Title:
HYDRAULIC VALVE ASSEMBLY WITH ELECTRONIC CONTROL OF FLOW RATE
Document Type and Number:
WIPO Patent Application WO/2014/033496
Kind Code:
A1
Abstract:
In this invention, check valves (11), opportunely modified with position transducers(12), are used to sense the flow rate supplied to each consumer. An electronic control device (16) sets the inlet pressure and the opening of the spool in each working section (7) in order to regulate sensed flow as a function of electrical input signals. Unlike previously known load-sensing control systems, no pressure signals have to be managed to supply constant flow rate to one or more consumers regardless of their load pressure
Inventors:
GIBELLINI MATTEO (IT)
Application Number:
PCT/IB2012/054318
Publication Date:
March 06, 2014
Filing Date:
August 25, 2012
Export Citation:
Assignee:
GIBELLINI MATTEO (IT)
International Classes:
F15B11/16; F15B21/08
Foreign References:
| EP0587902A1 | 1994-03-23 | |||
| FR2429417A1 | 1980-01-18 | |||
| US4350050A | 1982-09-21 | |||
| DE19909745A1 | 2000-09-07 | |||
| EP0275968A2 | 1988-07-27 | |||
| EP0680565A1 | 1995-11-08 | |||
| EP1664551A1 | 2006-06-07 |
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