Truck Clutch Conversion Kit Fluid Actuation
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Solution Overview
Problem
Heavy-duty vehicles with manual transmission systems using lever actuated dry clutches are prone to premature wear and failure due to excessive loading and improper operating practices, leading to reliability issues.
Innovation Solution
A conversion kit that replaces the lever actuated dry clutch with a fluid actuated clutch system, allowing for smoother engagement and disengagement of the engine from the transmission using hydraulic or pneumatic pressure, controlled by a proportional control valve and optional controller for optimized operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lever actuated dry clutch is used in heavy-duty vehicles, then the vehicle can operate with a manual transmission system, but the clutch is subject to substantial loading and extreme service conditions leading to premature wear and failure
Solution Approach 1:
The patent replaces the mechanical lever actuated dry clutch system with a fluid actuated clutch system. The fluid clutch uses hydraulic or pneumatic pressure to engage and disengage the clutch, eliminating the mechanical lever linkage and reducing the impact of substantial loading and extreme service conditions on the clutch components.
Solution Approach 2:
The patent implements a fluid actuated clutch system that uses hydraulic or pneumatic pressure to control clutch engagement. The system includes a fluid reservoir, pump, control valve, and actuator that work together to provide smooth and controlled clutch operation, reducing wear and improving reliability under heavy-duty conditions.
2Productivity
If a lever actuated dry clutch is used, then the existing manual transmission system can be maintained, but the clutch requires frequent replacements due to wear and failure
Solution Approach 1:
The patent replaces the mechanical lever actuated dry clutch with a fluid actuated clutch system, which eliminates the wear-prone mechanical linkage components. The fluid actuation system provides smoother engagement and disengagement, reducing shock loading and extending clutch service life, thereby improving operational reliability and reducing frequent replacements.
Solution Approach 2:
The patent changes the actuation mechanism from mechanical lever to fluid pressure control. The system includes a pump, fluid reservoir, and control valve that regulate fluid pressure to control clutch engagement. This parameter change from mechanical force to controlled fluid pressure reduces wear and extends clutch life.
3Strength
If a fluid actuated clutch system is installed, then durability and torque transmission capacity are increased, but the device complexity increases due to additional components
Solution Approach 1:
The patent uses hydraulic or pneumatic pressure to actuate the clutch, enabling higher torque transmission capacity through fluid pressure control. The system includes a fluid reservoir, pump, control valve, and actuator that work together to provide controlled engagement and disengagement, increasing durability and torque capacity despite the added components.
Solution Approach 2:
The fluid actuated clutch system serves multiple functions: it provides torque transmission, controlled engagement and disengagement, and protection against shock loading. The system can be integrated with the existing manual transmission system, making the additional components multi-functional and justifying the increased device complexity through enhanced performance and 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 fluid actuated clutch system provides increased durability and torque transmission capacity, reducing the need for frequent replacements and improving operational reliability by enabling controlled clutch engagement and disengagement, thus enhancing the overall performance and longevity of the power transmission system.
Implementation Method 1
fluid actuated clutch system, allowing for smoother engagement and disengagement of the engine from the transmission using hydraulic or pneumatic pressure
Implementation Method 2
fluid actuated clutch system, allowing for smoother engagement and disengagement of the engine from the transmission using hydraulic or pneumatic pressure
Implementation Method 3
controlled by a proportional control valve and optional controller for optimized operation
Data Source
AI summary
A clutch conversion kit is usable to convert a truck or other machine from a lever actuated dry clutch to a fluid actuated clutch. The kit (49) includes a hub (50) which engages an input shaft (56) of the transmission (16). A fluid pressure actuated cylinder (68) is mountable on the hub and is operative to selectively axially compress friction discs (122) and separator discs (124) included in a disc pack (120). A flexible drive coupling (170) and drive ring adapter (146) are engageable with a drive ring (138) that is engageable with the friction discs. A pin (204) is positionable to hold the cylinder in a fixed rotational position while a shaft collar (202) and other components of the kit are used to assure proper positioning and operation of the components of the kit.