| 摘要 |
The invention relates to a switch device (1) which sequentially conducts one hydraulic fluid stream (2) to two or more independently operated hydraulic units, where the switch device (1) with one or more channel throughputs (11, 12, 13 and 14) travels helically in a holding cylinder and transfers pressure streams in rotational sequence via fixed channels (8 and 8') in the holding cylinder to separately operated hydraulic devices. With activation and deactivation in succession with alternate pressure and pressure relief combined with corresponding spring device (4), the switch device (1) in the surrounding cylinder is simultaneously forced to perform a one-way helical and axial forward and backward movement, resulting in altered fluid communication. Full switch rotation is achieved with, for example, six equiangular waves, each at 60 DEG , or with six different angular waves, such as 90 DEG + 60 DEG + 45 DEG + 60 DEG + 60 DEG + 45 DEG . |
