Over-speed control system and method
US9303633B2 · kind B2 · utility
5Cited by
22References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2012 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Sep 28, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/462
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydraulic power control system includes an engine driving a variable displacement pump. The variable displacement pump is fluidly connected to a first passageway and a second passageway, and has a selectively variable displacement that is adjustable in response to a pump displacement command signal. A hydraulic motor fluidly connected to the first and second passageways operates by a flow of hydraulic fluid originating from the pump. A controller receives an engine speed signal and adjusts pump displacement based on the engine speed signal to reduce the rotation speed of the pump when an overrun condition is present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.