Adjustable CVT Clutch Weight for RPM and Acceleration Tuning
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Solution Overview
Problem
Current CVT clutches lack an effective mechanism for adjusting clutch weights, limiting the ability to tune clutch operation for optimal power and RPM adjustments.
Innovation Solution
An adjustable mass clutch weight design featuring an elongate body with threaded protrusions and mass adjustment weights, allowing for customizable mass distribution through threaded apertures and recesses, including magnets for additional weight, to optimize CVT clutch performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed mass clutch weights are used, then the clutch structure is simple, but the ability to tune clutch operation for optimal power and RPM is limited
Solution Approach 1:
The clutch weight structure transitions from a fixed mass design to a dynamic, adjustable mass design. The elongate body incorporates threaded protrusions that allow mass adjustment weights to be positioned at different locations along the body, enabling the clutch operation to be tuned for different power and RPM requirements while maintaining a relatively simple overall structure.
2Ease of operation
If adjustable mass weights are added to the clutch, then tuning capability is improved, but the device complexity increases
Solution Approach 1:
The clutch weight is segmented into a modular structure consisting of an elongate body with threaded protrusions and separate adjustable mass adjustment weights. This segmentation allows the weights to be independently positioned and adjusted, providing ease of tuning while keeping each individual component relatively simple in design.
3Adaptability or versatility
If mass adjustment weights are coupled to protrusions, then acceleration and RPM tuning is enabled, but manufacturing complexity increases
Solution Approach 1:
The design enables parameter changes in clutch operation (acceleration and RPM) by allowing the mass distribution to be adjusted. The threaded protrusions provide standardized attachment points that simplify the manufacturing process compared to fully custom designs, as the same basic structure can accommodate different weight configurations through simple assembly variations rather than requiring different manufacturing processes.
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
Enables precise tuning of acceleration and RPM by allowing drivers to adjust clutch weight mass, enhancing the CVT clutch's operational efficiency and adaptability to varying driving conditions.
Implementation Method 1
The moveable sheave utilizes clutch weights to move the moveable sheave toward and away from the stationary sheave in order to engage and disengage the drive belt
Data Source
AI summary
An adjustable mass clutch weight for use in a CVT clutch is provided. The adjustable mass clutch weight may include an elongate body having a heel and a tip; a first protrusion having external threads extending from a first side of the elongate body at the heel. The adjustable mass clutch weight may also include a second protrusion having external threads extending from a second side of the elongate body at the heel. The adjustable mass clutch weight may also include a mounting aperture extending through the first protrusion, the elongate body and the second protrusion; and at least one mass adjustment weight with a threaded aperture extending through the at least one mass adjustment weight. The at least one mass adjustment weight may be coupled to the first threaded protrusion and/or the second threaded protrusion to adjust the mass of the adjustable mass clutch weight at the heel of the elongate body.