JPH0212097U

JPH0212097U -

Info

Publication number: JPH0212097U
Application number: JP8994088U
Authority: JP
Priority date: 1988-07-08
Filing date: 1988-07-08
Publication date: 1990-01-25

Description

[Brief explanation of the drawing]

第１図は本考案による遠心圧縮機のデイフユー
ザの一例を示す断面図、第２図及び第３図は本考
案の作用を説明するための圧力−流量関係図及び
旋回失速限界流れ角−デイフユーザ半径比関係図
、第４図、第５図及び第６図はそれぞれ第１図、
第２図及び第３図に対応して従来例を示す図、第
７図は流れ角を説明するための図である。１……吸込部、２……インペラ、３……デイフ
ユーザ、３ａ……出口側通路、３ｂ……入口側通
路、４……スクロール、５……入口ガイドベーン
、６，７……固定デイフユーザ壁、８……可動壁
部材、９……駆動手段。 FIG. 1 is a sectional view showing an example of a differential user of a centrifugal compressor according to the present invention, and FIGS. 2 and 3 are pressure-flow relationship diagrams and swirling stall limit flow angle--diff user radius for explaining the action of the present invention. The ratio diagrams, Figures 4, 5 and 6 are respectively similar to Figure 1,
A diagram showing a conventional example corresponding to FIGS. 2 and 3, and FIG. 7 are diagrams for explaining the flow angle. DESCRIPTION OF SYMBOLS 1... Suction part, 2... Impeller, 3... Diff user, 3a... Outlet side passage, 3b... Inlet side passage, 4... Scroll, 5... Inlet guide vane, 6, 7... Fixed differential user wall , 8...Movable wall member, 9...Driving means.

Claims

[Scope of utility model registration request]

One side wall of the outlet side passage in the differential user of the centrifugal compressor is constituted by a movable wall member, and this movable wall member is made retractable than the fixed differential user wall on one side of the inlet side passage of the differential user, and the flow path of the outlet side passage of the differential user is made retractable. A differential user of a centrifugal compressor that is characterized by its ability to increase its width.