Fueling Nozzle Drip Collector Structure for Cleaner Sealing
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Solution Overview
Problem
Conventional fueling nozzles face issues with fuel dripping from the discharge pipe soiling the nozzle body, leading to potential leakage and appearance deterioration due to damage to the oil receiving part's sealing performance, and overflow risks.
Innovation Solution
A fueling nozzle design featuring an oil receiving part with a reservoir and gutter to store and guide excess fuel away from the nozzle body, using a simple structure that prevents fuel from entering the nozzle body by directing it towards the fueling device body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an oil receiving part is added to receive fuel oil dripping from the discharge pipe, then the nozzle body is protected from soiling, but the sealing part may be damaged during attachment causing fuel oil leakage
Solution Approach 1:
The patent introduces a guide groove structure that预先 guides the fuel oil away from the sealing part before it can cause damage or leakage. The guide groove is formed in advance on the oil receiving part, creating a predetermined path for fuel oil flow that protects the sealing part from direct contact with overflowing fuel.
2Quantity of substance
If the oil receiving part is designed to store fuel oil, then fuel oil accumulation is prevented on the nozzle body, but there is a risk of overflow flowing to the nozzle body side
Solution Approach 1:
The patent extracts the harmful fuel oil from the potential overflow path by introducing a guide groove that directs the fuel oil away from the nozzle body. The guide groove separates the fuel oil flow path from the nozzle body, taking the harmful substance out of the problematic area and directing it to a safe discharge location.
3Reliability
If a complex sealing structure is used to prevent fuel oil leakage, then sealing performance is improved, but the attachment process becomes more complex and prone to damage
Solution Approach 1:
The patent introduces a guide groove as an intermediary structure that mediates between the fuel oil and the sealing part. Instead of making the sealing structure itself more complex, the guide groove acts as a protective intermediary that directs fuel oil away from the sealing area, simplifying the overall attachment process while maintaining reliable sealing.
Data Source
Figure 1(a)~1(c)
Figure 2(a)~2(b)
Figure 3(a)~3(c)
AI summary
Fueling nozzle 1 including a discharge pipe 2 inserted into a vehicle's fuel tank, a nozzle body 3 to which the discharge pipe 2 is connected and which has a flow path through which fuel oil flows to the discharge pipe 2, wherein the fueling nozzle 1 is hung on a nozzle hook 8 provided on a fuel dispenser casing 10 with a discharge opening 2b of the discharge pipe 2 facing upward, wherein an oil receiving part 6 is provided on an attachment part 2a of the discharge pipe for attaching the discharge pipe 2 to the nozzle body 3 or on the nozzle body 3; a reservoir part 6a is provided between the oil receiving part 6 and the discharge pipe attachment part 2a for receiving fuel oil F spilled from the discharge pipe opening; and a gutter 6b is provided on the oil receiving part 6 for guiding the fuel oil F stored in the reservoir part 6a to drip in a direction other than toward the nozzle body 3.