Pneumatic tool

Abstract

A pneumatic tool comprises a housing, a chamber formed inside the housing, and a pneumatic mechanism and a cylinder disposed inside the chamber. The housing includes a gas inhale channel and a gas exhaust channel respectively interconnecting with the chamber. A ventilation gap is formed between the cylinder and chamber. The cylinder includes a compartment receiving the pneumatic mechanism, a gas inlet hole interconnecting with the compartment and gas inhale channel, and at least one gas outlet hole interconnecting with the compartment and ventilation gap. The pneumatic tool also comprises at least one buffer turbulent channel disposed on at least one of the sides of the cylinder and chamber, which face the ventilation gap. The variation of the cross section area between the ventilation gap and buffer turbulent channel can regulate flowing the speed of the high-pressure and high-speed gas and make it drive the pneumatic mechanism smooth.

Dependencies are inferred from the claim text.