Pool Pump Air Exhaust Mechanism With Buoy-Actuated Venting

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Solution Overview

Problem

Existing pool pumps face issues with air trapped in tubes or near the impeller, disrupting liquid flow and potentially damaging the impeller or pump, and require manual operation of relief valves which can lead to component failure over time.

Innovation Solution

A pool pump system with an automatic air release mechanism using a buoy and seals to isolate and vent air without manual operation, featuring a buoy room cover, buoy, and seals that adjust based on liquid levels to control air and liquid flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a manual relief valve with a screw is used to release air, then air can be vented from the pump, but the screw may become stuck, cross-threaded, or degrade over time requiring replacement

Engineering Contradiction:
Improveease of air release operationVSAvoidreliability of relief valve components
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The buoy automatically responds to air accumulation by rising and opening the valve without human intervention. The system serves itself by using the buoyancy force generated when air enters the chamber to automatically trigger the air release mechanism, eliminating the need for manual operation and associated wear problems

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the manual screw-based mechanical system with a buoyancy-based automatic system. Instead of requiring manual twisting of a screw, the buoy rises in response to air accumulation and mechanically actuates the valve through a different mechanism, substituting the problematic manual operation with an automatic physical response

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Extent of automation

If manual operation of the relief valve is required, then air release can be controlled, but frequent manual intervention increases the risk of component failure and degradation

Engineering Contradiction:
Improveautomation of air releaseVSAvoidcomponent longevity
Core Design Contradiction:
Extent of automationVSReliability

Solution Approach 1:

The system automatically detects and responds to air accumulation through the buoy's natural buoyancy response. When air enters the chamber, the buoy rises and automatically opens the valve without requiring human intervention, making the system self-regulating and eliminating repeated manual operations that lead to component wear

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The buoy is pre-positioned in the chamber ready to respond immediately when air accumulates. The system is prepared in advance with the buoy floating at the appropriate level, so that as soon as air enters and changes the liquid level, the buoy automatically activates the release mechanism without delay or human intervention

Inventive Principle:
Principle #10Preliminary action

3Reliability

If the pump operates without automatic air release, then the structure can be simpler, but air trapped near the impeller can disrupt flow and damage the impeller

Engineering Contradiction:
Improveprotection of impeller from air damageVSAvoidcomplexity of air release mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The pump system is divided into separate functional zones: the liquid flow path through the impeller and the air detection/response chamber with the buoy. This segmentation allows the air release mechanism to operate independently from the main pumping function, protecting the impeller area from air interference while using a relatively simple buoy-based system

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The buoy acts as an intermediary element that detects air accumulation and translates it into mechanical action to open the valve. Instead of directly monitoring air levels or using complex sensors, the buoy serves as a simple mechanical mediator that responds to changes in liquid level caused by air accumulation and triggers the release mechanism

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

The system effectively and automatically releases air, reducing the risk of impeller damage and prolonging the pump's lifespan by eliminating the need for manual intervention and minimizing debris entry.

Implementation Method 1

a buoy within the chamber configured to fall when the liquid portion within the chamber is below a first level

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Data Source

PatentUS12553442B2Automatic exhaust mechanism
Publication Date: 2026.02.17 BELGRAVIA WOOD LTD
  • US12553442B2 patent drawing
  • US12553442B2 patent drawing
  • US12553442B2 patent drawing

AI summary

Embodiments of the presently disclosed subject matter relate to systems and methods for a pool pump. The pool pump may comprise an impeller, an inlet for receiving a liquid, an outlet for supplying the liquid, a chamber above the impeller configured to receive air from the liquid. The pool pump may further comprise a buoy or an exhaust plug configured to release exhaust gas from within the pool pump. A seal configured to seal against a sealing surface of a top cover to seal the chamber.