Non-circular rotary component
US8042507B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 2008 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Jun 6, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19884
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotary component with a rotor having a plurality of teeth arranged around the perimeter of the rotor. Each tooth has a crown and each pair of adjacent teeth has a valley therebetween. The crowns of the teeth lie on a curved envelope forming the perimeter of the rotor. The perimeter of the rotor has a non-circular profile with at least two protruding portions alternating with receding portions, in which the distance between the midpoints of the crowns of each pair of adjacent teeth is substantially the same, the profile of the valley between each pair of adjacent teeth is substantially the same, and the distance between the midpoint of each crown and the axis of the rotor varies around the perimeter to produce the said non-circular profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.