Engine speed control with resume from idle or near idle
US6339741B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2000 |
| Grant date | Jan 15, 2002 |
| Priority date | — |
| Expiry date | Aug 18, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/228
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system and method for controlling engine speed of an internal combustion engine provide automatically returning to a set speed selected with a hand throttle after operating at idle or near idle. The system and method are particularly suited for operation in driving a mud pump used in petroleum drilling applications where the operator dials-in a desired operating speed corresponding to a desired pumping rate. The engine is returned to idle or near idle to allow additional sections of pipe to be added. The engine then automatically returns to the previously selected set speed without additional manipulation of the hand throttle. In one embodiment, dual hand throttles are provided to support remote station operation and control of the engine speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.