Integrated Oil Cooler on Engine Fan Cover

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Solution Overview

Problem

Internal combustion engines experience reduced thermal efficiency and increased wear due to blocked airflow and accidental damage to oil cooler conduits, as traditional oil coolers are mounted on the engine, obstructing airflow and being vulnerable to damage.

Innovation Solution

An integrated oil cooler is positioned on the engine's fan cover, allowing airflow and protected from damage, with support ribs securing it without interfering with the fan's airflow path.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the oil cooler is mounted on the engine surface, then the oil can be cooled effectively, but the air flow to the engine is blocked

Engineering Contradiction:

Improveoil temperatureVSAvoidair flow to engine

Core Design Contradiction:

TemperatureVSProductivity

Solution Approach 1:

The oil cooler is extracted from the engine surface and relocated to the engine cover. This separation allows the oil cooler to be positioned in the air flow path without blocking air flow to the engine, while still achieving effective oil cooling through the same air flow that cools the engine.

Inventive Principle:

Principle #2Taking out (Extraction)

2Temperature

If the oil cooler is mounted on the engine, then the oil cooling function is achieved, but the conduits are vulnerable to accidental damage

Engineering Contradiction:

Improveoil temperatureVSAvoidconduit protection

Core Design Contradiction:

TemperatureVSReliability

Solution Approach 1:

The oil cooler and its conduits are nested within the engine cover structure. The engine cover acts as a protective housing that shields the conduits from accidental damage during operation, while the oil cooler remains functional within this protected space.

Inventive Principle:

Principle #7Nested doll (Nesting)

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 maintains engine efficiency, reduces oil degradation, and prevents conduit damage, ensuring effective cooling and prolonged engine life.

Implementation Method 1

an oil cooler placed within the air flow path of the cooling fan to supply cooled oil to the engine

Methodology Applied

Scientific EffectForced Convection: Forced Convection

Implementation Method 2

an oil cooler connected to the engine to receive heated oil and discharge cooled oil

Methodology Applied

Scientific EffectHeat Exchanger: Heat Exchanger

Data Source

PatentUS10287967B2Integrated oil cooler for internal combustion engine

Publication Date: 2019.05.14 CHAMPION POWER EQUIP

AI summary

An engine assembly including an internal combustion engine, an oil cooler connected to the engine to receive heated oil and discharge cooled oil, and an engine cover mounted to the internal combustion engine and having an opening to receive the oil cooler therein.