Compressor Cooling via Silencer Recess Flow Deflection
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Solution Overview
Problem
Existing compressor and vacuum pump designs face challenges in maintaining component temperatures efficiently, leading to increased manufacturing costs, complexity, and reduced component lifespan due to inefficient cooling and structural weaknesses, while also having a larger footprint and complex layouts.
Innovation Solution
A compressor or vacuum pump design with a casing having a single cooling gas inlet and outlet, featuring a fan that directs cooling gas flow via a recess structure on the silencer's cover towards the driving module, optimizing cooling gas distribution to components based on temperature needs, reducing the footprint, and simplifying the layout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If multiple fans are used to cool different zones of the compressor, then cooling efficiency is improved, but device complexity increases
Solution Approach 1:
The single fan is segmented into multiple functional zones through the silencer structure. The silencer is divided into a first portion facing the fan and a second portion extending away from the fan, creating distinct cooling zones. This allows one fan to effectively cool multiple areas without requiring multiple fan units, thus improving cooling efficiency while maintaining simple device layout.
Solution Approach 2:
The silencer acts as an intermediary structure between the fan and the components requiring cooling. It redirects and distributes the cooling air flow from the fan to different zones, including areas behind the fan, without requiring additional fan units. This mediator approach enables efficient multi-zone cooling with a single fan source.
2Temperature
If multiple inlets and outlets are provided in the casing, then cooling effectiveness is improved, but manufacturing complexity increases
Solution Approach 1:
The silencer structure serves multiple functions simultaneously: it acts as a noise reduction component and as a cooling air distribution system. The first portion of the silencer receives cooling air from the fan, while the second portion redirects this air to cool components behind the fan. This multi-functionality eliminates the need for separate cooling inlets and outlets, simplifying casing manufacturing while maintaining effective cooling.
3Productivity
If cooling air is directed only to visible areas, then fan efficiency is improved, but overall cooling effectiveness decreases
Solution Approach 1:
The cooling air flow is extended into a third spatial dimension by utilizing the space behind the fan. The silencer's second portion redirects cooling air backward to cool components that would otherwise be in the fan's blind spot. This dimensional extension of the cooling flow path maintains fan efficiency while dramatically improving overall cooling effectiveness by covering previously unreachable areas.
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 efficient temperature control of components, reduces manufacturing costs, extends component lifespan, and simplifies assembly and maintenance by directing cooling gas effectively to high-temperature areas, enhancing the overall cooling process and reducing noise.
Implementation Method 1
a fan mounted at the cooling gas inlet, comprising a fan housing and configured to blow said cooling gas into said casing
Implementation Method 2
said silencer comprises a recess structure on its cover, configured to deflect the cooling gas flow from the fan towards the driving module
Data Source
AI summary
A compressor or vacuum pump including: —a casing having a cooling gas inlet and a cooling gas outlet for allowing a cooling gas to flow therethrough; —a fan mounted at the cooling gas inlet, including a fan housing and configured to blow said cooling gas into said casing; —a compression or vacuum chamber including a first housing, a process gas inlet and outlet for allowing a process gas to flow therethrough and at least one rotating element; —a driving module including a second housing and at least one bearing for supporting said at least one rotating element; —a silencer including a cover and configured to attenuate noise generated by the compressor or vacuum pump. The silencer includes a recess structure on its cover, configured to deflect the cooling gas flow from the fan towards the driving module.