Heat exchanger
AssigneeSanden Corporation
InventorHitoshi Chigira
Life of this patent
Estimating the term…
Abstract
A heat exchanger having a pair of header pipes each of which includes a U-shaped wall and a front wall connected thereto to define a hollow portion. The front wall has a plurality of arc-shaped portions and plane portions each of which is disposed between adjacent arc-shaped portions in the longitudinal direction of the header pipe. Each of the plane portions are provided with an elongated hole therethrough. A plurality of fluid tubes are disposed between the header pipes in fluid communication therewith via the elongated holes. A plurality of corrugated fins are disposed between the opposed outer surfaces of the fluid tubes. Thus, the pressure loss of refrigerant in the heat exchanger is very low.
Claims6
A heat exchanger comprising:
- a pair of header pipes each including a U-shaped wall, a front wall connected to said U-shaped wall to define a hollow portion therewith and partition walls between each said U-shaped and front walls, said front wall having a plurality of convex portions and concave portions, said concave portions being disposed between said convex portions in the longitudinal direction of said header pipes, said convex portions extending toward said U-shaped wall, and each concave portion being provided with an elongated hole therethrough;
- a plurality of fluid tubes disposed between said header pipes in fluid communication therewith via said elongated holes;
- and
- a plurality of corrugated fins disposed between opposed outer surfaces of said fluid tubes.
A heat exchanger comprising:
- a first header pipe comprising a U-shaped wall and a front wall connected thereto to define a hollow portion, said front wall having a plurality of concave and convex portions, said convex portions extending toward said U-shaped wall, each of said concave portions being provided with an elongate hole therethrough;
- a second header pipe comprising a U-shaped wall and a front wall connected thereto to define a hollow portion, said front wall having a plurality of convex portions and concave portions disposed between said convex portions in the longitudinal direction of said header pipes, said convex portions extending toward said U-shaped wall, each of said concave portions being provided with an elongate hole therethrough;
- a plurality of fluid tubes disposed between said header pipes in fluid communication therewith via said elongate holes;
- and
- a plurality of corrugated fins disposed between opposed outer surfaces of said fluid tubes.
A heat exchanger comprising:
- a first header pipe including a plurality of elongate holes;
- a second header pipe comprising a U-shaped wall and front wall connected thereto to define a hollow portion, said front wall comprising a plurality of convex portions and a plurality of elongate holes, said convex portions extending toward said U-shaped wall and said elongate holes disposed between said convex portions in a longitudinal direction of said header pipes;
- a plurality of fluid tubes disposed between said header pipes in fluid communication therewith via said elongate holes;
- and
- a plurality of corrugated fins disposed between opposed outer surfaces of said fluid tubes.
Dependencies are inferred from the claim text.