Patent ID: 8925517
Filing Date: 2015-01-06
Classification: B23Q,B25C,F01B,F01L,F02B,Y02T

Abstract:
1. An integrated valving and combustion control system for a gas-powered hand tool having a positive displacement device for accomplishing work, comprising: a combustion chamber having a-pre-combustion chamber and a main combustion chamber; an intake valve for regulating flows into the pre-combustion chamber when said intake valve is moved between open and closed positions; a control valve for permitting limited flows between the pre-combustion chamber and the main combustion chamber when said control valve is moved between first and second positions; an exhaust valve for regulating flows out of the main combustion chamber when said exhaust valve is moved between open and closed positions; and a tie rod mechanically interconnecting the intake and exhaust valves and movable together with said intake and exhaust valves in a first direction along a common axis for opening said intake and exhaust valves, and movable together with said intake and exhaust valves in a second opposite direction along said common axis for closing said intake and exhaust valves.