Axially opposed piston barrel cam driven five-stroke engine

Abstract

The invention discloses an axial opposed piston tubular cam drive type five stroke engine. The axial opposed piston tubular cam drive type five stroke engine comprises a tubular engine body, air cylinders, pistons and a bottom seat, and is characterized in that the pistons are tubular, a left piston and a right piston which are oppositely arranged are arranged in each air cylinder, an air inlet, an air outlet, an oil nozzle and a spark plug ignition mouth are arranged between each left piston and each right piston, an inner side rotation roller and an outer side rotation roller are arranged in an L-shaped step mouth at the outer end of each piston, tubular cams are arranged at two ends of a center rotation main shaft, a track curve mouth of each tubular cam is clamped into a space between the inner side rotation roller and the outer side rotation roller, arranged on the L-shaped step mouth of each corresponding piston, and the left pistons and the right pistons are driven to move through the track curve mouths. The axial opposed piston tubular cam drive type five stroke engine not only has advantage of oppositely placing the pistons, but also can effectively improve cycle thermal efficiency, reduce exhaust temperature, improve fuel efficiency, and improve volume power, and is simple in structure, convenient to implement and convenient to design.

Description

technical field [0001] The present invention relates to an improvement of an engine, in particular to a five-stroke engine driven by an axially opposed piston barrel cam. Background technique [0002] An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (gasoline engines, etc.), external combustion engines (Stirling engines, steam engines, etc.). At present, the main structural form of the internal combustion engine is a reciprocating piston engine, including four-stroke and two-stroke. The linear motion of the piston is converted into a rotary motion through a crank connecting rod mechanism; its body is a cuboid, the cylinders are arranged in rows, and the upper end is provided with The cylinder head is provided with an intake hole and an exhaust hole. Although this type of engine is widely used, the following shortcomings are also found in operation: First, the efficiency is low, the efficiency of gaso...

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Problems solved by technology

Although this kind of engine is widely used, the following deficiencies are also found in operation: one is low efficiency, gasoline engine efficiency is generally 25%~35%, diesel engine efficiency is generally 35%~45%; Mechanism, the vibration of the machine is large, and a balance mechanism is required. The four-stroke engine is equipped with a complex valve mechanism. The disadvantage of the two-stroke engine is that the exhaust gas remains and consumes fuel. About 35% of the engine power loss is taken away by the exhaust gas. The internal combustion engine is the most efficient engine in the heat engine, but only a small part of the heat generated by the combustion of the fuel entering the engine becomes useful work, and most of the rest is due to various reasons. Lost; the fourth is the four-stroke cycle, there is only one piston in the cylinder, that is, downward suction, upward compression, ignition and explosion make the piston do work downward, and exhaust upward, so that the four strokes require the crankshaft to rotate twice, and only do work once; the crank With the connecting rod structure, the stroke of each stroke is consistent and fixed. At the end of the power stroke, the exhaust gas starts to be discharged, and the discharge temperature is high, taking away a large part of the heat, accounting for about 35% of the total heat of fuel combustion; All four-stroke engines have complex valve trains

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