Rotatable Spa Jet Valve for Multi-Pattern Hydrotherapy

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Solution Overview

Problem

Existing spa jets lack the ability to provide multiple adjustable spray modes, limiting the variety and effectiveness of hydrotherapy experiences.

Innovation Solution

A spa jet system with a selectively rotatable jet head that includes a valve and air/water channels, allowing for multiple spray modes by rotating the jet head to align different water and air inlets with the intakes, creating distinct hydrotherapy effects through varying water and air combinations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a spa jet uses a fixed nozzle design, then the structure is simple and easy to manufacture, but it cannot provide multiple spray modes or adjustable hydrotherapy experiences

Engineering Contradiction:
Improvespray mode varietyVSAvoidjet head structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The jet head is made rotatable and adjustable, allowing users to dynamically change spray directions and modes. The valve mechanism enables dynamic switching between different water and air channel configurations, transforming a static nozzle into a dynamic multi-functional device that can adapt to different hydrotherapy needs

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If a spa jet provides multiple spray modes with adjustable water and air combinations, then hydrotherapy effectiveness is enhanced, but the device complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvehydrotherapy customizationVSAvoidjet assembly process
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The jet head is segmented into distinct functional components: separate water channels, separate air channels, and a valve mechanism with multiple positions. This segmentation allows each component to be manufactured independently and assembled systematically, reducing overall manufacturing complexity while enabling multiple spray modes through different channel combinations

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If a spa jet uses multiple water inlets and air channels for different spray modes, then spray pattern variety is improved, but the valve and channel system becomes more complex

Engineering Contradiction:
Improvespray pattern varietyVSAvoidvalve and channel configuration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

A single multi-position valve serves multiple functions by controlling different combinations of water and air channels. This universal valve component replaces what would otherwise require multiple separate control mechanisms, enabling the system to achieve spray pattern variety while minimizing the number of individual parts and overall system complexity

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

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

Enables multiple hydrotherapy experiences by providing adjustable spray modes, enhancing user comfort and customization.

Implementation Method 1

mixing air with water released from the selectively rotatable jet head (15)

Methodology Applied
Scientific EffectAir entrainment: Air Entrainment

Data Source

PatentEP4368165B1Systems and methods for a multi pattern spa jet
Publication Date: 2025.12.31 BULLFROG INT L C
  • EP4368165B1 patent drawingFigure 1
  • EP4368165B1 patent drawingFigure 2~3
  • EP4368165B1 patent drawingFigure 4~5

AI summary

This disclosure relates generally to jets for spas and, more specifically, to jets that can have more than one jet hydrotherapy spray mode. The jet can include a selectively rotatable jet head, the jet head having a first jet spray mode and a second jet spray mode. The jet head includes a valve, the valve having a first water inlet and a second water inlet, the valve further comprising a first air channel and a second air channel. The valve is rotatable from a first jet spray mode position in which a water intake is in fluid communication with the first water inlet and an air intake is in fluid communication with the first air channel, to a second jet spray mode position in which the water intake is in fluid communication with the second water inlet and the air intake is in fluid communication with the second air channel.