| 摘要 |
<p>PURPOSE:To reduce the cost of equipment and to accomplish energy-saving by providing a hydraulic circuit with a hydraulic converter for converting pressure and with a low-pressure large-capacity accumulator. CONSTITUTION:A hydraulic circuit is provided with hydraulic converters 5a, 5b for converting pressure, which respectively comprise hydraulic motors 6a, 6b and hydraulic pumps 7a, 7b, and with a low-pressure large-capacity accumulator 2. In this arrangement, actuators 4a, 4b different in working pressure can be driven by one oil pressure source to reduce the cost of equipment. Furthermore, surplus oil is not idly thrown away through a relief valve or the like, so that energy saving is accomplished.</p> |
