Compressor Discharging Pipe Radial Extension Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing compressors face challenges in assembly workability due to the need for precise coaxial alignment of the discharging pipe with the top cover and discharge cover, which can lead to difficulties in inserting the discharging pipe during assembly.
Innovation Solution
A compressor design that includes a discharging pipe with a linear shape passing through an opening in the side wall of the cylindrical housing, where the inner peripheral surface of the opening is separated from the outer peripheral surface of the discharging pipe, allowing for easier assembly by reducing the need for precise alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the discharging pipe is inserted through the top cover and discharge cover with high positional accuracy requirement, then the sealing performance is improved, but the assembly workability deteriorates
Solution Approach 1:
The patent divides the discharging pipe structure into multiple segments: a first discharging pipe portion extending from the compression chamber, a second discharging pipe portion extending radially outward, and a third discharging pipe portion extending axially outward. This segmentation allows each portion to be positioned and connected independently, reducing the need for high overall positional accuracy while maintaining sealing performance at each connection point.
Solution Approach 2:
The discharging pipe transitions from a purely axial arrangement to a three-dimensional configuration with radial and axial portions. The second portion extends in the radial direction from the compression chamber, while the third portion extends axially outward. This dimensional change provides assembly flexibility, allowing workers to connect components in sequence without requiring precise pre-alignment of all components.
2Shape
If the discharging pipe is bent to achieve the required shape, then the spatial arrangement is improved, but residual stress from machining increases
Solution Approach 1:
The discharging pipe is divided into multiple straight portions (first, second, and third portions) connected at defined angles. Instead of bending a single continuous pipe, the segmented design allows each portion to be manufactured as a straight component with minimal residual stress, then assembled at specific angles to achieve the required three-dimensional spatial arrangement.
Data Source
Figure 1
Figure 2
AI summary
a cylindrical housing (11) extending in an axial direction (Da) and in which an opening (19) is formed in a side wall surface of the housing (11); a suction pipe (18) which allows a refrigerant to be suctioned into the housing (11); and a discharging pipe (50) which allows the refrigerant compressed by a scroll compression unit (30) in the housing (11) to be discharged to the outside of the housing (11). The discharging pipe (50) includes a discharging pipe main body (51) having a linear shape passing through the opening (19) so as to be extended in a radial direction (Dr) outward the housing (11) from an inside thereof. An inner peripheral surface of the opening (19) is separated from an opening facing portion (51d) facing the inner peripheral surface in an outer peripheral surface of the discharging pipe main body (51).