PUMP Russian patent published in 2004 - IPC

FIELD: sanitary equipment.

SUBSTANCE: invention can be used for handling sewage waters. Proposed pump has housing with cavity in rear wall and working wheel with disk and blades fitted in cavity. Inlet branch pipe is installed with clearance relative to wheel blades equal to width of housing. Cavity is made in form of solid or revolution on base of combination of rectangles and radius with sizes proportional to sizes of pump components, and axis of rotation coinciding with axis of working wheel rotation. Sizes of pump components are in definite relations depending on maximum sizes of solid inclusions in handled medium. Outlet branch pipe is connected to upper point of housing. Working wheel is furnished additionally with peripheral blades of reduced length.

EFFECT: prevention of choking, provision of stable operation and reduced overall dimensions of pump.

2 cl, 6 dwg