Visual direct-injection gasoline engine

A gasoline engine and visualization part technology, applied in the direction of cylinders, cylinder heads, mechanical equipment, etc., can solve the problems of poor analogy and difficult balance of single-cylinder engine modification, and achieve the effect of reducing the probability of damage, avoiding scratches, and running smoothly

Inactive Publication Date: 2014-01-29
JILIN UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems existing in the prior art of using a single-cylinder engine to refit the optical eng

Method used

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  • Visual direct-injection gasoline engine

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Embodiment Construction

[0054] The present invention is described in detail below in conjunction with accompanying drawing:

[0055] The control unit 1 is the control center of the entire visual direct injection gasoline engine. Based on the freescale9S12X chip, the sensor signal is collected through the data acquisition card. After the collected signal is compiled and processed in assembly language, the output control signal is executed according to the program, and the output port of the freescale9S12X is connected to an external drive. The circuit, the driving circuit controls the execution of the actuator according to the output signal. Specifically, the control unit 1 controls the fuel injector 24 and the spark plug 62 to perform fuel injection and ignition respectively by collecting the signals of the rotational speed sensor 40 and the camshaft phase sensor 61, so as to realize the normal combustion in the cylinder of the visualized direct-injection gasoline engine; The 60 signal controls the f...

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Abstract

The invention discloses a visual direct-injection gasoline engine, and belongs to the technical field of engines. According to the visual direct-injection gasoline engine, the upper portion and the lower portion of a lengthened visual part are fixedly connected with a cylinder cover part of the engine and a cylinder body part of the engine respectively, and a control unit is respectively connected with a fuel pressure adjusting valve, a throttle valve, a sparking plug, a fuel injector, a cam shaft phase sensor, a rail pressure sensor, a mechanical supercharger and a rotating speed sensor; a low pressure oil pump is in serial connection with a fuel tank and a high pressure oil pump; a water outlet of a water tank is connected with a water inlet of a base, and a water pump is in serial connection with the water tank and a water inlet pipeline of a base of a water jacket; a digital display heating pipe is installed in the water tank and connected with a temperature sensor of cooling liquid; the temperature sensor of the cooling liquid is fixedly connected to a water return port of the water tank. The visual direct-injection gasoline engine can solve the problems that in the prior art, when an optical engine and an actual gasoline engine are refitted by a single-cylinder engine, assimilating performance is poor, and the single-cylinder engine is difficult to refit and balance, the visual direct-injection gasoline engine is applicable to optical research in a supercharging small-displacement cylinder, and the visual direct-injection gasoline engine is low in operating noise, long in service life and low in cost.

Description

technical field [0001] The invention belongs to the technical field of engines, more precisely, the invention is a visual direct-injection gasoline engine. Background technique [0002] With the development of the automobile industry, GDI (direct injection) gasoline engines have gradually become the mainstream of passenger car engines. Compared with PFI engines with port injection, GDI engines have high compression ratio, good economy, flexible fuel injection, It has the advantages of high control precision and multiple combustion modes. However, the increasingly stringent emission regulations require that engine technologies with lower emissions and lower fuel consumption are urgently needed to achieve the goal of energy saving and emission reduction. Therefore, the further development and popularization of the technical potential of GDI engines is of great significance to the realization of this goal. [0003] The visualized direct injection gasoline engine provides a thr...

Claims

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Application Information

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IPC IPC(8): F02B65/00F02B77/08F02B33/00F01P3/20F02F1/00F02F1/18F01L1/348F16F15/22
Inventor 苏岩洪伟韩林沛解方喜王亚川许允李小平姜北平程鹏
Owner JILIN UNIV
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