JP2015145669A - Piston engine, and engine device equipped with piston engine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary piston, a piston engine equipped with the rotary piston, and an engine device equipped with the piston engine.SOLUTION: A rotary piston is equipped with a piston body having a triangular vertical cross section, large and small planetary gears fixed to a center of the piston body and engaged with each other, and a crank shaft penetrating the small planetary gear. Three corners of the triangular cross section extend outward to form projecting ends. Two side surfaces of each projecting end respectively form a compression groove and a combustion groove. A piston engine is equipped with an outer shell, the crank shaft in the outer shell, and two sets of the rotary pistons. The crank shaft has two end portions. The two sets of the pistons are symmetrically disposed at the two end portions of the crank shaft, and separated by a holder disposed between the two sets of the pistons.

Description

This application claims priority from Chinese Patent Applications Nos. 201401183834.8 and 2014010091788.1 filed on March 13, 2014, under 35 USC 119. This is a US national application under 35 USC 111 (a), the contents of both of which are hereby incorporated by reference in their entirety for all purposes.

  The present disclosure relates to engine technology, and more particularly, to a rotary piston, a rotary piston engine including a rotary piston, and an engine apparatus including a rotary piston engine.

  Current fuel engines include reciprocating engines and rotary engines. A reciprocating engine with a history of more than 100 years of development has the advantages of mature technology, safety and high reliability and low efficiency, less than 50% conversion rate, high noise, high carbon emissions and heavy pollution. ing. The rotary engine has the advantages of small size, material saving, light weight and high conversion rate (more than 1 times). The 2-cylinder rotary engine has the same stability and output as the 6-cylinder 4-cycle reciprocating engine. However, rotary engines also have the disadvantages of excessive emissions, incompatibility, high temperatures, high noise and high fuel consumption. Automobiles with either type of engine have drawbacks in terms of high noise and high fuel efficiency.

  In 2013, 25 provinces and 100 large or medium-sized cities in China were attacked by haze. The average number of days of fog generation across the country was 29.9 days, a new record for the past 52 years. Especially in the winter, the generation of haze alternately in the regions of the country attracted a great deal of attention, and dealing with haze became an urgent issue to be solved in Chinese provinces and cities. The International Organization for Cancer Research (IARC) identified air pollution as a carcinogenic factor at a meeting in Lyon, which was officially approved by experts. In particular, airborne particles, that is, so-called PM2.5 has been confirmed to be a carcinogenic factor for humans. Automobile exhaust is the main source of PM2.5.

  The piston is the center of the engine, and the quality of the piston directly affects the overall engine performance. At present, the most advanced rotary engine in the world is the Mazda rotary engine in Japan, and no special treatment has been applied to its external surface. It has been praised by experts as the world's best double rotor engine, characterized by its small size, compact structure, light weight and high output, and represents the glory of the automobile industry. However, this engine has technical defects such as high temperature, high noise, and a wide friction area between the piston surface and the cylinder during operation, and the possibility of piston seizure after piston wear and possibly long operation. The Euro VI standard cannot be met in that it affects the operating performance of the engine and increases fuel consumption and emissions. The engine piston has become a technical bottleneck for Mazda. On June 22, 2012, the production of piston devices for engines was stopped at the Mazda factory in Hiroshima, Japan, and the "automobile rotor era" led by the RX series was over.

  Some technical problems solved by the embodiments of the present disclosure include high noise and high fuel consumption when operating a fuel engine, a wide friction area between the piston surface and the cylinder wall during operation, Includes the possibility of wear or possibly piston seizure. In order to solve these technical problems, the present disclosure provides a rotary piston, a piston engine including the rotary piston, and an engine apparatus including the piston engine.

  According to an embodiment, the rotary piston includes a piston body having a triangular vertical cross section, a large and small planetary gear fixed to a central portion of the piston body and engaged with each other, and a crankshaft penetrating the small planetary gear. And the three corners of the triangular vertical section extend outwardly to form a protruding end adjacent to each other at an angle of 120 degrees, and the two sides of each protruding end are respectively a compression groove and a combustion groove. Form.

According to one embodiment, in order to increase the fuel filling capacity between the cylinder and the piston body, the rotary piston can be designed in the shape of a fish head and the explosive thrust due to the effect of a directional explosion mechanism. Can move along the leading edge to cause rotation, and complete rotation in the chamber through multiple rotations, thereby reducing CO ₂ emissions. According to one embodiment, the rotary piston is driven by a crankshaft that drives a small planetary gear and a large planetary gear. In the air suction state, the power consumption of the rotary piston can be reduced by ½ in order to reduce the work amount. In a state in which compression is applied, the power consumption of the rotary piston can be increased by 1/3, so that the compressed air has the maximum density and the minimum volume. When ignited and exploded, the large planetary gear and the small planetary gear can be arranged on a horizontal line of 180 degrees. When the small planetary gear moves a certain distance with the same mechanical boost lever, the rotary piston performs twice the work, the output torque increases, the horsepower transmitted from the engine can be increased, high efficiency, Realize the goal of energy saving and environmental friendliness.

According to certain embodiments, the combustion groove is deeper than the compression groove. Thereby, the fuel filling capacity between the cylinder and the piston main body is increased, the fuel can be sufficiently combusted during the rotation, and the emission of CO ₂ can be reduced.

  According to an embodiment, the protruding end comprises a sealing ring embedded in the center of the protruding end surface. According to these embodiments, the sealing ring mainly functions to seal the cavity between the rotary piston and the cylinder inner wall, prevents air leakage by friction and extends the service life. Further, the sealing ring can evenly apply the lubricating oil supplied from the oil pump to the inner wall of the cylinder on the inner wall, thereby reducing the friction between the cylinder wall and the rotary piston to achieve the lubricating action. be able to. By effectively reducing the coefficient of friction between the piston and the cylinder wall, it is possible to improve engine operating performance, reduce fuel consumption, and extend the useful life of the piston.

  According to a preferred embodiment, the protruding end has an arcuate surface. According to these embodiments, the arc surface comes into close contact with the inner wall of the cylinder and reduces friction during rotation. If there is a sharp end at the protruding end, such an end will collide between the rotary piston and the cylinder wall during rotation, causing damage to the rotary piston. Therefore, it is very beneficial to design the circular arc surface.

  The present disclosure also discloses an engine that applies the above-described rotary piston and includes a rotary piston, a cylinder, an air inlet and an air outlet on one side of the cylinder, and a spark plug fixed on the opposite side of the cylinder. Here, the rotary piston is arranged inside the cylinder, and fuel can be filled in a cavity between the rotary piston and the inner wall of the cylinder.

  An engine using a rotary piston provided in the present disclosure has the advantages of a simple but unroughened structure, strong availability, a low part count and a simple technical procedure. In addition, it is possible to save work and resources while reducing pollution to the manufacturing environment. Also, high temperature, high noise, wide friction area between piston surface and cylinder during operation, and piston wear or piston seizure after prolonged operation which influences engine performance and increases fuel consumption and exhaust emission The present disclosure can also provide a solution to technical deficiencies in existing technologies such as even the possibility. According to one embodiment, the rotary piston is driven by a crankshaft that drives a small planetary gear and a large planetary gear. According to these embodiments, in the air suction state, the power consumption of the rotary piston is reduced by ½ in order to reduce the work amount. In the state where compression is acting, the power consumption of the rotary piston increases by 1/3, and the compressed air reaches the minimum volume at the maximum density. When ignited and exploded, the large planetary gear and the small planetary gear can be arranged on a horizontal line of 180 degrees. When the small planetary gear moves a certain distance with the same mechanical boost lever, the rotary piston performs twice as much work, the output torque increases, and the horsepower transmitted from the engine can be increased. This achieves the goals of high efficiency, energy saving and environmental friendliness.

  According to one embodiment, there is a gap between the surface of the protruding end and the cylinder inner wall, and the sealing ring contacts the cylinder inner wall. According to these embodiments, the sealing ring functions to seal the cavity between the rotary piston and the inner wall of the cylinder, preventing air leakage due to frictional action and extending the service life. Furthermore, the sealing ring can evenly apply the lubricating oil supplied from the oil pump to the inner wall of the cylinder on the inner wall, thereby reducing the friction between the cylinder wall and the rotary piston to achieve the lubricating action. The By effectively reducing the coefficient of friction between the piston and the cylinder wall, it is possible to improve engine operating performance, reduce fuel consumption, and extend the useful life of the piston.

  According to an embodiment, the engine comprises a base and the cylinder is fixed above the base. According to these embodiments, the base is very useful and is primarily designed to secure the bottom of the engine to ensure normal, safe and reliable engine use.

  The present disclosure provides a rotary engine that features high efficiency, environmental friendliness, and energy saving operation. This provides a solution to Mazda's technical bottleneck, realizing low fuel consumption, low pollution, low emissions, low temperature, low noise and other technical advantages. Effectively, the wear resistance of the piston is improved, and the coefficient of friction between the piston and the cylinder wall is reduced. In addition, it reduces fuel consumption and prolongs the service life of the piston, while improving engine performance. In addition to reducing exhaust gas emissions from the engine, it is energy saving and environmentally friendly. It can bring great economic benefits to users and manufacturers.

  According to an embodiment, the piston engine comprises an outer shell, a crankshaft in the outer shell, and two sets of rotary pistons. The crankshaft has two ends and the two sets of rotary pistons are arranged symmetrically at the two ends of the crankshaft and separated by a holder. Such a structure is more stable and is an improvement over existing single rotary piston structures.

  According to one embodiment, the cylinder is configured with two sets of rotary pistons forming a symmetrical dumbbell structure. This realizes mutual conversion of potential energy. That is, when one rotary piston is operating at maximum load, the other rotary piston releases the stored potential energy, reducing the load on the operating rotary piston. In this way, mutual compensation of potential energy can be realized while the two sets of rotary pistons operate as a twin structure, and dynamic sound balance and stable operation can be provided. Furthermore, since the cylinders are arranged symmetrically, noise and vibration during operation of the engine are effectively reduced, and the service life of the engine can be extended. Noise reduction during engine operation is very beneficial.

  According to a preferred embodiment, the holder and the outer shell form an integral structure. This is more stable than the structure in which the holder and the outer shell are separated.

According to an embodiment, the rotary piston includes a combustion chamber having an elliptical vertical cross section and two side surfaces, a crankshaft, and a piston body in the combustion chamber. There is an air inlet at the top of one side of the combustion chamber and an air outlet at the bottom of the same side of the combustion chamber. And in the center on the opposite side of the combustion chamber is an embedded spark plug. According to an embodiment, the piston body is engaged with the crankshaft via an inner gear. According to one embodiment, similar to three round plates bent in the same direction, the piston body has a cross section with a 360 degree arc end and three 120 degree end faces. Each round plate forms a protruding end with a large head and a small tail. According to an embodiment, the head is a concave arc head. According to an embodiment, the entire tail is concave toward the head, and the head is concave toward the tail. According to an embodiment, an arc-shaped pressure receiving surface is formed between the two side surfaces of the protruding end and the apex angle of the piston body, and the area of the pressure receiving surface on the rotation side is larger than the other side. The ignition direction in the combustion chamber is perpendicular to the leading groove. The shock wave of the explosion pushes directly in the direction of the groove. The groove receives a unidirectional force like a fishing boat's sail, prevents explosion recoil and converts the impact energy into nearly 100 percent kinetic energy. In the small combustion space at the end, the arc-shaped pressure-receiving surface is inclined toward the top, so that recoil gas fuel remaining at the top can return to the combustion chamber without leaking backward. . Due to the structure of the large head and the small tail, the thrust along the head drives the rotation, and complete combustion in the combustion chamber is possible through multiple rotations. Thereby, CO ₂ emission reduction is realized.

  According to one embodiment, the protruding end comprises a sealing ring embedded in the center, which enhances the sealing effect and achieves smooth operation.

  According to an embodiment, the engine device comprises a crankshaft connected to a power output shaft via a planetary gear, and a flywheel power compensator is fixed on the power output shaft. According to these embodiments, the belt-wheel transmission structure of the existing engine device has been improved so that the entire structure is integrated with low noise. Since this integrated structure does not use a belt, the overall appearance has been improved. And there is no feedback when the belt slips due to rotational fatigue that leads to failure of the reaction turbine and fan, high temperatures of the car engine, fraying of the crankshaft bushings. The engine device of the present disclosure does not waste power, and can perform work requiring large power when the rotational speed of the engine is relatively low. Thus, the noise is low, the working time is shortened, the working loss is reduced, and the service life of the engine is extended. According to one embodiment, a circular flywheel power compensator with high strength and specific gravity is added on top of an existing gear disk. When the engine rotates during normal operation, the flywheel power compensator can generate a rotational inertia potential. When the rotary piston of the automobile engine is at top dead center, the rotary piston receives the maximum load. At this time, the flywheel power compensator releases the accumulated potential energy so that the peak load when the rotary piston is at top dead center can be overcome. In addition, since the flywheel power compensator has a larger diameter than the rotary engine piston, the potential energy produced by the flywheel power compensator is greater than the maximum operating load of the rotary piston. Therefore, the flywheel power compensator can effectively supply energy to the operation of the rotor, which makes the operation simpler and saves time and work.

  According to certain embodiments, the engine includes a cooling system coupled to the opposite end of the flywheel power compensator. The cooling system includes a water cooler. The water cooler circulates the cooling water via a water pump connected to one side of the water cooler. The water pump is driven by a crankshaft and a transmission gear. The water cooler includes a cooling fan fixed on the opposite side of the water cooler. According to these embodiments, the crankshaft moves to drive the water pump. The water pump circulates the cooling water. A cooling fan on the opposite side of the water cooler acts to enhance the cooling effect. Since the oil pump and the fan do not wear during use, normal and stable operation of the fan and the oil pump can be ensured.

  The piston engine and engine apparatus of the present disclosure have several advantages. Since the rotary pistons are arranged symmetrically, the vibration of the engine is effectively reduced, and the volume of the combustion space along the rotation direction is large, so that complete combustion is possible, and an effective sealing device is provided for the mechanical lever structure. With the addition, technical bottlenecks such as high temperatures, high noise, and excessive emissions from the engine can be eliminated.

It is a block diagram which shows the example of the rotary piston by various embodiment. It is a reference figure showing an example of an operating state of a rotary piston by various embodiments. It is a reference figure showing another example of an operating state of a rotary piston by various embodiments. FIG. 10 is a reference diagram illustrating still another example of an operating state of a rotary piston according to various embodiments. 1 is a structural diagram of an engine device according to various embodiments. FIG.

  In the following description of embodiments, reference is made to the accompanying drawings that form a part thereof. This is shown to illustrate certain embodiments of the disclosure that can be performed. It should be understood that other embodiments may be used and structural changes may be made without departing from the scope of the disclosed embodiments.

  According to an embodiment of the present disclosure, as shown in FIGS. A planetary gear 2 and a crankshaft 3 penetrating the small planetary gear are provided. The piston body 1 has three corners on its vertical cross section, each of which extends outwardly to form a protruding end 4, and is characterized by a 120 degree interval between adjacent protruding ends. Each protruding end 4 includes a compression groove 5 formed on one side of the protruding end and a combustion groove 6 formed on the opposite side of the protruding end.

  According to certain embodiments, the combustion groove is deeper than the compression groove.

  According to an embodiment, the protruding end comprises a sealing ring 7 embedded in the center of the protruding end surface.

  According to an embodiment, the protruding end has an arcuate surface.

In the above technical solution, the piston body engages the crankshaft via large and small planetary gears, and the piston body has three 120 degree end faces, resembling three round plates bent in the same direction. In addition, it has a vertical cross section with a 360 degree arc end. Each of the round plates forms a protruding end with a large head and a small tail, both the head and the tail form a concave arc, and the tail arc is concave toward the head as a whole, The arc at the top is concave toward the end. Between the head and tail of the protruding end and the apex angle of the piston body is an arc-shaped pressure receiving surface, and the area of the pressure receiving surface on the rotating side is larger than the opposite side. When the rotary piston is operated in the cylinder, a combustion chamber is formed between the rotary piston and the cylinder inner wall. The ignition direction in the combustion chamber is perpendicular to the leading groove. The shock wave of the explosion goes straight to the groove, and the groove receives a unidirectional force like a fishing boat's sail, preventing the recoil of the explosion. The impact energy is then converted to almost 100 percent kinetic energy. The combustion space having a small end has an arc-shaped pressure receiving surface inclined toward the leading portion so that the gaseous fuel recoiled at the leading portion can return to the combustion chamber without leaking backward. Due to the structure of a large head and a small tail, thrust along the head end drives rotation and allows complete combustion in the combustion chamber through multiple revolutions, thereby reducing CO ₂ emissions.

  According to an embodiment of the present disclosure, as shown in FIGS. 1 to 4, the present disclosure applies the above-described rotary piston to solve the defects of the existing technology, and the rotary piston and cylinder 8, and An engine comprising an air inlet 9 and an air outlet 10 on one side and a spark plug 11 fixed on the opposite side of the cylinder 8 is disclosed. Here, the rotary piston is arranged inside the cylinder, and the cavity between the rotary piston and the cylinder inner wall can be filled with the fuel 12.

  According to one embodiment, there is a gap between the protruding end surface and the cylinder inner wall, and the sealing ring is in contact with the cylinder inner wall.

  According to an embodiment, the engine comprises a base 13 and the cylinder is fixed above the base.

  According to these embodiments, the cylinder has an elliptical vertical cross section and two sides each having an upper part, a central part and a lower part. There is an air inlet at the top of one side of the cylinder and an air outlet at the bottom. In the center of the other side of the cylinder is an embedded spark plug.

  The present disclosure describes a piston engine that includes a cylinder, a crankshaft, and a piston body in the cylinder. The cylinder has an elliptical vertical cross section and two sides, each with an upper part, a central part and a lower part. One side of the cylinder has an air inlet at the top and an air outlet at the bottom, and a spark plug is embedded in the center on the other side of the cylinder. The piston body engages with the crankshaft via the inner gear. The piston body has a triangular vertical cross section with an arcuate end, and each end of the three corners of the piston body extends laterally to form a protruding end. Between the two side surfaces of the protruding end and the apex angle of the piston body is an arc-shaped pressure receiving surface, and the area of the pressure receiving surface on the rotating side is larger than that on the opposite side. Compared with the existing rotary engine, a large combustion chamber is formed in the rotational direction over the entire protruding end and the pressure receiving surface formed by them. This has two advantages. First, during operation, the fuel is rotated by the circular arc surface and is subjected to secondary combustion or repeated combustion, and complete combustion and reduction of pollutants in the exhaust gas are realized. As a result, combustion efficiency is higher and pollution is reduced. Secondly, the engine described in this disclosure with respect to how pressure is received has clearly greater transmission than current rotary engines because of the larger space and area for receiving pressure in the rotational direction. When the engine is ignited, it has explosive power at the rotation angle of the rotary piston and the linear orientation angle, so there is no recoil and cylinder knocking noise caused by a right angle impact of combustion explosion in the engine (such as Mazda). . Thus, the explosive force causes the rotor to act clockwise. As a result, it is avoided that the impact of the explosion is applied in all directions on both sides of the rotor. On the other hand, unburned fuel is retained and maintained at a high temperature. Thus, the present disclosure provides a solution to current technology bottlenecks such as high engine temperature, high noise, and high emissions.

  The present disclosure employs the mechanical lever principle. Based on the power required for ignition and engine operation, the lever moment is automatically adjusted to achieve a maximum moment for the operation of the engine's rotary piston and a minimum duty for fuel suction for operation, 1/2 moment is saved for fuel compression. The present disclosure also discloses a rotary piston incorporating directional explosions and shock waves, thermodynamic vertex combustion and dynamic combustion in the combustion chamber of the rotary piston, and an engine comprising the rotary piston. Highly efficient, environmentally friendly and energy-saving rotary engine pistons have an explosive force in an orientation angle that is in line with the rotation angle of the rotary piston when the engine is ignited. Eliminates recoil and cylinder knocking noise caused by directional impacts. And the explosive force causes the rotor to act clockwise, and as a result, the impact of the explosion in all directions on both sides of the rotor is avoided. The unburned fuel is held and the high temperature is maintained. Thus, the present disclosure has solved bottlenecks in current technology such as high engine temperature, high noise, and large emissions. In addition, the engine is easy to use and easy to operate and achieves low fuel consumption, low pollution, low emissions, low temperature and low noise. Also, the wear resistance of the piston is effectively enhanced and the coefficient of friction between the piston and the cylinder wall is reduced. Furthermore, fuel consumption is reduced, and the operating performance of the engine is improved while the service life of the piston is extended. In addition to reducing exhaust emissions from the engine, this engine is energy-saving and environmentally friendly.

  In actual use, the rotary piston described in the present disclosure and an engine including the rotary piston can provide the following economic advantages.

  (1) For a manufacturing enterprise that manufactures 5 million engines annually, conventional engine technology requires 5 billion tons of steel. If the price per ton is RMB 3,750, it will cost RMB 18.750 trillion.

  (2) For a manufacturing enterprise that manufactures 5 million rotary engines per year, if 80% of steel can be saved in each engine, 4 billion tons of steel will be saved out of 5 billion tons. Only 1 billion tonnes of steel are needed to meet demand. In this way, RMB 15 trillion can be saved.

  (3) If 1000 kWh of electricity is needed to make 1 ton of steel, 5 trillion kWh is needed to produce 5 billion tons, and if the cost of 1 kWh of electricity is 0.58 yuan, RMB2.9 trillion is saved.

  (4) If 1 KWh of electricity causes about 0.96 kg of carbon emission, 5 trillion KW will discharge 4.8 trillion kg of carbon. Compared to the engine provided by the current technology, the engine of the present disclosure reduces carbon emissions and becomes a solution to the pollution problem of PM2.5, which is a huge social and economic for the country's energy saving and emission reduction Profit.

  (5) If one rotary engine car travels 30,000 km annually, each one travels 300,000 km in 10 years. If you consume 10 liters of gasoline for 100 km and save 30% of gasoline, you save 3 liters every 100 km, save 0.03 liters per km, and 300,000 km. 9,000 liters are saved. If one liter of gasoline is RMB8, it can save RMB72,000 in 10 years per car, and 5 million cars can save RMB360 billion.

  FIG. 1 is a structural diagram illustrating an example of a rotary piston according to various embodiments, illustrating air suction during use of the engine. 2 and 3 are reference views illustrating examples of operating states of a rotary piston according to various embodiments, showing ignition and heating with compression during use of the engine. FIG. 4 is a reference diagram showing another example of the operating state of the rotary piston according to various embodiments, and shows exhaust during use of the engine. As described in the technical solutions described above and shown in FIGS. 1-4, the rotary piston provided in this disclosure is a completely new creative concept that replaces current reciprocating engines as well as rotary engines in an environment. Easy high-tech product. As previously mentioned, this product provides significant economic benefits, and the technical solution effectively enhances the wear resistance of the piston and reduces the coefficient of friction between the piston and cylinder wall. It also reduces the fuel consumption and improves the operating performance of the engine while extending the useful life of the piston. In addition to reducing exhaust gas emissions from the engine, it is energy saving and environmentally friendly.

  According to an embodiment of the present disclosure, as shown in FIG. 5, the piston engine includes an outer shell 14, a crankshaft 27 in the outer shell 14, and two sets of rotary pistons 16-1 and 16-2. Have two ends, and two sets of rotary pistons 16-1 and 16-2 are symmetrically arranged at both ends of the crankshaft 27 and are separated by the holder 15. One end of the crankshaft 27 is connected to the power output shaft 21, and the other end is connected to the engine oil system and the cooling water system via a transmission gear structure. In FIG. 5, 16-1 and 16-2 are two rotary pistons 16 arranged symmetrically next to the holder 15, and due to the symmetry thereof, the opposing kinetic energy of the rotary pistons during movement is obtained. It is possible to cancel, thereby reducing engine vibration. The holder and the outer shell form an integrated stable structure, which is more effective.

  Each rotary piston in these embodiments operates in a cylinder, and the rotary piston and the cylinder form the same structure as the above-described piston engine structure. According to these embodiments, the structure comprises a cylinder having an elliptical vertical cross section and two sides each having an upper part, a central part and a lower part, a crankshaft, and a piston body in the cylinder. . One side of the cylinder may have an air inlet at the top and an air outlet at the bottom. A spark plug embedded in the center part may be provided on the opposite side surface of the cylinder. The piston body can engage with the crankshaft via the inner gear. The piston body may have a triangular cross section with an arc end. The tips of the three corners of the piston body extend laterally to form two projecting ends, and a pressure receiving surface is formed between the two side surfaces of the projecting ends and the apex angle of the piston body. Here, the area of the pressure-receiving surface on the rotation side is larger than the area on the opposite side.

  Further, the protruding end may have a sealing ring embedded in the center of the end surface of the protruding end.

  According to an embodiment, the engine of the present disclosure may have a dumbbell structure with two pistons. This structure facilitates dynamic balance and potential energy complementation between the two rotors of the engine. The two pistons are connected by a fixed shaft and can be arranged symmetrically at both ends of the central shaft to balance the weight. Each of the two pistons operates at −180 degrees and +180 degrees, and a complementary relationship can be realized during each operation. The output and stability of the dumbbell-type double rotor structure is equivalent to that of the existing 6-cylinder engine, but the fuel consumption is only 1/3 and the emission is reduced by 60%.

  According to an embodiment, as shown in FIG. 5, the engine device includes a crankshaft connected to a power output shaft via a planetary gear, and a flywheel power compensator is fixed on the power output shaft. A flywheel power compensator 22 can be fixed to one end of the crankshaft 27 via a planetary gear 25. A preferred embodiment of the flywheel power compensator 22 is disclosed in Chinese Patent Application No. 92208890. X. The power compensator described in the specification. The power compensator can allow the engine of the present disclosure to perform at half power the work that current engines used in industry perform at full power. On the other hand, the idling speed of the engine can be reduced by half to about 400 speeds, and fuel by idling can be saved by half.

  According to certain embodiments, the engine may have a cooling system connected to the opposite end of the flywheel power compensator. The cooling system may include a water cooler. The water cooler can circulate the cooling water through a water pump connected to one side of the water cooler. The water pump can be driven by a crankshaft and a transmission. The water cooler may comprise a cooling fan fixed on the opposite side of the water cooler. The crankshaft 27 can drive two devices, a cooling device and a lubrication device, through a shaft front end 29 at the opposite end of the flywheel power compensator 22. The cooling device may include a water pump 32, a cooler, and a cooling fan. The cooler can circulate cooling water via the water pump 32. The water pump 32 can be connected to the gear transmission at the shaft front end 29 via an oil pump gear and can thus be driven directly by the crankshaft 27 of the engine. Therefore, the engine and the cooling device can be operated simultaneously. The cooling systems currently used in the industry are driven by complex belt wheels. The present disclosure simplifies the structure and makes it easier to manufacture and use. The lubricating device may include an oil sump at the bottom of the outer shell 14 and an oil pump gear engaged with the gear at the shaft front end 29. This is the same as that used in existing technology.

  Except for the above features, the rotary engine of the present disclosure is the same as the rotary engine in the existing technology.

  The present disclosure provides a piston engine and an engine device including the piston engine. Under the same output conditions, the piston engine of the present disclosure is characterized by a simpler structure, with 60% less parts, 1/3 size, and 1/5 weight reduction than existing piston engines. On the other hand, there is no exposed belt for connecting the water pump 32 to the cooling fan 36, resulting in a fully built-in engine cooling system. The piston engine of the present disclosure has the advantages that the number of parts is small, the technical procedure is simple, and the manufacture is easy. It also saves work and resources, and reduces pollution to the manufacturing environment.

  Reference numerals in FIGS. 1 to 5 indicate the following.

1. Piston body Planetary gear Crankshaft 4. 4. protruding end Compressed groove 6. 6. Combustion groove Seal ring 8. Cylinder 9. Air inlet 10. Air outlet 11. Spark plug 12. Fuel 13. Base 14. Outer shell 15. Holder 16. Rotary piston 17. Connecting plate 18. Fixing bolt 19. Gear box 20. Transmission lever 21. Power output shaft 22. Flywheel power compensator 23. Flywheel gear 24. Clutch 25. Planetary gear 26. Shaft bushing 27. Crankshaft 28. Oil sump 29. Shaft front end 30. Water inlet 31. Oil pump gear 32. Water pump 33. Water pump gear 34. Outflow pipe 35. Water cooler 36. Cooling fan 37. Fan motor 38. Power supply to fan motor 39. Starter 40. Starter power supply 41. Spark plug 42. Combustion chamber

  Although the disclosed embodiments have been fully described with reference to the accompanying drawings, it should be noted that various changes and modifications will become apparent to those skilled in the art. Such changes and modifications are to be understood as being included within the scope of the disclosed embodiments as defined by the appended claims.

Claims (20)

A piston body having a triangular vertical cross-section;
A large planetary gear and a small planetary gear that are engaged with each other, fixed at the center of the piston body;
A crankshaft penetrating the small planetary gear;
A rotary piston comprising:
Three corners of the triangular cross section extend outward to form protruding ends, adjacent protruding ends form an angle of 120 degrees, and two side surfaces of each protruding end form a compression groove and a combustion groove, respectively. A rotary piston.   The rotary piston according to claim 1, wherein the combustion groove is deeper than the compression groove.   The rotary piston according to claim 1, wherein each protruding end includes a sealing ring embedded in the center of the surface of the protruding end.   The rotary piston according to claim 1, wherein each protruding end has an arc surface. The rotary piston according to claim 1,
A cylinder having two sides;
An engine comprising
One side of the cylinder includes an air inlet and an air outlet, and the other side of the cylinder includes an embedded spark plug;
The rotary piston is disposed inside the cylinder;
An engine capable of filling fuel in a cavity between the rotary piston and the inner surface of the cylinder.   The engine according to claim 5, further comprising a base, wherein the cylinder is fixed above the base. The rotary piston according to claim 3,
A cylinder having two sides;
An engine comprising
One side of the cylinder includes an air inlet and an air outlet,
The other side of the cylinder comprises an embedded spark plug,
The rotary piston is disposed inside the cylinder;
An engine capable of filling fuel in a cavity between the rotary piston and the inner surface of the cylinder.   The engine according to claim 7, wherein there is a gap between the surface of the protruding end and the inner surface of the cylinder, and the sealing ring contacts the inner surface of the cylinder.   The engine according to claim 7, further comprising a base, wherein the cylinder is fixed above the base. The outer shell,
A crankshaft in the outer shell;
A piston engine comprising two sets of rotary pistons,
The piston engine, wherein the crankshaft has two ends, and the two sets of rotary pistons are arranged symmetrically at the two ends of the crankshaft and separated by a holder.   The piston engine according to claim 10, wherein the two sets of rotary pistons have a symmetrical dumbbell structure.   The piston engine according to claim 10, wherein the holder and the outer shell have an integral structure.   Each set includes a cylinder having two side surfaces and surrounding the crankshaft and the piston body, and has an air inlet and an air outlet on one side of the cylinder and is embedded on the other side of the cylinder. The piston engine of claim 10, wherein there is a spark plug.   The piston engine of claim 13, wherein the piston body engages the crankshaft via an inner gear.   The piston engine of claim 13, wherein the piston body has a triangular vertical cross section with an arcuate end, and the three corners of the piston body spread laterally at the tip of the corner to form a protruding end.   An arc-shaped pressure receiving surface is formed between the two side surfaces of the protruding end and the corner apex of the piston body, and the area on the rotation side of the pressure receiving surface is larger than the other side. The described piston engine.   The piston engine of claim 15, wherein a sealing ring is embedded in the center of each protruding end.   11. An engine apparatus comprising the piston engine according to claim 10, wherein the crankshaft is connected to a power output shaft via a planetary gear, and a flywheel power compensator is fixed to the power output shaft. apparatus.   The engine apparatus according to claim 18, wherein the piston engine comprises a cooling system coupled to an end remote from the flywheel power compensator.   The cooling system includes a water cooling device that circulates cooling water through a water pump connected to one side of the cooling system, and the water pump is driven by the crankshaft and a transmission device, and is cooled on the other side of the water cooling device. The engine device according to claim 19, wherein the fan is fixed.

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