Pump for conveying cement
AssigneeFriedrich Wilhelm Schwing GmbH
InventorFriedrich Schwing
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Abstract
A pump for conveying cement comprises two pump cylinders and reciprocating pistons, an input container, a multi-limb oscillating shutter valve arranged in front of the pump cylinders and below the input container, the housing of the valve including a suction connection leading from the input container, two ports connected to the pump cylinders respectively, and an outlet located in the end wall of the housing. Two inlet ports are provided in the housing for placing the suction connection in communication with the ports connected to the pump cylinders respectively. The oscillating shutter is mounted on a horizontal shaft to be movable between two positions, and includes two control limbs, each controlling a different one of said inlet ports, and an outlet control limb the forward edge of which passes over and controls said outlet.
Claims4
A reciprocating piston pump for conveying cement comprising two pump cylinders;
- an input container;
- a multi-limb oscillating shutter valve mounted on a horizontal shaft and arranged in front of the pump cylinders and below the input container;
- a housing for the oscillating shutter valve, said housing having an end wall, at least two ports and a suction connection in the housing leading from the input container, said at least two ports in the housing connected to the pump cylinders respectively;
- an outlet located in the end wall of the housing;
- and two inlet ports in the housing for placing said suction connection in communication with said ports connected to the pump cylinders respectively;
- said oscillating shutter being movable between two positions and including two inlet control limbs each controlling a different one of said inlet ports and an outlet control limb the forward edge of which passes over and controls said outlet.
Dependencies are inferred from the claim text.