Piston engine mechanical performance test bench

Abstract

The invention discloses a mechanical performance testing table for a piston engine. The mechanical performance testing table for the piston engine includes a rack, a shaft and sensors used for testing thrust and torque respectively. Two ends of the shaft are installed together with slide bearings arranged on the rack fixedly. An end part of the shaft is fixedly provided with an installation flange connected with the engine and a propeller assembly. The shaft is fixedly provided with an arm of force that is perpendicular to the axis of the shaft. The torque sensor is arranged between the arm of force and the rack and is perpendicular to the axial of the shaft spatially. The thrust sensor is arranged between the shaft and the rack and along the axis of the shaft. The mechanical performance testing table for the piston engine provided by the invention can be used for conducting comprehensive mechanical performance tests for the piston engine, thereby providing test data for development of engines, model selection and matching of propellers and design of planes. By utilizing the mechanical performance testing table for the piston engine that is diversified in functions, low in cost, simple in structure and high in testing precision for conducting reliability tests of the engine, man power consumption, material input and cost are reduced and efficiency of piston engine research and development is improved substantially.

Description

technical field [0001] The invention relates to an engine test bench, in particular to a mechanical performance test bench of an aviation piston engine. Background technique [0002] As the core component of the aircraft, the engine plays a vital role in the performance of the aircraft, so the performance parameters of the engine directly affect the performance of the aircraft. Piston engines are currently mainly used in sports small aircraft, trainer aircraft, administrative aircraft, drones and other fields. With China's low-altitude opening up, my country's general aviation is on the rise. At the end of 2007, there were about 800 general aviation aircraft in China, about 800 in the United States. 1 / 300, according to the forecast of civil aviation personnel, by 2020, there will be 10,000 general aviation aircraft in my country, and piston engines will occupy a large proportion in the future general aviation market, and their performance testing has also attracted much atten...

AI Technical Summary

Problems solved by technology

In the Chinese invention patent application with the application number "201110076531.5" and the publication number "CN102156046A", a test device called "model airplane engine test system" is provided to test the performance of the miniature airplane model engine, only through L-shaped force transmission Connect the engine and the pressure sensor to detect its thrust, the test system is relatively simple, the test is not comprehensive enough, and the structure is simple, the test result is not accurate, and the test function is insufficient

Images