A nitrogen-hydrogen-doped gasoline fuel rotary machine and its control method
A rotary engine and gasoline technology, applied in fuel injection control, engine control, electrical control, etc., can solve the problems of high hydrocarbon emissions, increased quenching effect, poor emission effect, etc., achieve good power performance, and curb exhaust pollutants The generated effect of
Active Publication Date: 2022-03-29
BEIJING UNIV OF TECH
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[0002] With its unique geometric design and movement mode, the rotary engine has many advantages compared with the piston engine, such as simple structure, small size, light weight, uniform torque, and stable operation. However, the special geometric structure of the rotary engine makes the cylinder memory In many narrow areas, the phenomenon of incomplete combustion is serious, which increases the quenching effect, resulting in high hydrocarbon emissions, and the problem of poor emission effects during high-speed and heavy-load operation is prominent
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[0017] Below in conjunction with accompanying drawing and specific embodiment the present invention will be further described:
[0018] Rotary engine ECU (E) receives the rotational speed (n) signal of rotational speed sensor (18):
[0019] When n=0 changes to n≠0 within two seconds, this is the starting phase, gasoline is used for starting, ECU (E) outputs signal, throttle valve (S1) is opened, and gasoline is injected into In the intake port, it is adjusted to make the fuel and oxidant in the cylinder burn according to the stoichiometric ratio during the start-up phase; at the same time, the ECU (E) outputs signals (a) and (i) to the nitrogen volume flow controller (9) and the hydrogen volume flow control Device (14), make hydrogen and nitrogen volume flow rate be 0;
[0020] When 0
[0021] When 2000≤n
[0022] When 5000≤n Nitrogen volume percentage
[0023] When n≥10000rpm, the rotational speed is too high at this time. To ensure safety, gasoline combustion is used, ...
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A nitrogen-hydrogen-doped gasoline fuel rotary engine and a control method thereof belong to the field of internal combustion engines, and in particular relate to a control method for adjusting the amount of direct injection of hydrogen in a cylinder and the amount of nitrogen injection in an intake port according to the rotational speed signal of the rotary engine. The device judges the operating condition of the rotor machine based on the output signal of the rotor machine speed sensor, and adjusts the different speeds at different speeds in combination with the throttle valve (S1), gasoline nozzle (3), nitrogen nozzle (8) and hydrogen nozzle (12). Fuel injection time and injection volume, reasonable control of mixture composition and excess air coefficient, while ensuring good power of the rotary engine at low and medium speeds, effectively reduce HC and CO emissions, and significantly curb the formation of NOx when running at high speeds.
Description
technical field [0001] The invention designs a nitrogen-hydrogen-doped gasoline fuel rotary engine and a control method thereof, specifically relates to a control method for adjusting the hydrogen direct injection amount in a cylinder and the nitrogen injection amount in an intake port according to the rotary engine speed signal, and belongs to the field of internal combustion engines. Background technique [0002] With its unique geometric design and movement mode, the rotary engine has many advantages compared with the piston engine, such as simple structure, small size, light weight, uniform torque, and stable operation. However, the special geometric structure of the rotary engine makes the cylinder memory In many narrow areas, the phenomenon of incomplete combustion is serious, which increases the quenching effect, resulting in high hydrocarbon emissions, and the problem of poor emission effects during high-speed and heavy-load operation is prominent. [0003] As a clea...
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IPC IPC(8): F02B53/00F02B53/10F02B53/02F02B69/04F02M25/00F02D19/08F02D19/12F02D41/00
CPCF02B53/00F02B53/10F02B53/02F02B69/04F02M25/00F02D19/081F02D19/12F02D41/0025Y02T10/12
Inventor 纪常伟常珂汪硕峰杨金鑫孟昊
Owner BEIJING UNIV OF TECH