| 摘要 |
PURPOSE:To improve the efficiency in plastic work by allowing the discharged- gas flowing hole on a compressor to be opened into the concaved part of the flange of a lower bearing for the installation of a discharge-valve apparatus and forming a cover to the form to cover the min. range following said concaved form, thus simplifying the shape. CONSTITUTION:A concaved part 21b is formed onto a part of the flange 21a of a lower bearing 21, and a discharge port 21c, valve seat 21d, seat relief 21e, and a tapped hole 21f for tightening the discharge valve and a valve pressing piece are installed into the concaved part 21b. Also a discharge through-hole 21g for introducing the discharged gas into the upper part of compressor body is opened to a part of the concaved part 21b. A cover 22 is formed into the form to cover the min. range following the whole shape of the concaved part 21b formed onto the lower part bearing 21. Therefore, the shape can be simplified, and the efficiency in plastic work is improved, and material can be economized. |
