|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/62565 ; 137/6252 ; 137/62527 ; 137/62544|
|발명자 / 주소|
|인용정보||피인용 횟수 : 17 인용 특허 : 0|
A hydraulic servovalve is controlled electrically through electromagnetic means. Electrical currents applied to force motors determine the relative position of a single, displaceable control assembly within the valve. Displacive movement of the control assembly changes, in reciprocal proportion, the inlet and outlet flow-metering clearances in each of the chambers of this open-passage type valve. The position of the control assembly determines the inlet and outlet flows within, and, therefore, the net flow through, each chamber. Moreover, since the chamb...
A balanced, pressure-compensated, single-stage hydraulic valve system with interconnected fluid-supply, interconnected fluid-return and distinct fluid-control ports, said hydraulic valve system being responsive to applied signals, and said system comprising: (a) a plurality of chambers, with each said chamber having an inlet port, an outlet port, and a chamber port, each connected thereto; (b) a displaceable control assembly, located largely within and extending between said chambers, and having substantially planar means, within each said chamber, with ...