US6076598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Opposed flow heat exchanger
Assignee: Mitsubishi Electric Corp
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Filing: 1997-09-03
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Granted: 2000-06-20
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Expires: 2017-09-03
Abstract
Abstract An opposed flow heat exchanger comprising partitions including a corrugated portion for forming passages in a wavefront direction, and flat portions for taking in or out air flows from a predetermined direction at opposite ends of the corrugated portion in the wavefront direction; and flat shape holding plates having a length in a direction of the passages which is not longer than a length of the partitions; wherein the partitions and the shape holding plates are alternately layered so that the corrugated portion of each of the partitions and the shape holding plates contact together, and the flat portion of each of the partitions faces to the flat portion of a partition adjacent thereto, thereby independently forming the passages through the partitions.
Inventors
- 👤 Akira Doi
- 👤 Kunihiko Kaga
- 👤 Hiroyuki Akita
- 👤 Hidemoto Arai
- 👤 Youichi Sugiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:11
CPC Classifications
F; F24; F24F; F24F12/00; F24F12/001; F24F12/006; F28; F28D; F28D9/00; F28D9/0031; F28D9/0037; F28F; F28F2250/00; F28F2250/10; F28F2250/108; Y; Y02; Y02B; Y02B30/00; Y02B30/56; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/356; Y10S165/393; Y10S165/905
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
149 words
An opposed flow heat exchanger, comprising: partitions each including a corrugated portion defining passages in a wavefront direction, and flat portions for taking in or out air flows from a predetermined direction at opposite ends of said corrugated portion in the wavefront direction; and flat shape holding plates having a length in a direction of said passages which is not longer than a length of said corrugated portion of said partitions; said partitions and said shape holding plates being alternately layered so that said corrugated portion of each said partition contacts respective adjacent shape holding plates, wherein said flat portion of each said partition faces a respective said flat portion of an adjacent said partition, thereby independently forming the passages through said partitions; wherein opposite ends of said shape holding plates are retracted relative to respective opposite ends of each said corrugated portion in the direction of said passages.
Claim 2
Dependent Claim
149 words
An opposed flow heat exchanger, comprising: partitions each including a corrugated portion defining passages in a wavefront direction, and flat portions for taking in or out air flows from a predetermined direction at opposite ends of said corrugated portion in the wavefront direction; and flat shape holding plates having a length in a direction of said passages which is not longer than a length of said corrugated portion of said partitions; said partitions and said shape holding plates being alternately layered so that said corrugated portion of each said partition contacts respective adjacent shape holding plates, wherein said flat portion of each said partition faces a respective said flat portion of an adjacent said partition, thereby independently forming the passages through said partitions; wherein opposite ends of said shape holding plates are retracted relative to respective opposite ends of each said corrugated portion in the direction of said passages.
Claim 3
Dependent Claim
26 words
An opposed flow heat exchanger according to claim 1, wherein said length of said shape holding plates is uniform along a direction transverse to said passages.
Claim 4
Dependent Claim
136 words
An opposed flow heat exchanger, comprising: partitions each including a corrugated portion defining passages extending in a wavefront direction, and flat portions for taking in or out air flows from a predetermined direction at opposite ends of said corrugated portion in the wavefront direction; and flat shape holding plates having a length in a direction of said passages which is not longer than a length of said corrugated portion of said partitions; said partitions and said shape holding plates being alternately layered so that said corrugated portion of each said partition contacts respective adjacent shape holding plates, wherein said flat portion of each said partition faces a respective said flat portion of an adjacent said partition, thereby independently forming the passages through said partitions; wherein said shape holding plates have a surface formed with raised pieces.
Claim 5
Dependent Claim
136 words
An opposed flow heat exchanger, comprising: partitions each including a corrugated portion defining passages extending in a wavefront direction, and flat portions for taking in or out air flows from a predetermined direction at opposite ends of said corrugated portion in the wavefront direction; and flat shape holding plates having a length in a direction of said passages which is not longer than a length of said corrugated portion of said partitions; said partitions and said shape holding plates being alternately layered so that said corrugated portion of each said partition contacts respective adjacent shape holding plates, wherein said flat portion of each said partition faces a respective said flat portion of an adjacent said partition, thereby independently forming the passages through said partitions; wherein said shape holding plates have a surface formed with raised pieces.
Claim 6
Dependent Claim
26 words
An opposed flow heat exchanger according to claim 3, wherein said length of said shape holding plates is uniform along a direction transverse to said passages.
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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) | 2003-06-20 | 2003-12-20 | 2004-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-06-20 | 2007-12-20 | 2008-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-06-20 | 2011-12-20 | 2012-06-20 | $7700.00 | Window Closed / Lapsed |