Multi-Channel Coolant Valve Sealing Structure for Compact Flow Control

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

As internal combustion engines become more complex, existing coolant valves struggle with managing multiple coolant flow paths efficiently, leading to increased structural complexity and potential sealing issues due to the need for more intricate designs.

Innovation Solution

A valve design featuring a housing with a rotating valve body and a seal member with a unique groove structure, including side and end groove walls, stop blocks, and a neck, which allows for sealed communication or isolation of coolant channels, utilizing a hard material seal member to prevent leakage and simplify assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a multi-channel valve is used to manage more coolant flow paths, then the temperature regulation capability is improved, but the structural complexity increases

Engineering Contradiction:
Improvetemperature regulation capabilityVSAvoidstructural complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The valve body is designed with multiple cooling channels (first cooling channel, second cooling channel, third cooling channel) that can serve different thermal management needs. The same valve body structure can regulate temperature for different components by controlling flow through different channels, making it a multi-functional device that handles various coolant flow paths without requiring separate valves for each function.

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

Solution Approach 2:

The valve body is segmented into multiple independent cooling channels with separate control mechanisms. Each channel (first cooling channel, second cooling channel, third cooling channel) can be controlled independently through its own valve core and seal member, allowing selective opening and closing of different flow paths. This segmentation enables complex temperature regulation functionality while maintaining a unified valve structure.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the valve structure is made more complex to handle multiple coolant flow paths, then the flow path management capability is improved, but the sealing reliability deteriorates

Engineering Contradiction:
Improveflow path management capabilityVSAvoidsealing reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

Each cooling channel is equipped with its own dedicated seal member (first seal member, second seal member, third seal member) positioned at specific locations where sealing is needed. The seal members are made of specific materials and have specific geometries tailored to their local sealing requirements. This localized sealing approach ensures reliable sealing at each critical interface without compromising the overall system reliability, even as the number of channels increases.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The seal members act as intermediary elements between the valve body and the cooling channels, providing a dedicated sealing interface for each channel. These intermediary seal members isolate the coolant flow paths from each other and from the external environment, ensuring that the increased complexity of multiple channels does not lead to leakage or sealing failures.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If more coolant flow paths are integrated into a single valve, then the system integration is improved, but the manufacturing difficulty increases

Engineering Contradiction:
Improvesystem integrationVSAvoidmanufacturing difficulty
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Multiple cooling channels and their control mechanisms are merged into a single integrated valve body structure. The first cooling channel, second cooling channel, and third cooling channel are all housed within the same valve body, with their respective valve cores and seal members integrated into the unified structure. This merging reduces the number of separate components needed in the system, simplifying installation and system integration while the modular channel design keeps manufacturing manageable.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS11396953B2Valve
Publication Date: 2022.07.26 ILLINOIS TOOL WORKS INC
  • US11396953B2 patent drawing
  • US11396953B2 patent drawing
  • US11396953B2 patent drawing

AI summary

A valve includes a housing, a valve body, a seal member mounting groove, and a seal member which is inserted into the seal member mounting groove from an insertion opening. The seal member is configured to come into contact with the valve body and a housing sealing surface when the valve body closes the housing opening so as to enable the valve body to close a housing opening in a sealed manner. The seal member mounting groove further includes a seal member limiting structure. The seal member limiting structure is disposed on a groove wall. The seal member limiting structure is configured to restrict movement of the seal member toward the valve body relative to the housing.