Modular Coolant Manifold With Integrated Valves for Multi-Circuit Cooling

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Solution Overview

Problem

Existing thermal management systems in vehicles require multiple pumps and valves for each coolant circuit, leading to high component costs and complexity.

Innovation Solution

A modular thermal management system with integrated valves in fluid pumps and a central fluid transfer manifold, allowing for efficient coolant circulation through multiple circuits using a minimal set of components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple pumps and valves are used for each coolant circuit, then coolant circulation control is achieved, but component costs and system complexity increase

Engineering Contradiction:
Improvecoolant circulation controlVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple valve functions into a single integrated valve assembly that is shared across multiple coolant circuits. This single valve assembly can direct coolant flow to different circuits based on operational requirements, eliminating the need for separate valves in each circuit while maintaining reliable flow control.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated valve assembly serves multiple functions by being able to direct coolant flow to different circuits (engine cooling, transmission cooling, cabin heating) depending on its position. This multi-functional component replaces what would traditionally require multiple separate valves, reducing overall system complexity while maintaining control capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple pumps and valves are used for each coolant circuit, then coolant circulation control is achieved, but component costs increase

Engineering Contradiction:
Improvecoolant circulation controlVSAvoidcomponent costs
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent merges multiple valve functions into a single integrated valve assembly, reducing the total number of components that need to be manufactured and assembled. This consolidation directly reduces component costs while maintaining the necessary coolant circulation control across multiple circuits.

Inventive Principle:
Principle #5Merging (Combining)

3Device complexity

If a modular thermal management system is used, then component costs and complexity are reduced, but flexible coolant distribution capability must be maintained

Engineering Contradiction:
Improvesystem complexityVSAvoidcoolant distribution flexibility
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The integrated valve assembly provides adaptability by being able to direct coolant flow to different circuits based on thermal management requirements. The valve can be positioned to serve engine cooling, transmission cooling, cabin heating, or combinations thereof, maintaining flexibility despite the reduced component count.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The valve assembly is dynamically controllable, allowing real-time adjustment of coolant flow distribution based on system requirements. This dynamic capability ensures that the simplified modular system can still adapt to varying thermal management needs across different operating conditions.

Inventive Principle:
Principle #15Dynamics

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

Reduces component costs and simplifies coolant circulation by enabling flexible and efficient coolant distribution across multiple circuits with a modular design.

Implementation Method 1

A fluid pump is connected to a heat generating component and to the first inlet port

Methodology Applied
Scientific EffectPump pressure: Pump

Implementation Method 2

A valve mechanism attached to the fluid transfer manifold is operable to connect the first inlet port to one or more of the fluid ports

Methodology Applied
Scientific EffectValve actuation: Valve

Implementation Method 3

coolant fluid through multiple coolant circuits to heat generating and absorbing components

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 4

transfer coolant fluid through multiple coolant circuits to heat generating and absorbing components

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP4617479A1Modular thermal management system
Publication Date: 2025.09.17 COOPER STANDARD AUTOMOTIVE INC
  • EP4617479A1 patent drawingFigure 1
  • EP4617479A1 patent drawingFigure 2
  • EP4617479A1 patent drawingFigure 3

AI summary

A system for circulating coolant comprises a fluid transfer manifold having at least a first inlet port and one or more fluid ports. The fluid ports are connected to one or more coolant circuits. A fluid pump connected to a heat generating component and to the first inlet port circulates the coolant in the coolant circuits. A valve mechanism attached to the fluid transfer mechanism is operable to fluidically connect the first inlet port to one or more of the fluid ports and circulate coolant in the coolant circuits.