Vane Pump
Vane pumps are positive displacement rotary pumps that use sliding vanes mounted in a rotating rotor to move fluids efficiently. They provide smooth, continuous flow and are well suited for low to medium pressure applications involving clean or lightly contaminated liquids.
Overview
A vane pump is a rotary positive displacement pump in which vanes are mounted in slots within a rotor that rotates inside a pump casing. As the rotor turns, the vanes slide outward to maintain contact with the casing, creating chambers that move fluid from the inlet to the outlet.
Operating Principle
Fluid enters the pump through the inlet as the rotating rotor increases the volume between the vanes. Centrifugal force, hydraulic pressure, or spring mechanisms push the vanes against the casing wall. The trapped fluid is carried around the casing and discharged as the volume between the vanes decreases.
Design Characteristics
- Rotating rotor with sliding vanes
- Van es maintain contact with the casing wall
- Compact and simple construction
- Provides steady and low-pulsation flow
Types of Vane Pumps
- Unbalanced Vane Pumps: Simple design with fixed displacement
- Balanced Vane Pumps: Reduced bearing load and longer service life
Key Advantages
- Smooth and consistent flow
- Good efficiency at low to medium pressures
- Self-priming capability
- Low noise and vibration levels
Applications
- Hydraulic systems
- Fuel transfer and fuel injection systems
- Lubrication systems
- Chemical and process industries
- Automotive and industrial machinery