发明名称 Proportional pressure control valve for controlling the pressure level in a hydraulic circuit
摘要 A proportional pressure control valve ( 1 ) for controlling the pressure level in a hydraulic circuit having a push rod ( 5 ) as a connection between a control element ( 13 ) arranged in the hydraulic circuit and a proportional magnet located in a housing ( 10 ), which comprises a magnetic core ( 2 ), a magnetic anchor ( 3 ), and a magnetic coil ( 4 ), the magnetic coil ( 4 ) and the magnetic core ( 2 ) are securely connected to the housing ( 10 ), and the magnetic anchor ( 3 ) can be moved axially back and forth between two end positions by means of a magnetic force. At least one part of the magnetic anchor ( 3, 3'' ) is arranged so as to be movable relative to the anchor rod ( 6 ) in dependence upon the magnetic flow, so that in this way either the gaps ( 11, 14 ) are enlarged and/or an additional second gap ( 8 ) is produced.
申请公布号 US6989729(B2) 申请公布日期 2006.01.24
申请号 US20030688336 申请日期 2003.10.17
申请人 ZF FRIEDRICHSHAFEN AG 发明人 MAYR KARLHEINZ;SCHMIDT THILO
分类号 H01F7/08;G05D16/20 主分类号 H01F7/08
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