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Homogeneous premixed combustion engine and control method thereof

A pre-mixed combustion and engine technology, applied in engine control, combustion engine, internal combustion piston engine, etc., can solve problems such as continuous adjustment of unfavorable compression ratio, complex mechanism, etc., to ensure combustion stability, avoid complex mechanism, and achieve efficient combustion. Effect

Active Publication Date: 2021-03-12
CRRC IND INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a homogeneous premixed combustion engine and its control method, which are used to solve the problems in the prior art that the mechanism is complicated and it is not conducive to the continuous adjustment of the compression ratio under multiple working conditions

Method used

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  • Homogeneous premixed combustion engine and control method thereof

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Embodiment Construction

[0043] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0044]In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing this The embodiments and simplified descriptions of the invention do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as...

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Abstract

The invention relates to the technical field of power devices, and provides a homogeneous premixed combustion engine and a control method thereof. The homogeneous premixed combustion engine comprisesa cylinder body, a piston, an adjusting top cover, a cylinder pressure sensor, a preheating plug, an intake valve, an exhaust valve and a control device. The adjusting top cover is used for adjustingthe size of a combustion chamber in a sliding manner. The cylinder pressure sensor is used for collecting pressure information in the combustion chamber. The preheating plug is used for heating the combustion chamber. The intake valve is used for controlling opening and closing of an intake passage and a combustion chamber passage. The exhaust valve is used for controlling opening and closing of an exhaust passage and the combustion chamber passage. The control device is used for controlling the preheating time of the preheating plug, the injection time of a fuel nozzle and operation of the intake valve and the exhaust valve, and controlling the position of the adjusting top cover according to the pressure information and the crank angle of the piston. According to the homogeneous premixedcombustion engine, the compression ratio of the engine can be adjusted in real time according to the heat release rule during fuel homogeneous premixed compression ignition.

Description

technical field [0001] The invention relates to the technical field of power devices, in particular to a homogeneous premixed combustion engine and a control method thereof. Background technique [0002] Homogeneous premixed combustion is generally considered to be an effective technical method that can improve engine thermal efficiency, reduce particulate matter emissions, and improve workability. Compared with ignition internal combustion engine and cylinder direct injection internal combustion engine, the mixed gas formation of homogeneous premixed combustion engine mainly injects fuel into the intake port through the injector, and mixes it with air in the intake port and the cylinder. The formed mixed gas is ignited in the cylinder by relying on the thermodynamic atmosphere in the cylinder and the chemical reaction kinetics of the fuel itself. When it is ignited, the mixed gas in the cylinder reaches the self-ignition temperature and completes the ignition and combustion...

Claims

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Application Information

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IPC IPC(8): F02D15/04F02D41/30F02D13/02F02B75/04F02B77/08F02M31/135F01L3/08
CPCF02D15/04F02D41/30F02D13/0203F02B75/04F02B77/085F02M31/135F01L3/08Y02T10/40Y02T10/12Y02T10/30
Inventor 张擘齐洪峰刘佰博李明高
Owner CRRC IND INST CO LTD
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