| 摘要 |
The supply of pressure medium to one or the other side of a piston (1) in a cylinder (4) is controlled by an alternating valve (5) reversible between its end positions. In the cylinder wall are two outlet holes (11,14), one of which is freed in the one end position of the piston, and the other is liberated in the other piston end position. - The pressure medium is conducted to one end of the alternating valve which reverses as soon as the pistons reaches one of its end locations.(1) |
