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 not easily visible due to its lower height, making the connection with the discharge pipe difficult and prone to errors during assembly.
Innovation Solution
The discharge cylinder of the fixed scroll member is extended to protrude beyond the fixed cover, allowing for visual inspection and easy connection without disassembly, and reinforced with ribs for enhanced strength and cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the discharge cylinder is kept short to maintain compact structure, then the overall device size is reduced, but the connection with discharge pipe becomes difficult and invisible
Solution Approach 1:
The discharge cylinder is extended in the axial direction (length dimension) to protrude beyond the fixed cover, making the connection interface visible and accessible from the outside. This dimensional extension resolves the contradiction by allowing compact radial dimensions while providing adequate axial length for both compactness and maintainability.
Solution Approach 2:
The discharge cylinder is segmented into multiple sections with ribs extending radially outward, creating distinct visual and structural zones. This segmentation allows the cylinder to maintain a compact overall form while providing extended sections that are visible and accessible for connection operations.
2Ease of operation
If the discharge cylinder is extended to improve visibility and accessibility, then connection workability is improved, but the structural complexity increases
Solution Approach 1:
The discharge cylinder is divided into multiple axial sections with ribs extending radially from each section. This segmentation creates a modular structure that improves visibility and accessibility at each section while maintaining overall structural integrity through the rib reinforcement pattern.
Solution Approach 2:
Ribs are added locally at specific axial positions of the discharge cylinder where visibility and accessibility are most needed for connection operations. This localized modification improves workability without requiring complete structural redesign, thus limiting the increase in overall structural complexity.
3Strength
If ribs are added to the discharge cylinder to enhance strength and cooling, then structural strength and cooling efficiency are improved, but manufacturing complexity increases
Solution Approach 1:
Ribs are strategically positioned at specific locations on the discharge cylinder where strength and cooling are most needed. This localized reinforcement approach provides the necessary structural strength and cooling efficiency while minimizing the overall manufacturing complexity compared to uniform thickening or 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
Facilitates easy and reliable connection of the discharge cylinder with the discharge pipe or joint, reduces the risk of connection failures, and enhances cooling efficiency.
Implementation Method 1
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
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 that has an end plate, a wrap, cooling fins, and a discharge cylinder; an orbiting scroll member that has an end plate and a wrap; a driving shaft that causes the orbiting scroll member to orbit relative to the fixed scroll member; and a fixed cover that is attached to a tip side of the cooling fins of the fixed scroll member. The discharge cylinder 2of the fixed scroll member extends from the end plate of the fixed scroll member beyond an inner surface of the fixed cover.