EP0431917B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Consolidated duplex heat exchanger
Assignee: Altemira Co Ltd
•
Filing: 1990-12-05
•
Granted: 1994-05-04
•
Expires: 2010-12-05
Abstract
Abstract A consolidated duplex heat exchanger includes a first unit heat exchanger used for instance as a radiator, and a second unit heat exchanger employed for instance as condenser for a car-cooler. The two unit heat exchangers (10 and 20) are juxtaposed parallel with and close to each other and united together by common corrugated fins each extending between cores of the unit heat exchangers. The corrugated fins are provided with cutouts (2) intermediate the two unit heat exchanger parts so as to intercept undesirable heat conduction between the unit heat exchangers. <IMAGE>
Inventors
- 👤 Tetsuya Tategami
- 👤 Hironaka Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 20:57
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/126; F28F1/128; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/0408; F28D1/0426; F28D1/0435; F28D21/00; F28D2021/0019; F28D2021/008; F28D2021/0084; F28D2021/0091; F28D2021/0094; F28F9/00; F28F9/001; F28F2009/004; F28F2215/00; F28F2215/02; F28F2270/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
107 words
A consolidated duplex heat exchanger comprising a first unit heat exchanger (10), a second unit heat exchanger (20), the two unit heat exchangers operating at different temperatures, corrugated fins (2) being co-owned by and thereby consolidating the two unit heat exchangers into the duplex heat exchanger, the corrugated fins (1) comprising at their intermediate portions in a direction of width one or more cutout notches (2) to intercept heat conduction between the two unit heat exchangers (10 and 20), the cutout notches being formed by partially slitting the corrugated fins (1) alternately from an edge and from another edge in opposite directions of height of the fins.
Claim 2
Dependent Claim
72 words
A consolidated duplex heat exchanger according to claim 1, characterized in that both the first and second unit heat exchangers (10 and 20) comprise a pair of headers (11 and 12) with a space between them and a plurality of tubes (21 and 22) disposed parallel with each other between the headers and having opposite ends in liquid communication therewith, the corrugated fins (1) each being interposed between the two adjacent tubes.
Claim 3
Dependent Claim
45 words
A consolidated duplex heat exchanger according to claim 1 or 2, characterized in that the height "S" of the notches (2) is "0.7 H" or more, "H" being height of the corrugated fins, and pitch "P" of the notches is "0.1 H" to "0.3 H".
Claim 4
Dependent Claim
42 words
A consolidated duplex heat exchanger according to any preceeding claim, characterized in that the first unit heat exchanger is a radiator used for cooling an automobile engine and the second unit heat exchanger is a condenser used for air-conditioning an automobile room.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.