Test method for detecting high-altitude accelerated fuel supply characteristic of main fuel regulator

Abstract

The invention discloses a test method, particularly discloses a test method for detecting the high-altitude accelerated fuel supply characteristic of a main fuel regulator, and belongs to the technical field of aero-engine performance test processes. The test method for detecting the high-altitude accelerated fuel supply characteristic of the main fuel regulator can be used for testing and checking the rotating speed follow-up performance of a push accelerator of an aero-engine. The test method at least comprises the following steps of test standard parameter setting, test scene simulation according to test parameters and environment requirements and test detection. The test standard parameters should comprise the lowest air slow rotating speed, the air pressure after the seventh group of the high-pressure compressor of the aero-engine and the oil gas coefficient under the conditions of the same rotating speed and different air inlet temperatures when being set; and when the test scene simulation is carried out, temperature instruction oil pressure setting is carried out at least when the air inlet temperatures of the engine are 15 DEG C, -0 DEG C, -20 DEG C and -30 DEG C respectively in the flight of the aircraft.

Description

technical field [0001] The invention relates to a test method, in particular to a test method for detecting high-altitude acceleration fuel supply characteristics of a main fuel regulator, and belongs to the technical field of aero-engine performance test technology. Background technique [0002] The failure to follow the speed of the throttle is one of the more harmful faults for single-engine aircraft. The main performance is that the engine speed cannot follow the throttle stick, and most of them are characterized by continuous drop in speed. Sometimes the engine stops in the air, and even the serious flight-level accident of the plane crash. [0003] At present, no matter whether the imported or domestic third-generation aircraft is being repaired, the characteristics of the main fuel regulator's high-altitude acceleration fuel supply have not been inspected, and there is no inspection standard for this aspect. The degree of contribution has not yet been carried out at ...

AI Technical Summary

Problems solved by technology

[0002] The failure to follow the speed of the throttle is one of the more harmful faults for single-engine aircraft. The main performance is that the engine speed cannot follow the throttle stick, and most of them are characterized by continuous drop in speed. When the engine stops in the air, or even the aircraft crashes, there are serious flight-level accidents

[0003] At present, no matter whether the imported or domestic third-generation machine equipment is being repaired, the characteristics of the main fuel regulator's high-altitude acceleration fuel supply have not been inspected, and there is no inspection standard for this aspect, and the high-altitude acceleration fuel supply characteristics have a problem with the speed of the push throttle. The degree of contribution has not yet been carried out at home and abroad.

Images