Electrically-controlled type high-pressure monoblock-pump single cylinder diesel

Abstract

The invention discloses an electrically-controlled type high-pressure monoblock-pump single cylinder diesel. The electrically-controlled type high-pressure monoblock-pump single cylinder diesel comprises an installation support, an engine body, a lubricating system, a fuel system, an electric control system and a crank connecting rod mechanism, wherein the engine body is fixedly arranged on the installation support, the lubricating system is arranged in the engine body, the left side surface of the engine body is connected with an air cylinder assembly which is internally provided with a distribution mechanism, the upper end of the engine body is provided with a fuel tank, a gear chamber including a crankshaft gear is arranged at the front end of the engine body, a flywheel which is arranged on a crank shaft is positioned at the rear end of the engine body, the right side surface of the engine body is connected with a balance mechanism, an axial clearance adjusting device is arranged between the flywheel and a bearing seat which is used for supporting the crank shaft, and the engine body which is positioned above the air cylinder assembly is provided with a cooling system. According to the electrically-controlled type high-pressure monoblock pump single cylinder diesel disclosed by the invention, the defects of heavy weight, high oil consumption, high noise and poor emission of an existing single cylinder diesel are overcome, and the electrically-controlled type high-pressure monoblock pump single cylinder diesel has the advantages of low oil consumption, light weight, enough power, low noise, good emission, attractive appearance and the like.

Description

technical field [0001] The invention relates to the technical field of single-cylinder diesel engines, in particular to an electronically controlled high-pressure unit pump single-cylinder diesel engine. Background technique [0002] At present, the annual diesel consumption of single-cylinder diesel engines accounts for about 50% of the country's annual consumption, and most of its emission indicators are lower than the National I level. They generally have defects such as high fuel consumption, high noise, and heavy quality, and urgently need to be replaced. With the promulgation and implementation of increasingly stringent environmental protection regulations, energy saving and environmental protection requirements will further promote the technological progress of diesel engines. The application of electronic control technology points out the research direction for the improvement of single cylinder diesel engine. The electronic control technology can keep the operating...

AI Technical Summary

Problems solved by technology

At the same time, the current single-cylinder diesel engine still has certain deficiencies in the structure. For example, the commonly used dual-axis balance mechanism, although the balance is relatively ideal, but its structure is more complicated, the number of parts is increased, and the installation positions of the two shafts are all in the body. In order to reserve the installation position of the balance shaft, the overall size of the body is lengthened, resulting in poor rigidity and increased weight; the cooling system basically adopts an open evaporative cooling device, which consumes a lot of water due to fast evaporation of water, and requires It is equipped with a large water tank, and frequent water replenishment is required, and the cooling water temperature is high, which will lead to an increase in the intake and exhaust temperature of the engine and uneven mechanical deformation; it is also difficult to adjust the axial clearance of the crankshaft with the change of the axial force on the crankshaft. Adjust at any time. Excessive axial clearance will seriously affect the smooth operation of the diesel engine. Too small bearing clearance will increase the running noise of the diesel engine and affect the service life of the bearing. Therefore, a reasonable axial clearance must be determined.

Images