Thick matter pump comprising a conveyance capacity control...

Details Thick matter pump comprising a conveyance capacity control... Thick matter pump comprising a conveyance capacity control...

2008-01-29

2008-01-29

Stashick, Anthony D. (Department: 3746)

Pumps

Motor driven

Fluid motor

C417S401000, C417S403000, C417S900000

Reexamination Certificate

active

07322802

ABSTRACT:
A thick matter pump comprising a drive motor (50), a (reversible) hydraulic pump (6), and two hydraulic cylinders (5, 5′) coupled to conveyor cylinders (7, 7′) for conveying the thick matter. A regulator regulates the rotational speed N of the drive motor (50), and a regulating clement (18, 20) regulates the displacement volume V of the hydraulic pump (6). A control module (54) regulates the rotational speed N of the motor and the displacement volume V. For improved operational ease and reduction of fuel requirements, noise and waste gas emission, the control module (54) comprises a final control element (56) for regulating the conveyance capacity of the conveyor cylinders (7, 7′), and an electronic control unit (108) which reacts to the position of the final control element (56) and allocates a nominal value to the rotational speed regulator and to the displacement volume regulator (20), in a software-assisted manner.

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patent: 195 42 258 (1997-05-01), None
patent: 196 35 200 (1998-03-01), None
patent: 0 493 596 (1992-07-01), None

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