Add-in device for a hydraulic control arrangement

Details Add-in device for a hydraulic control arrangement Add-in device for a hydraulic control arrangement

1995-11-30

1998-07-14

Michalsky, Gerald A.

Fluid handling

Systems

Supply and exhaust

91 31, 137884, F15B 1308

Patent

active

057789304

ABSTRACT:
An add-in device for a hydraulic control arrangement provides a function unit (24) to be arranged between successive modules, which function unit takes the connection between the pump channels of the preceding and the subsequent module by way of at least one function slide valve (117, 217) which is arranged to be displaced into several positions. In its positions this function slide valve initiates different functions, by which fluid under pressure is arranged to be admitted to the subsequent control module in at least two different amounts and/or in at least two different levels of pressure. In this manner operation of the subsequent control modules can be better matched to the particular operating conditions that obtain.

REFERENCES:
patent: Re31529 (1984-03-01), Lowe
patent: 4330008 (1982-05-01), Skelly

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