Roots-type blower rotor alignment method and apparatus

Details Roots-type blower rotor alignment method and apparatus Roots-type blower rotor alignment method and apparatus

F - Mech Eng,Light,Heat,Weapons

04

C

F04C 29/00 (2006.01) F04C 18/14 (2006.01)

Patent

CA 2671191

Root-type blowers with helical cycloidal rotors exhibit variation in leakback flow with angular position intrinsic to these rotor geometrics. Calibration of individual blowers using a combination of high-resolution alignment and enhanced detection of residual noise phenomena permits noise in as-produced blowers to be significantly attenuated. Intrinsic lower limits of noise induced by leakback variation are associated with manufacturing tolerances, necessary clearances, and particular geometric considerations. Gross alignment errors (excluding contact between rotors) produce a characteristic noise pulse rate that is three times the shaft rate. Proper alignment suppresses this and reveals a pulse sequence at double this rate and at about half of the amplitude of faulty alignment. The novel process explains the error mechanisms and defines repeatable calibration methods for a mass-production environment, introducing appropriate gauges and methods for the task.

Affiliated with

Also associated with

Rating

Roots-type blower rotor alignment method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Roots-type blower rotor alignment method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roots-type blower rotor alignment method and apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1739442