Dual-Diameter Fuel Inlets With Three-Way Valve for Nozzle Fit

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Solution Overview

Problem

Conventional vehicles are not compatible with both large-diameter and small-diameter fuel supply nozzles, leading to inefficiencies in fueling as fuel stations may only have one type of nozzle, resulting in longer fueling times.

Innovation Solution

The vehicle is designed with two fuel inlets of different diameters, connected via a three-way valve, allowing compatibility with both large-diameter and small-diameter fuel supply nozzles, and an optional attachment for vehicles with a single inlet to accommodate nozzles of varying sizes, including communication devices for secure connection and efficient fueling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a vehicle is equipped with a single fuel inlet, then the device complexity is low, but the adaptability to different fuel supply nozzles is poor

Engineering Contradiction:
Improvecompatibility with fuel supply nozzlesVSAvoidnumber of fuel inlets
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The fuel inlet system is designed to perform multiple functions by incorporating both a first fuel inlet with a large inner diameter and a second fuel inlet with a small inner diameter. This allows the same vehicle fueling system to accommodate both large-diameter and small-diameter fuel supply nozzles, achieving multi-functionality and broad compatibility without requiring different vehicles for different nozzle types.

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

Solution Approach 2:

The fuel inlet system is segmented into two distinct inlets: a first fuel inlet with a large inner diameter for high-flow fuel supply, and a second fuel inlet with a small inner diameter for compatibility with smaller nozzles. This segmentation allows each inlet to be optimized for specific nozzle types while working together to provide universal compatibility.

Inventive Principle:
Principle #1Segmentation

2Productivity

If a large-diameter fuel supply nozzle is used, then the fueling speed is high, but the compatibility with conventional single-inlet vehicles is poor

Engineering Contradiction:
Improvefueling speedVSAvoidcompatibility with vehicle inlets
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The second fuel inlet with a small inner diameter acts as an intermediary component that enables compatibility between large-diameter fuel supply nozzles and conventional single-inlet vehicles. When a large-diameter nozzle is used with a vehicle equipped with only a second (small-diameter) inlet, the system maintains compatibility while still achieving efficient fueling through the first inlet when available.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system utilizes parameter changes by providing two fuel inlets with different inner diameter parameters. The first fuel inlet has a large inner diameter parameter optimized for high-speed fueling with large nozzles, while the second fuel inlet has a small inner diameter parameter optimized for compatibility with smaller nozzles and conventional vehicles. This parameter differentiation resolves the contradiction between fueling speed and compatibility.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If two fuel inlets are provided in the vehicle, then the compatibility with different nozzle sizes is improved, but the device complexity increases

Engineering Contradiction:
Improvecompatibility with fuel supply nozzlesVSAvoidfuel inlet system structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The first fuel inlet and the second fuel inlet are merged into a single integrated fuel inlet system that works together to provide universal compatibility. Both inlets are connected to the fuel tank and can operate independently or in conjunction, combining their different capabilities (large diameter for speed, small diameter for compatibility) into one unified system without requiring separate fueling infrastructure.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12157363B2Vehicle comprising fuel inlet
Publication Date: 2024.12.03 TOYOTA JIDOSHA KK
  • US12157363B2 patent drawing
  • US12157363B2 patent drawing
  • US12157363B2 patent drawing

AI summary

A vehicle may include: a fuel tank; a first fuel inlet connected to the fuel tank and configured to connect to a fuel supply nozzle; and a second fuel inlet connected to the fuel tank and configured to connect to the fuel supply nozzle. An inner diameter of the second fuel inlet may be smaller than an inner diameter of the first fuel inlet.