04087209 is referenced by 13 patents and cites 11 patents.

Displacement slurry pump equipped with known piston-rod drive, in which on a piston rod expediently three pistons are arranged at a distance of at least one stroke length, they are a liquid piston moving the auxiliary liquid free of solid matter, and on both sides thereof a slurry piston each moving on one side the slurry, on the other side, however, the auxiliary liquid. The liquid piston fits sealed to the liquid cylinder provided with liquid suction valves, whereas the two slurry pistons fit by slot to the slurry cylinders provided with slurry suction valves and slurry delivery valves. The effective section of the liquid cylinder is larger than the effective section of a slurry cylinder each. The slurry pump may be of single-operation or of double-operation, of one-cylinder or two-cylinder or three-cylinder construction.

During the operation, at the delivery stroke of the slurry cylinder, auxiliary liquid is pressed from the liquid cylinder through the aperture between the slurry cylinder and slurry piston, preventing thus the slurry from flowing in between the slurry piston and the slurry cylinder, thus the life of these latters will increase.

Title
Displacement slurry pump
Application Number
5/637849
Publication Number
4087209
Application Date
December 5, 1975
Publication Date
May 2, 1978
Inventor
Janos Steiner
Budapest
HU
Mihaly Marton
Budapest
HU
Laszlo Mahig
Budapest
HU
Assignee
Aluterv Aluminiumipari Tervezo Vallalat
HU
IPC
F04B 39/00
F04B 3/00
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