Global Patent Index - EP 0284987 B1

EP 0284987 B1 19910918 - REGULATOR FOR AT LEAST TWO HYDROSTATIC MACHINES LINKED TO A COMMON PRESSURE PIPE

Title (en)

REGULATOR FOR AT LEAST TWO HYDROSTATIC MACHINES LINKED TO A COMMON PRESSURE PIPE

Publication

EP 0284987 B1 19910918 (DE)

Application

EP 88104660 A 19880323

Priority

DE 3711050 A 19870402

Abstract (en)

[origin: EP0284987A2] A regulator for at least two hydrostatic machines (1) linked to a common pressure pipe (3) and having a variable delivery or absorption capacity, in which an adjusting device (5) with a hydraulic adjusting piston (34) and a governor (6) for governing its volumetric setting are allocated to each machine (1), is to be designed in such a way that a hydraulic synchronous operation or parallel operation is obtained while ensuring mutual uniform loading of the machines (1). This is achieved by a control means (25) being allocated to each governor (6), which control means (25) loads the associated governor (6) with a correction signal (XK) which is formed as a function of a control signal (Xactual), essentially linearly dependent upon the respective volumetric setting of the associated machine (1), and a desired value (Xdesired) which is the same for all pumps and is formed as an average value from all control signals (Xactual). <IMAGE>

IPC 1-7

F04B 49/08; G05D 16/18

IPC 8 full level

F04B 49/08 (2006.01); G05D 16/18 (2006.01)

CPC (source: EP US)

F04B 49/08 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB IT SE

DOCDB simple family (publication)

EP 0284987 A2 19881005; EP 0284987 A3 19891227; EP 0284987 B1 19910918; DE 3711050 A1 19881020; DE 3711050 C2 19920213; DE 3864867 D1 19911024

DOCDB simple family (application)

EP 88104660 A 19880323; DE 3711050 A 19870402; DE 3864867 T 19880323