Scroll Compressor Discharge Cylinder Extension for Easier Pipe Connection
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Solution Overview
Problem
The discharge cylinder of the fixed scroll member in existing scroll-type compressors is lower in height than the surrounding cooling fins, making it difficult to visually inspect and connect with the discharge pipe, necessitating improved maintainability.
Innovation Solution
The discharge cylinder of the fixed scroll member is extended to protrude beyond the inner surface of the fixed cover, allowing for visual inspection and easy connection without disassembly, and optionally enhanced with ribs for structural support and improved cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the discharge cylinder is kept lower than the cooling fins to maintain compact structure, then the overall height is reduced, but the connection workability between discharge cylinder and discharge pipe deteriorates
Solution Approach 1:
The discharge cylinder is extended in the vertical dimension to protrude beyond the fixed cover, making the connection interface accessible for visual inspection and operation without requiring disassembly of the fixed cover
2Ease of operation
If the discharge cylinder is extended beyond the fixed cover to improve connection accessibility, then connection workability is improved, but the device complexity increases
Solution Approach 1:
The discharge cylinder is integrally molded with the end plate of the fixed scroll member, forming a unified structure that eliminates separate components and assembly steps while achieving the extended configuration
3Ease of operation
If the discharge cylinder is extended beyond the fixed cover, then connection accessibility is improved, but the manufacturing complexity increases
Solution Approach 1:
The discharge cylinder and end plate are formed as a single integral component through molding, eliminating the need for separate manufacturing and assembly processes while achieving the extended configuration for improved accessibility
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
Facilitates easy and reliable connection of the discharge cylinder with the discharge pipe, prevents connection failures, and enhances cooling efficiency by extending the discharge cylinder beyond the cover, improving maintainability and thermal management.
Implementation Method 1
A plurality of working chambers are generated between the wrap of the fixed scroll member and the wrap of the orbiting scroll member. Along with the orbiting of the orbiting scroll member, each working chamber moves and reduces in volume. Thus, gas is compressed.
Implementation Method 2
A fixed cover is attached to the tip side of the plurality of cooling fins, and cooling air flows through a flow path formed by the plurality of cooling fins and the fixed cover. Thus, the fixed scroll member is cooled.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
To provide a scroll-type fluid machine capable of improving the workability of connection between a discharge cylinder of a fixed scroll member and a discharge pipe or a joint. A scroll-type compressor includes: a fixed scroll member 11 that has an end plate 17, a wrap 18, cooling fins 19, and a discharge cylinder 20; an orbiting scroll member 12 that has an end plate 25 and a wrap 26; a driving shaft 13 that causes the orbiting scroll member 12 to orbit relative to the fixed scroll member 11; and a fixed cover 24 that is attached to a tip side of the cooling fins 19 of the fixed scroll member 11. The discharge cylinder 20 of the fixed scroll member 11 extends from the end plate 17 of the fixed scroll member 11 beyond an inner surface of the fixed cover 24.