Super-power-density diesel engine with sequential intervention type composite combustion systems

Abstract

The invention discloses a super-power-density diesel engine with sequential intervention type composite combustion systems. The super-power-density diesel engine with the sequential intervention typecomposite combustion systems comprises a common rail pipe, a high-pressure oil pipe, a cylinder cover, a main combustion chamber oil nozzle, an exhaust pipe, an air inlet pipe, an intercooler, a high-pressure-stage turbine bypass valve, a high-pressure-stage turbine, a high-pressure-stage gas compressor bypass valve, a high-pressure-stage gas compressor, a low-pressure-stage turbine, a low-pressure-stage gas compressor, a cylinder body, a low-pressure oil supply pump, an oil tank, a piston, a main combustion chamber, a hydraulic valve, a filter, an auxiliary combustion chamber, an auxiliary combustion chamber oil nozzle, a high-pressure oil pipe, a high-pressure oil supply pump and a rail pressure valve, and is characterized in that the main combustion chamber (18) communicates with the auxiliary combustion chamber (21) through the hydraulic valve (19), the main combustion chamber (18), the high-pressure-stage turbine (9) and a high-pressure common rail system work cooperatively, an ECU issues an instruction to open the hydraulic valve (19), the auxiliary combustion chamber (21) and a secondary supercharging system intervene, the main combustion chamber (18), the auxiliary combustion chamber (21), the high-pressure-stage turbine (9), the low-pressure-stage turbine (12) and the high-pressure common rail system cooperatively work, and a sensor is arranged on the hydraulic valve (19) and is regulated and controlled through the ECU.

Description

technical field [0001] The invention relates to an ultra-high power density diesel engine and an electronically controlled high-pressure common rail fuel injection system. More precisely, it is a sequentially intervening composite combustion composed of a two-stage supercharging system that can be intervened in sections and two sets of combustion systems. A new type of diesel engine characterized by the system. Background technique [0002] Actively carrying out research on the key technologies of mainstream HPD high power density diesel engines with high-voltage electronically controlled fuel injection is an opportunity for the rapid development of power technology for tanks and armored vehicles in my country. , high reliability, and extremely high power density in combat conditions; on the other hand, the staged research results of HPD diesel engine technology can be used to improve the power of active equipment and meet the power requirements of high-speed amphibious armor...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a sequential intervention composite combustion system to solve the technical problems of poor reliability, unstable combustion when working near the explosion pressure, and long-duration constant-pressure combustion under the explosion pressure of constant-volume combustion in the prior art.

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