Pipe connection for heat exchangers

Details Pipe connection for heat exchangers Pipe connection for heat exchangers

1987-09-24

1988-09-06

Hart, Douglas

Heat exchange

Tubular structure

285305, 285321, 285330, F16L 3714

Patent

active

047685875

ABSTRACT:
A pipe connection arrangement for a water tank of a heat exchanger of a motor vehicle heater includes a pipe equipped with a collar at a pipe end for inserting into a connecting sleeve at the water tank. The pipe is provided with a seal on a first side of the collar, with the seal being pressed tightly into a recess in the connecting sleeve. A holding clamp rests on the other side of the collar facing away from the seal with the holding clamp being formed asd a U-shape. The clamp is developed in such a way that its U-bracket-shaped part rests tightly against the pipe exterior. This design results in the load transmission being evenly transmitted over a relatively large surface area. The sleeve includes openings formed as slots for receiving the clamp, with a reinforcing web provided in the center of the slots. The clamp is secured by another gripping part that projects from the bracket part and engages behind a reinforcing web of the connecting sleeve. Another advantage the invention provides is the possibility of mounting pipes closely at water tanks without any screwed connection and providing a largely even sealing force.

REFERENCES:
patent: 1075281 (1913-10-01), Anderson
patent: 2021241 (1935-11-01), Mall
patent: 3154327 (1964-10-01), Rothschild
patent: 3215455 (1965-11-01), Fiala et al.
patent: 3287032 (1966-11-01), Kraybill
patent: 3414299 (1968-12-01), Roe
patent: 3527485 (1970-09-01), Goward et al.
patent: 3929356 (1975-12-01), DeVincent et al.
patent: 4423892 (1984-01-01), Bartholomew
Vesci, A., "Quick-Connect Tube Fitting", vol. 20, No. 9, Feb. 1978, IBM Technical Disclosure Bulletin, pp. 3662-3663.

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