Dust Suppression Nozzle with Linear-to-Rotary Motion Conversion

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing dust suppression systems face challenges in efficiently managing power consumption and accurately directing fluid discharge due to fluctuations in fluid pressure, which can lead to increased load on rotation devices.

Innovation Solution

A dust suppression system with a fluid discharger that incorporates a first swivel joint structure, first and second electric linear motion mechanisms, and rotation mechanisms to convert linear motion into rotational motion, minimizing the effect of pressure fluctuations and reducing the need for additional limit switches, thereby optimizing power consumption and cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional rotation devices are used to control the discharge nozzle, then the discharge direction can be adjusted, but the load on the rotation devices fluctuates greatly due to pressure changes in the fluid piping

Engineering Contradiction:
Improvedischarge direction controlVSAvoidload stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces conventional rotation devices with an electric linear motion mechanism that converts linear motion into rotational motion through a rotation mechanism. This substitution eliminates the direct mechanical connection between the fluid pressure system and the rotation control system, thereby stabilizing the load on the rotation mechanism while maintaining discharge direction adjustability.

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

Solution Approach 2:

The patent introduces an intermediary conversion mechanism (electric linear motion mechanism + rotation mechanism) between the fluid pressure system and the discharge nozzle rotation system. This intermediary converts linear motion to rotational motion, decoupling the pressure fluctuations from the rotation load and ensuring stable operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If conventional rotation devices with limit switches are used, then the discharge nozzle rotation range can be limited, but additional limit switches and complex control systems are required

Engineering Contradiction:
Improverotation range controlVSAvoidcontrol system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces mechanical limit switches with an electric linear motion mechanism that inherently controls the rotation range through its linear motion stroke. The rotation mechanism converts this controlled linear motion into precise rotational displacement, eliminating the need for separate limit switches and simplifying the control system.

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

Solution Approach 2:

The electric linear motion mechanism inherently limits the rotation range through its own linear motion capabilities, without requiring external limit switches or complex control systems. The system self-regulates the rotation range based on the linear motion stroke of the electric linear motion mechanism.

Inventive Principle:
Principle #25Self-service

3Reliability

If high output rotation devices are used to cope with pressure fluctuations, then the discharge nozzle can be controlled under varying pressure conditions, but power consumption increases

Engineering Contradiction:
Improvepressure fluctuation toleranceVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent replaces high-output rotation devices with an electric linear motion mechanism that has inherently stable load characteristics. By converting linear motion to rotational motion through a rotation mechanism, the system achieves pressure fluctuation tolerance with lower power consumption, as the electric linear motion mechanism operates under stable load conditions rather than dealing with direct pressure-induced load fluctuations.

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

Solution Approach 2:

The patent introduces an intermediary conversion mechanism that decouples the pressure fluctuations from the power consumption of the rotation control system. The electric linear motion mechanism absorbs the pressure variations through its stable linear motion characteristics, converting them into controlled rotational motion with minimal power consumption variations.

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 achieves accurate fluid discharge to a predetermined work area while further reducing power consumption and costs, effectively suppressing dust generation.

Implementation Method 1

a first rotation mechanism configured to convert linear motion of the first movable part into rotational motion to rotationally displace the first rotating-side body

Methodology Applied
Scientific EffectLinear motion to rotational motion conversion:

Implementation Method 2

a second rotation mechanism configured to convert linear motion of the second movable part into rotational motion to rotationally move the rotation member

Methodology Applied
Scientific EffectLinear motion to rotational motion conversion:

Data Source

PatentUS12420297B2Dust suppression system
Publication Date: 2025.09.23 SUZUKEN IND CO LTD
  • US12420297B2 patent drawing
  • US12420297B2 patent drawing
  • US12420297B2 patent drawing

AI summary

A dust suppression system has one or more fluid dischargers configured to discharge a fluid capable of suppressing generation of dust to a work area of a building by remote operation. The fluid discharger includes a discharge nozzle configured to discharge the fluid; a first swivel joint structure including a first rotating-side body connected to and supporting the discharge nozzle and a first fixed-side body rotatably supporting the first rotating-side body; a first electric linear motion mechanism including a first support part and a first movable part supported by the first support part in a linearly movable manner; and a first rotation mechanism configured to convert linear motion of the first movable part into rotational motion to rotationally displace the first rotating-side body. The dust suppression system can further reduce power consumption as well as can accurately discharge a fluid from a fluid discharger to a predetermined work area.