Selection of filter rating for lubrication systems.
Abstract:ESDU 83030 enables an appropriate filter to be selected for a lubricant circulation system by estimating the required filter rating or filter stopping power. After describing the features of a typical lubricant circulation system, the various purposes for which filters are incorporated are explained. Filter performance is discussed in terms of the probability of its capturing a percentage of particles of a certain size, and the concept of filter rating and beta ratio explained. The selection procedure, to give a full flow filter that will prevent contaminant particles from damaging components of a machine, is then developed. It establishes a suitable filter rating taking account of expected lubricant film thickness and the surface roughnesses of the opposing surfaces. Worked examples illustrate the use of the procedure and a section discusses practical experience with hydrodynamically-lubricated thrust and journal bearings, rolling bearings, gears, seals and couplings.
|Data Item ESDU 83030|
- Aircraft Noise
- Fatigue - Endurance Data
- Fatigue - Fracture Mechanics
- Fluid Mechanics, Internal Flow
- Fluid Mechanics, Internal Flow (Aerospace)
- Heat Transfer
- Physical Data, Chemical Engineering
- Stress and Strength
- Transonic Aerodynamics
- Vibration and Acoustic Fatigue
- Wind Engineering
Aerospace Materials Data
Additional Engineering References