Valve Actuator Light Guide for Position Indication
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Solution Overview
Problem
Existing valve actuation systems struggle to clearly indicate the position or malfunction of valves in poorly lit environments without excessive energy consumption, especially in large systems with multiple valves.
Innovation Solution
A device with a transparent housing featuring a light guide that focuses and bundles the light from LEDs or a multicolored LED on a base board, positioned behind a mechanical position indicator, allowing clear recognition of valve positions and malfunctions without excessive lighting, using minimal energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple LEDs are used to indicate valve positions and malfunctions, then visibility and information feedback are improved, but energy consumption increases
Solution Approach 1:
Multiple LED indicators (position indicators and malfunction indicators) are merged into a single housing unit, allowing them to share common structural support and electrical connections. This consolidation reduces the total energy required compared to separate indicator systems while maintaining comprehensive visibility of valve status.
2Area of stationary object
If LEDs are arranged on the base board, then space utilization is improved, but light visibility is reduced due to distance from transparent area
Solution Approach 1:
A light guide element acts as an intermediary between the LEDs mounted on the base board and the transparent area of the housing. The light guide transmits and directs the light from the LEDs through the housing wall to the exterior, enabling effective illumination despite the distance between the LED mounting location and the visible transparent surface.
3Loss of information
If housing is made transparent for visibility, then position indication is improved, but excessive ambient lighting occurs in large systems
Solution Approach 1:
The housing incorporates a transparent area specifically localized to the region where position indicators are needed, rather than making the entire housing transparent. This selective transparency allows clear visibility of valve positions while limiting unnecessary ambient light transmission that would occur with full transparency, reducing confusion in systems with multiple valves.
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 clear recognition of valve positions and malfunctions even in dark surroundings with reduced energy consumption, avoiding unnecessary ambient lighting and confusion in large systems.
Implementation Method 1
a light guide (9) is present which bundles and focuses the light of the LEDs
Implementation Method 2
The light guide is preferably made of Plexiglas or transparent polycarbonate
Data Source
Figure 1
Figure 2
AI summary
Device (1) for actuating a valve comprising a housing (2) wherein the housing has a transparent area (5) and the housing is preferably formed from an upper (3) and lower part (4), a gear assembly (6), an electric motor (7) and a base board (8) for mounting electrical components, wherein LEDs or a multi-colored LED and a light guide (9) are preferably arranged in the housing on the base board, wherein the position or other function of the valve is indicated by the illumination of the LEDs and the light guide bundles and focuses the light of the LEDs for position or malfunction indication.