Novel internal combustion engine variable compression device

Abstract

The invention belongs to internal combustion engine transformation equipment, and particularly relates to a novel internal combustion engine variable compression device which can improve the heat efficiency of an internal combustion engine. The device comprises a space adjusting motor, a stroke adjusting motor, space adjusting shafts, stroke adjusting shafts, a rocker shifting fork, stroke adjusting eccentric sliding sleeves, a space adjusting eccentric sliding sleeve, an air inlet adjusting sliding block and an exhaust adjusting sliding block, wherein the space adjusting eccentric sliding sleeves are mounted on the two sides of the positions, corresponding to cams of an air inlet camshaft and cams of an exhaust camshaft, of the inner sides of the space adjusting shafts; the air inlet adjusting sliding block is mounted in a sliding groove hole in the side where an air inlet manifold is mounted; the exhaust adjusting sliding block is mounted in a sliding groove hole in the side where an exhaust manifold is mounted; the space adjusting eccentric sliding sleeve is hinged to the upper portion of a sliding block adjusting connecting rod; and a cylindrical boss of a sliding block adjusting gland is connected with the lower portion of the sliding block adjusting connecting rod in a hinged mode. The position and stroke of an air valve are changed through an eccentric shaft device, so that the compression ratio of the internal combustion engine is adjusted, and the novel internal combustion engine variable compression device has the characteristics of being simple and reliable in structure, small in occupied space, high in practicability, capable of saving energy and the like.

Description

technical field [0001] The patent of the invention belongs to internal combustion engine modification equipment, and specifically relates to a novel internal combustion engine variable compression ratio device, which is a device for improving the thermal efficiency of the internal combustion engine. Background technique [0002] As the main power source of today's automobiles, the internal combustion engine has developed relatively mature technology after years of development, and its maximum thermal efficiency can reach more than 40%. The thermal efficiency of ordinary household cars is more than 30% under design conditions, but it is impossible for cars to run continuously. Running under design conditions, coupled with the increasingly serious traffic congestion today, has caused cars to run at low speeds in many cases, resulting in a sharp decrease in thermal efficiency, increased fuel consumption, and increased emissions of carbon dioxide and pollutants from cars. The ro...

AI Technical Summary

Problems solved by technology

This leads to the fact that the efficiency of traditional gasoline engines is relatively high under design conditions, but the compression ratio is relatively not high enough under low conditions, resulting in a decrease in efficiency and an increase in fuel consumption

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