Fin tube heat exchanger with divergent tube rows
AssigneeAmerican Standard International Inc.
InventorsGlen F. Shippy, Jeffrey C. Marks, Allen E. Swaw
Life of this patent
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Abstract
A fin tube heat exchanger. The fin tube heat exchanger comprises: a first tube row including a plurality of tubes; and a second tube row including a second plurality of tubes. The first and second tube rows includes a slab portion respectively in contiguous parallel relation with the counterpart slab portion of the other tube row. Each of the first and second tube rows includes a respective first and second spread portion wherein the first and second spread portions are in diverging non-contacting relation with respect to each other.
Claims25
A fin tube heat exchanger comprising:
- a first tube row having a first portion, a second portion, and a third portion;
- a second tube row having a fourth portion, a fifth portion and a sixth portion;
- a first plate fin, having a plurality of apertures, in operative engagement with the tube rows of the first and fourth portions;
- a second plate fin, having a plurality of apertures, in engagement with the tube rows of the third portion;
- a third plate fin, having a plurality of apertures, in operative engagement with the tube row of the sixth portion;
- wherein a third portion is a first angle relative to the first portion and the sixth portion is at a second angle relative to the first portion;
- and
- wherein first and second angles diverge.
A fluid-to-fluid heat exchanger comprising:
- a plurality of tubes containing a heat transfer fluid, each tube of the plurality of tubes having a first leg and a second leg, the plurality of tubes including a first set of the plurality of tubes, and a second set of the plurality of tubes;
- a first wall structure including the first legs of the first set and the first legs of the second set;
- a second wall structure including the second legs of the first set;
- a third wall structure including the second legs of the second set;
- wherein the first legs of each tube in the first wall structure are in parallel;
- and
- wherein the second legs in the second wall structure are at divergent angles in relation to the second legs in the third wall structure.
A fin tube heat exchanger comprising:
- a first tube row including a plurality of tubes, a slab portion and a first spread portion;
- a second tube row including a second plurality of tubes, a slab portion and a second spread portion;
- wherein each of the first and second tube rows slab portions are respectively in contiguous parallel relation with the counterpart slab portion of the other tube row;
- and
- wherein the first and second spread sections are in diverging non-contacting relation with respect to each other.
A method of forming a heat exchanger comprising the steps of:
- forming a first row of tubes in a first plane where each tube of the first row of tubes includes a first leg and a second leg;
- forming a second row of tubes in a second plane parallel to the first plane where each tube of the second tube row includes a first leg and a second leg;
- joining the respective first legs of the first and second tube rows with a common plate fin;
- providing second and third plate fins for the respective second legs of the first and second tube rows;
- bending the second leg of the first tube row at a first angle such that the second leg of the first tube row is no longer in the first plane;
- and
- bending the second leg of the second tube row to a second angle such that the second leg is not in the second plane and the second angle differs from the first angle.
Dependencies are inferred from the claim text.