Global Patent Index - EP 1101939 A3

EP 1101939 A3 20030108 - Multicylinder piston pump

Title (en)

Multicylinder piston pump

Title (de)

Mehrzylindrige Kolbenpumpe

Title (fr)

Pompe à piston avec plusieurs cylindres

Publication

EP 1101939 A3 20030108 (DE)

Application

EP 00124637 A 20001110

Priority

DE 19955778 A 19991119

Abstract (en)

[origin: EP1101939A2] The piston pump (3) includes a number of preferably homogeneous butt-cylinder units (30), in whose cylinders (31) respectively one associated displacement butt (32) is led, and a gearing arrangement (34, 35) which converts the rotation of a common drive shaft (33) to a periodic oscillating translational lift movement of the butts in the respective cylinders. Each butt executes at least one full period of its oscillation per 360 degree rotation of the drive shaft, whereby the oscillation is composed of a suction interval, in which the butt executes a lift in a first direction for taking in the fluid in the corresponding cylinder, and a pump interval, in which the butt executes a lift in the opposite direction, for pressing the fluid out of the cylinder. The oscillations of the butts are equal to each other, and are displaced with respect to phase. The gearing arrangement is formed in such way, that the pump interval of each butt covers a larger part than the suction interval, with such ratio, that inhomogenities in the temporal course of the total conveyed current are smaller than at equal pump- and suction intervals.

IPC 1-7

F04B 1/04; F04B 11/00

IPC 8 full level

F04B 1/04 (2006.01); F04B 11/00 (2006.01)

CPC (source: EP)

F04B 1/0413 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

EP 1101939 A2 20010523; EP 1101939 A3 20030108; EP 1101939 B1 20041006; DE 19955778 A1 20010613; DE 50008084 D1 20041111

DOCDB simple family (application)

EP 00124637 A 20001110; DE 19955778 A 19991119; DE 50008084 T 20001110