Dislodging a throttle plate from ice formation
US6641111B2 · kind B2 · utility
7Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Jan 24, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2009/0284
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A servo motor operated rotary air throttle has a driving member connected to the throttle shaft. The motor rotor is connected to the driving member in a lost motion connection. If the throttle is lodged due to ice formation, the motor rotor acquires rotary momentum relative to the driving member during the lost motion rotation and a projection on the rotor impacts the end of a slot in the driving member to impart a momentum pulse to the driving member and throttle shaft and dislodge the throttle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.