Supercharging structure and control method of multi-stage adjustable sequential supercharging diesel engine
A technology of sequential supercharging and supercharging structure, which is applied in the direction of mechanical equipment, combustion engine, machine/engine, etc., to achieve the effect of improving the performance of the whole machine and improving the matching performance
Active Publication Date: 2017-11-21
HARBIN ENG UNIV
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Problems solved by technology
Although the technical solutions recorded in the above patents are all helpful to improve the performance of the diesel engine in all working conditions, there are still common problems worthy of improvement, that is, how to simplify and comprehensively cover more working conditions of the diesel engine, not limited to the current Some switching between classic modes
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[0026] The present invention is described in more detail below in conjunction with accompanying drawing example:
[0027] to combine Figure 1~3 , the present invention comprises a diesel engine cylinder, a basic turbine 3, a basic compressor 2, a controlled turbine 15, a controlled compressor 14, an intake communication pipe 5, an exhaust communication pipe 8, a basic three-way ball valve 1, and a controlled three-way ball valve 12. Air valve 13, A row intercooler 7 and B row intercooler 9. It is characterized in that: the basic turbine 3 and the basic compressor 2 constitute a basic turbocharger, the controlled turbine 15 and the controlled compressor 14 constitute a controlled turbocharger, and the intake pipe of the diesel engine includes the A row of intake pipes 6 and B row intake pipe 10, diesel engine exhaust pipe includes A row exhaust pipe 4 and B row exhaust pipe 11, diesel engine A, B row exhaust pipe realizes intercommunication through exhaust connecting pipe 8, ...
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The invention aims at providing a multi-stage adjustable successive supercharged diesel engine supercharging structure and a control method. The multi-stage adjustable successive supercharged diesel engine supercharging structure comprises a basic turbine supercharger, a controlled turbine supercharger, a basic tee-joint ball valve and a controlled tee-joint ball valve. A diesel engine air inlet pipe comprises an A-line air inlet pipe and a B-line air inlet pipe. A diesel engine air outlet pipe comprises an A-line air outlet pipe and a B-line air outlet pipe. The diesel engine A-line air inlet pipe and the diesel engine B-line air inlet pipe are communicated through an air inlet communicating pipe. The diesel engine A-line air outlet pipe and the diesel engine B-line air outlet pipe are communicated through an air outlet communicating pipe. Intercoolers are arranged at the diesel engine air inlet pipe respectively. An air valve is installed at an outlet of a controlled air compressor. The basic tee-joint ball valve is arranged on a basic turbine outlet pipeline. The controlled tee-joint ball valve is arranged on a controlled turbine inlet pipe. The matching performance of the turbine supercharger and the diesel engine can be effectively improved, especially, the requirement for air inlet of the supercharged diesel engine under medium-low-load different rotating speeds can be met, and the performance of the whole supercharged diesel engine is improved.
Description
technical field [0001] The invention relates to a diesel engine structure and a control method thereof, in particular to a diesel engine supercharging structure and a control method thereof. Background technique [0002] The use of supercharging technology is the most effective way to increase the power of diesel engines, and the power of diesel engines grows proportionally with the increase of supercharging pressure. The use of exhaust gas turbocharging can not only improve the fuel economy of the diesel engine, but also improve the thermal efficiency of the diesel engine and improve the emission performance of the diesel engine. At present, exhaust gas turbocharging technology has been widely used in the field of diesel engines. [0003] Since the high-speed rotating turbocharger and the reciprocating diesel engine work together, it is difficult to take into account the performance of the diesel engine under all operating conditions. Therefore, how to achieve a good match...
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IPC IPC(8): F02B37/007F02B37/013F02B37/12
CPCF02B37/007F02B37/013F02B37/12Y02T10/12
Inventor 王银燕祖象欢崔欣洁杨传雷李旭宋贵涛马传杰王贺春
Owner HARBIN ENG UNIV