Burner-based GPF (Gasoline Particulate Filter) rapid ash content accumulation aging test device

Abstract

The invention relates to a burner-based GPF (Gasoline Particulate Filter) rapid ash content accumulation aging test device. The device comprises an oil feed unit for providing engine oil and gasoline,a compressed air unit, a co-flow air unit, a dilution air unit, a burner unit and a GPF unit; the burner unit includes a burner cavity, a spark plug disposed on the burner cavity, a combustion disk disposed at the inlet end of the burner cavity, and an air-assisted atomizing nozzle; the oil feed unit, the compressed air unit, and the co-flow air unit are all communicated with the inlet end of theburner cavity through a pipeline; the rear end of the burner cavity is provided with a mixing cavity; the dilution air unit is communicated with the mixing cavity; and the rear end of the mixing cavity is connected with the GPF unit through a gas exhaust pipeline. With the device of the invention adopted, the rapid ash content accumulation aging process of a GPF can be realized, the research anddevelopment costs of an enterprise can be decreased, the largest engine oil-gasoline oil mixture ratio can be selected with the good atomization combustion of mixed fuel oil ensured, and the rate of the consumption of the engine oil can be greatly increased, and test time can be reduce.

Description

technical field [0001] The invention belongs to the technical field of post-treatment of internal combustion engines, and in particular relates to a burner-based GPF rapid ash accumulation aging test device. Background technique [0002] Energy and the environment are two major challenges facing all mankind. How to actively deal with these two issues has become the focus of social attention. Every country in the world has formulated strict automobile emission and fuel economy regulations to guide gasoline engines to miniaturization, Development in the direction of low emission and no pollution. In-cylinder direct injection gasoline engine is more and more favored by automobile manufacturers because of its better power performance, fuel economy, drivability, emission and other advantages. Unevenness and fuel wet-wall phenomena significantly increase the quality and quantity of particulate emissions. Only optimizing in-cylinder combustion can no longer meet the requirements ...

AI Technical Summary

Problems solved by technology

Particles are continuously trapped and deposited in the carrier. Among them, the oxidizable particles are actively or passively regenerated and oxidized and burned again, but the non-oxidizable ash will continue to be deposited on the GPF, which increases the exhaust back pressure and reduces Improved fuel economy and particulate capture efficiency

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