Heat exchanger and method of making it

F - Mech Eng,Light,Heat,Weapons – 28 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

F28F 3/04 (2006.01) B23P 15/26 (2006.01) F28D 1/03 (2006.01) F28F 13/08 (2006.01)

Patent

CA 2309240

A heat exchanger is constructed by tubes (11), corrugated fins (14) and head pipes (12, 13), which are assembled together. Herein, the tube is constructed by bending a flat plate (20) whose surfaces are clad with brazing material to form a first wall (21) and a second wall (22), which are arranged opposite to each other with a prescribed interval of distance therebetween to provide a refrigerant passage (23). Before bending, a number of swelling portions (25) are formed to swell from an interior surface of the flat plate by press. By bending, the swelling portions are correspondingly paired in elevation between the first and second walls, so their top portions (25a) are brought into contact with each other to form columns (26) each having a prescribed sectional shape corresponding to an elliptical shape or an elongated circular shape each defined by a short length (d1) and a long length (d2). The columns are arranged to align long lengths thereof in a length direction (A) of the tube corresponding to a refrigerant flow direction such that obliquely adjacent columns, which are arranged adjacent to each other obliquely with respect to the length direction of the tube, are arranged at different locations and are partly overlapped with each other with long lengths thereof in view of a width direction (B) perpendicular to the length direction of the tube. The tubes, corrugated fins and head pipes are assembled together and are then placed into a heating furnace to heat for a prescribed time.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Heat exchanger and method of making it does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat exchanger and method of making it, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat exchanger and method of making it will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2045526

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.