JPS6249686U

JPS6249686U -

Info

Publication number: JPS6249686U
Application number: JP14065985U
Authority: JP
Priority date: 1985-09-17
Filing date: 1985-09-17
Publication date: 1987-03-27

Description

[Brief explanation of drawings]

第１図は本考案に係わる円周流ポンプの一実施
例を示す断面図、第２図は同上のポンプにおける
インペラの構造を示す図で、Ａは全体斜視図、Ｂ
は部分拡大斜視図、第３図及び第４図は実験特性
図、第５図は従来の円周流ポンプの一例を示す断
面図である。１１……ポンプ部、１２……電動モータ、１９
……吸入口、２０……ポンプハウジング、２１…
…ポンプ室、２２……インペラ、２３……溝、２
４……燃料圧送間隙、ｂ１……溝の深さ、ｂ２…
…溝の高さ。 FIG. 1 is a sectional view showing an embodiment of the circumferential flow pump according to the present invention, and FIG. 2 is a view showing the structure of the impeller in the same pump, where A is an overall perspective view and B
3 is a partially enlarged perspective view, FIGS. 3 and 4 are experimental characteristic diagrams, and FIG. 5 is a sectional view showing an example of a conventional circumferential flow pump. 11... Pump section, 12... Electric motor, 19
...Suction port, 20...Pump housing, 21...
...Pump chamber, 22... Impeller, 23... Groove, 2
4... Fuel pumping gap, b1... Groove depth, b2...
...Groove height.

Claims

[Scope of utility model registration request]

A pump chamber in a pump housing having an inlet and a discharge port is equipped with an impeller that is rotationally driven by an electric motor, and as the impeller rotates, the liquid sucked from the inlet is transferred between the front and back sides of the impeller. A circumference configured such that liquid is pumped to the discharge port through a pumping gap formed between the circumferential wall of the pump chamber and the outer circumferential wall of the impeller by the rotational force of a plurality of grooves formed on the periphery of the pump chamber. In the flow pump, the depth of the groove of the impeller is b1, and the height of the groove is b
A circumferential flow pump characterized in that b1/b2 is set to be 0.6 or more when 2.