Patent US4467948A successfully refreshed from Google Patents.
Patent EP0138435A2 successfully refreshed from Google Patents.
EP0138435A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Tube and fin heat exchanger
Assignee: Motors Liquidation Co
•
Filing: 1984-09-24
•
Granted: —
•
Expires: 2004-09-24
Abstract
Abstract A tube and fin heat exchanger is disclosed having a plurality of U-shaped tubes (14), each comprising two substantially parallel legs (24) interconnected by a U-shaped bight portion (26), and being arranged within the heat exchanger so that each leg (24) thereof lies in a respective one of two separate banks of tube legs with the banks being staggered relative to one another so that each U-shaped tube (14) lies in a plane inclined at an acute angle to the longitudinal axes (32, 34) of the banks, and the ends of the legs (24) are interconnected by manifolds (28, 30) having separate plenum chambers (48, 50, 52, 54, 56, 58) so as to convey fluid back and forth across the heat exchanger in a plurality of passes of several legs each.
Inventors
- 👤 James Edward Farry, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 16:15
CPC Classifications
F; F25; F25B; F25B39/00; F25B39/04; F28; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/047; F28D1/0475; F28D1/0477; F28F; F28F9/00; F28F9/02; F28F9/0202; F28F9/0204; F28F9/0209; F28F9/0212; F28F9/0243; F28D21/00; F28D2021/0019; F28D2021/008; F28D2021/0084
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
172 words
A tube and fin heat exchanger having a plurality of U-shaped tubes (14), each comprising two substantially parallel legs (24) interconnected by a U-shaped bight portion (26), the free ends of the legs (24) of the tubes (14) being interconnected so as to convey a fluid back and forth across the heat exchanger in a plurality of passes between an inlet (20) and an outlet (22), characterised in that each U-shaped tube (14) is arranged within the heat exchanger so that each leg (24) thereof lies in a respective one of two separate banks of tube legs with the banks being staggered relative to one another so that each U-shaped tube (14) lies in a plane inclined at an acute angle to the longitudinal axes (32,34) of the banks, and there are separate multi-pass manifold means (28,30) interconnecting the ends of the legs (24) so that the fluid is caused to flow in several passes, each comprising several legs (24), across the heat exchanger between the inlet (20) and the outlet (22)
Claim 2
Dependent Claim
172 words
A tube and fin heat exchanger having a plurality of U-shaped tubes (14), each comprising two substantially parallel legs (24) interconnected by a U-shaped bight portion (26), the free ends of the legs (24) of the tubes (14) being interconnected so as to convey a fluid back and forth across the heat exchanger in a plurality of passes between an inlet (20) and an outlet (22), characterised in that each U-shaped tube (14) is arranged within the heat exchanger so that each leg (24) thereof lies in a respective one of two separate banks of tube legs with the banks being staggered relative to one another so that each U-shaped tube (14) lies in a plane inclined at an acute angle to the longitudinal axes (32,34) of the banks, and there are separate multi-pass manifold means (28,30) interconnecting the ends of the legs (24) so that the fluid is caused to flow in several passes, each comprising several legs (24), across the heat exchanger between the inlet (20) and the outlet (22)
Claim 3
Dependent Claim
54 words
A tube and fin heat exchanger according to claim 1, characterised in that-the multi-pass manifold means comprise two substantially parallel manifold tubes (28,30) each of which is subdivided into plenum chambers (48,50,52,54,56,58), each of which plenum chambers (48,50,52,54,56,58) is interconnected with several ends of the legs (24) in a respective bank of tube legs.
Claim 4
Dependent Claim
37 words
A tube and fin heat exchanger according to claim 2, characterised in that each manifold tube (28,30) is subdivided into plenum chambers (48,50,52,54,56,58) by means of plug means (40,42,44,46)inserted into predetermined positions within the manifold tube (28,30).
Claim 5
Dependent Claim
39 words
A tube and fin heat exchanger according to claim 2 or 3, characterised in that there are twenty-one U-shaped tubes (14), the ends of which are interconnected to respective plenum chambers (48,50,52,54,56,58) in a 5-5-4-4-4-4-4-4-4-4 arrangement as hereinbefore defined.
Claim 6
Dependent Claim
39 words
A tube and fin heat exchanger according to claim 2 or 3, characterised in that there are twenty-one U-shaped tubes (14), the ends of which are interconnected to respective plenum chambers (48A,50A,52A,54A,56A,58A,64,66) in a 3-3-3-3-3-3-3-3-3-3-3-3-3-3 arrangement as hereinbefore defined.
Claim 7
Dependent Claim
38 words
A tube and fin heat exchanger according to.claim 2 or 3, characterised in that there are twenty-one U-shaped tubes (14), the ends of which are interconnected to respective plenum chambers (48B,50B,52B,54B,56B,58B) in a 5-5-5-5-5-5-4-4-2-2 arrangement as hereinbefore defined.
Claim 8
Dependent Claim
39 words
A tube and fin heat exchanger according to claim 2 or 3, characterised in that there are twenty-one U-shaped tubes (14), the ends of which are interconnected to respective plenum chambers (48C,50C,52C,54C,56C,58C,64C) in a 5-5-4-4-4-4-3-3-3-3-2-2 arrangement as hereinbefore defined.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.