Apparatus for pressure fitting a tube in a plate, e.g. a tube sh

Details Apparatus for pressure fitting a tube in a plate, e.g. a tube sh Apparatus for pressure fitting a tube in a plate, e.g. a tube sh

1982-02-16

1984-12-04

Crane, Daniel C.

Metal working

Method of mechanical manufacture

Assembling or joining

29421R, 29727, 72 62, 60589, 92165R, B21D 3900

Patent

active

044855478

ABSTRACT:
An apparatus for expanding tube ends in a tube sheet of a heat exchanger tube bundle comprises a mandrel which can be inserted into the tube end and an expansion pressure generator connected to said mandrel. A source of filling liquid is also connected to the mandrel to the expansion pressure generator which has a port for the filling liquid selectively blocked by the plunger of the expansion pressure generator so that problems with check valves for the filling can be obviated.

REFERENCES:
patent: 2638748 (1953-05-01), Miller
patent: 2847827 (1958-08-01), Johnson
patent: 4055063 (1977-10-01), Krips et al.
patent: 4161187 (1979-07-01), Bauer
patent: 4211151 (1980-07-01), Wallischeck
Podhorsky and Krips, "Hydraulishes Aufweiten Von Rohren", 1/1979.
Maschinenbau, "Hydraulische Rohrbefestigung".

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