Shower Valve Assembly With Fine Flow Control Under Varying Pressure

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Solution Overview

Problem

Current shower systems lack precise control over fluid flow and temperature, often resulting in inadequate user control over water delivery, especially in terms of fine adjustments and adaptability to varying water pressure.

Innovation Solution

A fluid flow control valve assembly with a first and second flow control member, actuated by an operating member, allowing for adjustable flow rates through linear or rotational movement, integrated with a user input mechanism such as a rotary control member, enabling continuous and gradual control of fluid flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a conventional mixer valve is used to control water flow and temperature, then basic temperature control is achieved, but fine adjustment capability and adaptability to varying water pressure are insufficient

Engineering Contradiction:
Improveflow control precisionVSAvoidadaptability to water pressure
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The valve assembly incorporates two independently adjustable flow control members that can be dynamically positioned to control flow rate. The first flow control member provides coarse adjustment while the second provides fine adjustment, allowing the system to adapt to varying water pressures and user preferences in real-time

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The flow control function is segmented into two separate control members: a first flow control member with a first flow channel for primary flow regulation, and a second flow control member with a second flow channel for secondary fine-tuning. This segmentation allows independent optimization of each control stage, achieving both precision and adaptability

Inventive Principle:
Principle #1Segmentation

2Measurement precision

If a simple valve mechanism is used, then device complexity is low, but user control precision over fluid flow is inadequate

Engineering Contradiction:
Improveflow control precisionVSAvoidvalve mechanism complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The valve mechanism is divided into two functional segments: a first flow control member for primary flow regulation and a second flow control member for fine adjustment. Each member has its own flow channel and control structure, allowing precise control without requiring an overly complex single-unit mechanism

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The second flow control member is positioned within the valve assembly in relation to the first flow control member, creating a nested or layered control structure. The second member can move relative to the first to provide fine adjustment, while both work together within a unified valve body, achieving precision without excessive complexity

Inventive Principle:
Principle #7Nested doll (Nesting)

3Ease of operation

If flow control members are fixed in position, then device simplicity is maintained, but fine adjustment of flow rate cannot be achieved

Engineering Contradiction:
ImproveadjustabilityVSAvoidvalve structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The second flow control member is designed to be movable relative to the first flow control member, enabling dynamic adjustment of the flow rate. This movability allows users to fine-tune the flow by changing the position of the second member, transforming a static valve structure into an adaptable control system

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The valve structure is segmented into movable and stationary components: the first flow control member provides a stable base structure, while the second flow control member can move independently to provide adjustment. This segmentation enables ease of operation through simple relative movement without requiring complete structural redesign

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20240018760A1Valve assembly
Publication Date: 2024.01.18 KOHLER MIRA LTD
  • US20240018760A1 patent drawing
  • US20240018760A1 patent drawing
  • US20240018760A1 patent drawing

AI summary

A fluid flow control valve assembly is provided, and includes a fluid flow control valve which includes a first flow control member having one or more flow channels, and a second flow control member adjacent to the first flow control member. The second flow control member moves relative to the first flow control member. A first valve actuator causes movement of the second flow control member relative to the first flow control member. An operating member connects to the first valve actuator. The operating member moves in a linear direction and the operating member on the first valve actuator moves the second flow control member. Movement of the second flow control member adjusts the position of the second flow control member relative to the one or more flow channels in the first flow control member such that a flow rate through the fluid flow control valve may change.