Removable Fryer Oil Filter Assembly With Internal Oil Return

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Solution Overview

Problem

Existing fryer oil filtration systems are complex and costly to manufacture and maintain, with numerous parts and welds leading to increased labor and repair costs, and a higher likelihood of failure.

Innovation Solution

A simplified oil filtering system with a removable filtering unit featuring stainless steel mesh layers and a conveying unit that eliminates the need for external oil return paths, reducing manufacturing costs and simplifying maintenance, while allowing for easy cleaning and replacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a complex filtration system with multiple components and welds is used, then filtering efficiency is improved, but manufacturing cost and maintenance complexity increase

Engineering Contradiction:
Improvefiltering efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The filtration system is divided into a removable filter assembly that can be separated from the storage unit. This segmentation allows the filter to be easily removed for cleaning or replacement without disassembling the entire system, reducing maintenance complexity while maintaining filtering efficiency through dedicated filter media.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The filter assembly is extracted as a separate removable component from the storage unit. This extraction eliminates the need for complex internal piping and welds within the storage unit, simplifying manufacturing while allowing the filter to perform its function independently with optimized filtering surfaces.

Inventive Principle:
Principle #2Taking out (Extraction)

2Strength

If numerous holes and welds are required in the storage unit, then structural integrity is maintained, but manufacturing labor and repair costs increase

Engineering Contradiction:
Improvestructural integrityVSAvoidmanufacturing cost
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The system is segmented into a storage unit and a separate filter assembly. The filter assembly contains all necessary openings and filtering structures, eliminating the need to bore holes and create welds in the storage unit. This segmentation preserves the storage unit's structural integrity while simplifying its manufacturing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

All complex features including holes, filters, and piping are extracted from the storage unit and consolidated into a separate filter assembly. This extraction allows the storage unit to be manufactured as a simple, robust container with minimal structural modifications, reducing labor costs while maintaining strength.

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If a complex assembly of pan, flow passage member, and piping is used, then oil return path functionality is achieved, but repair frequency and maintenance costs increase

Engineering Contradiction:
Improveoil return functionalityVSAvoidmaintenance simplicity
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The oil return functionality is segmented into a removable filter assembly that contains all necessary components. This assembly can be easily detached and replaced as a single unit, eliminating the need to repair individual pipes or welds within the storage unit, thereby reducing maintenance complexity and repair frequency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The entire oil return and filtration system is extracted as a removable filter assembly. This extraction allows the complex piping and filtering components to be taken out as a single serviceable unit, making maintenance simple - users can remove, clean, or replace the entire assembly without disassembling internal structures or performing complex repairs.

Inventive Principle:
Principle #2Taking out (Extraction)

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 system reduces manufacturing and maintenance costs, enhances user-friendliness, and minimizes clogs due to solidified oil, with improved filtering efficiency and reduced likelihood of failure.

Implementation Method 1

a filtering unit removably arranged on an inner bottom surface of the storage unit within the main storage space and configured to filter the oil in the storage unit via lower and upper filtering layers

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentUS8931403B2Oil filtering device
Publication Date: 2015.01.13 ILLINOIS TOOL WORKS INC
  • US8931403B2 patent drawing
  • US8931403B2 patent drawing
  • US8931403B2 patent drawing

AI summary

An oil filtering system for a storage unit configured to receive and hold oil from a fryer in a main storage space thereof includes a filtering unit and a conveying unit. The filtering unit is removably arranged on an inner bottom surface of the storage unit within the main storage space and configured to filter the oil in the storage unit via lower and upper filtering layers thereof. The conveying unit is removably connected to the filtering unit and has a portion extending upwardly from the filtering unit within the main storage space for conveying the filtered oil from the filtering unit.