Reciprocating heat accumulating type internal combustion engine using scavenging pump for auxiliary intake and exhaust

Abstract

A reciprocating heat accumulating type internal combustion engine using a scavenging pump for auxiliary intake and exhaust comprises the scavenging pump, a compression cylinder, a heat accumulator, a communicating pipe, a combustion chamber and an expansion cylinder. The internal combustion engine is structurally characterized in that the heat accumulator is located in a channel of the communicating pipe which connects the compression cylinder and the expansion cylinder, and the middle of the compression cylinder is provided with a scavenging port and a waste gas exhaust port. According to the basic working principle, when a compression cylinder piston moves from a lower dead center to an upper dead center, air in the compression cylinder is compressed, the compressed air is heated when flowing through the heat accumulator, enters the combustion chamber and is mixed with fuel for combustion, an expansion cylinder piston moves downwards from the upper dead center, and fuel gas expands and does work. When the expansion cylinder piston moves upwards, the compression cylinder piston moves downwards, the fuel gas comes out of the expansion cylinder after doing work, passes through a combustor and the heat accumulator in the reverse direction, heats the heat accumulator, lowers the temperature of itself, enters to a compression cavity and is exhausted through the waste gas exhaust port; air pre-compressed by the scavenging pump enters the compression cylinder through the scavenging port and further makes waste gas be discharged.

Description

technical field [0001] The invention relates to an engine, which is a reciprocating regenerative internal combustion engine in which a scavenging pump assists intake and exhaust. Background technique [0002] The engine generally refers to a heat engine, which is a power device that converts fuel or other energy into heat energy of the working medium inside the engine, and further converts it into mechanical energy. The internal combustion engine is a traditional and widely used engine, which has important applications in industry, transportation and other industries. As the name suggests, an internal combustion engine is a fuel that burns inside cylinders to do work, the most common being gasoline and diesel engines. Because fuel combustion is carried out under short-term, intermittent and other limited conditions, resulting in insufficient fuel combustion, serious exhaust pollution, poor efficiency in variable working conditions, engine wear, high maintenance costs, high ...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of low efficiency of gasoline engines, bulky diesel engines, serious pollution of internal combustion engines, low efficiency of variable working conditions, serious noise and vibration, many moving parts, frequent maintenance, etc., the present invention proposes a reciprocating pump to assist air intake and exhaust. regenerative internal combustion engine

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