Method of dynamic balancing for magnetic levitation molecular pump
US9479035B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 22, 2012 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Jul 17, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49004
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of rotor dynamic balancing for magnetic levitation molecular pump, including the steps of: activating an force free control module after activating a motor of the magnetic levitation molecular pump; if the maximum radial vibration amplitude does not exceed ½ of a protective clearance during the acceleration of the rotor under the control of the force free control module, indicating that the force free control module is able to inhibit the co-frequency vibration of the rotor, so as to allow the rotational speed of said rotor to exceed its rigid critical rotational speed; performing rotor dynamic balancing operation at a high speed by an influence coefficient method. The method of rotor dynamic balancing can directly perform rotor dynamic balancing operation with respect to the rotor at a high-speed, which facilitates the rotor dynamic balancing operation so as to perform the rotor dynamic balancing operation more quickly and efficiently.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.