Pool Pump Automatic Exhaust Mechanism Using a Buoy Valve

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Solution Overview

Problem

Existing pool pumps require manual operation of a relief valve to release air, which can lead to issues such as stuck or cross-threaded screws, degradation over time, and the need for frequent replacements.

Innovation Solution

A pool pump design featuring a buoy room system with a buoy and buoy room valve that automatically releases air without manual operation, using a chamber and seals to manage gas and liquid flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

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

Engineering Contradiction:
Improvemanual operation of relief valveVSAvoidscrew durability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The buoy automatically activates the relief valve mechanism when air accumulates in the pump housing. The buoy rises with accumulated air and mechanically triggers the valve to open, eliminating the need for manual operation and preventing screw degradation from repeated manual turning.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the manual screw-based relief valve system with an automatic buoy-driven mechanical system. The buoy's movement converts air accumulation into automatic valve activation, substituting the need for manual screw operation with an automated mechanical response.

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

2Extent of automation

If manual operation of relief valve is required, then air release can be controlled, but frequent manual intervention reduces convenience and increases maintenance

Engineering Contradiction:
Improveautomatic air releaseVSAvoidmanual intervention frequency
Core Design Contradiction:
Extent of automationVSEase of operation

Solution Approach 1:

The buoy-based system provides self-service air release functionality. When air accumulates in the pump housing, the buoy automatically rises and activates the relief valve without requiring user intervention. The system monitors and responds to air accumulation autonomously, eliminating the need for frequent manual checking and operation.

Inventive Principle:
Principle #25Self-service

3Productivity

If the pump operates with trapped air, then continuous operation is maintained, but air disrupts liquid flow and damages the impeller

Engineering Contradiction:
Improvecontinuous pump operationVSAvoidair disruption and impeller damage
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The buoy serves as a feedback mechanism that detects air accumulation in the pump housing. When air reaches a certain level, the buoy rises and triggers the relief valve to open, automatically releasing the air. This feedback loop prevents air from reaching levels that would disrupt liquid flow or damage the impeller, maintaining continuous productive operation.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The buoy-based relief valve system activates before air accumulation reaches harmful levels. By detecting and responding to air presence early through the buoy's rise, the system preemptively releases air, preventing the conditions that would lead to liquid flow disruption or impeller damage.

Inventive Principle:
Principle #10Preliminary action

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 automatic air release system enhances convenience and longevity by reducing manual intervention and minimizing component failure, while also preventing debris from entering the pump.

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

PatentEP4570345A1Improved automatic exhaust mechanism
Publication Date: 2025.06.18 BELGRAVIA WOOD LTD
  • EP4570345A1 patent drawingFigure 1
  • EP4570345A1 patent drawingFigure 2
  • EP4570345A1 patent drawingFigure 3

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.