Rocker arm internal combustion engine
By redesigning the cylinder as an annular shape with a rotor and employing rocker arm reset methods, the efficiency and fuel utilization of internal combustion engines are enhanced, addressing the conversion and reset challenges, resulting in improved thermal efficiency and broader applications.
Patent Information
- Application Number
- JP2025527061
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-11-10
- Filing Date
- 2023-03-28
- Publication Date
- 2026-02-13
AI Technical Summary
Conventional piston-type internal combustion engines face challenges in converting reciprocating piston motion to circular motion and efficiently resetting the piston, as well as effectively utilizing the power output.
The cylinder is designed as an annular shape with a disk (rotor) replacing the inner wall, allowing the piston to rotate via a rocker arm, and the rocker arm is reset through various avoidance methods, including radial, deflection, and axial avoidance, or fixed arms deforming to accommodate the rocker arm.
Rocker arm internal combustion engines achieve twice the thermal efficiency, utilize more fuel, offer smoother operation, wider power adjustment, and have a simpler structure, with applications in pressure systems and turbofan engines.
Smart Images

Figure 2026505221000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to power machines such as internal combustion engines, pressure systems, turbofan engines, automobiles, agricultural machines, ships, and aircraft. [Background technology]
[0002] Energy conservation, emission reduction, and a low-carbon economy are the main trends in global development. While countries around the world are working to develop new energy-saving technologies, global energy consumption is still on the rise, with China alone expected to consume 700 million tons of oil by 2022. If that consumption could be halved, it would result in a reduction of 350 million tons. At 4,000 yuan (CNY) per ton, this would amount to a savings of 14,000 billion yuan and a reduction of approximately 1 billion tons of carbon dioxide emissions. Summary of the Invention [Problem to be solved by the invention]
[0003] It is easy to convert the reciprocating piston motion of a conventional piston-type internal combustion engine into a circular motion, namely by designing the cylinder to be annular (Fig. 1). However, once the piston has reached its lower position (end of operation), how to return it to its pre-operation state (reset) becomes a problem, as does how to output power. [Means for solving the problem]
[0004] First, to output power to the piston, which moves in a circular motion, the inner wall of the cylinder is removed (shaped like a tire (Figure 2)) and a disk (rotor) (Figure 3) is inserted in place of the inner wall. This allows the piston (rocker arm) to rotate the rotor. Next, regarding the issue of resetting the rocker arm, there are two ways to reset the rocker arm. The first method is to have the rocker arm "avoid" the fixed arm (deform the rotor). There are three avoidance forms: 1) radial avoidance. In other words, the rocker arm retreats into the rotor (Figure 4), passes over the fixed arm, and then extends again. 2) deflection. In other words, the rocker arm "falls down" (Figure 5), passes over the fixed arm, and then rises up. 3) axial (lateral) avoidance. In other words, the rocker arm passes through the cover (which also rotates in sync with the rotor), leaves the inside of the cylinder block (Figure 6), passes over the fixed arm, and then re-enters the cylinder block. The second method is to have the fixed arms "avoid" the rocker arms (deform the cylinder block) (this method is not recommended as it increases the volume of the cylinder block). There are three avoidance configurations: 1. Radial avoidance. That is, the fixed arms "pass" through the cylinder block, i.e., leave the interior of the cylinder block, and then retract back inside after the rocker arms have passed (Figure 7). In this configuration, there are more fixed arms than rocker arms, and the combustion chamber rotates along with the rotor. 2. Rotational avoidance. That is, the fixed arms "fall down," and after the rocker arms rotate, other fixed arms replace them (Figure 8). 3. Axial (lateral) avoidance. The fixed arms pass through the cover, leave the interior of the cylinder block, and enter the cylinder block after the rocker arms have rotated. In this configuration, there are more fixed arms than rocker arms. [Effects of the Invention]
[0005] Rocker arm internal combustion engines have the following advantages over piston-type internal combustion engines: 1. High thermal efficiency. The biasing force of a rocker arm internal combustion engine is applied directly to the rocker arm without being converted. The force transmitted by the piston to the crankshaft of a piston-type internal combustion engine is constantly changing, resulting in only about half of the total force being transmitted to the crankshaft. In other words, the thermal efficiency of a rocker arm internal combustion engine is twice that of a piston-type internal combustion engine. 2. More usable fuel is available. A piston-type internal combustion engine operates intermittently, requiring ignition each time it operates, resulting in deflagration. Since the combustion chambers of a rocker arm internal combustion engine are constantly burning, even low-quality fuel can be used once ignition is successful. 3. A wide power adjustment range is available. Each combustion chamber of a rocker arm internal combustion engine can be opened and closed independently to achieve different gears (generally opened and closed in pairs to achieve balance), and some types are even capable of continuously variable speeds. 4. Smoother operation. When using similar fuels, rocker arm internal combustion engines have a more complete combustion, while piston-type internal combustion engines cannot ignite if the fuel concentration in the mixed gas is too low, a problem that rocker arm internal combustion engines do not have. 5. The structure is relatively simple. It is easier to scale up. 6. The range of applications is wider. Rocker arm internal combustion engines can also be used in pressure systems, such as in hydroelectric power plants instead of turbines, or in the inner ducts of turbofan engines. 7. Can be fitted. In a tilting rocker arm internal combustion engine, another rocker arm internal combustion engine can be fitted to the rotor to increase rotational speed, and the fitted rotor becomes the cylinder block into which the rotor is fitted. 8. There are many variations in external shape. It can be elongated or flat. [Brief explanation of the drawings]
[0006] [Figure 1] FIG. 1 shows an annular cylinder. [Figure 2] FIG. 2 is a diagram showing a tire-shaped cylinder block. [Figure 3]FIG. 1 is a cross-sectional view of a tire-shaped cylinder block fitted with a rotor. [Figure 4] FIG. 1 shows the basic principle of a telescoping rocker arm internal combustion engine, in which the rocker arm retracts into the rotor, then bypasses (goes over) the fixed arm and extends out when it reaches the combustion chamber. [Figure 5] 1 is a diagram illustrating the principle of a tilting rocker arm internal combustion engine. [Figure 6] 1 is a diagram illustrating the principle of a continuously variable speed internal combustion engine. [Figure 7] 1 is a diagram showing the principle of a telescopic fixed arm internal combustion engine. [Figure 8] FIG. 1 is a diagram illustrating the principle of a main / sub-wheel type internal combustion engine. [Figure 9] FIG. 1 shows the principle of a four-chamber telescopic rocker arm internal combustion engine. [Figure 10] FIG. 1 shows a cross-sectional view of the rotor of a four-chamber telescopic rocker arm internal combustion engine. [Figure 11] 1 is a diagram illustrating the principle of a tilting rocker arm internal combustion engine. [Figure 12] 1 is a diagram showing components of a retractable rocker arm internal combustion engine. FIG. [Figure 13] 1 is a diagram showing the basic structure of a continuously variable speed rocker arm internal combustion engine. FIG. DETAILED DESCRIPTION OF THE INVENTION
[0007] The most preferred embodiment of the present invention The telescopic rocker arm internal combustion engine (Figure 9) mainly consists of a cylinder block, rotor, cover, output shaft, oil pump, electric injector, spark plug, and compressor. The cylinder block is annular, with four intake and four exhaust ports on its top surface. Four fixed arms are evenly spaced between the cylinder block and the rotor. The fixed arms support the rotor exactly in the center. The rotor is cylindrical, with a diameter three-quarters of the inner diameter of the cylinder block. Twelve rectangular grooves are cut evenly along the rotor's radius, each of which can accommodate one rocker arm. A hole is drilled at the rotor's axis (Figure 10). The diameter of the hole is slightly smaller than one-third of the rotor diameter; the "slight" length is used to create an engagement hole. The engagement hole locks the rocker arm and prevents it from being sucked into the vacuum chamber. The depth of the hole is half the axial length of the rotor. These holes separate the rotor into eight chambers, each connected to twelve rocker arm grooves. The eight chambers are fixed and do not rotate with the rotor. The eight chambers are connected to the oil pump by a cover, four of which are high-pressure chambers and the other four are vacuum chambers, evenly alternating. The oil pump maintains the pressure difference between the high-pressure and vacuum chambers. When the rotor grooves rotate until they are connected to the high-pressure chambers, the rocker arms in the grooves are pushed out. When the rotor grooves rotate until they are connected to the vacuum chambers, the rocker arms in the grooves are sucked into the rotor. When the internal combustion engine is running, the rocker arms are sucked in and pushed out, just bypassing the fixed rocker arms. New rocker arms are constantly added to the combustion chamber to replace the previous ones.
[0008] Examples of the present invention A retractable rocker arm internal combustion engine (Figure 11) mainly consists of a cylinder block, rotor, cover, and output shaft (Figure 12). The rotor is connected to the cover by the output shaft. After the cover and cylinder block are fixed, the rotor can be held in the center of the cylinder block. The rotor has eight rocker arms, connected via pins. When all the rocker arms on the rotor are closed, they form a circle with a notch. If there is no engagement point, they rotate against the center of the cylinder block, dividing the cylinder block into two chambers. If there is an engagement point, the rotor rotates until it touches the engagement point, opening the rocker arms. When the rocker arms are fully open, they form an enclosed space called the combustion chamber. When pressure is present in the combustion chamber, the rocker arms are driven to rotate the rotor. When the rocker arms rotate past the exhaust port in the cylinder block, they form an enclosed space with their arc-shaped surfaces, causing the rocker arms to close and enter the combustion chamber again. To allow the rocker arm to open smoothly in the combustion chamber without compressing the air on the arc surface of the rocker arm, it is necessary to enlarge the axial direction of the combustion chamber so that air can be discharged from both sides of the rocker arm when it opens, and the recessed groove in the cover shown in Figure 12 is designed to achieve this. The retractable rocker arm internal combustion engine may be used in place of a turbine in a hydroelectric power plant, or in the inner duct of a turbofan engine, or another rocker arm internal combustion engine may be fitted to the rotor.
[0009] Example 2 of the present invention A continuously variable internal combustion engine (Figures 6 and 13) mainly consists of a cylinder block, rotor, front cover (rocker arm passage), rear cover, oil pump, electric injector, output shaft, spark plug, and compressor. The cylinder block is annular, with two intake and two exhaust ports on its top surface. The front cover is located between the high-pressure chamber and the vacuum chamber and the cylinder block. There are two high-pressure chambers and two vacuum chambers, arranged alternately. The front cover has a "passage" that is just large enough for the rocker arm to pass through. When the rocker arm is not inserted, the "passage" maintains communication between the inside of the cylinder block and the high-pressure or vacuum chamber when the front cover rotates to a certain angle, and the high-pressure and vacuum chambers maintain a constant pressure difference through the oil pump. When the passage in the front cover is connected to the vacuum chamber, the rocker arm leaves the inside of the cylinder block and is sucked into the front cover. When the passage in the front cover is connected to the high-pressure chamber, the rocker arm is pushed out of the passage, enters the combustion chamber, and hits the rear cover. The rear cover is movable in the axial direction, which determines the depth to which the rocker arm penetrates the cylinder block, i.e., the axial width of the combustion chamber. The rocker arm is pushed by the pressure in the combustion chamber, driving the rotor to rotate. For a given amount of oil and gas injected, the wider the combustion chamber, the lower the rotation speed and the greater the moment experienced by the rotor. By moving the rear cover in the axial direction, i.e., adjusting the axial width of the combustion chamber, infinitely variable speed of the rotor can be achieved.
Claims
1. A rocker arm internal combustion engine is a machine that outputs power, It mainly has two main bodies: a cylinder block and a rotor. The rotor is attached to the inside of the cylinder block, The cylinder block is provided with a fixed arm, and the rotor is provided with a rocker arm. The cylinder block, fixed arm, rotor, rocker arm and cover form an enclosed space called the combustion chamber, which is used to drive the rotation of the rotor. A rocker arm internal combustion engine.
2. The machine has at least one combustion chamber therein, which causes the rocker arms to perform an arcing motion or actuation.
2. The rocker arm internal combustion engine according to claim 1.
3. The rocker arms or fixed arms enter the combustion chamber in sequence to seal it, The form of entry into the combustion chamber is: A rocker arm internal combustion engine in which the rocker arm moves relative to the rotor and enters the combustion chamber by moving is called a modified rotor rocker arm internal combustion engine. A rocker arm internal combustion engine in which the fixed arm moves relative to the cylinder block and moves to enter the combustion chamber is called a modified cylinder block rocker arm internal combustion engine, and includes two types of forms: The deformation direction of the rocker arm or fixed arm is in three directions: the turning direction, the lateral direction, and the radial direction.
3. The rocker arm internal combustion engine according to claim 1 or 2.
4. The combustion chamber is provided with a spark plug, an oil outlet, and an intake port, and the cylinder block or cover is provided with an exhaust port.
4. A rocker arm internal combustion engine according to claim 1, 2 or 3.
5. The rotor and rocker arm are not rigidly connected. The rocker arm is movable relative to the rotor.
5. A modified rotor rocker arm internal combustion engine according to claim 1, 2, 3 or 4.
6. a rocker arm on the rotor retractable to the center of the rotor and communicating with a chamber at the center of the rotor; The chambers consist of a high-pressure chamber and a negative-pressure chamber, which are arranged alternately. The rocker arm is pushed out when it is connected to a high pressure chamber, and the rocker arm is sucked in when it is connected to a negative pressure chamber.
6. A rocker arm internal combustion engine according to claim 1, 2, 3, 4 or 5.
7. The rotor and rocker arm are connected via a pin. One end of the rocker arm is rotatable about a pin; When the rocker arms of the rotor are all closed, both the projected and radial cross sections can form a notched circle.
6. A rocker arm internal combustion engine according to claim 1, 2, 3, 4 or 5.
8. The rocker arm is movable in the axial direction of the rotor, and the rear cover is also movable in the axial direction, thereby changing the size of the combustion chamber in the axial direction and further changing the stress area of the rocker arm, thereby achieving the function of continuously variable transmission.
6. A rocker arm internal combustion engine according to claim 1, 2, 3, 4 or 5.
9. The cylinder block and the fixed arm on the cylinder block are not rigidly connected, The fixed arm is attached to the rocker arm and is movable to keep the combustion chamber sealed.
5. The modified cylinder block rocker arm internal combustion engine according to claim 1, 2, 3 or 4.
Citation Information
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