Diaphragm pump with at least one reciprocating piston and balanc

Details Diaphragm pump with at least one reciprocating piston and balanc Diaphragm pump with at least one reciprocating piston and balanc

1997-01-17

1997-11-25

Denion, Thomas E.

Expansible chamber devices

Collapsible chamber wall portion

Wall portion formed of flexible material

74573R, 4174131, 92 96, F01B 1900

Patent

active

056900171

ABSTRACT:
A diaphragm pump 1 has a reciprocating piston 2 operated with the aid of a connecting rod 5 and by this means moves an attached diaphragm 4 fixed in the pump housing 3. The connecting rod 5, in turn, is acted upon and driven at the end facing away from the reciprocating piston 2 by an eccentric 6 or a cranked portion of the drive shaft 11. The rotating masses and at least part of the oscillating masses of the pump are balanced by at least one fixedly mounted counterweight 7 moving in synchronism therewith. For the automatic correction of varying out-of-balance conditions due to variable gas forces or medium forces, a self-regulating system of rolling elements 12 is provided in an annular, empty cavity 9 that is arranged concentrically to the axis of shaft rotation and is situated within a co-rotating housing 10. Arranged in this cavity 9 are rolling elements 12, preferably balls, which are capable of rolling freely on the interior surface 13 of the outer periphery, thus on the radially outermost wall of the cavity 9, and even in case of slight imbalances begin to move until they have reached the position of optimal mass balance.

REFERENCES:
patent: 2331756 (1943-10-01), Zobel
patent: 3109321 (1963-11-01), Rogers
patent: 3166356 (1965-01-01), Sutherland et al.
patent: 3410154 (1968-11-01), Deakin
patent: 3799619 (1974-03-01), LaBarber
patent: 3913980 (1975-10-01), Cobb, Jr.
patent: 4117742 (1978-10-01), Stein
patent: 5592858 (1997-01-01), Taylor

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