A sequential supercharging structure and supercharging method of an adjustable diesel engine
A sequential supercharging and diesel engine technology, applied in mechanical equipment, combustion engines, machines/engines, etc., can solve the problems of turbocharged diesel engine idling or warm-up working conditions without improvement, system cost and complexity to be improved, etc., to achieve Improve the operating range and operating performance, good matching effect
Active Publication Date: 2017-12-19
HARBIN ENG UNIV
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All of the above patents have room for improvement, for example, there is no improvement effect on the idling or warm-up conditions of the supercharged diesel engine, or the cost and complexity of the improved system still need to be improved
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[0028] The present invention is described in more detail below in conjunction with accompanying drawing example:
[0029] combine Figure 1~2 , the structure of the present invention includes a diesel engine body, a diesel engine intake pipe, a diesel engine exhaust pipe, an intake communicating pipe 3, an exhaust communicating pipe 8, a basic three-way valve 6, a controlled three-way valve 13, a first turbocharger, a second Two turbochargers, gas valve 10 and intercoolers 4, 11. The first turbocharger is composed of the first compressor 1 and the first turbine 5 , and the second turbocharger is composed of the second compressor 14 and the second turbine 15 . The intake pipes 2 of the row A of the diesel engine and the intake pipes 12 of the row B of the diesel engine communicate with each other through the intake connecting pipe 3 , and the exhaust pipes 2 of the row A of the diesel engine and the exhaust pipes 9 of the row B of the diesel engine realize the communication th...
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The invention aims to provide an adjustable sequential supercharging structure and method for a diesel engine. The adjustable sequential supercharging structure comprises A-line air cylinders, B-line air cylinders, a first turbo-supercharger and a second turbo-supercharger, wherein a basic triple valve is mounted on an A-line exhaust pipe between a first turbine and an exhaust communicating pipe; a first channel of the basic triple valve is connected with the exhaust communicating pipe; a second channel of the basic triple valve is connected with the first turbine; a third channel of the basic triple valve communicates with atmosphere; a controlled triple valve is mounted on a B-line exhaust pipe between a second compressor and an air intake communicating pipe; a first channel of the controlled triple valve is connected with the air intake communicating pipe; a second channel of the controlled triple valve is connected with a second gas compressor; a third channel of the controlled triple valve communicates with the atmosphere. According to the adjustable sequential supercharging structure and method disclosed by the invention, the matching of the diesel engine and the turbo-superchargers under different working conditions can be better met, the operation range of a turbo-charged diesel engine is enlarged, and the operation performance of the turbo-charged diesel engine is improved.
Description
technical field [0001] The invention relates to a sequential supercharging structure and a supercharging method of a diesel engine. Background technique [0002] Supercharging technology has become a widely used technical method in the field of marine diesel engines, which can effectively improve the economy, power and emission of diesel engines. With the development of high-pressure ratio and high-efficiency turbocharging, the supercharging degree of supercharged diesel engines is getting higher and higher, which also brings some new problems. Since the turbocharger and the diesel engine need to work together, how to take into account all the working conditions of the diesel engine and improve the matching performance of the turbocharger and the diesel engine, so as to ensure the good running performance of the diesel engine, has become an urgent problem to be solved. [0003] Among the existing solutions, such as sequential supercharging, intake and exhaust bypass superch...
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IPC IPC(8): F02B37/007F02B37/12F02B37/16F02B37/18
CPCF02B37/007F02B37/12F02B37/16F02B37/18Y02T10/12
Inventor 王银燕祖象欢崔欣洁杜兴华杨传雷李旭宋贵涛马传杰王贺春
Owner HARBIN ENG UNIV