Rolling diaphragm seal arrangement for a submersible pump system

Details Rolling diaphragm seal arrangement for a submersible pump system Rolling diaphragm seal arrangement for a submersible pump system

1995-12-12

1998-03-10

Freay, Charles G.

Pumps

Expansible chamber type

Valved piston

417545, 92 98D, F04B 5312

Patent

active

057253650

ABSTRACT:
A submersible pump cylinder (10; 110) for immersion in and displacement of a fluid (W), including a cylindrical housing (20; 120), a plunger assembly (45; 145) positioned for reciprocating motion within the cylindrical housing, a sealing sleeve assembly (85; 185) attached to the cylindrical housing and to the plunger assembly and overlapped to maintain a convolution (90; 190; 190') which moves during the reciprocating motion of said plunger assembly, and a balance valve (55) associated with the plunger assembly maintaining pressure within the flexible sleeve, whereby the flexible sleeve is maintained in engagement with the housing and the plunger assembly and substantially without frictional interengagement during motion of the plunger assembly.

REFERENCES:
patent: 3327633 (1967-06-01), Duinker et al.
patent: 3620652 (1971-11-01), Jaspers et al.
patent: 3673927 (1972-07-01), Fluhr
patent: 3835714 (1974-09-01), Van Der AA et al.
patent: 4024770 (1977-05-01), Liesenborghs
patent: 4036112 (1977-07-01), Hubschmann
patent: 4773305 (1988-09-01), Nissels

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