A turbocharger test bench combustion chamber with a mixing section

Abstract

The invention provides a turbocharger test bench combustion chamber provided with a mixing section. The turbocharger test bench combustion chamber comprises a flame tube, wherein the tail part of theflame tube is provided with a flame tube flange, the flame tube is sleeved and connected with a casing tube, both ends of the casing tube are connected to the flame tube flange and a front flange andare provided with a nozzle and an ignition rod, the ignition rod extends into the flame tube, a spray head of the nozzle is fixed to the head part of the flame tube, the flame tube flange and a rear flange fix a mixer axially, the mixer is fixed by means of a mixing section inner tube radially, a mixing section outer tube is arranged outside the mixing section inner tube, and one side of the mixing section outer tube is provided with an air supply opening. According to the turbocharger test bench combustion chamber provided with the mixing section, the mixing section is additionally arranged at an outlet of the combustion chamber, cold air is introduced into the mixing section, and the adjustment range of temperature at the outlet of the combustion chamber is broadened, thus the adjustmentprecision of temperature and flow of fuel gas at the outlet of the combustion chamber is high, and the stable rotation speed of the turbocharger during the testing process is ensured.

Description

technical field [0001] The invention belongs to the field of electromechanical technology, in particular to a combustion chamber of a turbocharger test bench with a mixing section. Background technique [0002] During the research and development of turbochargers, it is necessary to carry out tests such as compressor performance tests, turbine flow characteristics tests, and turbine efficiency tests. During the test, the speed of the turbocharger needs to be strictly controlled. If the speed of the turbocharger fluctuates greatly, the error of the test result will be large. The conventional turbocharger test bench uses a single-tube combustion chamber. Due to factors such as oil-gas ratio and combustion efficiency, the combustion efficiency of the combustion chamber is low under non-design conditions, and the gas temperature and gas flow at the outlet of the combustion chamber are unstable. This resulted in large fluctuations in the speed of the turbocharger during the test...

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