A device and method for gas motion simulation and optical analysis test in a pre-chamber
A motion simulation and optical analysis technology, applied in chemical analysis by combustion, material analysis by optical means, measurement device, etc., can solve the problems of quantitative test analysis not proposed, and achieve intuitive, easy-to-handle, and applicability of data results. wide effect
Active Publication Date: 2021-06-29
浙江知管通网络科技有限公司
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Problems solved by technology
At present, scholars at home and abroad have only proposed experimental means to study the airflow movement in the pre-combustion chamber during the enriched injection stage, but have not proposed a quantitative test and analysis method for the airflow movement in the pre-combustion chamber during the entire upward phase of the piston (including enriched injection) and the downward phase. means
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Embodiment Construction
[0024] The present invention will be further described below in conjunction with accompanying drawing.
[0025] Such as figure 1 and 2As shown, a gas motion simulation and optical analysis test device in the pre-combustion chamber includes a surge tank 1, a tracer particle generator 2, a tracer particle intake valve 3, an air intake valve 4, and a mixing container exhaust valve 5. Mixing container 6, pre-combustion chamber injection valve 7, main combustion chamber exhaust valve 9, main combustion chamber intake valve 10, main combustion chamber 11, piston 12, connecting rod 13, motor 14, laser transmitter 15, CCD Camera 16, synchronous controller 17, computer 18, oil-gas separator 19, air compressor 20 and tracer particle recovery valve 21. The air compressor 20 supplies air to the surge tank 1, and the air outlet of the surge tank 1 is connected to the air inlet of the mixing container 6 through the pipeline one; the pipeline one is provided with an air inlet valve 4 and a...
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Abstract
The invention discloses a gas motion simulation and optical analysis test device and method in a pre-combustion chamber. At present, only the experimental means for studying the airflow movement in the pre-combustion chamber during the enriched injection stage have been proposed. The invention includes a surge tank, a tracer particle generator, a tracer particle intake valve, an air intake valve, a mixing container exhaust valve, a mixing container, a pre-combustion chamber air injection valve, a main combustion chamber exhaust valve, and a main combustion chamber Intake valve, main combustion chamber, piston, connecting rod, electric motor, laser transmitter, CCD camera, synchronous controller, computer, oil and gas separator, compressor and tracer particle recovery valve. The invention uses a two-dimensional particle image velocimetry (PIV) method to measure and obtain the motion characteristics of the mixed gas in the pre-combustion chamber model.
Description
technical field [0001] The invention belongs to the technical field of engine engineering, and in particular relates to a gas motion simulation and optical analysis test device and method in a pre-combustion chamber. The motion characteristics of the mixed gas in the pre-combustion chamber model are obtained by measuring the two-dimensional particle image velocimetry (PIV) method . Background technique [0002] Traditional spark ignition engines usually control the air-fuel ratio near the theoretical air-fuel ratio, which will lead to an increase in nitrogen oxide emissions and produce abnormal combustion at low speed and high load. At present, lean-burn technology can effectively solve these problems, but at the same time, it has disadvantages such as slow combustion speed, unstable ignition, large cycle-to-cycle changes, partial combustion and even misfire, which will affect the performance of the engine. The above problems can be solved by adopting pre-chamber spark plug...
Claims
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IPC IPC(8): G01N21/85G01N21/03G01N31/12
CPCG01N21/03G01N21/85G01N31/12G01N2021/0175G01N2021/0325G01N2021/8578
Inventor 何海斌刘振东舒涌赵福建李胜磊胡文涛
Owner 浙江知管通网络科技有限公司