Servo boosted governor control for engines
US4355610A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1980 |
| Grant date | Oct 26, 1982 |
| Priority date | — |
| Expiry date | Mar 28, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D1/045
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The pedal effort required to change the setting of a governor (13) of an engine increases sharply with increased engine speed. Booster controls have been provided in the art for applying a boost force (F.sub.B), additive to an operator input force (F.sub.L), for opposing the force (F.sub.S) of a governor spring (42) to thus reduce pedal effort at high engine speeds. The improved booster control (15,15a) herein includes an actuating chamber (53,53a) and a control arrangement (51,51a) for controlling fluid pressure in the chamber (53,53a) when the setting of the governor (13) is changed by the operator and in a predetermined ratio to the operator's input force. The booster control (15,15a) has wider application wherein a boosting force (F.sub.B) is desired to supplement an input force (F.sub.L) for controlling movement of a member (23) having an opposing force (F.sub.S) applied thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.