日本機械学會論文集
Online ISSN : 2185-9485
Print ISSN : 0029-0270
円形弁の研究 : 第8報, 弁座面の幅大なる平面座弁の性能
沖 巖川上 幸作
著者情報
ジャーナル フリー

26 巻 (1960) 168 号 p. 1053-1061

詳細
PDFをダウンロード (953K) 発行機関連絡先
抄録

This paper presents the results of experiments on flat-seated valves with broader seat-face, discharging water into the air under a constant head of about 194 cm. Five valves were used in all, of which the first four had diameter d smaller than seat-face diameter d1 and the last one had d equal to d1. When the lift of the valves with d<d1 is gradually increased, the stream flowing out separates partially from the seat-face at a certain valve-lift, and then separates completely from the seat-face at a higher lift and becomes free jet. When the valve is closing the free jet finally clings to the seat-face at a very small valve-lift. These are represented by three special points on the characteristic curve of each valve. In case of the valve with d=d1, there are one separating and one clinging point on the curve, just as the valves with d>d1 on which we have already reported. We try to give some explanations for these phenomena hereunder.

著者関連情報
© 社団法人日本機械学会
前の記事 次の記事
feedback
Top