Electrically Actuated Valve Poppet Flow Modulation
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Solution Overview
Problem
Electrically actuated valves with poppet technology have limited flexibility in modulating fluid flow between operating positions, typically only allowing maximum and zero values, which is insufficient for applications requiring intermediate flow rates.
Innovation Solution
An electrically actuated valve with a poppet configured for three operating positions: maximum flow, partialized flow, and zero flow, allowing for precise modulation between the first and second working ways using electrical commands and elastic elements to control the poppet's movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If poppet technology is used in electrically actuated valves, then the valve structure is simpler and more reliable, but the flexibility in modulating fluid flow is limited to only maximum and zero values
Solution Approach 1:
The poppet is divided into multiple operating positions (first, second, and third positions) with distinct flow characteristics. The passage area is segmented into different states: maximum area in first position, partialized area in second position, and zero area in third position. This segmentation enables intermediate flow modulation while maintaining poppet technology reliability.
Solution Approach 2:
The poppet is made dynamically movable between three distinct operating positions through electrical actuation. The passage area is transformed from a static state (only open/closed) to a dynamic state with intermediate positions, allowing the flow area to vary between maximum and zero values while maintaining structural simplicity.
2Adaptability or versatility
If slide-valve technology is used, then flexibility in flow modulation is improved, but overall dimensions and performance requirements cannot be met
Solution Approach 1:
Instead of using a large slide valve mechanism, the invention segments the flow control function into a compact poppet structure with three positions. This achieves flow modulation flexibility similar to slide valves while maintaining significantly smaller overall dimensions suitable for the application's performance requirements.
Solution Approach 2:
The invention replaces the complex mechanical slide-valve system with a simpler poppet mechanism actuated by an electrical-actuation device. This substitution maintains flow modulation capability while reducing mechanical complexity and overall valve dimensions.
3Device complexity
If only two operating positions are provided, then the valve structure is simpler, but the ability to provide intermediate flow rates is lost
Solution Approach 1:
The poppet operating range is segmented into three distinct positions: first position for maximum flow, second position for intermediate/partialized flow, and third position for zero flow. This segmentation adds intermediate flow capability while keeping the structural complexity increase minimal compared to the functional benefit.
Solution Approach 2:
The passage area between the valve seat and poppet is given different local qualities at different positions: maximum opening area in first position, partialized area in second position, and closed area in third position. This enables diverse flow rates from a single compact valve structure.
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 flexible modulation of fluid flow rates between maximum and zero values, addressing the limitations of existing poppet valve technologies by providing intermediate flow options, enhancing operational flexibility and efficiency.
Implementation Method 1
the poppet is movable from the first operating position to the second operating position by means of a first electrical command imparted to said electrical-actuation device against the resisting action of a first elastic element; and the poppet is movable from the second operating position to the third operating position by means of a second electrical command imparted to said electrical-actuation device against the resisting action of said first elastic element and of a second elastic element
Data Source
AI summary
An electrically actuated valve includes a first working way and a second working way and a poppet configured for providing a seal on a valve seat set hydraulically between the first working way and the second working way. The poppet includes a first operating position, a second operating position, and a third operating position, and is displaceable by an electrical-actuation deviceIn the first operating position, a passage area for a hydraulic fluid defined between said valve seat and said poppet has a maximum valueIn the second operating position, the passage area is partialized and has a value lower than said maximum valueIn the third operating position, the poppet is in contact with the valve seat, and the passage area has a substantially zero value, so that the first working way is isolated from the second working way.