Method for regulating the flow rate of fuel to a turboshaft engine in acceleration or in deceleration
US7530232B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2005 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Apr 20, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2270/62
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Apparatus for regulating the flow rate of fuel to a turboshaft engine in acceleration or deceleration, the engine having a free turbine and a core engine, the apparatus including sensors transmitting information to regulator elements, the information relating: to a first speed of rotation NTL of the free turbine; to a second speed of rotation Ng of the engine's gas generator; to an internal temperature T4 of the gas at the inlet to the free turbine; to the external pressure; and to the external temperature. The apparatus further includes control elements activated by the regulator to actuate a fuel metering system of the engine. The regulator evaluates the flow rate of fuel to be supplied to the engine in acceleration or deceleration on the basis of at least one optimum regulation relationship, which determines a main modulated flow rate as a function of a modulated speed of rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.