| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a piston pump/motor of a variable displacement type, which is suitable for use as an oil pressure generating device for a machine press, etc., in a structurally simple and compact state. SOLUTION: This piston pump/motor of a variable displacement type has such characteristics that a flywheel and the rotary shaft of a pump device are coaxially positioned.</p> |
