Investigation of Unsteady Pressure Pulsation in New Type Dishwasher Pump with Special Double Tongue Volute

Figure 8

Dishwasher pump test system. (1) Impeller, (2) volute, (3) water tank, (4) electromagnetic valve, (5) turbine flowmeter, (6) inflow pipe, (7) outflow pipe, (8) pressure gauge, (9) motor speed controller, (10) data-acquisition system, (11) personal computer, and (12) software interface.