Two-cylinder thick matter pump having a piston storage

Details Two-cylinder thick matter pump having a piston storage Two-cylinder thick matter pump having a piston storage

1992-11-25

1993-11-23

Bertsch, Richard A.

Pumps

Motor driven

Fluid motor

417540, 417900, F04B 1700

Patent

active

052638286

ABSTRACT:
The invention relates to a two-cylinder thick matter pump having a piston storage which is filled during the thick matter feed with the feed cylinders and evacuated by the hydrocontrolled storage piston into the feed pipe between the strokes of the feed pistons to reduce the pressure drop and the undelivered amount in the feed pipe. The inventive proposal is that the hydrocontrol of the storage piston (10) is served by a working piston (8) to be acted upon hydraulically on both sides, that is controlled with the feed cylinders and whose limits of travel, with the limits of travel of the storage piston (10), are fixed on the storage driving cylinder (7) when the storage cylinder (4) is fully evacuated and is filled.

REFERENCES:
patent: 3663129 (1972-05-01), Antosh
patent: 3963385 (1976-06-01), Caban
patent: 4611973 (1986-09-01), Birdwell

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