| 摘要 |
PURPOSE:To reduce the amount of projection of an injector and reduce the air- force resistance by inserting an opening and closing valve for feeding fluid into an injection hole which is opened on the inner peripheral surface of a nozzle, into a manifold, and arranging the valve pieces of said valve in the vicinity of the inner wall of said manifold. CONSTITUTION:A fluid injector 6 is installed in a manifold 3, with the valve chamber part 6a inserted into the mainfold 3. Therefore, valve pieces 9 are arranged in the vicinity of the inner wall of the manifold 3, and the amount of projection of said fluid injector 6 from the outer periphery of a nozzle 1 is reduced by the height of the valve chamber 6a, and the air-force resistance can be reduced, so deterioration of the flying performance can be avoided. As the valve chamber 6a and the manifold 3 are allowed to communicate with each other through an inflow port 7 on the side wall 6b, and injection ports 2 are opened on the inside surface 3b of the manifold on the external peripheral surface side of the nozzle 1, the flow passages for injection fluid can be shortened, and the injection efficiency for injection fluid can be increased. |
