Patent US5392849A successfully refreshed from Google Patents.
US5392849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Layer-built heat exchanger
Assignee: Panasonic Holdings Corp
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Filing: 1994-02-23
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Granted: 1995-02-28
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Expires: 2014-02-23
Abstract
Abstract A layer-built heat exchanger has channels formed by dividers in a first-side plate 32 and a second-side plate 33. A seal plate 3 is interposed between the first- and second-side plates. The first-side plate 32 and second-side plate 33 are positioned relative to each other such that dividers 35 of the second-side plate 33 are in line with channels 36 of the first-side plate 32, and dividers 34 of the first-side plate 32 are in line with the channels 37 of the second-side plate 33, thus preventing deformation of the seal plate 3 due to a high differential pressure between the coolants flowing through the channels of the first- and second-side plates. The corners of the first-side plate 32, second-side plate 33, and seal plate 3 are also shaped differently so that omission of one of the component plates can be easily confirmed.
Inventors
- 👤 Tsuyoshi Matsunaga
- 👤 Kenji Fujino
- 👤 Takashi Sugahara
- 👤 Hiroaki Kan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:51
CPC Classifications
F; F28; F28D; F28D9/00; F28D9/0062; F28D9/0075; F28F; F28F2250/00; F28F2250/10; F28F2250/102; F28F2280/00; F28F2280/04
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
535 words
An arrangement in a layer-built heat exchanger, comprising: a first plurality of plates each comprising a first flat rectangular panel having a plurality of first channels therein defined and separated by a plurality of first dividers for the flow of a first heat exchange fluid through said first channels, a pair of first holes through said first flat rectangular panel for the flow of the first heat exchange fluid located at opposite ends of said first channels, and a pair of second holes through said first flat rectangular panel for the flow a second heat exchange fluid; a plurality of second plates each comprising a second flat rectangular panel having a plurality of second channels therein defined and separated by a plurality of second dividers for the flow of a second heat exchange fluid through said second channels, a pair of first holes through said second flat rectangular panel aligned with said first holes of said first plates for the flow of the first heat exchange fluid therethrough, and a pair of second holes through said second flat rectangular panel aligned with said second holes of said first plates for the flow of the second heat exchange fluid therethrough, said second holes of said second plates being located at opposite ends of said second channels, said second holes of said first plates being larger than said second holes of said second plates, and said first holes of said second plates being larger than said first holes of said first plates; and a plurality of seal plates disposed between said first plates and said second plates, said seal plates having a pair of first holes therethrough aligned with said first holes of said first and second plates for the flow of the first heat exchange fluid, and a pair of second holes therethrough aligned with said second holes of said first and second plates, said first holes and said second holes of said seal plates having substantially the same configuration as said first holes of said second plates and said second holes of said first plates, respectively, wherein said first plates and said second plates alternate with said seal plates disposed between said first and second plates so as to isolate said first and second plates from each other, wherein said first holes of said seal plates and said first holes of said second plates are located over said first holes of said first plates so as to define first buffer chambers over said first holes of said first plates, and said second holes of said first plates and said second holes of said seal plates are located over said second holes of said second plates to define second buffer chambers over said second holes of said second plates; wherein said ends of said first channels and said ends of said second channels of said first and second plates substantially define a V-shape about said first and second holes, respectively intruding into said first and second buffer chambers, and are located such that the length of said first and second channels in said first and second buffer chambers increases with an increase in the distance of said channels from the center of their respective said hole.
Claim 2
Dependent Claim
535 words
An arrangement in a layer-built heat exchanger, comprising: a first plurality of plates each comprising a first flat rectangular panel having a plurality of first channels therein defined and separated by a plurality of first dividers for the flow of a first heat exchange fluid through said first channels, a pair of first holes through said first flat rectangular panel for the flow of the first heat exchange fluid located at opposite ends of said first channels, and a pair of second holes through said first flat rectangular panel for the flow a second heat exchange fluid; a plurality of second plates each comprising a second flat rectangular panel having a plurality of second channels therein defined and separated by a plurality of second dividers for the flow of a second heat exchange fluid through said second channels, a pair of first holes through said second flat rectangular panel aligned with said first holes of said first plates for the flow of the first heat exchange fluid therethrough, and a pair of second holes through said second flat rectangular panel aligned with said second holes of said first plates for the flow of the second heat exchange fluid therethrough, said second holes of said second plates being located at opposite ends of said second channels, said second holes of said first plates being larger than said second holes of said second plates, and said first holes of said second plates being larger than said first holes of said first plates; and a plurality of seal plates disposed between said first plates and said second plates, said seal plates having a pair of first holes therethrough aligned with said first holes of said first and second plates for the flow of the first heat exchange fluid, and a pair of second holes therethrough aligned with said second holes of said first and second plates, said first holes and said second holes of said seal plates having substantially the same configuration as said first holes of said second plates and said second holes of said first plates, respectively, wherein said first plates and said second plates alternate with said seal plates disposed between said first and second plates so as to isolate said first and second plates from each other, wherein said first holes of said seal plates and said first holes of said second plates are located over said first holes of said first plates so as to define first buffer chambers over said first holes of said first plates, and said second holes of said first plates and said second holes of said seal plates are located over said second holes of said second plates to define second buffer chambers over said second holes of said second plates; wherein said ends of said first channels and said ends of said second channels of said first and second plates substantially define a V-shape about said first and second holes, respectively intruding into said first and second buffer chambers, and are located such that the length of said first and second channels in said first and second buffer chambers increases with an increase in the distance of said channels from the center of their respective said hole.
Claim 3
Dependent Claim
87 words
The arrangement of claim 1, wherein at each said end of said first and second channels, said channels overlap, in a direction perpendicular to said flat rectangular panels, the respective said first and second holes of each said seal plate aligned with the respective said hole of each said end of said channels, said channels increasing in the amount of overlap with the respective said hole of said seal plate with the increase in the distance of said channels from the center of their respective said hole.
Claim 4
Dependent Claim
66 words
The arrangement of claim 2, wherein said first holes of said first plates and said second holes of said second plates are each circular, and said first and second holes of said seal plates each comprise a rectangular portion overlapped by a said end of said channels and a semi-circular portion aligned with one of said first and second holes of said first and second plates.
Claim 5
Dependent Claim
51 words
The arrangement of claim 1, wherein, in a direction perpendicular to the plane of said first and second flat rectangular panels, at least a portion of said second dividers are positioned opposite to said first channels and at least a portion of said first dividers are positioned opposite said second channels.
Claim 6
Dependent Claim
39 words
The arrangement of claim 4, wherein said first and second channels and said first and second dividers extend parallel to each other at said portions of said second and first dividers extending opposite to said first and second channels.
Claim 7
Dependent Claim
27 words
The arrangement of claim 1, wherein said first plates, said second plates and seal plates are each provided with a different identifying shape at outside edges thereof.
Claim 8
Dependent Claim
60 words
The arrangement of claim 6, wherein said identifying shape of end said first plate is a convex member on one side thereof, said identifying member of each said second plate is a convex member on a side thereof and said identifying member of each seal plate comprises concave portions for receiving said convex portions of said first and second plates.
Claim 9
Dependent Claim
63 words
The arrangement of claim 6, wherein said identifying shape of each said first plate comprises rounded corners on said first flat rectangular panel, said identifying shape on each second plate comprises beveled corners on said second flat rectangular panel and said identifying shape on each said seal plate comprises corners shaped differently than said corners of said first and second flat rectangular panels.
Claim 10
Dependent Claim
51 words
The arrangement of claim 1, wherein opposite end plates are provided having said first and second plates and said seal plates therebetween, one of said end plates being provided with inlet and outlet pipes for the first and second heat exchange fluids communicating with said pairs of first and second holes.
Claim 11
Dependent Claim
37 words
The arrangement of claim 9, wherein said holes of said pairs of first and second holes of each said first plate have a smaller diameter than the outer diameter of the respective said inlet and outlet pipes.
Claim 12
Dependent Claim
25 words
The arrangement of claim 10, wherein said inlet and outlet pipes extend through the one said end plate and abut against one said first plate.
Claim 13
Dependent Claim
368 words
An arrangement in a layer-built heat exchanger, comprising: a first plate comprising a first flat rectangular panel having a plurality of first channels therein defined and separated by a plurality of first dividers for the flow of a first heat exchange fluid through said first channels, a pair of first holes through said first flat rectangular panel for the flow of the first heat exchange fluid, said first holes being located at opposite ends of said first channels, and a pair of second holes through said first flat rectangular panel for the flow a second heat exchange fluid; a second plate comprising a second flat rectangular panel having a plurality of second channels therein defined and separated by a plurality of second dividers for the flow of a second heat exchange fluid through said second channels, a pair of first holes through said second flat rectangular panel aligned with said first holes of said first plate for the flow of the first heat exchange fluid therethrough, and a pair of second holes through said second flat rectangular panel aligned with said second holes of said first plate for the flow of the second heat exchange fluid therethrough, said second holes being located at opposite ends of said second channels; a seal plate disposed between said first plate and said second plate, said seal plate having a pair of first holes therethrough aligned with said first holes of said first and second plates for the flow of the first heat exchange fluid, and a pair of second holes therethrough aligned with said second holes of said first and second plates; and opposite end plates having said first and second plates and said seal plate therebetween, one of said end plates having inlet and outlet pipes for the first and second heat exchange fluids communicating with said pairs of first and second holes, said inlet and outlet pipes extending through the respective said holes of said first and second plates and said seal plate to the other said end plate, and said inlet and outlet pipes each having an elongated hole therein extending between said end plates in said holes of said first and second plates and said seal plate.
Claim 14
Dependent Claim
368 words
An arrangement in a layer-built heat exchanger, comprising: a first plate comprising a first flat rectangular panel having a plurality of first channels therein defined and separated by a plurality of first dividers for the flow of a first heat exchange fluid through said first channels, a pair of first holes through said first flat rectangular panel for the flow of the first heat exchange fluid, said first holes being located at opposite ends of said first channels, and a pair of second holes through said first flat rectangular panel for the flow a second heat exchange fluid; a second plate comprising a second flat rectangular panel having a plurality of second channels therein defined and separated by a plurality of second dividers for the flow of a second heat exchange fluid through said second channels, a pair of first holes through said second flat rectangular panel aligned with said first holes of said first plate for the flow of the first heat exchange fluid therethrough, and a pair of second holes through said second flat rectangular panel aligned with said second holes of said first plate for the flow of the second heat exchange fluid therethrough, said second holes being located at opposite ends of said second channels; a seal plate disposed between said first plate and said second plate, said seal plate having a pair of first holes therethrough aligned with said first holes of said first and second plates for the flow of the first heat exchange fluid, and a pair of second holes therethrough aligned with said second holes of said first and second plates; and opposite end plates having said first and second plates and said seal plate therebetween, one of said end plates having inlet and outlet pipes for the first and second heat exchange fluids communicating with said pairs of first and second holes, said inlet and outlet pipes extending through the respective said holes of said first and second plates and said seal plate to the other said end plate, and said inlet and outlet pipes each having an elongated hole therein extending between said end plates in said holes of said first and second plates and said seal plate.
Claim 15
Dependent Claim
521 words
An arrangement in a layer-built heat exchanger, comprising: a first plurality of plates each comprising a first flat rectangular panel having a plurality of first channels therein defined and separated by a plurality of first dividers for the flow of a first heat exchange fluid through said first channels, a pair of first holes through said first flat rectangular panel for the flow of the first heat exchange fluid located at opposite ends of said first channels, and a pair of second holes through said first flat rectangular panel for the flow a second heat exchange fluid; a plurality of second plates each comprising a second flat rectangular panel having a plurality of second channels therein defined and separated by a plurality of second dividers for the flow of a second heat exchange fluid through said second channels, a pair of first holes through said second flat rectangular panel aligned with said first holes of said first plates for the flow of the first heat exchange fluid therethrough, and a pair of second holes through said second flat rectangular panel aligned with said second holes of said first pleates for the flow of the second heat exchange fluid therethrough, said second holes of said second plates being located at opposite ends of said second channels, said second holes ofd said first plates being larger than said second holes of said second plates, and said first holes of said second plates being larger than said first holes of said first plates; and a plurality of seal plates disposed between said first plates and said second plates, said seal plates having a pair of first holes therethrough aligned with said first holes of said first and second plates for the flow of the first heat exchange fluid, and a pair of second holes therethrough aligned with said second holes of said first and second plates, said first holes and said second holes of said seal plates having substantially the same configuration as said first holes of said second plates and said second holes of said first plates, respectively, wherein said first plates and said second plates alternate with said seal plates disposed between said first and second plates so as to isolate said first and second plates from each other, wherein said first holes of said seal plates and said first holes of said second plates are located over said first holes of said first plates so as to define first buffer chambers over said first holes of the first plates, and said second holes of said first plates and said second holes of said seal plates are located over said second holes of said second plates to define second buffer chambers over said second holes of said second plates; wherein said ends of said first channels and said ends of said second channels of said first and second plates intrude into said first and second buffer chambers, and are located such that the length of said channels increases in said first and second buffer chambers with an increase in the distance of said channels from the center of their respective said hole.
Claim 16
Dependent Claim
521 words
An arrangement in a layer-built heat exchanger, comprising: a first plurality of plates each comprising a first flat rectangular panel having a plurality of first channels therein defined and separated by a plurality of first dividers for the flow of a first heat exchange fluid through said first channels, a pair of first holes through said first flat rectangular panel for the flow of the first heat exchange fluid located at opposite ends of said first channels, and a pair of second holes through said first flat rectangular panel for the flow a second heat exchange fluid; a plurality of second plates each comprising a second flat rectangular panel having a plurality of second channels therein defined and separated by a plurality of second dividers for the flow of a second heat exchange fluid through said second channels, a pair of first holes through said second flat rectangular panel aligned with said first holes of said first plates for the flow of the first heat exchange fluid therethrough, and a pair of second holes through said second flat rectangular panel aligned with said second holes of said first pleates for the flow of the second heat exchange fluid therethrough, said second holes of said second plates being located at opposite ends of said second channels, said second holes ofd said first plates being larger than said second holes of said second plates, and said first holes of said second plates being larger than said first holes of said first plates; and a plurality of seal plates disposed between said first plates and said second plates, said seal plates having a pair of first holes therethrough aligned with said first holes of said first and second plates for the flow of the first heat exchange fluid, and a pair of second holes therethrough aligned with said second holes of said first and second plates, said first holes and said second holes of said seal plates having substantially the same configuration as said first holes of said second plates and said second holes of said first plates, respectively, wherein said first plates and said second plates alternate with said seal plates disposed between said first and second plates so as to isolate said first and second plates from each other, wherein said first holes of said seal plates and said first holes of said second plates are located over said first holes of said first plates so as to define first buffer chambers over said first holes of the first plates, and said second holes of said first plates and said second holes of said seal plates are located over said second holes of said second plates to define second buffer chambers over said second holes of said second plates; wherein said ends of said first channels and said ends of said second channels of said first and second plates intrude into said first and second buffer chambers, and are located such that the length of said channels increases in said first and second buffer chambers with an increase in the distance of said channels from the center of their respective said hole.
Claim 17
Dependent Claim
87 words
The arrangement of claim 13, wherein at each said end of said first and second channels, said channels overlap, in a direction perpendicular to said flat rectangular panels, the respective said first and second holes of each said seal plate aligned with the respective said hole of each said end of said channels, said channels increasing in the amount of overlap with the respective said hole of said seal plate with the increase in the distance of said channels from the center of their respective said hole.
Claim 18
Dependent Claim
68 words
The arrangement of claim 14, wherein said first holes of said first plate and said second holes of each said second plate are each circular, and said first and second holes of each said seal plate each comprise a rectangular portion overlapped by a said end of said channels and a semi-circular portion aligned with one of said first and second holes of said first and second plates.
Claim 19
Dependent Claim
25 words
The arrangement of claim 13, wherein said ends of said first channels and said ends of said second channels partially surround their respective said holes.
References Cited (Backward Citations)
DE143252C
Cited
FR812049A
Cited
FR885659A
Cited
GB798535A
Cited
GB1131124A
Cited
US3690373A
Cited
FR1603631A
Cited
US3733244A
Cited
FR2184536A1
Cited
SU516894A1
Cited
US4258784A
Cited
JPS553172A
Cited
JPS55121394A
Cited
US4503908A
Cited
JPS5671791A
Cited
JPS57196091A
Cited
US4572766A
Cited
US4516632A
Cited
JPS6066978A
Cited
JPS6155584A
Cited
JPS61122493A
Cited
JPS61122494A
Cited
JPS6237694A
Cited
JPS62213688A
Cited
JPS6330776A
Cited
JPS6414595A
Cited
US4815534A
Cited
JPH0240496A
Cited
US4966231A
Cited
US5063995A
Cited
US5056590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-02-27 | 1998-08-29 | 1999-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-02-27 | 2002-08-29 | 2003-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-02-27 | 2006-08-29 | 2007-02-28 | $7700.00 | Window Closed / Lapsed |