Axial Blower Stator Segments for Robust Manufacturing
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Solution Overview
Problem
Existing axial blowers face challenges in achieving high pressure increase and air throughput while maintaining low production costs, as the central construction must absorb large forces and be robust, complicating the manufacturing process.
Innovation Solution
The central construction is composed of separate stator segments secured to each other, with guide blades configured as integral units, allowing for cost-effective manufacturing through molding and assembly using circular cover plates and pins for secure mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the central construction is made robust to absorb large forces, then reliability is improved, but manufacturing complexity and production costs increase
Solution Approach 1:
The central construction is divided into multiple separate stator segments that are assembled together to form the complete stator. Each segment can be manufactured independently using standard molding processes, avoiding the need for complex tooling for a single large robust structure. The segments are then joined using simple cover plates and pins, maintaining structural integrity while simplifying manufacturing.
2Productivity
If guide blades are integrated with stator segments, then manufacturing efficiency is improved, but structural complexity increases
Solution Approach 1:
The guide blade and stator segment are combined into a single integral unit manufactured as one piece through molding. This integration eliminates the need for separate manufacturing and assembly steps for these components, improving manufacturing efficiency. The integral design ensures precise alignment and connection between the guide blade and stator segment without requiring additional fastening elements.
3Strength
If the central construction is made robust to handle motor mounting, then strength is improved, but production costs increase
Solution Approach 1:
The central construction is segmented into multiple stator segments that collectively provide the required strength for motor mounting. Each individual segment can be manufactured using cost-effective standard molding processes, and the assembled structure achieves the necessary strength through the combined configuration of segments and their connections to the motor housing.
Data Source
Figure 1
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AI summary
An axial blower is provided that comprises a substantially circular cylindrical blower pipe 3 wherein, in the blower pipe, a blower stator is provided that comprises a central construction 8 arranged in the blower pipe and a number of guide blades 9 being disposed downstream of the blower rotor 2 to the effect that they are, at their proximal ends 11, secured to the central construction and, at their distal ends 10, securely mounted to the inner side of the blower pipe 3, whereby the guide blades and the central construction are secured relative to the blower pipe. The central construction comprises a number of separate stator segments that are mutually secured to each other; and wherein each of the guide blades is configured as an integral unit along with one of the stator segments.