| 摘要 |
<p>[PROBLEMS] Provided are an electric signal input-type capacity control device with the use of which the number of pieces of piping to be placed in a hydraulic device can be reduced, and a hydraulic facility with the capacity control device. [MEANS FOR SOLVING PROBLEMS] A pump facility (20) has two pump units (22, 23), and electric regulators (80, 81) are provided at the pump units (22, 23). In each electric regulator (81, 82), drive oil is supplied to an input port and a proportional solenoid valve (86) switches over the condition of supply of the drive oil to a pilot piston (85). The pilot piston (85) operates a servo switchover valve according to the condition of supply of the supplied drive oil and control the condition of supply of mechanism drive oil supplied to serve mechanisms. A servo mechanism (25, 26) changes the capacity of each pump (22, 23) depending on the condition of supply of the mechanism drive oil. A drive oil passage (110) is formed in each electric regulator (80, 81), and the passage connects the input port to a passage extending between the pump units (22, 23).</p> |
