Engine Oil Pan Integrated Filtration System

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Solution Overview

Problem

Conventional pressure oil filters in internal combustion engines occupy significant space, incur additional costs due to adapter requirements and drilling, and often operate on a partial flow principle, leading to incomplete filtration and increased risk of contamination.

Innovation Solution

A system integrating a filtration device upstream of the oil pump within the engine oil pan, utilizing a two-stage filtration system with a dense and open filter medium, eliminating the need for additional oil lines and bypass valves, and allowing complete engine oil flow filtration with low flow resistance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If pressure oil filters are attached to the engine housing or cylinder head, then filtration function is provided, but installation space is significantly increased

Engineering Contradiction:

Improvefiltration functionVSAvoidinstallation space

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The patent combines the oil filter housing with the oil pan into a single integrated component. The filter housing is formed as an integral part of the oil pan, eliminating the need for separate mounting brackets, adapters, and additional fastening elements. This merging of components directly reduces the installation space while maintaining the filtration function.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The oil pan is designed to serve multiple functions: it acts as both the oil storage reservoir and the housing for the oil filter. By making the oil pan multi-functional, the patent eliminates the need for a separate filter housing, thereby reducing the overall space required for both oil storage and filtration components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If adapter and additional oil lines are used for filter installation, then filtration is achieved, but manufacturing costs and drilling operations increase

Engineering Contradiction:

Improvefiltration functionVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent integrates the filter housing directly into the oil pan structure, eliminating the need for separate adapters and additional oil lines. The filter element is housed within the oil pan itself, requiring only minimal modifications to the pan structure, thereby reducing manufacturing complexity and cost.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent extracts the filtration function from the traditional separate filter assembly and incorporates it directly into the oil pan. This extraction eliminates the need for additional components such as adapters and extended oil lines, simplifying the overall system and reducing manufacturing costs.

Inventive Principle:

Principle #2Taking out (Extraction)

3Stress or pressure

If pressure oil filters are arranged in bypass flow, then oil pressure is maintained, but complete filtration is not achieved (partial flow principle)

Engineering Contradiction:

Improveoil pressureVSAvoidfiltration completeness

Core Design Contradiction:

Stress or pressureVSReliability

Solution Approach 1:

Instead of arranging the filter in a bypass configuration where only a portion of the oil flow is filtered, the patent inverts the approach by positioning the filter element to handle the main oil flow. The filter element is arranged to filter the majority of the oil passing through the system, achieving more complete filtration while maintaining adequate oil pressure through proper filter design and sizing.

Inventive Principle:

Principle #13The other way round (Inversion)

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 configuration reduces installation space requirements, minimizes contamination risks, ensures complete engine oil filtration, and maintains low flow resistance across varying operating conditions and viscosity, enhancing operational efficiency and reducing costs.

Implementation Method 1

the filter element (3) has a first, inner filter medium (13) and a second, outer filter medium (14), the filter medium of the first filtration layer (13) being denser than the filter medium of the second filtration layer (14)

Methodology Applied

Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP2364762B1System for providing and filtering motor oil to a combustion engine and method for circulating and filtering motor oil in a combustion engine

Publication Date: 2016.03.02 IBS FILTRAN KUNST METALLERZEUGNISSE

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AI summary

The invention relates to a system for engine oil storage and filtration on an internal combustion engine comprising at least one oil storage device as part of an engine oil circuit, at least one filtration device and at least one oil delivery pump, wherein the system is characterized in that the filtration device is located upstream of the engine oil delivery pump with respect to the delivery direction of the oil, wherein only suction oil filtration is provided.