Two-stroke opposed-piston diesel engine

Abstract

The invention relates to a two-stroke opposed-piston diesel engine. The existing piston-type engine structure is that a piston is arranged inside an engine cylinder, the piston is connected with a crankshaft through a connecting rod to form a crankshaft linkage mechanism, and the energy conversion efficiency is only 25 to 35 percent. The invention aims at designing a two-stroke opposed-piston diesel engine. The two-stroke opposed-piston diesel engine structurally consists of piston mechanisms (3), a power output mechanism (34), a left crankshaft linkage mechanism (36), and a right crankshaft linkage mechanism (32), wherein the piston mechanisms (3) with the same structure and capable of synchronously moving in opposite directions are oppositely arranged at two sides inside an air cylinder barrel (6) of an air cylinder body (2), a burning chamber (31), a fuel oil nozzle mechanism (10) and a vent valve mechanism (22) are arranged on the middle position of the cylinder barrel (6). The two-stroke opposed-piston diesel engine has the advantages that by adopting a unique structure, two pistons are ingeniously and symmetrically arranged inside the cylinder barrel, so that multiple problems existing in the traditional piston-type engine can be high efficiently and reliably solved. The energy conversion efficiency can be improved.

Description

[0001] 1. The fields mentioned [0002] The invention relates to a structure of an opposed-piston diesel engine, in particular to a two-stroke opposed-piston diesel engine. 2. Background technology [0003] The structure and principle of present piston engine are: a set of piston mechanism is placed in engine cylinder barrel, and piston is connected with a crankshaft by connecting rod, forms crank-link mechanism. The upper plane of the piston, the inner wall of the cylinder bore and the inner surface of the engine cylinder head together form the combustion chamber. The combustible mixture explodes in the combustion chamber to generate energy, which pushes the piston to move downward along the cylinder, drives the crankshaft to rotate in a circle through the crank-link mechanism, and outputs power from the crankshaft. Under the action of the inertia of the last working stroke, the crank-link mechanism continuously completes the intake-compression-work-exhaust process successiv...

AI Technical Summary

Problems solved by technology

During the working process of the traditional piston engine, part of the energy generated by the explosion of the combustible mixture in the combustion chamber is converted into heat energy and absorbed by the elastic deformation of the engine cylinder head. The energy generated by the explosion cannot be fully utilized for effective work and output power, and the energy conversion efficiency is low. (only 25-35%); limited by the structure of the traditional piston engine, the intake air volume of a single cylinder is small, the fuel combustion is insufficient, the fuel consumption is large, and the exhaust pollution is serious; because the traditional piston engine needs complex valve mechanism to cooperate to be normal Work, complex structure, high failure rate, high maintenance requirements, high maintenance costs; traditional piston engine cylinder head, cooling system, lubrication system layout is not flexible, the engine is large, heavy, and installation layout is not flexible; engine block structure Complex, difficult to process, high manufacturing cost, long production cycle, high engine manufacturing cost

To sum up, the traditional piston engine has low energy conversion efficiency, high fuel consumption, high exhaust pollution, complex structure, high failure rate, large volume, low horsepower per unit mass, high manufacturing cost, long manufacturing cycle, and difficult maintenance. Disadvantages such as high cost of use and inflexible installation and layout do not meet the requirements of the development trend of energy conservation and environmental protection in the whole society

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