Vacuum Pump Integrated Oil Mist Filter
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Solution Overview
Problem
Conventional rotary vane pumps suffer from oil droplets being entrained in the gas flow, requiring separate oil mist separators that are not only costly but also increase the complexity and space requirements.
Innovation Solution
Integrating a filter element directly into the pump housing to separate oil droplets from the gas flow, ensuring efficient oil mist separation without the need for external units, with a design that allows for easy maintenance and filter replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a separate oil mist separator unit is used, then oil droplets are separated from the gas flow, but the device complexity and space requirements increase
Solution Approach 1:
The patent integrates the oil mist separator directly into the pump housing, combining two previously separate functions (pumping and oil separation) into a single unit. This eliminates the need for external oil mist separator units while maintaining effective oil droplet separation from the gas flow.
Solution Approach 2:
The pump housing is designed to serve multiple functions: it contains the pumping mechanism and simultaneously houses the oil mist separator with filter element. This multi-functional design reduces the overall number of components needed in the system.
2Object-affected harmful factors
If a separate oil mist separator unit is used, then oil droplets are separated from the gas flow, but the space requirements increase
Solution Approach 1:
The oil mist separator is merged with the pump housing, utilizing the existing space within the housing structure. This integration eliminates the need for additional external space that would be required for separate oil mist separator units.
Solution Approach 2:
The oil mist separator components (housing section and filter element) are nested within the pump housing structure, effectively using the available internal space of the main pump body for dual purposes.
3Device complexity
If a filter element is integrated into the housing, then the design is simplified and costs are reduced, but the filter element must be replaceable for maintenance
Solution Approach 1:
The housing is divided into a base body and a detachable housing section that contains the filter element. This segmentation allows the filter element to be easily accessed and replaced by removing the housing section, while maintaining the simplified integrated design during normal operation.
Solution Approach 2:
The housing section is designed to be dynamically configurable - attached during operation to maintain the integrated simplified design, and detachable during maintenance to enable easy filter replacement. This dynamic design approach satisfies both design simplicity and ease of repair requirements.
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 integrated solution simplifies the design, reduces costs, and enhances maintenance efficiency while ensuring maximum gas throughput with minimal pressure increase, providing a compact and reliable oil mist separation system.
Implementation Method 1
A filter element for filtering the fluid to be discharged is arranged in front of the discharge flange in order to separate the oil droplets contained in the fluid
Data Source
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AI summary
The invention relates to a vacuum pump with an oil-immersed rotary vane pump system and a housing surrounding the pump system. The housing has a discharge flange for discharging a fluid drawn in by the vacuum pump. A filter element for filtering the discharged fluid is located upstream of the discharge flange, the filter element being integrated in a housing section detachably coupled to a base body of the housing.