Integrated Trigger Valve Element for Uniform Spray Dispensing
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Solution Overview
Problem
Existing trigger dispensing devices face challenges in manufacturing and assembly due to complex integration of valve means, particularly in achieving optimal spray patterns and uniform droplet distribution, which complicates industrial processes.
Innovation Solution
A trigger dispensing head with an integrated valve element that combines suction and pre-compression valve means, featuring a flexible valve element with a cantilevered flap and annular membrane, allowing product flow only when pressure exceeds a threshold, facilitating both manufacturing and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If suction valve means and pre-compression valve means are integrated into a single valve element, then manufacturing and assembly processes are facilitated, but the complexity of achieving optimal spray patterns and uniform droplet distribution increases
Solution Approach 1:
The patent integrates suction valve means and pre-compression valve means into a single valve element (18), combining multiple functions into one component. This merging simplifies manufacturing and assembly processes while the design incorporates specific features (flexible valve element with cantilevered flap and annular membrane) to maintain optimal spray pattern control and uniform droplet distribution
2Manufacturing precision
If pre-compression valves are provided to allow product escape only when pressure exceeds a threshold, then optimal spray pattern is achieved, but device complexity increases
Solution Approach 1:
The pre-compression valve function is merged with the suction valve into a single integrated valve element (18). The flexible valve element incorporates both the cantilevered flap for suction control and the annular membrane for pre-compression control, reducing device complexity while maintaining the pressure threshold mechanism for optimal spray patterns
Solution Approach 2:
The single valve element (18) performs multiple functions: it acts as both a suction valve (controlling product intake into the pressure chamber) and a pre-compression valve (controlling product discharge based on pressure threshold). This multi-functionality reduces the number of components while achieving optimal spray pattern control
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 integrated valve solution simplifies manufacturing and assembly while ensuring optimal spray patterns and uniform droplet distribution, enhancing the device's functionality and efficiency.
Implementation Method 1
pre-compression valves, which allow the product to escape from the pressure chamber to the external environment only when the pressure in the pressure chamber exceeds a predefined threshold value
Data Source
AI summary
A trigger dispensing head of a trigger dispensing device is provided. The trigger dispensing head has a cylinder chamber, a piston, a pressure chamber, a sleeve having an end wall, a suction duct terminating in a suction mouth, a dispensing duct, and valve members for regulating flow of a product. The valve members have a valve element made in one piece. The valve element has a tubular portion, a flexible flap, and an annular membrane.