Rotary Vane Vacuum Pump

A rotary vane vacuum pump can be an oil-sealed rotary displacement pump. The pumping program consists of a casing (1), an eccentrically installed rotor (2), vanes that move radially under spring power (3) and the inlet and wall plug (4). … The Rotor movements with the help of a motor mounted on it.

Uses. Vane pumps are commonly used as high-pressure hydraulic pumps and in automobiles, including supercharging, power-steering, air conditioning and automatic-transmission pumps. Pumps for mid-range pressures consist of applications such as for example carbonators for fountain soft-drink dispensers and espresso coffee machines.

The simplest vane pump has a circular rotor rotating in the bigger circular cavity. The centers of the two circles are offset, leading to eccentricity. … The actions of the vane drives out the same volume of liquid with each rotation. Multistage rotary-vane vacuum pumps can attain pressures only 10 mbar (0.0001 Pa).