Invention Application
WO2017103079A1 HYDRAULIC VALVE DEVICE WITH MULTIPLE WORKING SECTIONS WITH PUMP CONTROL SYSTEM
审中-公开
带有泵控制系统的多工段的液压阀装置
- Patent Title: HYDRAULIC VALVE DEVICE WITH MULTIPLE WORKING SECTIONS WITH PUMP CONTROL SYSTEM
- Patent Title (中): 带有泵控制系统的多工段的液压阀装置
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Application No.: PCT/EP2016/081392Application Date: 2016-12-16
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Publication No.: WO2017103079A1Publication Date: 2017-06-22
- Inventor: MUSIANI, Massimiliano
- Applicant: WALVOIL S.P.A.
- Applicant Address: Via Adige, 13/D 42124 Reggio Emilia IT
- Assignee: WALVOIL S.P.A.
- Current Assignee: WALVOIL S.P.A.
- Current Assignee Address: Via Adige, 13/D 42124 Reggio Emilia IT
- Agency: BENELLI, Cristian et al.
- Priority: ITUB2015A009570 20151216
- Main IPC: F15B11/042
- IPC: F15B11/042 ; F15B11/044 ; F15B11/05 ; F15B11/16
Abstract:
Modular directional valve with two or more crossing elements (E1.. En) fed by a variable displacement (PA), negative control or load sensing pump. A pressure regulator (5) is placed in the entry side and only on the bypass line and upstream of the first element (E1..En). In the single drive, it makes the flow rate to the utility independent of the load and allows setting a maximum flow rate at the end of the stroke; in multiple drives, it ensures that the sum of the required flow rates is independent of the loads.
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