Hydrodynamic Converter with Adjustable Impeller Blades
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Solution Overview
Problem
Existing power transmission devices fail to optimally meet the requirements for interaction with working machines, particularly in terms of efficiency, power consumption control, and torque/speed adjustment, due to limitations in controllability and compact design.
Innovation Solution
A power transmission device featuring a hydrodynamic converter with adjustable vanes and a superposition gear, including a planetary gear system, allowing for indirect coupling to a working machine, enabling free controllability of power consumption and efficient operation with a compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If guide vane adjustment or degree of filling adjustment is used in known power transmission devices, then operating conditions can be influenced, but the desired results and required operating range cannot be achieved
Solution Approach 1:
The pump impeller blades are designed to be adjustable during operation, allowing the blade angle to be dynamically changed to optimize performance across different operating conditions. This dynamic adjustment capability enables the hydrodynamic converter to maintain high efficiency while achieving a wide operating range, resolving the contradiction between adaptability and reliability.
2Reliability
If a hydrodynamic constant-flow impeller is used, then efficiency is maintained, but device complexity and size increase
Solution Approach 1:
The pump impeller is segmented into multiple independent blade elements that can be adjusted individually or in groups. This segmentation allows for optimized blade configurations without requiring a completely complex device design, as each segment can be independently controlled to achieve the desired performance while maintaining a compact overall structure.
3Ease of operation
If blade adjustment mechanisms are added to achieve free controllability, then power consumption control improves, but device complexity increases
Solution Approach 1:
The blade adjustment mechanism is merged with the existing hydrodynamic converter structure, integrating the control function into the impeller design itself. This merging approach enables free controllability of power consumption without significantly increasing device complexity, as the adjustment mechanism shares space and components with the converter's existing structure.
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 solution provides enhanced controllability and efficiency in power transmission, allowing for optimal adaptation to variable-speed working machines while maintaining a compact and cost-effective design.
Implementation Method 1
a hydrodynamic converter comprising at least one pump impeller (9), turbine impeller (10) and guide wheel (11), each having a blade, forming a working chamber that can be filled with operating medium
Data Source
Figure 1~2
Figure 3~4b
Figure 5a~5b
AI summary
The invention relates to a power transmission device comprising a hydrodynamic converter. The invention is characterised in that the blading (12) of the pump wheel (9) and/or turbine wheels (10) comprise at least one adjusting blade (13) which can be actuated by an adjusting device (15), and/or at least one multi-membered blade having at least one adjustable blade segment (14).