Invention Grant
- Patent Title: Anti-saturation valve assembly for load sensing hydraulic system
- Patent Title (中): 用于负载传感液压系统的抗饱和阀组件
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Application No.: US11658134Application Date: 2005-07-22
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Publication No.: US07866151B2Publication Date: 2011-01-11
- Inventor: Isidoro Livraghi
- Applicant: Isidoro Livraghi
- Applicant Address: US OH Cleveland
- Assignee: Eaton Corporation
- Current Assignee: Eaton Corporation
- Current Assignee Address: US OH Cleveland
- Agent Sonu N. Weaver
- Priority: EP04254369 20040722
- International Application: PCT/IB2005/002507 WO 20050722
- International Announcement: WO2006/011058 WO 20060202
- Main IPC: B62D5/07
- IPC: B62D5/07 ; F15B11/16

Abstract:
An anti-saturation valve assembly (51) for use in a hydraulic system having priority (17) and auxiliary (25) load circuits, the priority circuit providing a priority load signal (19). The anti-saturation valve assembly includes a pressure sensor portion (61) which senses a decrease between pump pressure (23) and the priority load signal (19), and generates a force on a pressure reducing portion (63) to reduce, correspondingly, a pilot pressure (59): The reduced pilot pressure to a pilot valve (35) results in reduced flow to a pilot-operated main control valve (27) in the auxiliary load circuit (25), thus providing anti-saturation protection for the circuit, without throttling a main flow path and wasting substantial hydraulic power.
Public/Granted literature
- US20080245064A1 Anti-Saturation Valve Assembly for Load Sensing Hydraulic System Public/Granted day:2008-10-09
Information query
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