| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an orifice structure for a hydraulic circuit providing average delivery pressure of a piston pump to a power control regulator. <P>SOLUTION: This invented orifice structure for the hydraulic circuit is provided with a first, a second signal compressed flow paths 46, 48 and a third signal compressed flow path 50 communicating with each main flow path respectively in a sub flow path, is provided with orifices 52, 54 in the first and the second signal compressed flow paths is provide with a guide 87 introducing working fluid discharged from each orifice to the third signal compressed flow path, in the hydraulic circuit provided with the sub flow path, a first and a second main flow paths 20, 22 supplying working fluid discharged from a twin piston pump 10 to a spool of a regulator 40. <P>COPYRIGHT: (C)2009,JPO&INPIT |
