Pump for thick matter having delivery cylinders, in particular a

Details Pump for thick matter having delivery cylinders, in particular a Pump for thick matter having delivery cylinders, in particular a

1993-03-24

1995-01-10

Bertsch, Richard A.

Pumps

Expansible chamber type

Mechanically actuated distributor

417900, 417532, F04B 1502

Patent

active

053801741

ABSTRACT:
In a pump for thick matter with delivery cylinders (1, 2), in particular a two-cylinder concrete pump, which in order to control the flow of thick matter, incorporates a distributing regulator (11) that is connected permanently at an outlet opening (8) with the pump-side end (9) of a delivery line (7) and which incorporates at least one inlet opening (12) where it is sealed on the web (29) between the thick-matter flow passage openings (16, 17) from the delivery cylinders into a supply tank (6), the thick-matter flow passage openings (16, 17) and the inlet opening (12) of the distributing regulator (11) being of identical outline and area, the distributing regulator (11) connecting adjacent thick matter flow passage openings (16, 17) alternately with the delivery line (7) and the supply tank (6) by a rotating movement, the present invention provides for the fact that the thick-matter flow passage openings (16, 17) together with their associated delivery cylinder openings (22, 23) are each connected through a standoff pipe (24, 25), and the inside diameters of the flow passage openings (16, 17) that are formed by the standoff pipes (24, 25) are reduced on the web (29), the reduction in the diameter in the distributing regulator inlet opening (12) being matched to the web (29) (FIG. 1).

REFERENCES:
patent: 3920357 (1975-11-01), Taylor
patent: 4057373 (1977-11-01), Schwing
patent: 4178142 (1979-12-01), Schwing
patent: 4343598 (1982-08-01), Schwing et al.
patent: 4373875 (1983-02-01), Schwing
patent: 4563135 (1986-01-01), Riker
patent: 4653990 (1987-03-01), Schlecht

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