Bi-Material Pre-Chamber Mounting for Heat Dissipation and Cost Control

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Solution Overview

Problem

Existing receiving components for pre-chamber components in internal combustion engines face challenges in efficiently dissipating heat while being economically viable, as materials with high thermal conductivity like copper are expensive and those with lower conductivity like steel alloys are not sufficient.

Innovation Solution

A receiving component composed of two different materials, with a high thermal conductivity area made of copper alloy and a lower thermal conductivity area made of steel alloy, joined together to form a single component, addressing thermal dissipation needs while being resource-efficient.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If copper alloy is used for the receiving component to improve thermal conductivity, then heat dissipation capability is improved, but material cost increases significantly

Engineering Contradiction:
Improveheat dissipation capabilityVSAvoidmaterial cost
Core Design Contradiction:
TemperatureVSEase of manufacture

Solution Approach 1:

The receiving component is designed with a composite structure where the first area (in contact with pre-chamber and ignition medium) is made of copper alloy for high thermal conductivity, while the second area (exposed to lower thermal influences) is made of steel alloy. This local differentiation allows optimal thermal management where needed while reducing overall material cost.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The invention uses a composite material structure combining copper alloy and steel alloy in a single receiving component. The copper alloy provides superior thermal conductivity in the critical first area, while the steel alloy provides structural integrity and cost-effectiveness in the second area, achieving both thermal performance and economic viability.

Inventive Principle:
Principle #40Composite materials

2Ease of manufacture

If steel alloy is used for the receiving component to reduce material cost, then material cost decreases, but thermal conductivity and heat dissipation capability deteriorate

Engineering Contradiction:
Improvematerial costVSAvoidheat dissipation capability
Core Design Contradiction:
Ease of manufactureVSTemperature

Solution Approach 1:

The receiving component is designed with a composite structure where the first area (in contact with pre-chamber and ignition medium) is made of copper alloy for high thermal conductivity, while the second area (exposed to lower thermal influences) is made of steel alloy. This local differentiation allows optimal thermal management where needed while reducing overall material cost.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The invention uses a composite material structure combining copper alloy and steel alloy in a single receiving component. The copper alloy provides superior thermal conductivity in the critical first area, while the steel alloy provides structural integrity and cost-effectiveness in the second area, achieving both thermal performance and economic viability.

Inventive Principle:
Principle #40Composite materials

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 solution provides enhanced thermal dissipation capabilities while reducing material costs, offering an economical and ecological alternative to single-material designs.

Implementation Method 1

the second area at least partially includes the pre-chamber receiving component area... increased requirements regarding thermal conductivity can be addressed and this area can be formed by a material that possesses corresponding properties

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP4431710B1Mounting component for a pre-chamber component of a combustion engine
Publication Date: 2026.01.14 GE JENBACHER GMBH & CO OG
  • EP4431710B1 patent drawingFigure 1
  • EP4431710B1 patent drawingFigure 2~4

AI summary

A receiving component for a pre-chamber component (2) of an internal combustion engine (3), comprising: - a pre-chamber component receiving area (4), which pre-chamber component receiving area (4) is configured to receive the pre-chamber component (2) surrounding and/or forming at least a large part of a pre-chamber (5) of the internal combustion engine (3), and - at least one ignition means receiving area (6), which at least one ignition means receiving area (6) is configured to receive an ignition means - preferably a spark plug - and to align it in the direction of the pre-chamber component receiving area (4), wherein the receiving component (1) consists in a first area (7) of a first material and in a second area (8) of a second material that differs from the first material, wherein the second area (8) at least partially includes the pre-chamber component receiving area (4).