Integrated Blower Manifold Valve Assembly for Backflow and Pressure Relief

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Solution Overview

Problem

Conventional blowers lack a combination check and relief valve assembly that effectively addresses both high-pressure gas buildup and backflow in a simple and compact manner, which is essential for protecting internal components and ensuring efficient fluid discharge.

Innovation Solution

A novel combination check and relief valve assembly is integrated into a single manifold, featuring a check valve to prevent backflow and a relief valve to vent excess pressure, utilizing compression springs and tension adjustment mechanisms for dynamic pressure regulation, ensuring the pressure range is maintained within predetermined limits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a combination check and relief valve assembly is integrated into a single manifold, then the device complexity is reduced and compactness is improved, but the manufacturing precision requirements increase

Engineering Contradiction:
Improvevalve assembly structureVSAvoidmanifold integration precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The patent combines both the check valve and relief valve into a single integrated manifold assembly. The manifold serves as a common housing that contains both valve mechanisms, allowing them to share the same structural framework and mounting interface. This merging reduces the overall number of separate components and simplifies the system architecture while maintaining the distinct functional characteristics of each valve type.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The manifold is designed as a multi-functional component that simultaneously serves as the housing for both the check valve and relief valve. It provides mounting surfaces, fluid passages, and structural support for both valve mechanisms. This universal design allows a single component to fulfill multiple roles, reducing the total part count while ensuring precise integration of both valve functions within one assembly.

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

2Reliability

If compression springs are used for dynamic pressure regulation, then the reliability of pressure control is improved, but the device complexity increases

Engineering Contradiction:
Improvepressure controlVSAvoidpressure regulation mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The compression springs in both the check valve and relief valve are designed to automatically regulate pressure based on system conditions without external control. The springs self-adjust to maintain predetermined pressure ranges by compressing or expanding in response to pressure changes. This self-service mechanism eliminates the need for external actuators, control systems, or additional regulating components, thereby maintaining reliability while minimizing added complexity.

Inventive Principle:
Principle #25Self-service

3Reliability

If a relief valve is added to prevent high-pressure buildup, then the safety and reliability are improved, but the device complexity increases

Engineering Contradiction:
Improvepressure protectionVSAvoidvalve assembly
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The relief valve is integrated into the existing manifold structure rather than being added as a completely separate component. The manifold provides the housing and mounting framework for the relief valve, allowing it to share structural elements with the check valve. This merging approach enables the addition of pressure protection functionality while minimizing the increase in overall device complexity through common structural utilization.

Inventive Principle:
Principle #5Merging (Combining)

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 effectively regulates pressure in blower systems by preventing backflow and releasing excess pressure, protecting components and ensuring efficient fluid discharge, while being simple, compact, and cost-effective to manufacture.

Implementation Method 1

a check valve that closes under low pressure conditions to prevent backflow

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a relief valve that opens under high pressure conditions to limit the pressure in a system

Methodology Applied
Scientific EffectCompression: Compression

Data Source

PatentUS11662751B1Combination check and relief valve assembly for a blower manifold
Publication Date: 2023.05.30 AIRTECH GRP INC
  • US11662751B1 patent drawing
  • US11662751B1 patent drawing
  • US11662751B1 patent drawing

AI summary

A combination check and relief valve assembly especially designed as a manifold attachment to the exhaust port of a blower and which adapts to the blower's exhaust to maintain pressure within the manifold to a certain range. The combination valve features a manifold having an inner channel which connects to the discharge port of the blower via an inlet port, a check valve assembly having a spring-loaded ball disposed for periodic operative engagement with the inlet port for the prevention of backflow of the fluid discharge and a relief valve assembly mounted in a side channel of the manifold for releasing and venting the fluid discharge through a relief vent port upon an excessive pressure buildup. The relief valve includes a spring-loaded plunger which opens and closes the relief vent port. The combined effect of the two valves helps to maintain the pressure in the manifold to a set adjustable desired range.