Door Drive Regulator Valve With Molded Sealing and Flow Control
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Solution Overview
Problem
Existing door drives with regulating valves are complex and costly to produce due to their numerous components and intricate manufacturing processes.
Innovation Solution
The door drive incorporates radial thickenings and tapers in the regulating valve, which are injection molded or turned parts, allowing for easy accessibility and operation, and is made from plastic with glass fibers, simplifying production and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a regulating valve with many components and complex machining steps is used, then the door drive achieves reliable fluid flow regulation, but the manufacturing cost and production complexity increase significantly
Solution Approach 1:
The patent merges multiple components (regulating valve body, sealing sections, and engagement points) into a single integrated injection-molded part. This consolidation eliminates the need for separate machining operations and assembly steps, directly reducing manufacturing complexity while maintaining the valve's regulatory function through the integrated radial taper geometry
Solution Approach 2:
The invention changes the manufacturing parameter from complex multi-step machining to single-step injection molding. This parameter change enables the producing of complex three-dimensional geometries (including radial thickenings and tapers) directly during molding, thereby simplifying the production process while ensuring precise regulatory characteristics
2Manufacturing precision
If a regulating valve with many components and intricate manufacturing processes is used, then the door drive achieves precise sealing and regulation, but the manufacturing cost increases
Solution Approach 1:
The patent changes the manufacturing method parameter from traditional machining to injection molding, which achieves precise sealing surfaces and complex geometries in a single process step. This parameter change reduces both manufacturing cost and maintains high sealing precision through the molded radial thickening features
Solution Approach 2:
The invention applies local quality by creating radial thickenings at specific locations on the regulating valve body where sealing is required. These localized geometric features provide enhanced sealing capability exactly where needed, while the rest of the valve body maintains simpler geometry for cost-effective molding
3Reliability
If the regulating valve is designed with multiple sealing sections and radial features, then the sealing reliability is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent combines multiple sealing sections and radial thickening features into a single injection-molded component. This merging approach maintains the complex multi-section sealing structure for reliable sealing while eliminating the manufacturing complexity that would arise from assembling separate parts or performing multiple machining operations
Data Source
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AI summary
A control valve (1) for a door drive (2) is described and illustrated, wherein the control valve (1) has a rotation axis (3), wherein the control valve (1) has at least two ends (8), wherein the control valve (1) has at least two sealing sections (12), and wherein the control valve (1) has a control section (4), the control section (4) being arranged between the sealing sections (12). According to the invention, a control valve (1) for a door drive (2) that is particularly easy to manufacture is realized in that at least one of the sealing sections (12) is formed by at least one radial thickening (5), and the control section (4) is formed by at least one radial tapering (6) of the control valve (1).