| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce hysteresis caused in control characteristics of a servo regulator. <P>SOLUTION: In the servo regulator 20, a servo piston 30 moves in both directions from a neutral position in regard to an axial direction, and it is equipped with a cylindrical spring box 80 provided away from a casing 25, a feedback spring 44 interposed in the spring box 80 in a pre-compressed state and between first and second control spools 40, 50, first and second rear springs 48, 58 energizing the first and second control spools 40, 50 against each other, and a feedback link 90 transmitting movement of the servo piston 30 to the spring box 80. It is composed such that the first and second control spools 40, 50 are moved to a balancing position of energizing force of the feedback spring 44, energizing force of the first and second rear springs 48, 58, and thrust of first and second proportional solenoids 2, 3. <P>COPYRIGHT: (C)2010,JPO&INPIT |
