JPS58223000A

JPS58223000A - Volute pump

Info

Publication number: JPS58223000A
Application number: JP10479382A
Authority: JP
Inventors: Katsu Mochizuki; 克望月
Original assignee: Iwai Kikai Kogyo Co Ltd
Current assignee: Iwai Kikai Kogyo Co Ltd
Priority date: 1982-06-18
Filing date: 1982-06-18
Publication date: 1983-12-24

Abstract

PURPOSE:To enable the capacity of a pump to be varied without changing the number of revolutions of a pump motor electrically or mechanically by providing variable supplementary blades for increasing and decreasing the effective radius of each blade of an impeller. CONSTITUTION:Each blade 2 of an impeller 1 is provided with a movable supplementary blade 5 which is connected to each blade 2 through a hinge 3 and is swingable to a position (A) in the figure which provides max. diameter or to a position (B) at which the diameter is the min. by means of a push rod 4. Accordingly, the capacity of a pump can be varied without the need for providing any control valve or other devices at an outlet or varying electrically or mechanically the number of revolutions of a pump motor.

Description

【発明の詳細な説明】本発明は出ロＣ二調節弁等を用いたり又は電気的、機械
的（ニボンブ用原動機の回転数を変動させたりすること
なしくニポンプの能力を変動させることができる新規の
うず巻ポンプを提供することを目的とするものであって
１羽根車の各別＠を二同羽根車の有効半径を増減する可
変補助羽根を設（すたことを要旨とするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention allows the capacity of the pump to be varied without using an output C2 control valve or the like, or electrically or mechanically (such as changing the rotational speed of the prime mover for the pump). The purpose is to provide a new centrifugal pump, and the gist is that each impeller is replaced with variable auxiliary vanes that increase or decrease the effective radius of the two impellers. be.

尚、第１図（＝示す実施例は羽根車（１）の各羽根（２
）　４ｍ　？：ンジ部（３）で連結されブツシュロッド
（４）で直径最大の位ＷＬ（図中人の状態）もしくは直
径最小の位置（図中Ｂの状態）１二揺動する可動補助羽
根（５）を設けたものであり、また、第２図および第３図に示す実施例は羽根車（６）
の各羽根（７）にヒンジ部（図示せず）で枢着されブツ
シュロッド（９）で所謂爪出しの状態（直径最大）もし
くは爪かくしの状態（直径最小）となる可動補助羽根ａ
値を取付けたものである。It should be noted that the embodiment shown in FIG.
) 4m? : The movable auxiliary blade (5) connected by the hinge part (3) and swinging by the bushing rod (4) at the maximum diameter position WL (the human state in the figure) or at the minimum diameter position (the state B in the figure). The embodiment shown in Figs. 2 and 3 is equipped with an impeller (6).
A movable auxiliary vane a which is pivotally connected to each vane (7) at a hinge part (not shown) and becomes a so-called claw-extending state (maximum diameter) or a claw-hiding state (minimum diameter) with a bushing rod (9).
It has a value attached to it.

本発明は叙上の如き構成弓二なるので所期の目的を完全
書＝達成できる効果を有するものである。Since the present invention has the above-mentioned configuration, it has the effect of achieving the intended purpose completely.

[Brief explanation of the drawing]

図は本発明うず巻ポンプの実施例を示すものであって、
第１図は全体の斜視図、第２図は別異の実施例の直径最
大時の態様を示す全体の斜視図、第３図は同じく直径最
小時の態様を示す斜視図である。（１）・・・羽根車、（２）・・・羽根、（３）・・会
ヒンジ部、（４）・・・ブツシュロッド、（５）・・・
可動補助羽根、（６）・・・羽根車、（７）・・・羽根
、（９）・・・ブツシュロッド、顛・・・可動補助羽根
。特　許　出　願　人　岩井機械工業株式金社第１図The figure shows an embodiment of the centrifugal pump of the present invention,
FIG. 1 is an overall perspective view, FIG. 2 is an overall perspective view showing another embodiment when the diameter is at its maximum, and FIG. 3 is a perspective view similarly showing an aspect when the diameter is at its minimum. (1)...Impeller, (2)...Blade, (3)...Hinge part, (4)...Butsch rod, (5)...
Movable auxiliary blade, (6)...impeller, (7)...blade, (9)...bush rod, shank...movable auxiliary blade. Patent applicant: Iwai Kikai Kogyo Co., Ltd. Figure 1

Claims

[Claims]

A centrifugal pump characterized in that a variable auxiliary vane is installed to increase or decrease the effective radius of each impeller.