| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce pulsation of operating fluid delivered from a hydraulic pressure pump in a transient period until pressure in an operating fluid chamber exceeds a set pressure in a hydraulic circuit employing an accumulator operating when pressure in the operating fluid chamber is at the set pressure or higher. <P>SOLUTION: In a hydraulic circuit including an accumulator A1 provided with a flow in passage Si making an operating fluid delivered from the hydraulic pump flow in a operating fluid chamber R2 and a flow out passage So making the operating fluid flow out from the operating fluid chamber R2 to a hydraulic actuator, an accumulator which operates when pressure in the operating fluid chamber R2 is the set pressure or more is adopted as the accumulator A1, and a vale mechanism Vo restricting supply of operating fluid to the hydraulic actuator when pressure in the operating liquid chamber R2 is lower than the set pressure and releasing supply restriction of the operating fluid to the hydraulic actuator when pressure in the operating fluid chamber R2 is at the set pressure or higher. <P>COPYRIGHT: (C)2004,JPO</p> |
