Scroll Compressor Axial Guide Carrier Element Design
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Solution Overview
Problem
The existing design of compressors with scroll compressor units faces challenges in optimizing the axial guide for the movable compressor body, leading to inefficiencies in support and lubrication, which affects the overall performance and longevity of the compressor.
Innovation Solution
The axial guide is enhanced with a carrier element supporting the scroll vane of the second compressor body, featuring multiple coupling element sets arranged radially outward, an annular axial support face, and a sliding body for optimal lubrication and reduced wear, allowing for two-dimensional movement and efficient lubricant distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the coupling element sets are arranged radially outward of the axial support face, then the lever arm is increased and forces on coupling elements are reduced, but the space available for the axial support face is limited
Solution Approach 1:
The coupling element sets are arranged radially outward of the axial support face, utilizing the radial dimension to increase the lever arm. This spatial arrangement in a different dimension (radial direction) allows the axial support face to maintain adequate area in the axial direction while coupling elements benefit from increased radial distance from the center axis, reducing forces through greater moment arm.
2Reliability
If a sliding body is introduced between the axial support face and carrier element, then lubrication is improved and wear is reduced, but the device complexity increases
Solution Approach 1:
A sliding body is introduced as an intermediary element between the axial support face and the carrier element. This sliding body serves as a mediator that distributes lubricant more effectively across the contact surfaces and reduces direct metal-to-metal contact, thereby improving lubrication and reducing wear. The sliding body integrates with existing components and enables two-dimensional movement, enhancing reliability without requiring a complete structural redesign.
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
This configuration reduces the forces acting on individual coupling elements, optimizes space for the axial support face, and ensures effective lubrication, resulting in improved support, reduced wear, and enhanced compressor performance with minimal tilting moments.
Implementation Method 1
a sliding body for optimal lubrication and reduced wear, allowing for two-dimensional movement and efficient lubricant distribution
Data Source
AI summary
In order to optimise a compressor, including a compressor housing, a scroll compressor unit that is arranged in the compressor housing and has a first compressor body and a second compressor body that is movable in relation to the first compressor body, an axial guide that supports the movable compressor body to prevent movements in the direction parallel to the centre axis of the stationary compressor body and, in the event of movements, guides it in the direction transverse to the centre axis, parallel to a plane perpendicular to the centre axis, an eccentric drive for the scroll compressor unit, wherein the eccentric drive has an entrainer that is driven by the drive motor, that revolves on a path about the centre axis and that, for its part, cooperates rotatably with an entrainer receptacle in the second compressor body, and a coupling that prevents the second compressor body from rotating freely, it is proposed that the axial guide should have a carrier element, which serves as a base for supporting a compressor body base, which carries the scroll vane, of the second compressor body against an axial support face, that the axial support face should be arranged radially outward of the entrainer, and that the coupling that prevents free rotation should have at least two coupling element sets that, for their part, include at least two coupling elements, and that the coupling element sets should be arranged radially outward of the axial support face.