Loose Slider Valve Thermal Management Module

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Solution Overview

Problem

Current thermostat mechanisms in internal combustion engines face challenges in achieving perfect leakage tightness due to solid connections between radiator and bypass port valves, which are not placed on the same axis, leading to inefficiencies in coolant fluid circulation.

Innovation Solution

A thermal management module with a loose slider valve that moves parallel to the thermal actuator's axis, allowing for independent control of coolant fluid circulation between radiator and bypass outputs, utilizing a paraffin-based or electromechanically activated actuator to prevent leakage by ensuring the sliding valve is fully closed and bonded to the thermal element's motion mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a solid connection is used between radiator port valve and bypass port valve, then the structural stability is improved, but leakage tightness deteriorates

Engineering Contradiction:
Improvestructural stabilityVSAvoidleakage tightness
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The valve system is divided into separate components: a radiator port valve and a bypass port valve that operate independently rather than being solidly connected. This segmentation allows each valve to be optimally positioned and sealed against its respective port, eliminating the leakage issue caused by the rigid L-shaped curtain valve while maintaining structural stability through independent mounting arrangements.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If radiator port and bypass port are placed on the same axis, then the device complexity is reduced, but adaptability to non-coaxial configurations deteriorates

Engineering Contradiction:
Improvedevice complexityVSAvoidadaptability to non-coaxial configurations
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent transitions from a coaxial one-dimensional arrangement to a multi-dimensional configuration where the radiator port and bypass port are positioned at different locations and orientations relative to the thermal actuator. The valve mechanisms are designed to move in multiple directions (up/down and rotational movements) to accommodate non-coaxial port positions, enabling the system to handle various engine layouts and coolant flow paths.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Reliability

If a loose connection is used between sliding valve and thermal actuator, then leakage tightness is improved, but control precision deteriorates

Engineering Contradiction:
Improveleakage tightnessVSAvoidcontrol precision
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

A coupling mechanism serves as an intermediary between the thermal actuator and the sliding valve. This coupling includes elements such as a slot-and-piston arrangement or a four-bar linkage that translates the thermal actuator's linear motion into the appropriate valve movements. The intermediary maintains a loose connection that allows the valve to seal tightly against the port while still being driven by the actuator, thus achieving both leakage tightness and control precision.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 solution ensures precise control over coolant fluid circulation, preventing leakage and maintaining efficient thermal management by allowing the sliding loose valve to control the bypass output without causing coolant leakage, even when fully closed, and effectively regulating temperature by adjusting the radiator and bypass outputs based on temperature changes.

Implementation Method 1

A thermal management module with loose slider valve which... is a component of coolant circulation system of internal combustion engines... utilizing a paraffin-based or electromechanically activated actuator

Methodology Applied
Scientific EffectPhase change: Phase Change

Implementation Method 2

Thermal expandable element which is a component of this thermostat mechanism has a piston. When the piston moves, the valve is driven

Methodology Applied
Scientific EffectThermal expansion: Thermal Expansion

Implementation Method 3

electrically heated paraffin based... actuator

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentEP3426954B1A thermal management module with loose slider valve
Publication Date: 2019.12.11 KIRPART OTOMOTIV PARCALARI SANAYI VE TICARET
  • EP3426954B1 patent drawingFigure 1
  • EP3426954B1 patent drawingFigure 2
  • EP3426954B1 patent drawingFigure 3

AI summary

This invention relates to thermal management module with loose slider valve for cooling circulation systems of internal combustion engines which comprises a sliding loose valve (3) to control the flow of the coolant fluid by opening or closing the output connection whether with the movement generated by an actuator with thermal element (4) which is not connected solid or with the movement which is generated by an electromechanical actuator (9) and transformed to linear movement