Electric Motor Valve Closure Telescopic Bracket Alignment

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Solution Overview

Problem

Existing valve closure systems for gas-containing vessels face challenges such as the unavailability of compressed air as a power source, the need for a compact and lightweight design, and difficulties in achieving proper registration between the motor coupling and valve stem during installation, which can be inconvenient and affect the ease of use and durability of the system.

Innovation Solution

A novel valve closure system featuring a compact, lightweight, and durable design with a jogging switch on the electric motor housing to facilitate proper circumferential registration of the motor coupling with the valve stem, along with a telescopic engagement mechanism for easy installation and removal, and a planetary gear drive for torque amplification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If an electric motor is used instead of compressed air to operate the valve closure system, then the system can operate in environments where compressed air is not available, but the device complexity increases due to the need for additional mounting and alignment mechanisms

Engineering Contradiction:
Improveoperational environment flexibilityVSAvoidmounting and alignment mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The electric motor assembly is designed with self-aligning features including a telescopic bracket that automatically positions the motor coupling in proper alignment with the valve stem during installation, eliminating the need for complex manual alignment procedures and reducing overall system complexity despite using electricity instead of compressed air

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

A telescopic bracket serves as an intermediary component between the motor assembly and the valve body, providing automatic alignment and positioning functions that simplify the overall mounting process while enabling operation in environments where compressed air is unavailable

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If a compact and lightweight design is implemented, then the ease of installation and removal is improved, but the torque amplification capability may be reduced

Engineering Contradiction:
Improveinstallation and removal convenienceVSAvoidtorque amplification capability
Core Design Contradiction:
Ease of operationVSForce

Solution Approach 1:

The motor assembly is nested within a compact housing that contains the planetary gear drive, allowing the torque amplification mechanism to be integrated within a small footprint. This nested arrangement maintains high torque capability while keeping the overall device compact and lightweight for easy installation and removal

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The valve closure system is divided into modular segments including a separate motor assembly, bracket, and valve body, allowing each component to be optimized independently. The motor assembly with integrated planetary gears provides compact torque amplification, while the modular design enables easy installation and removal without compromising force capability

Inventive Principle:
Principle #1Segmentation

3Reliability

If proper circumferential registration between motor coupling and valve stem is achieved through manual alignment, then the reliability of operation is improved, but the time and difficulty of installation increases

Engineering Contradiction:
Improveoperational reliabilityVSAvoidinstallation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The telescopic bracket is pre-configured with alignment features that automatically guide the motor coupling into proper circumferential registration with the valve stem during the installation process. This preliminary alignment configuration eliminates the need for time-consuming manual adjustment while ensuring reliable operational alignment

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Manual alignment procedures are replaced with a mechanical self-aligning telescopic bracket mechanism that automatically achieves proper circumferential registration between the motor coupling and valve stem, reducing installation time while maintaining operational reliability

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

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 allows for convenient and secure installation and removal of the valve closure system, ensuring proper alignment and engagement with the valve stem, while providing the necessary torque and durability for reliable operation, even in environments where compressed air is not readily available.

Implementation Method 1

a planetary gear drive for torque amplification

Methodology Applied
Scientific EffectPlanetary gear mechanism: Gear

Data Source

PatentUS7793916B2Electric-motor-operated valve closure system
Publication Date: 2010.09.14 POWELL FABTION & MFG
  • US7793916B2 patent drawing
  • US7793916B2 patent drawing
  • US7793916B2 patent drawing

AI summary

A valve closure system (30) for operating a valve (32) of a fluid-holding cylinder (CYL) between an open and a closed position to allow and disallow communication of the interior of the cylinder through the valve. A coupler (118) engages and rotates a stem (40) of the valve. An electric motor (92) rotates the coupler. A square tube (102) on the motor housing surrounds the coupler. A bracket (50) mounts on the valve body. The parts (50, 102) have respective walls shaped to mutually telescopically engage when, with bracket (50) mounted on the valve, the motor housing has been properly circumferentially and axially aligned with the bracket and then advanced to move the coupler toward engagement with the valve stem. The parts (50, 102) may be pinned together by a hitch pin (54).