Rotational Combustion Engine Cam Offset and Dynamics
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Solution Overview
Problem
Internal combustion engines face challenges in achieving high horsepower with low energy consumption, efficient torque production, and reduced size and weight, while also addressing issues of emissions and reliability, particularly in reciprocating and piston-less rotary engines.
Innovation Solution
A rotational combustion engine design featuring a first and second cam arranged at an angle on a vertical plane with a horizontal offset, rotating in unison, and connected through a ball and socket fastener, with pistons moving within cylinders to convert reciprocal motion into rotational motion, utilizing a driving shaft and camshafts to control valve opening and closing, and generating power with reduced energy input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If reciprocating engines are used to generate power, then horsepower can be produced, but the engine requires a large and heavy engine block, driving shaft, camshafts, and timing belts which increase size, weight, and cost
Solution Approach 1:
The patent removes the traditional reciprocating piston mechanism from the engine design. Instead of using pistons moving within cylinders, the invention uses a rotor with combustion chambers that rotate directly, eliminating the need for connecting rods, crankshafts, and traditional valve train components. This extraction of the reciprocating mechanism simplifies the overall engine structure while maintaining power generation capability.
Solution Approach 2:
The patent inverts the traditional approach by having the combustion chambers rotate with the rotor rather than having pistons reciprocate within stationary cylinders. The rotor itself becomes the moving combustion chamber, and the stationary stator contains the valves and fuel injection systems. This inversion transforms linear reciprocating motion into direct rotational motion, eliminating multiple intermediate components.
2Power
If reciprocating engines are used, then power can be generated, but the engine produces very low torque at low RPM and requires high RPM to work efficiently
Solution Approach 1:
The patent employs dynamic combustion chamber volumes that change continuously as the rotor rotates. The combustion chamber volume varies from minimum at the apex to maximum at the port, creating dynamic compression and expansion ratios throughout the rotation cycle. This dynamic volume change enables effective torque production across a broader RPM range, particularly improving low-RPM torque compared to traditional engines with fixed compression ratios.
Solution Approach 2:
The invention changes the compression ratio parameter dynamically through rotor position. As the rotor rotates, the compression ratio varies from approximately 6:1 at minimum volume to 2:1 at maximum volume. This parameter change allows the engine to maintain effective combustion and torque production across different operating conditions and RPM ranges, rather than being optimized for a single operating point.
3Power
If Wankel rotary engines are used to reduce parts, then horsepower by volume increases, but fuel economy becomes poor due to incomplete combustion and emissions increase
Solution Approach 1:
The patent replaces the traditional Wankel mechanical sealing system with a different approach. Instead of relying on apex seals that slide against the housing (which cause incomplete combustion and emissions), the invention uses a rotor design where combustion chambers are sealed by the rotor geometry itself and controlled by port timing. This substitution eliminates the sealing issues inherent in Wankel engines while maintaining the compact rotary configuration.
Solution Approach 2:
The invention ensures continuous and complete combustion through optimized port timing and continuous rotor rotation. The combustion process is maintained throughout the entire rotation cycle with proper fuel injection timing and air-fuel mixture management, eliminating the incomplete combustion that plagues Wankel engines. This continuous action ensures complete fuel burnout, reducing unburned hydrocarbons in the exhaust.
4Reliability
If traditional engine components are used, then reliability can be maintained, but the cost to build and maintain the engine increases
Solution Approach 1:
The patent segments the engine into distinct functional modules: a rotating rotor containing combustion chambers, a stationary stator containing valves and fuel injection, and a separate lubrication system. This segmentation allows each component to be optimized and manufactured independently, simplifying production and maintenance. The rotor can be replaced or serviced without affecting the stator components, reducing overall maintenance costs while maintaining reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The engine efficiently converts centripetal and reciprocal forces into rotational motion, reducing the need for high RPM and energy consumption, improving torque production, and enhancing reliability and emissions performance.
Implementation Method 1
The plurality of inlet camshafts and outlet camshafts having one or more lobes wherein when the plurality of inlet camshafts and outlet camshafts spin, the lobes are configured to open and close the plurality of intake valves and exhaust valves in time with the motion of the pistons
Implementation Method 2
The internal combustion engine is a type of engine that generates motive power by the burning of gasoline, oil, or other fuel, in a confined space called a combustion chamber. This reaction of a fuel with an oxidizer creates gases of high temperature and pressure
Implementation Method 3
This reaction of a fuel with an oxidizer creates gases of high temperature and pressure, which are permitted to expand, directly causing movement by acting to drive a series of pistons to transfer force to the motor
Data Source
AI summary
A rotational combustion engine that generates force from the reciprocal motion and centripetal motion of one or more pistons that is then converted into rotational motion of a first cam and second cam wherein the cams are separated by a 2-3 degree horizontal offset and an angle of 60 degrees as well as camshaft assembly and driving shaft to provide power to an entity such as an automobile.