Throttle Module Assembly for Backflow Prevention and Low Flow Resistance
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Solution Overview
Problem
Existing armature assemblies face challenges in achieving high authority for fluid regulation while maintaining low resistance coefficients in fully open states, and preventing backflow in flow-conducting systems.
Innovation Solution
The armature assembly incorporates a throttle module with multiple flow chambers and a backflow preventer, designed using additive manufacturing to create complex shapes and structures that allow for precise control of fluid flow direction and pressure difference, featuring a backflow preventer element with a stop to prevent reversal of flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the armature assembly is designed to achieve high authority for fluid regulation, then the pressure difference control capability is improved, but the resistance coefficient in fully open state increases
Solution Approach 1:
The armature assembly is divided into multiple segments including a first armature part with a first throttle module and a second armature part with a second throttle module. Each throttle module can be independently positioned to control flow, allowing the system to achieve high authority through coordinated operation of multiple segments while maintaining low resistance when fully open.
Solution Approach 2:
The throttle modules are designed with movable components that can dynamically adjust their positions to change the flow cross-section. The first and second armature parts can move relative to each other, enabling dynamic control of fluid flow characteristics to achieve both high regulation authority and low resistance coefficient depending on the operating state.
2Reliability
If the throttle module limits the cross section to create pressure difference for regulation, then the authority is improved, but the flow disruption increases
Solution Approach 1:
The first and second throttle modules are positioned at different locations within the channel, creating localized flow control zones. This allows pressure difference to be generated at specific locations without causing extensive flow disruption throughout the entire system, as each throttle module affects only its local region.
Solution Approach 2:
The first armature part acts as an intermediary between the inlet and outlet, with the first throttle module creating a controlled pressure drop. This intermediary structure allows the system to achieve the necessary pressure difference for regulation while maintaining smoother overall flow characteristics compared to a single restrictive element.
3Ease of manufacture
If conventional manufacturing methods are used for the armature assembly, then the manufacturing process is simpler, but the ability to create complex shapes and structures is limited
Solution Approach 1:
The invention utilizes additive manufacturing technology, which fundamentally changes the manufacturing parameter from traditional subtractive or formative methods. This parameter change enables the creation of complex three-dimensional shapes and internal structures (such as the multi-part armature assembly with integrated throttle modules) that would be impossible or extremely difficult to achieve with conventional manufacturing methods.
Data Source
AI summary
An armature assembly includes a casing and a throttle module. The casing has at least two openings and a channel. The throttle module, through which flow is configured to pass in a flow direction, is arranged in the channel. The throttle module has a flow chamber, in which a backflow preventer is arranged. The backflow preventer has an element and a stop for the element counter to the flow direction.