Eccentric Pipe Assembly for Turboengine Tolerance Compensation
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Solution Overview
Problem
The assembly of turbo machines and aggregates is hindered by manufacturing and installation tolerances, leading to imprecise connections, which are further complicated by the need for flexible elements that are unsuitable for high-pressure applications, resulting in increased on-site work and safety risks.
Innovation Solution
The use of eccentric pipe pieces with adjustable rotation to compensate for tolerances between the turbo machine and aggregate, allowing for pre-assembly and precise connection without compromising tightness or suitability for high-pressure applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If flexible elements such as plastic buffers or corrugated pipe sections are used to compensate for tolerances, then ease of assembly is improved, but suitability for high-pressure applications and reliability deteriorate
Solution Approach 1:
The patent changes the geometric parameters of the pipe section by introducing an eccentric design where the inlet and outlet axes are offset from each other. This allows the rigid pipe to accommodate misalignments through rotational adjustment rather than requiring flexible materials, thus maintaining both ease of assembly and suitability for high-pressure applications.
2Manufacturing precision
If connecting lines are pre-assembled with high precision, then manufacturing precision is improved, but adaptability to installation tolerances deteriorates
Solution Approach 1:
The patent introduces a dynamic adjustment capability to the otherwise rigid pre-assembled connecting line. The eccentric pipe section can be rotated during installation to accommodate varying degrees of misalignment, transforming a static precision component into a dynamically adjustable one that adapts to installation tolerances while maintaining pre-assembly benefits.
3Adaptability or versatility
If on-site processing such as cutting metal pipes is performed, then adaptability to position deviations is improved, but safety risks and manufacturing complexity increase
Solution Approach 1:
The patent performs the tolerance compensation action in advance during the pre-assembly phase by designing the eccentric pipe section with built-in adjustment capability. This eliminates the need for on-site cutting and processing, as the eccentric design allows for positional adjustments to be made simply by rotating the pre-fabricated component into the correct alignment.
Data Source
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AI summary
The invention relates to a method for assembling a turbomachine assembly. At least one turbomachine (1) comprising a turbo stage (1a, 1b) and at least one power unit (2) is installed. Subsequently, the turbo stage (1a, 1b) is directly connected to the power unit (2) via a connecting line (8). According to the invention, an eccentric pipe section (11, 11', 11") is positioned and inserted in the connecting line (8).