Internal wave type non-crankshaft internal combustion engine

Abstract

The invention discloses an internal wave type crankshaft-free internal combustion engine. An internal wave wheel and a dual cascade valve cam are both fixed on an output shaft. Twelve cylinders are axially, symmetrically, annularly and evenly arranged on the circumference of the dual cascade valve cam inside the internal wave wheel. One end of a push rod is hinged with pistons; the other end of the push rod has a cam roller and a push rod roller; and the cam roller is inserted into a shape groove of the internal wave wheel, and the push rod roller is arranged in a guide groove. The driving force of the pistons is transmitted to the internal wave wheel and the output shaft by the push rod and is outputted, thereby saving a crankshaft and a connecting rod in the prior internal combustion engine. The guide groove bears a circumferential component force of the force given to the push rod by the internal wave wheel, thereby bringing about zero side pressure between the pistons and the cylinder walls. All acting forces of the pistons on the internal wave wheel are completely balanced. The dual cascade valve cam controls the intake and exhaust valves of all cylinders without a valve timing driving mechanism. The internal combustion engine is characterized by compact and simple structure, no side pressure, small axial size, low vibration, stable running, high outputted torque and power, high efficiency, long service life, and the like.

Description

technical field [0001] The invention relates to an internal combustion engine, in particular to an internal wave type internal combustion engine without a crankshaft. Background technique [0002] The traditional crankshaft-connecting rod type reciprocating piston internal combustion engine has been the dominant structural form of thermal power machinery since its invention. At present, the four-stroke crankshaft connecting rod type reciprocating piston internal combustion engine is widely used. The reciprocating linear motion is converted into the rotary motion of the crankshaft to output power. The main disadvantages of the internal combustion engine of this structural form are: large volume; there is a relatively large periodical alternating side pressure between the piston and the cylinder wall, which causes a large friction power consumption, which aggravates the pressure on the cylinder wall, piston (piston ring) ) wear and tear shortens the life of the internal combu...

AI Technical Summary

Problems solved by technology

The main disadvantages of the internal combustion engine of this structural form are: large volume; there is a relatively large periodical alternating side pressure between the piston and the cylinder wall, which causes a large friction power consumption, which aggravates the pressure on the cylinder wall, piston (piston ring) ) wear and tear shortens the life of the internal combustion engine; the mechanical work efficiency is low; the unbalanced centrifugal force on the crankshaft is large, the impact is large, and the vibration is large; in order to make the internal combustion engine work smoothly, a multi-cylinder internal combustion engine is usually used, and the more cylinders of the internal combustion engine, The longer the crankshaft, the greater the friction loss; the valve mechanism is complex and the number of parts is large

But this internal-combustion engine has the following disadvantages: due to the need to use a synchronous belt transmission mechanism as the gas distribution timing transmission mechanism, the structure of the internal-combustion engine is relatively complicated and not compact enough, the number of parts is large, the axial dimension is large, and the volume is large; The large periodic alternating side pressure between the cylinder wall and the cylinder wall has not been eliminated, resulting in large friction power consumption, shortened life of the internal combustion engine, and low mechanical work efficiency; due to the cantilever arrangement of the gas distribution camshaft and output cam, the Output cams, rollers, pistons, cylinders, and gas distribution camshafts have higher requirements for strength, rigidity, manufacturing and installation accuracy, so processing and assembly are more difficult and manufacturing costs are higher; Composed of two small cylinders connected in series, the piston is composed of two pistons, one large and one small, and a piston rod. The structure of the cylinder and the piston is more complicated and difficult to process.

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