Tyre comprising a Hammer Percussion,A tubular casing; a piston; a drill bit; front and rear Air Chambers; Air Supply; Air Supply Passages; a Feed port; a Valve in the form of aAxially Sliding sleeve; and a method of operation.

摘要

A Pneumatic Hammer Percussion includes passages and Ports for the supply of pneumatic Air where these Passages extend Inward of a plunger and the light is asOciada to Passage.