F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
103/17
F04D 3/02 (2006.01) F04D 29/22 (2006.01)
Patent
CA 1141232
"VANE PUMP" ABSTRACT A vane pump is disclosed. The pump comprises a housing in which are installed with a radial clearance an axial-flow suction wheel and an axial- -flow impeller wheel, which wheels are mounted on a common drive shaft one after the other in the direction of flow. The inside diameter of the pump housing in the zone of the suction wheel decreases in the direction of flow. The inside diameter of the pump housing at the entry to the sucti on wheel is cal- culated from the formula: Image The suction wheel comprises a hub with helical vanes at- tached thereto. The vane setting angle increases in the direc- tion of flow and at the entry to the suction wheel it is: Image where D0 = inside diameter of the pump housing at the entry to the suction wheel; D1 = inside diameter of the pump housing at the entry to the impeller wheel; D1 = dimensionless coefficient of 0.17 to 0.13; Ck = predetermined cavitation critical speed coeffi- cient of 5.000 to 11.000; .DELTA. = radial clearance. Figure 1.
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Kalashnikov Leonid F.
Leontiev Nikolai I.
Polyakov Vladimir E.
Shapiro Anatoly S.
Steblevsky Anatoly A.
Kalashnikov Leonid F.
Leontiev Nikolai I.
Polyakov Vladimir E.
Shapiro Anatoly S.
Steblevsky Anatoly A.
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