| 摘要 |
A piston and cylinder actuator is of modular construction and is made of axially aligned actuator cells or units that are able to be joined together end to end and each comprise a cylindrical wall with end walls, a piston and a piston rod. In the case of all single cells, with the possible exception of the cell at the end opposite to the end at which the piston rod is to act on a load, the piston rod projects out from the two sides of the piston and the end walls each have an opening for the piston rod ends so that in the assembled condition of the actuator the piston rods of the individual cells abut each other where the end faces of the cells adjoin each other. The piston driving spaces that in all cases are on the same side of the each piston, may be supplied with driving fluid in parallel by way of ducts running from one end of the actuator to the other and made up of holes in the cylindrical walls of the cells. The connection hole of one of the cells has an outwardly opening port for the supply of driving fluid from an outside connection line. The connection holes of all the cells end at identical position of the end walls of the cells for connection together when the cells are put together.
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