Centrifugal Gas Separator Rotor Blade Curvature
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Solution Overview
Problem
Existing centrifugal separators for cleaning gas vented from internal combustion engines face issues such as pressure losses, contamination of cleaned gas, and assembly difficulties due to manufacturing and construction flaws, which affect their efficiency and reliability.
Innovation Solution
A gas cleaning separator design featuring a rotor assembly with a housing that includes a guide surface on the blade elements and a flow path with specific geometries to align the mixture of substances effectively, reducing pressure losses and contamination, and improved assembly methods to enhance reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If prior art centrifugal separators are used, then gas cleaning function is provided, but pressure losses occur which adversely affect flow capacity
Solution Approach 1:
The blade elements are designed with curved surfaces and optimized aerodynamic profiles to reduce flow separation and turbulence. The curved geometry of the blades allows for smoother fluid guidance through the separator, minimizing pressure losses while maintaining effective separation performance.
Solution Approach 2:
The invention optimizes key parameters including blade angle, blade spacing, and rotational speed to achieve optimal performance. By carefully selecting and adjusting these parameters, the separator minimizes pressure losses while maximizing flow capacity and separation efficiency.
2Reliability
If prior art separators are used, then separation is achieved, but cleaned gas can become contaminated under certain conditions
Solution Approach 1:
The invention extracts and removes the centrifugal rotor from the housing, allowing independent optimization of each component. This separation enables the rotor to be designed specifically for separation efficiency while the housing can be optimized for clean gas containment, preventing contamination pathways that exist in integrated designs.
Solution Approach 2:
The invention introduces intermediate sealing elements and carefully designed fluid pathways that act as mediators between the separation zone and the clean gas outlet. These intermediaries prevent oil and contaminants from reaching the cleaned gas stream while maintaining effective separation.
3Ease of manufacture
If certain manufacturing techniques and construction features are used, then separator function is achieved, but assembly difficulties and reliability problems occur
Solution Approach 1:
The separator is divided into distinct modular components including the housing, centrifugal rotor, blade elements, and sealing components. This segmentation allows each part to be manufactured independently using appropriate techniques and assembled through standardized interfaces, improving both manufacturability and assembly reliability.
Solution Approach 2:
The blade elements are designed to serve multiple functions: generating centrifugal force for separation, guiding fluid flow, and providing structural support. This multi-functionality reduces the number of separate components needed, simplifying assembly while maintaining reliability.
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
The improved separator design enhances the flow capacity, reduces contamination of cleaned gas, and addresses manufacturing challenges, resulting in a more efficient and reliable gas cleaning process.
Implementation Method 1
a rotor assembly for imparting a rotary motion onto the mixture of substances
Implementation Method 2
a leading edge portion of the at least one blade element comprising a guide surface such that, in use, a mixture of substances flowing towards said leading edge portion is guided by the guide surface towards alignment with the blade element
Data Source
AI summary
The present invention relates to a separator and more specifically, but not exclusively, to a centrifugal separator for the cleaning of a gaseous fluid. A centrifugal separator is provided as comprising a housing defining an inner space, and a rotor assembly for imparting a rotary motion onto a mixture of substances to be separated. The rotor assembly is located in said inner space and is rotatable about an axis relative to the housing. The rotor assembly comprises an inlet for receiving said mixture of substances, an outlet from which said substances are ejected from the rotor assembly during use, and a flow path for providing fluid communication between the inlet and outlet, wherein the outlet is positioned more radially outward from said axis than the inlet.