| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust valve which summarizes two functions in a constant speed exhaust valve and reduces in size and can block an orifice by small force. SOLUTION: An exhaust valve 13 is provided with a structure blocking an orifice 122 communicating to the air duct at the head of a plunger 106. A recess 111 is formed at the head face of the plunger 106. An elastic section member 112 is stretched on this recess 111. An end face of the orifice 122 is projected at the position facing to this elastic section member 112, and the elastic section member 112 extending to the depth direction of the recess receives a projecting part of the orifice 123 and blocks the orifice. |
