Memory Stop Valve Positioning Mechanism
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Solution Overview
Problem
Existing fluid system valve mechanisms lack a reliable method to consistently return to a precise position, such as the balance point between fully open and fully closed, to maintain desired fluid flow rates and pressure balances, particularly in balancing valve systems.
Innovation Solution
A memory stop system comprising a cover plate, an indicator plate, and a memory bracket with stopper positions, which secures a stopper at a specific position on the memory bracket to maintain the valve's position, allowing for consistent fluid flow and pressure control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a valve mechanism is designed to allow manual operation to various positions, then the ease of operation is improved, but the ability to consistently return to a precise position deteriorates
Solution Approach 1:
The memory stop mechanism allows the operator to set a desired valve position in advance by moving the indicator to a selected position on the scale. This predetermined position is then maintained automatically, enabling the valve to consistently return to the same precise position without requiring manual adjustment each time.
2Ease of operation
If a valve mechanism is designed to allow manual operation to various positions, then the ease of operation is improved, but the reliability of maintaining desired fluid flow rates deteriorates
Solution Approach 1:
The memory stop provides a visual feedback mechanism through the indicator positioned against a scaled background. The indicator clearly shows the current valve position relative to predetermined positions, allowing the operator to verify that the valve has returned to the desired position, thereby ensuring reliable maintenance of desired fluid flow rates.
3Adaptability or versatility
If a valve mechanism is designed to allow manual operation to various positions, then the adaptability is improved, but the consistency of returning to a precise position deteriorates
Solution Approach 1:
The memory stop mechanism divides the continuous valve operation range into discrete, predetermined positions marked on the scaled background. The indicator can be positioned at any point along the scale, providing adaptability for various valve positions, while the physical stop mechanism ensures consistent reproduction of each selected position, thereby maintaining position consistency.
Data Source
AI summary
A memory stop includes: a cover plate; a memory bracket secured to the cover plate, the memory bracket defining a plurality of stopper positions; and a stopper attached to the memory bracket at a one of the plurality of stopper positions. A method of using a memory stop includes: moving a stopper of the memory stop to a memory position, the memory stop including a cover plate, a memory bracket secured to the cover plate and defining a plurality of stopper positions, and the stopper attached to the memory bracket; and securing the stopper to the memory bracket at the memory position, wherein the memory position is at one of the plurality of stopper positions.