Roll formed heat exchanger tubing with double row flow passes

Details Roll formed heat exchanger tubing with double row flow passes Roll formed heat exchanger tubing with double row flow passes

1992-06-01

1993-02-16

Rivell, John

Heat exchange

Tubular structure

165183, 165906, 29890053, 138170, 138171, F28F 102, F16L 904, B21D 5302

Patent

active

051862514

ABSTRACT:
Heat exchanger with double row tubes with each tube being substantially identical and made by a sequence of roll forming operations from a single piece blank so that it has a centralized vertical connector web of the thickness of the blank connecting and supporting opposite side walls of the tubes to separate each tube into separate flow passes for augmenting tube burst strength from high internal pressures. Also, the vertical connector web effectively eliminates tube crushing from compression loads exerted onto a core of tubes and corrugated air centers by retainer bands used to hold these components together for their subsequent brazing together in a high temperature oven to form a core. With these tubes employed, heat exchanger efficiency is improved since the apices of the air centers have extensive direct contact with the flat sides of the roll formed tubes thoughout their widths. The tubes of this invention are formed with effective and efficient usage of all material of the blank and have continuous and even peripheries for improved brazing to header plates or end tanks facilitating the manufacture of high capacity heat exchangers with reduced weight. After being brazed and employed in a heat exchanger, heat energy is transferred by conduction from the heat exchanger fluid to the tubes and then directly to the air centers.

REFERENCES:
patent: 2554185 (1951-05-01), Giegerich
patent: 2655181 (1953-10-01), Cooper
patent: 4024619 (1977-05-01), Jonason

Affiliated with

Also associated with

Rating

Roll formed heat exchanger tubing with double row flow passes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Roll formed heat exchanger tubing with double row flow passes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roll formed heat exchanger tubing with double row flow passes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2142127