Patent US4574872A successfully refreshed from Google Patents.
US4574872A
Expired / Lapsed
US
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Heat exchanger apparatus
Assignee: Panasonic Ecology Systems Co Ltd
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Filing: 1983-11-02
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Granted: 1986-03-11
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Expires: 2003-11-02
Abstract
Abstract A heat exchanger apparatus includes a cylindrical-shaped heat exchanger formed by alternately laminating first and second elements in the circumferential direction of the cylindrical-shaped heat exchanger. The cylindrical-shaped heat exchanger is rotated to carry out the function of the conventional regenerative rotary type total heat exchanger. In addition, the first and second elements are also allowed to effect a heat exchange or total heat exchange operation. The cylindrical-shaped heat exchanger is either hollow or solid, which provides many variations in arrangement of air ducts for primary and secondary air flows. Further, a partition interposed between the first and second elements has variation in property: permeable to water vapor; non-permeable to water vapor as well as non-hygroscopic; and so forth. The first and second elements exchange heat with each other in a total heat exchange operation mode and a sensible heat exchange operation mode.
Inventors
- 👤 Nobuyuki Yano
- 👤 Takuro Kotera
- 👤 Toshio Utagawa
- 👤 Akira Aoki
- 👤 Kazufumi Watanabe
- 👤 Masao Wakai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:02
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/147; F28; F28D; F28D19/00; F28D19/04; F28D9/00; F28D9/0012; F28D9/0018; F24F2203/00; F24F2203/10; F24F2203/1032; F24F2203/1036; F24F2203/104; F24F2203/1048; F24F2203/1052; F24F2203/1068; F24F2203/1084; Y; Y10; Y10S; Y10S165/00; Y10S165/009; Y10S165/013; Y10S165/016; Y10S165/018
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
226 words
A heat exchanger apparatus for exchanging heat between first and second air flows, comprising a cylindrical-shaped rotary heat exchanger having first and second end surfaces, inner and outer peripheral portions and a longitudinal axis, said heat exchanger including first and second laminated elements alternately distributed in the circumferential direction around said axis; separator means positioned at an end surface of said rotary heat exchanger for dividing each of said first and second air flows into first and second portions; and flow passage means interposed between said separator means and said rotary heat exchanger for diverting the first portion of said first air flow through a first element of said rotary heat exchanger, the second portion of said first air flow through a second element of said heat exchanger, the first portion of said second air flow through a second element of said heat exchanger disposed adjacent the second element through which the second portion of said first air flow passes, and the second portion of said second air flow through a first element of said heat exchanger disposed adjacent the first element through which the first portion of said first air flow passes, said flow passage means merging the first and second portions of said first air flow and the first and second portions of said second air flow after passage through said rotary heat exchanger.
Claim 2
Dependent Claim
226 words
A heat exchanger apparatus for exchanging heat between first and second air flows, comprising a cylindrical-shaped rotary heat exchanger having first and second end surfaces, inner and outer peripheral portions and a longitudinal axis, said heat exchanger including first and second laminated elements alternately distributed in the circumferential direction around said axis; separator means positioned at an end surface of said rotary heat exchanger for dividing each of said first and second air flows into first and second portions; and flow passage means interposed between said separator means and said rotary heat exchanger for diverting the first portion of said first air flow through a first element of said rotary heat exchanger, the second portion of said first air flow through a second element of said heat exchanger, the first portion of said second air flow through a second element of said heat exchanger disposed adjacent the second element through which the second portion of said first air flow passes, and the second portion of said second air flow through a first element of said heat exchanger disposed adjacent the first element through which the first portion of said first air flow passes, said flow passage means merging the first and second portions of said first air flow and the first and second portions of said second air flow after passage through said rotary heat exchanger.
Claim 3
Dependent Claim
101 words
A heat exchanger apparatus according to claim 1 wherein each of said first elements has a passage extending from said first end surface of said rotary heat exchanger to said second end surface thereof in the direction of said longitudinal axis, each of said second elements has a passage extending from the inner peripheral portion at said first end surface of said heat exchanger to the inner peripheral portion at said second end surface thereof, and wherein a partition plate is provided in the inner peripheral portion of said rotary heat exchanger, said partition plate being integral with said heat exchanger.
Claim 4
Dependent Claim
94 words
A heat exchanger apparatus according to claim 1 wherein each of said first elements has a passage extending from said first end surface of said rotary heat exchanger to the inner peripheral portion at said second end surface thereof, each of said second elements has a passage extending from the inner peripheral portion at said first end surface of said heat exchanger to said second end surface thereof, and wherein a partition plate is provided in the inner peripheral portion of said rotary heat exchanger, said partition plate being integral with said heat exchanger.
Claim 5
Dependent Claim
73 words
A heat exchanger apparatus according to claim 1 wherein each of said first elements has a passage extending from said first surface of said rotary heat exchanger to the outer peripheral portion at said second end thereof in the direction of said longitudinal axis, and each of said second elements has a passage extending from the outer peripheral portion at said second end of said heat exchanger to said first and surface thereof.
Claim 6
Dependent Claim
75 words
A heat exchanger apparatus according to claim 1 wherein each of said first elements has a passage extending from said first end surface of said rotary heat exchanger to said second end thereof, and each of said second elements has a passage extending from the outer peripheral portion at said first end of said rotary heat exchanger to the outer peripheral portion thereof at said second end surface in the direction of said longitudinal axis.
Claim 7
Dependent Claim
100 words
A heat exchanger apparatus according to claim 1 wherein each of said first elements has a passage extending from the outer peripheral portion at said first end of said rotary heat exchanger to the inner peripheral portion at said second end thereof, each of said second elements has a passage extending from the inner peripheral portion at said first end of said heat exchanger to the outer peripheral portion at said second end thereof, and wherein a partition plate is provided in the inner peripheral portion of said rotary heat exchanger, said partition plate being integral with said heat exchanger.
Claim 8
Dependent Claim
36 words
A heat exchanger apparatus according to claim 1, wherein partitions are provided between the first and second elements of said heat exchanger, said partitions being nonpermeable to water vapor and at least a part thereof hygroscopic.
References Cited (Backward Citations)
JPS56146987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-10 | 1989-09-09 | 1990-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-10 | 1993-09-09 | 1994-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-10 | 1997-09-09 | 1998-03-11 | $7700.00 | Window Closed / Lapsed |