elongated laterally widened flow course opening being in fluid communication with two of said openings within said at least one of said heat transfer plates and said first and second openings being in fluid communication, respectively, with the other two of said openings within said at least one of said heat transfer plates.
Claim 28
Dependent Claim
30 words
The stacked plate heat exchanger set forth in claim 26 wherein said flow plates each include a margin notch for providing visual means of orientation placement of said flow plates.
Claim 29
Independent Claim
98 words
A method of fabricating a plate heat exchanger comprising: providing flow plates having flow course openings therein; providing heat transfer plates having fluid passage openings therein; alternating the flow plates in a stacked relationship with the heat transfer plates to form a plurality of flow cavities defined by the surfaces of said heat transfer plates adjoining said flow plates and the walls of said flow plates defining said flow course openings; positioning turbulator members in each of said flow cavities; and sealingly interconnecting the stacked plates to each other and said turbulator members to said heat transfer plates.
Claim 30
Independent Claim
98 words
A method of fabricating a plate heat exchanger comprising: providing flow plates having flow course openings therein; providing heat transfer plates having fluid passage openings therein; alternating the flow plates in a stacked relationship with the heat transfer plates to form a plurality of flow cavities defined by the surfaces of said heat transfer plates adjoining said flow plates and the walls of said flow plates defining said flow course openings; positioning turbulator members in each of said flow cavities; and sealingly interconnecting the stacked plates to each other and said turbulator members to said heat transfer plates.
Claim 31
Dependent Claim
27 words
The method of claim 28 including the step of alternating the orientation of said flow plates, each of said flow plates having identically configured flow course openings.
Claim 32
Dependent Claim
18 words
The method of claim 28 wherein the turbulator members positioned in alternate flow cavities have the same configuration.
Claim 33
Dependent Claim
17 words
The method of claim 28 wherein the turbulator members positioned in alternate flow cavities have different configuration.
Claim 34
Dependent Claim
25 words
The method of claim 28 wherein the flow and heat transfer plates are provided as flat, generally rectangular components and are alternated in superposed relationship.
Claim 35
Dependent Claim
28 words
The method of claim 29 wherein each of said flow plates includes at least one marginal notch therein for indicating the orientations of the flow course openings therein.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-27 | 1992-09-26 | 1993-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-27 | 1996-09-26 | 1997-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-27 | 2000-09-26 | 2001-03-28 | $7700.00 | Window Closed / Lapsed |