Lobe Pump - Design for manufacturing
INTRODUCTION
- A lobe pump, or rotary lobe pump, is a type of positive displacement pump. It is like a gear pump except the lobes are designed to almost meet, rather than continuously mesh with each other.
- Lobe contact is prevented by external timing gears located in the gearbox.
- Pump shaft support bearings are located inside the casing, and since the bearings are out of the pumped liquid, pressure is limited by bearing location and shaft deflection which reduces the noise levels of this pump.
Function of the pump
1. The volume at the inlet increases when the rotors rotate, and the product is aspirated into the pump.
2. The liquid is transported between rotor and casing (chamber) through the pump.
3. The volume is reduced between the rotors and the fluid is forced out through the outlet.
Draft Design
Technical Specifications
- Overall size, L x B x H = 9" x 7.2" x 7.8".
- Volumetric flowrate, Q = 1.946 gallons/min. at 100 rpm at STP.
- Weight, W = 41.3 lbs. (approx.)
- Operating pressure, P = 100 psi.
- Clearance between rotors, c = 0.02".
Project Timeline
MECHANICAL DESIGN
TECHNICAL DRAWINGS
THE MANUFACTURING
Unfortunately, I couldn't capture the finished pump assembly because we had to wrap up the project quickly at the end to meet the deadline. However, it was an amazing experience to witness the entire product lifecycle, from a sketch to a working product.
Thank you.
