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Control device for internal combustion engine and internal combustion engine

A technology of a control device and an internal combustion engine, applied in the directions of engine control, internal combustion piston engine, electrical control, etc., can solve problems such as performance deviation of the internal combustion engine, and achieve the effect of reducing the fluctuation of in-cylinder pressure and realizing the performance.

Active Publication Date: 2021-06-11
MITSUBISHI HEAVY IND LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the scavenging pressure is changed by the variable turbine capacity system, there is a problem that the performance of the internal combustion engine will vary.

Method used

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  • Control device for internal combustion engine and internal combustion engine
  • Control device for internal combustion engine and internal combustion engine
  • Control device for internal combustion engine and internal combustion engine

Examples

Experimental program
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Embodiment Construction

[0031] Preferred embodiments of a control device for an internal combustion engine and an internal combustion engine according to the present invention will be described in detail below with reference to the drawings. In addition, this invention is not limited by this embodiment, When it has several embodiment, it also includes the form which combined each embodiment.

[0032] figure 1 It is a schematic configuration diagram showing a marine diesel engine as an internal combustion engine of the present embodiment.

[0033] In this embodiment, if figure 1 As shown, a marine diesel engine 10 as an internal combustion engine has a diesel engine body (internal combustion engine body) 11 , a VTI supercharger 12 , and a control device 13 .

[0034] The main body of the diesel engine 11 is provided with a plurality of cylinders 21, and the pistons 22 are supported reciprocatingly in each cylinder 21, and the lower parts of the piston rods 23 of the pistons 22 are connected to the c...

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Abstract

In the control device of the internal combustion engine and the internal combustion engine, there are provided: a diesel engine main body (11); a VTI supercharger (12), which has a turbine (32) and supplies combustion to the diesel engine main body (11) Compressor (31) with gas; And exhaust valve (28) and ejector (29) as the working parts that have an impact on the cylinder pressure, the control device (13) is provided with a capacity corresponding to the turbine (32) A plurality of operating parameters (A, B) of the exhaust valve (28) and injector (29) workload, when the capacity of the turbine (32) is changed, after a preset delay time (t+Δt ) to switch the operating parameters (A, B).

Description

technical field [0001] The present invention relates to a control device of an internal combustion engine having a supercharger, and an internal combustion engine having the control device of the internal combustion engine. Background technique [0002] For example, in order to improve fuel economy and reduce CO in exhaust gas, an internal combustion engine mounted on a ship 2 And equipped with supercharger. The supercharger increases the output of the internal combustion engine by driving a turbine and a compressor with exhaust gas discharged from the internal combustion engine to compress and supply combustion gas to the internal combustion engine. [0003] As such a supercharger, there is a variable turbine system having a variable capacity turbine. In this variable turbine system, the variable turbine nozzle is arranged at the inlet of the exhaust gas, the gas inlet passage of the exhaust gas is divided into two systems, and an on-off valve is provided in one of the ga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D23/02F02B37/22F02D13/02F02D43/00F02D23/00
CPCF02B37/22F02D13/02F02D23/00F02D23/02F02D43/00Y02T10/12F02D35/023
Inventor 德楠力一
Owner MITSUBISHI HEAVY IND LTD