Wind Turbine Blade Pitch Hub for Static Exhaust Wind Control

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Solution Overview

Problem

Existing wind turbines are not optimized to capture static wind from building exhausts and cannot adjust blade pitch to prevent overcurrent or undercurrent status, leading to inefficient energy generation.

Innovation Solution

A blade pitch adjustment device that allows for adjustable blade pitch through mechanisms such as toothed connections and ring gears, enabling optimization for static wind conditions and preventing overcurrent or undercurrent status.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If existing wind turbines with fixed blade pitch are used to capture wind from building exhausts, then the turbine structure is simple, but the turbine cannot optimize energy generation for static wind conditions and may enter overcurrent or undercurrent status

Engineering Contradiction:

Improveenergy generation efficiencyVSAvoidblade pitch adjustment mechanism

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by transforming the fixed blade pitch into an adjustable one. The hub assembly includes a pitch adjustment mechanism with gears, pinions, and threaded rods that allow the blade pitch to be dynamically changed to match static wind conditions from building exhausts, preventing overcurrent or undercurrent status and optimizing energy generation.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent applies parameter changes by modifying the blade pitch angle parameter to suit the specific static wind conditions generated by building exhausts. The adjustment mechanism allows changing the pitch parameter from a fixed value to an optimized value that maximizes energy capture while preventing electrical overload or underutilization.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If blade pitch is adjusted to optimize energy generation, then energy capture is maximized, but the device complexity increases due to additional adjustment mechanisms

Engineering Contradiction:

Improveenergy generationVSAvoidpitch adjustment device

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent merges the pitch adjustment function with the existing hub assembly structure. The adjustment mechanism integrates gears, pinions, and threaded rods that work together with the blade mounting structure, combining multiple functions (pitch adjustment, blade securing, and structural support) into a unified assembly rather than adding separate independent systems.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20260015991A1Systems, methods, and devices for blade pitch adjustment

Publication Date: 2026.01.15 KW WIND ENERGY LTD

AI summary

Described herein are systems, devices, and methods for a blade pitch adjustment device, comprising: a hub connectible to a wind turbine, the hub engageable with at least one blade device each at a blade connection portion, each blade connection portion permitting adjustment of the pitch of the blade device. Each blade device can be rotatably engaged with the hub where the adjustment of the pitch of each blade device is by simultaneous rotation of each blade device.