Heatable Fluid Line Connector With Centered Seal Compression
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Solution Overview
Problem
The existing heatable fluid lines and connectors face reliability issues with sealing due to the heating rod not being centrally arranged in the outlet channel, leading to uneven compression of the seal, which results in potential leakage.
Innovation Solution
The solution involves centering the heating rod and seal relative to each other by offsetting the center axis of the circumferential wall from the outlet channel's center axis, and optionally using a supporting ring to manage the stress and positioning of the heating rod, ensuring uniform compression of the seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the heating rod exits through the outlet channel at a predetermined angle to the longitudinal axis, then the heating rod can be installed in the connector, but the heating rod is not centrally arranged in the outlet channel, leading to uneven seal compression and potential leakage
Solution Approach 1:
The patent applies asymmetry by offsetting the circumferential wall of the accommodation space from the center axis of the outlet channel. This creates an asymmetric sealing structure that compensates for the angular exit of the heating rod, ensuring uniform seal compression despite the non-central positioning of the heating rod in the outlet channel.
Solution Approach 2:
The patent implements local quality by providing different structural characteristics in different regions of the connector. The circumferential wall is positioned specifically offset from the outlet channel center to create appropriate compression conditions at the seal location, while the outlet channel maintains its angular configuration for heating rod passage.
2Ease of manufacture
If the outlet channel has a cross section larger than the heating rod cross section to allow installation, then the heating rod can pass through, but the heating rod cannot be centrally arranged, causing uneven pressure distribution on the seal
Solution Approach 1:
The patent uses asymmetry to offset the circumferential wall from the outlet channel center axis. This asymmetric positioning compensates for the size difference between the outlet channel and heating rod, ensuring that the seal receives uniform compression pressure despite the heating rod not being centrally positioned in the larger outlet channel cross-section.
3Object-generated harmful factors
If a seal is used to prevent leakage at the outlet channel, then fluid tightness can be achieved, but the seal is subjected to uneven compression due to non-central heating rod positioning, compromising reliability
Solution Approach 1:
The patent applies asymmetry by positioning the circumferential wall offset from the outlet channel center axis. This asymmetric arrangement ensures that the seal experiences uniform compression pressure distribution, preventing both overcompression and undercompression, thereby maintaining reliable sealing function consistent across all circumferential sections of the seal.
Solution Approach 2:
The patent implements local quality by specifically positioning the circumferential wall to create appropriate compression conditions at the seal location. This localized structural adjustment ensures that the seal receives uniform pressure distribution, preventing leakage while maintaining functional consistency across the entire seal circumference.
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
This approach ensures reliable sealing by maintaining uniform compression across the seal's circumference, preventing overcompression and undercompression, thus eliminating the risk of leakage.
Implementation Method 1
a heating rod that is arranged in the interior of the tube and projects laterally out of the connector
Data Source
AI summary
A heatable fluid line having a tube and a connector at an end of the tube, the fluid line including an inlet channel with a longitudinal axis, and a heating rod arranged in the interior of the tube and projecting laterally out of the connector through an outlet channel at a predetermined angle to the longitudinal axis. A seal is arranged between the heating rod and the connector in an accommodation space that includes a circumferential wall. An arrangement is provided that centers the heating rod and a seal in relation to one another to seal the heating rod. as it is guided laterally outwards.