Study on Optimization of Pump Shaft Transmission System of Plastic Centrifugal Pump

Table 3

Sectional area of cochlear chamber.

Section number	1	2	3	4	5	6	7	8
Sectional wrap angle: φ0	45	90	135	180	225	270	315	360
Area: Fi	246.11	492.22	738.34	984.45	1230.56	1476.67	1722.78	1968.90