Cam-Driven Power Generator With Speed-Based Wheel Switching
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Solution Overview
Problem
Existing power generation systems using hydroelectric and wind power cannot adjust torque applied to the rotation body and wheel diameter based on rotational speed, limiting efficiency.
Innovation Solution
A power generation system that includes a cam device with a cam member rotated by hydroelectric or wind power, an arm mechanism that contacts either a large- or small-diameter wheel, and operation control means to switch between modes based on rotational speed, adjusting wheel contact to optimize torque and speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single wheel is used for the arm mechanism contact, then the structure is simple, but the torque and wheel diameter cannot be adjusted according to rotational speed
Solution Approach 1:
The single wheel is segmented into multiple wheels with different diameters (first wheel, second wheel, third wheel, fourth wheel). The arm mechanism can selectively contact different wheels based on rotational speed, enabling torque and diameter adjustment while maintaining manageable structural complexity through modular design.
Solution Approach 2:
The system transitions from a static single-wheel configuration to a dynamic multi-wheel configuration where the contacted wheel changes based on rotational speed. The control unit dynamically selects which wheel the arm mechanism contacts, allowing the system to adapt torque output to varying operational conditions.
2Speed
If a large-diameter wheel is used initially, then large torque is applied, but rotational speed cannot be maintained or increased after reaching a certain value
Solution Approach 1:
The system changes the physical parameter of wheel diameter based on rotational speed thresholds. When rotational speed reaches a predetermined value, the control unit switches the arm mechanism from contacting a large-diameter wheel to a small-diameter wheel, thereby changing the torque parameter to maintain or increase rotational speed.
Solution Approach 2:
The system employs periodic switching between different wheel diameters based on rotational speed cycles. As the rotation body accelerates, the system periodically transitions between wheel contacts to optimize performance at different speed ranges, creating a stepped control pattern.
3Speed
If the wheel diameter is reduced to maintain rotational speed, then speed is preserved, but torque application capability decreases
Solution Approach 1:
Each wheel is designed with dual functionality: large-diameter wheels provide high torque for acceleration phases, while small-diameter wheels maintain rotational speed during steady-state operation. The multi-wheel system universally handles both torque application and speed maintenance requirements that a single wheel cannot satisfy alone.
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 system maintains or increases rotational speed by applying a large torque initially and reducing wheel diameter when necessary, enhancing energy conversion efficiency.
Implementation Method 1
a cam device including a cam member of which a cam protrudes from an outer circumferential surface, the cam member being rotated by hydroelectric power or wind power
Implementation Method 2
the arm mechanism comes into contact with an outer circumferential surface of either the small-diameter wheel or the large-diameter wheel during rotation of the arm mechanism, and thus the rotation body is rotated
Implementation Method 3
power is generated by converting rotational energy of the rotation body into electric energy
Data Source
AI summary
Provided is a power generation system capable of reducing an outer diameter of a wheel with which an arm mechanism is brought into contact after a rotational speed of a rotation body increases to a first value by applying a large torque to the rotation body until the rotational speed of the rotation body increases to the first value. A power generation system 1 of the present invention is a power generation system in which a cam member 7 is rotated by hydroelectric power or wind power to bring a cam 6 into contact with an arm mechanism 3 and to rotate the arm mechanism 3, and the arm mechanism 3 comes into contact with either of wheels 42 and 41 of a rotation body 44 during the rotation of the arm mechanism 3 to rotate the rotation body 44. The power generation system 1 includes operation control means for transitioning to an operation in a second mode in which the arm mechanism 3 is brought into contact with a small-diameter wheel 41 in response to an increase in a rotational speed of the rotation body 44 to a first value during an operation in the first mode in which the arm mechanism 3 is brought into contact with the large-diameter wheel 42, and transitioning to the operation in the first mode in response to a decrease in the rotational speed of the rotation body 44 to a second value during the operation in the second mode.