Visual direct-injection gasoline engine

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...

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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 engine and the actual gasoline engine, and to provide a visual direct-injection gasoline engine refitted with a four-cylinder direct-injection gasoline engine.

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