| 摘要 |
AIR GUN WITH BAFFLE FOR LIMITING MAXIMUM VELOCITY An air gun includes a valve assembly with a sliding baffle for limiting the maximum velocity and energy which can be provided by the gun. The valve assembly includes a valve body which has a pressure reservoir, and air passage, and a valve seat between the pressure reservoir and the air passage. A valve normally closes the valve seat to hold pressure in the pressure reservoir and is moved away from the valve seat when the gun is fired. A bleed opening in the valve body, connects the air passage to the outside of the valve body, and an exhaust opening connects the air passage to the barrel of the gun. The baffle is slidably mounted in the air passage and is movable between a first position in which the bleed opening is restricted and the exhaust opening is unobstructed and a second position is which the exhaust opening is restricted and the bleed opening is substantially unobstructed. |
