Double-piston-rotor internal combustion engine

Abstract

The invention discloses a double-piston-rotor internal combustion engine. A first rotor comprises a rotating shaft disc, two first piston bodies are arranged at one end of the rotating shaft disc, a first rotating shaft provided with a first egg-shaped gear is installed at the other end of the rotating shaft disc, and the bottom face of a cover plate is connected with the end faces of the first piston bodies. A second rotor comprises a second rotating shaft, two second piston bodies are arranged at one end of the second rotating shaft, a second egg-shaped gear is installed at the other end of the second rotating shaft, the second rotating shaft is installed in a shaft hole of the first rotating shaft in a penetrating mode, and the second rotating shaft and the first rotating shaft are jointly installed in a shaft hole of a disc-shaped piece in a penetrating mode. An upper end disc and a lower end disc of the disc-shaped piece are connected with a combustor shell and a flange of a gearbox through bolts respectively. A power output gear shaft is installed in a shaft hole in the bottom of the gearbox. Upper egg-shaped gears of two double-egg-shaped gear shafts are meshed with the first egg-shaped gear and the second egg-shaped gear respectively, and lower egg-shaped gears of the two double-egg-shaped gear shafts are meshed with two egg-shaped gears on the power output gear shaft respectively. The double-piston-rotor internal combustion engine is low in oil consumption, high in power-to-weight ratio, large in output torque, low in vibration, simple and compact in structure, easy to design and good in manufacturability.

Description

technical field [0001] The invention relates to the technical field of internal combustion engines, in particular to rotary piston internal combustion engines. Background technique [0002] A heat engine is a device that converts heat energy into mechanical energy. The internal combustion engine is an important type of heat engine. The internal combustion engine mainly includes an ignition system, a combustion system, a transmission system, a cooling system, an oil supply system, and a lubrication system. [0003] Since the invention of the crankshaft-connecting-rod internal combustion engine around 1898 AD, the crankshaft-connecting-rod internal combustion engine has been widely used in ground vehicles, shipping and various power equipment, and has greatly accelerated the progress of human history. The basic working principle of the crankshaft-connecting rod internal combustion engine is that the piston is pushed up and down by the high-pressure combustion gas in the cylind...

AI Technical Summary

Problems solved by technology

[0006] 2. During the operation of the crankshaft-connecting rod internal combustion engine, the direction of the force acting on the piston by the connecting rod changes periodically, and when the engine power output is maximum, the force acting on the piston by the connecting rod also reaches the maximum value along the normal direction of the cylinder wall , resulting in a large frictional power loss between the piston and the cylinder, and it is easy to cause damage to the surface between the piston and the cylinder due to friction

[0007] 3. During the operation of the crankshaft-connecting-rod internal combustion engine, the piston is always in a state of reciprocating motion. When intake air, the piston quickly enters the compression stroke at the bottom dead center, so that there is no more time to absorb when the cylinder volume is the largest. More fresh mixed oil and gas are fed in, and the piston quickly enters the intake stroke when it reaches the top dead center when exhausting, so that there is no more time for the exhaust gas to be discharged to the maximum extent when the cylinder volume is the smallest. These conditions will eventually affect more Too much fresh mixed oil and gas enters the cylinder, which leads to low engine ventilation efficiency and affects the increase of engine power per liter to a certain extent.

[0008] 4. The crankshaft connecting rod mechanism is not an axisymmetric part, and the vibration and noise caused by the crankshaft connecting rod mechanism during the operation of the internal combustion engine are large; the crankshaft connecting rod mechanism is difficult to balance, and its manufacturing process is complicated and the cost is high; , crankshaft connecting rod mechanism, etc. are easy to wear, and the maintenance cost is high; the limit speed of the internal combustion engine using the crankshaft connecting rod is low, which seriously restricts the improvement of the power-to-weight ratio of the engine

[0009] 5. The throttle valve, crankshaft connecting rod and other structures of the crankshaft connecting rod internal combustion engine are complex and take up a lot of space, resulting in the engine structure not being compact enough

[0018] 1. After several design improvements, the crankshaft-connecting rod internal combustion engine has basically reached its technical performance limit, and its technical performance indicators such as power-to-weight ratio, fuel consumption rate, manufacturing processability, and service life are difficult to meet higher requirements;

[0019] 2. The triangular rotor engine is a breakthrough in internal combustion engine technology, but its technical weaknesses such as high fuel consumption, low output torque, and difficult sealing make it difficult to become the main body of the new generation of internal combustion engine technology;

But so far, among such invention patents, some patents are variants of the crankshaft-connecting rod internal combustion engine, which still retain the crankshaft connecting rod-shaped parts in its structure, which affects the performance of the internal combustion engine; some patents have too complicated structural design , affecting the power-to-weight ratio, manufacturing process, service life of the internal combustion engine, etc.; some patents lack the necessary quantitative design and analysis, and the products designed and manufactured according to their plans actually do not meet the technical performance of the patent nominal

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