Vibration Isolation Mount for Compact Compressor Cooling Flow
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Solution Overview
Problem
Conventional compressors require a larger size to cool components due to the need for fluid to exit and re-enter through the casing, which increases overall dimensions and leads to flow losses.
Innovation Solution
The compressor design incorporates a housing and vibration isolation mounts to redirect fluid back into the compressor interior, eliminating the need for a casing and reducing flow losses by establishing a linear path and using an annular outlet to diffuse fluid, thus maintaining a compact size while effectively cooling motor components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If fluid is returned through the interior of the compressor to cool components, then cooling effectiveness is improved, but the overall size of the compressor increases
Solution Approach 1:
The compressor housing serves multiple functions: it provides structural containment and simultaneously acts as a fluid return passage. The fluid exit from the impeller is directed through the housing interior to cool the motor, eliminating the need for separate cooling channels and reducing overall compressor size while maintaining effective cooling of motor components.
2Temperature
If fluid is returned through the interior of the compressor to cool components, then cooling effectiveness is improved, but flow losses increase
Solution Approach 1:
The housing interior is designed with curved surfaces that guide fluid flow smoothly from the impeller exit back to the compressor inlet. These curved passages reduce flow separation and turbulence, minimizing energy losses while ensuring the fluid effectively cools motor components along its return path.
3Volume of moving object
If the compressor is made compact, then size is reduced, but cooling capability may be compromised
Solution Approach 1:
The fluid return path and cooling function are merged into the housing structure itself. The housing simultaneously provides mechanical containment and serves as the cooling circuit, allowing compact compressor design without compromising cooling capability. The fluid cools motor components directly as it flows through the housing interior.
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 design achieves a more compact compressor arrangement with reduced flow losses and improved cooling of motor components, allowing higher electrical power operation without increasing the compressor's size.
Implementation Method 1
the mount creates a restriction between the compressor and the housing that causes fluid exiting the first outlet to re-enter the compressor via the second inlet
Implementation Method 2
the fluid flowing between the second inlet and the second outlet through the interior of the compressor acts to cool one or more components of the motor
Implementation Method 3
the impeller (21) is a centrifugal impeller, fluid enters the compressor (3) via the first inlet (40) in an axial direction, and fluid exits the compressor (2) via the first outlet (41) in a radial direction
Data Source
Figure 1~3
Figure 2
Figure 4~5
AI summary
Compressor Flow Path A product (1) comprising a compressor (3), a housing (2) and a vibration isolation mount (5) located between the compressor (3) and the housing (2). The compressor (3) comprises an impeller (21), a first inlet (40) located upstream of the impeller (21), a first outlet (41) located downstream of the impeller (21), a second inlet (42) located downstream of the first outlet (41), and a second outlet (43) located downstream of the second inlet (42). During operation, fluid enters the compressor (3) via the first inlet (40) and exits the compressor (3) via the first outlet (41). The mount (5) creates a restriction between the compressor (3) and the housing (2) that causes fluid exiting the first outlet (41) to reenter the compressor (3) via the second inlet (42).