Fibre Preform Pressure Connection Device

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Solution Overview

Problem

The current fibre drawing process is complicated and time-intensive due to the difficulty in connecting a plurality of elongate holes in a fibre preform to a pressure supply system.

Innovation Solution

A device comprising a first surface connected to the end face of the fibre preform, a second surface with at least two ports configured for fluid connection to a pressure supply system, and a channel system that connects the elongate holes to the ports, allowing for efficient pressure supply.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a plurality of elongate holes are connected individually to a pressure supply system, then each hole can receive pressure, but the connection process becomes complicated and time-intensive

Engineering Contradiction:
Improvepressure supply to elongate holesVSAvoidconnection process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple individual connections to elongate holes into a single integrated connection block. The block contains multiple channels that simultaneously connect to multiple elongate holes, transforming a complex multi-step connection process into a single operation. This merging approach maintains reliable pressure supply to all holes while dramatically reducing connection complexity and time.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The connection block serves multiple functions simultaneously: it acts as a pressure distribution manifold, a structural support element, and a sealing interface. By designing a universal component that performs multiple roles, the patent eliminates the need for separate connection elements for each elongate hole, thereby simplifying the overall system while ensuring reliable pressure delivery.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple ports are arranged densely at the second surface to match the channel density at the first surface, then all elongate holes can be connected, but the ports become difficult to access and connect to the pressure supply system

Engineering Contradiction:
Improveconnection of all elongate holesVSAvoidaccessibility of ports
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent distributes ports across multiple surfaces and dimensions rather than concentrating them all on a single plane. The second surface includes ports arranged on opposite sides and at different locations, utilizing three-dimensional space to provide adequate access to each port. This dimensional distribution allows all elongate holes to be connected while maintaining ease of operation for connecting the pressure supply system.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Productivity

If the connection process is simplified with fewer ports, then the connection time is reduced, but not all elongate holes can be connected to different pressure sources

Engineering Contradiction:
Improveconnection speedVSAvoidpressure control flexibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The connection block is segmented into multiple independent channels, each leading to a specific elongate hole. This segmentation allows each channel to be independently controlled and pressurized, providing flexibility to apply different pressures to different holes. The segmented design achieves this functionality without requiring individual external connections, thereby maintaining fast connection speed while enabling versatile pressure control.

Inventive Principle:
Principle #1Segmentation

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 device simplifies the connection process, reducing time and complexity, while allowing for different pressures to be applied to various elongate holes, enhancing the fibre drawing process efficiency.

Implementation Method 1

a channel system within the device connecting the plurality of elongate holes at the first surface to the at least two ports such that at least one of the plurality of elongate holes is connected to one of the at least two ports and such that at least one other of the plurality of elongate holes is connected to another one of the at least two ports

Methodology Applied
Scientific EffectPressure gradient: Pressure Gradient

Data Source

PatentEP3832363B1A device and method for connecting a fibre preform to a pressure supply system
Publication Date: 2025.01.29 ASML NETHERLANDS BV
  • EP3832363B1 patent drawingFigure 1A~2
  • EP3832363B1 patent drawingFigure 3~4
  • EP3832363B1 patent drawingFigure 5

AI summary

The invention provides a device for connecting a fibre preform (FP) including a plurality of elongate holes to a pressure supply system (PSS), said device comprising: a. a first surface (FS) to be connected to an end face of the fibre preform (FPP) where the plurality of elongate holes end; b. a second surface comprising at least two ports (P1,P2) configured to be in fluid connection with the pressure supply system (PSS); and c. a channel system within the device connecting the plurality of elongate holes at the first surface (FS) to the at least two ports (P1,P2) such that at least one elongate hole is connected to a port and such that at least one other elongate hole is connected to another port, wherein a density of the at least two ports at the second surface is smaller than a corresponding density of the channel system at the first surface (FS).