Patent ID: 6116865
Filing Date: 2000-09-12
Classification: F04B,Y10S

Abstract:
Piston pump for thick matter including:at least one hydraulic operated pump cylinder (10, 12) having a pump piston (30);at least one hydraulic drive cylinder (26, 28) having a drive piston (38);at least one common piston rod (34) connecting said pump piston (30) to said drive piston (38);a water box (42) having a top side and a floor side, said water box situated between said pump cylinder (10, 12) and said drive cylinder (26, 28), said piston rod (34) passing through said water box, said water box having an access opening at the top side (44) accessible from above and an access opening at the floor side (54) accessible from below, said water box further including a removable floor plate (52) closing said floor side access opening (54) in a fluid-tight manner, and said water box including a water outlet pipe (66) located at the floor side.