Modular Solenoid Valve Assembly for Faster Actuation and Lower Weight
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional solenoid valves used for remote opening and closing of pipelines in applications like rocket engines and spacecraft have slow actuation times and inflexible structures, which hinder optimal operation and manufacturability.
Innovation Solution
A solenoid valve assembly with a double movable seal and a cylindrical main poppet valve having specific diameter ratios, along with a modular structure that includes a pilot assembly and main poppet valve assembly, optimizing weight and dimensional characteristics, reducing actuation time, and facilitating manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional solenoid valve structures are used, then manufacturing simplicity is maintained, but actuation time is too slow and weight is excessive
Solution Approach 1:
The solenoid valve is divided into modular components: a pilot assembly with frame and pilot poppet valve, a body with inlet/outlet cavities and channels, and a main poppet valve assembly. This segmentation allows independent optimization of each module for faster actuation while maintaining manufacturability through standardized interfaces and modular construction.
2Weight of moving object
If conventional solenoid valve structures are used, then structural simplicity is maintained, but weight and dimensional characteristics are suboptimal
Solution Approach 1:
The frame structure serves multiple functions: it houses the pilot poppet valve assembly, provides mounting surfaces for sealing elements, defines the annular cavity for fluid control, and supports the solenoid actuator. This multi-functionality reduces the number of separate components needed, thereby reducing overall weight while maintaining manufacturing flexibility through standardized frame designs.
3Volume of moving object
If conventional solenoid valve structures are used, then manufacturing simplicity is maintained, but dimensional characteristics are not optimized
Solution Approach 1:
The pilot poppet valve assembly is nested within the frame structure, and the main poppet valve is positioned within the annular cavity formed by the frame's internal and external walls. This nested arrangement minimizes the overall valve volume by efficiently utilizing internal space, while each nested component can be manufactured separately and assembled, maintaining ease of manufacture.
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
The solenoid valve assembly achieves reduced actuation time and weight, enabling up to 20-25% improved performance and 1.5 to 2 times weight and dimensional reduction compared to conventional valves, with optional drainage modifications.
Implementation Method 1
a solenoid assembly configured to generate a magnetic field to move the main poppet valve
Implementation Method 2
The first movable sealing element may be disposed in the first annular groove to seal the main poppet valve to the external wall of the frame. The second movable sealing element may be disposed in the second annular groove to seal the main poppet valve to the internal wall of the frame.
Data Source
AI summary
A solenoid valve assembly is provided. The solenoid valve assembly includes a pilot assembly, a body, and a main poppet valve assembly. The pilot assembly includes a frame having an external wall and an internal wall forming an annular cavity. The body includes an inlet cavity, a channel, an outlet cavity, and a main poppet valve seat disposed in the channel between the inlet cavity and the outlet cavity. The main poppet valve assembly includes a main poppet valve and two movable sealing elements. The main poppet valve has a cylindrical shape having an internal diameter, an external diameter, and grooves. The main poppet valve is at least partially disposed in the annular cavity and configured to shut the main poppet valve seat. The movable sealing elements are disposed in the grooves to seal the main poppet valve to the external wall and the internal wall of the frame.