Pump impeller

FIG. 1 is the impeller viewed obliquely from above.

FIG. 2 is the impeller viewed obliquely from below.

FIG. 3 is the impeller viewed from front.

FIG. 4 is the impeller viewed from back.

FIG. 5 is the impeller viewed from right.

FIG. 6 is the impeller viewed from left.

FIG. 7 is the impeller viewed from above.

FIG. 8 is the impeller viewed from below.

FIG. 9 is a cross section taken along the line 9 — 9 of FIG. 7 .

FIG. 10 is a cross section taken along the line 10 — 10 of FIG. 7 .

FIG. 11 is a cross section taken along the line 11 — 11 of FIG. 7 .

FIG. 12 is a cross section taken along the line 12 — 12 of FIG. 7 .

FIG. 13 is the impeller without a lid, viewed from above.

FIG. 14 is a modified impeller, viewed obliquely from above.

FIG. 15 is the modified impeller, viewed obliquely from below.

FIG. 16 is the modified impeller, viewed from front.

FIG. 17 is the modified impeller, viewed from back.

FIG. 18 is the modified impeller, viewed from right.

FIG. 19 is the modified impeller, viewed from left.

FIG. 20 is the modified impeller, viewed from above.

FIG. 21 is the modified impeller, viewed from below.

FIG. 22 is a cross section taken along the line 22 — 22 of FIG. 20 .

FIG. 23 is a cross section taken along the line 23 — 23 of FIG. 20 .

FIG. 24 is a cross section taken along the line 24 — 24 of FIG. 20 ; and,

FIG. 25 is a cross section taken along the line 25 — 25 of FIG. 20 .

The impeller is provided in a pump, and draws in liquid through an inlet in the bottom shown in FIG. 2 . The liquid passes through the flow path formed inside the impeller shown in the cross sections of FIGS. 9–12 . The impeller has a hollow part opening at the top of the impeller body shown in FIG. 13 and a lid screwed to the top to close the hollow part.