Multi-fluid Syringe Pump for Softgel Encapsulation
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Solution Overview
Problem
Existing pumps used in rotary-die processes for softgel encapsulation can only deliver one fluid at a time, limiting their suitability for applications requiring multiple fluids at predetermined volumes.
Innovation Solution
A syringe-type pump with multiple syringe units and a shut-off valve system that allows for the simultaneous delivery of two or more fluids at predetermined volumes to a common location, such as softgel capsules, without the need for premixing, by using separate inlet channels and plungers for each fluid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional single-fluid pump is used, then the pump structure is simple, but it cannot deliver multiple fluids at predetermined volumes
Solution Approach 1:
The pump is divided into multiple independent syringe units, each capable of delivering a different fluid. Each syringe unit includes its own plunger, barrel, and fluid pathway, allowing multiple fluids to be delivered simultaneously through separate channels to a common filling location.
Solution Approach 2:
The pump design allows a single device to perform multiple functions by incorporating multiple syringe units that can deliver different fluids. The common filling location and coordinated plunger actuation enable the system to function as both a multi-fluid delivery system and maintain the simplicity of a single-pump structure.
2Productivity
If multiple fluids are delivered simultaneously, then the encapsulation efficiency is improved, but the coordination of delivery timing becomes complex
Solution Approach 1:
Multiple syringe plungers are combined under a single actuator mechanism that coordinates their motion. The actuator simultaneously advances or retracts multiple plungers in a synchronized manner, ensuring that multiple fluids are delivered at the correct timing without requiring separate control systems for each syringe.
Solution Approach 2:
The pump operates in periodic cycles where the actuator sequentially or simultaneously moves multiple plungers through their strokes in a coordinated fashion. This periodic coordination ensures that fluids are delivered in the correct sequence and timing for efficient encapsulation.
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 the precise and efficient delivery of multiple fluids at predetermined volumes to softgel capsules, enhancing the versatility and efficiency of the encapsulation process, particularly when fluids are not suitable for premixing due to reactivity or viscosity differences.
Implementation Method 1
a plunger movable within a syringe, from an initial position to a final position, for delivering a predetermined volume of a fluid
Data Source
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AI summary
The invention provides a pump for dispensing a plurality of fluids at predetermined volumes to a common location and a method of using the pump to deliver such plurality of fluids. The pump comprises one or more first syringe units, each first syringe unit comprising a first plunger and a first chamber within which the first plunger slides. A first inlet channel is fluidly connected to the first chamber of each first syringe unit and configured to receive the first fluid. The pump also comprises one or more second syringe units, each second syringe unit comprising a second plunger and a second chamber within which the second plunger slides. A second inlet channel is fluidly connected to the second chamber of each second syringe unit and configured to receive the second fluid.