| 摘要 |
The invention relates to a method for transforming the pressures of a system operating with pressure medium to optimise the travel speeds and/or forces of tasks utilising pressure, area and flow ratios, employing valve structures and other components known as such, in which method, transforming with one or more pressure transformers (4) the pressure of one or more actuators (1) to differ from system pressure. Furthermore, the invention relates to a device implementing the method which includes valve structures and other components as well as one or more pressure transformers (4). In the method according to the invention, one or more pressure transformers are switched on or off when going above or below a set limit value controlling valves (5, 6, 7, 8) for a travel portion of one or more actuators (1) which requires the transformation of travel speed or force. In the device according to the invention, one or more pressure transformers (4) are arranged to be switched on or off when going above or below a set limit value controlling the valves (5, 6, 7, 8) for that travel portion of the actuator (1) which requires higher travel speed or force. |
