Removable Cartridge Valve With Adjustable Stroke for Stable Dispensing
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Solution Overview
Problem
Existing fluid flow control systems face challenges in space constraints, calibration, and replacement, particularly in beverage dispensing systems, where precise flow control and handling of varying fluid properties are required.
Innovation Solution
A cartridge valve system featuring a regulator, solenoid with adjustable stroke, and flow ring that allows for precise flow control, combined with a bayonet fitting for easy installation and maintenance, and a diaphragm for fluid isolation, enabling stable flow control and cleaning of particulate matter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a traditional valve system is used for fluid flow control, then flow control function is provided, but the system occupies significant space and is difficult to calibrate or replace
Solution Approach 1:
The valve system is divided into a stationary body and a removable cartridge assembly. The cartridge contains the solenoid, armature, diaphragm, and flow ring, allowing it to be easily removed and replaced without affecting the stationary body. This segmentation reduces the space required for installation and maintenance while improving ease of replacement.
Solution Approach 2:
The cartridge incorporates an adjustable stop mechanism that allows dynamic adjustment of the armature retraction distance. This enables on-site calibration of flow rate by adjusting the stop position, eliminating the need for complex calibration procedures or professional service intervention.
2Manufacturing precision
If precise flow control is implemented using traditional mechanisms, then flow rate control is achieved, but the system becomes complex and difficult to maintain
Solution Approach 1:
The patent replaces complex mechanical flow control mechanisms with an electromagnetic solenoid system. The solenoid actuates the armature to control the diaphragm position, which in turn controls the flow ring opening. This substitution simplifies the mechanical structure while maintaining precise flow control through electrical actuation.
Solution Approach 2:
The cartridge uses an adjustable stop that changes the physical parameter of armature retraction distance. By adjusting this parameter, the flow rate is precisely controlled without changing the overall system structure or adding complex control mechanisms.
3Area of stationary object
If a compact valve design is used to accommodate space constraints, then space efficiency is improved, but access for service and calibration is limited
Solution Approach 1:
The valve is segmented into a compact stationary body and a removable cartridge. The cartridge can be completely removed from the stationary body, providing full access to all internal components for service, calibration, or replacement without requiring disassembly of the stationary body or specialized tools.
Solution Approach 2:
The cartridge is designed as a universal replaceable unit that combines multiple functions: flow control, solenoid actuation, and calibration adjustment. This multi-functionality in a single removable component maximizes space efficiency while maintaining ease of service through complete cartridge replacement.
4Area of stationary object
If solenoid size is reduced to accommodate space constraints, then space efficiency improves, but flow control capability may be compromised
Solution Approach 1:
The patent uses a diaphragm actuated by pressure differential created by the solenoid. The diaphragm amplifies the small force from the compact solenoid into sufficient force to control the flow ring opening. This pneumatic/hydraulic amplification mechanism allows a small solenoid to reliably control fluid flow without compromising flow control stability.
Solution Approach 2:
The system uses dynamic pressure differential across the diaphragm to amplify the solenoid's output force. The diaphragm responds dynamically to pressure changes, providing reliable flow control with a compact solenoid by leveraging fluid pressure rather than relying solely on direct mechanical force.
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 system provides stable flow control, reduces solenoid size and cost, accommodates space constraints, and facilitates quick maintenance, while effectively handling fluids with varying properties and particulate matter, ensuring consistent dispensing performance.
Implementation Method 1
a solenoid, the solenoid including an armature configured to retract a retraction distance from a closed position to an open position
Implementation Method 2
a diaphragm coupled to a regulator end of the armature, the diaphragm adapted to isolate the armature from fluid flowing from the regulator outlet
Data Source
AI summary
A cartridge valve (22, 94) and system (10) are provided in which the cartridge valve (22, 94) includes a regulator (44, 96) a flow ring (67), and a solenoid (42, 100) which may have an adjustable stroke to facilitate stable flow control. Also, the cartridge valve (22, 94) includes a quick and easy installation and removal fitting (30 and 32).