Motor oder Pumpe

摘要

In a fluid operated device, a novel timing system which is formed by a fixed hollow mandrel mounted in a working cylinder with a timing sleeve and a piston mounted on the mandrel and within the cylinder. Compressed fluid is fed axially through the mandrel and through radial ports therein, which ports are selectively opened and closed by the timing sleeve sliding on the mandrel. The timing sleeve is provided with catches acting on corresponding catches on the piston to move the timing sleeve in response to piston movement.