Reservoir Level Indicator Vertical Extension

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Solution Overview

Problem

The redesign of modern engine compartments has led to fluid reservoirs being positioned lower, making it difficult for operators to easily assess fluid levels, particularly with coolant reservoirs, which can result in low fluid levels and potential engine damage or failure.

Innovation Solution

A fluid reservoir design with a fluid level indicator assembly where the upper portion extends external and above the body, incorporating a float assembly with a buoyant member that displaces proportionally to coolant levels, allowing for easy inspection even when partially covered by a trim panel, and featuring apertures for headspace venting and lobes to reduce binding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If reservoirs are positioned lower in the engine compartment to improve packaging space utilization, then packaging efficiency is improved, but visual inspection accessibility deteriorates

Engineering Contradiction:
Improvepackaging space utilizationVSAvoidvisual inspection accessibility
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The fluid level indicator is extended vertically above the reservoir body, creating a new dimensional space for visibility. This allows the indicator to be seen from above even when the reservoir is positioned low in the engine compartment, thus resolving the contradiction between compact packaging and inspection accessibility.

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

2Shape

If an engine trim cover is added to enhance aesthetics and manage operational parameters, then appearance quality and noise/temperature management are improved, but access to fluid level indicators deteriorates

Engineering Contradiction:
ImproveaestheticsVSAvoidaccess to fluid level indicators
Core Design Contradiction:
ShapeVSEase of operation

Solution Approach 1:

By extending the indicator assembly vertically above the reservoir, the design creates a visibility path that does not require removal of the trim cover. The indicator protrudes into the space above the reservoir, allowing operators to check fluid levels through openings in the trim cover without dismantling it.

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

3Ease of manufacture

If fluid level indicators are placed on the side of the reservoir for traditional visibility, then manufacturing simplicity is maintained, but visibility when reservoirs are lowered deteriorates

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidfluid level visibility
Core Design Contradiction:
Ease of manufactureVSDifficulty of detecting and measuring

Solution Approach 1:

The indicator assembly is repositioned from a horizontal side-mounted configuration to a vertical extension above the reservoir. This dimensional change maintains manufacturing feasibility while dramatically improving visibility, as the indicator now projects into the upper field of view where it can be seen even when the reservoir is positioned low.

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

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 easy visualization of fluid levels, preventing low fluid situations and potential engine damage by ensuring operators can accurately assess coolant levels without removing trim panels, enhancing operational safety and accessibility.

Implementation Method 1

incorporating a float assembly with a buoyant member that displaces proportionally to coolant levels

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Data Source

PatentUS11305638B2Reservoir with level indicator
Publication Date: 2022.04.19 ABC TECH INC
  • US11305638B2 patent drawing
  • US11305638B2 patent drawing
  • US11305638B2 patent drawing

AI summary

Provided is fluid reservoir comprising a body having an inlet, an outlet, a fill aperture, and a fluid level indicator assembly. The fluid level indicator assembly is configured such at least an upper portion thereof extends external and above the body of the coolant reservoir. The fluid level indicator assembly includes a housing having a lower portion which extends into an interior volume of the body, and an upper portion, which is the portion that extends external and above the body.