High Capacity Oil Filter Pleated Medium Design
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Solution Overview
Problem
Conventional oil filters have limited filtration capacity and medium size, which leads to reduced effectiveness in removing contaminants from engine oil, necessitating frequent changes and compromising engine longevity.
Innovation Solution
A high-capacity oil filter design featuring a hollow canister with a larger filtration medium, anti-drainback valve, and leaf-spring for enhanced sealing, along with a filter medium composed of microscopic fibers and resin for increased surface area and flow rates, allowing for improved contaminant entrapment and extended oil change intervals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional oil filters are used, then the device complexity is low, but the filtration capacity is limited and effectiveness is reduced
Solution Approach 1:
The filter medium is folded into a pleated configuration, transforming a two-dimensional flat filter into a three-dimensional structure with significantly increased surface area. This dimensional transformation allows the filter to capture more contaminants without increasing the cylindrical volume of the filter housing, thereby improving filtration effectiveness while maintaining a compact form factor.
Solution Approach 2:
The pleated filter medium is nested within the cylindrical filter housing, with the folded structure allowing the large surface area filter media to be contained within a compact cylindrical space. This nesting arrangement maximizes the use of internal volume and allows the filter to achieve high filtration capacity without proportionally increasing external dimensions.
2Reliability
If a larger filtration medium is used, then the filtration capacity increases, but the volume of the filter increases
Solution Approach 1:
By folding the filter medium into pleats, the invention increases the effective filtration surface area in three-dimensional space without proportionally increasing the cylindrical volume. The pleated structure allows the filter media to be arranged in a compact folded configuration, providing large filtration capacity within a constrained volume.
Solution Approach 2:
The filter medium utilizes thin, flexible pleated material that can be folded and compressed into a compact cylindrical form. This flexible thin-film structure allows the filter media to achieve large surface area while maintaining a compact volume when housed within the cylindrical filter housing.
3Reliability
If the filter medium surface area is increased, then the contaminant entrapment improves, but the flow rate may be restricted
Solution Approach 1:
The pleated filter medium creates localized channels and flow paths between the folds, distributing the oil flow across multiple local regions. This local quality variation in the pleated structure allows the filter to provide extensive surface area for contaminant capture while maintaining adequate flow channels that prevent restriction, as the oil can flow through multiple parallel paths between the pleats.
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 high-capacity oil filter effectively captures 99% of contaminants, extending engine life and potentially improving performance metrics like horsepower and torque by maintaining cleaner oil conditions for longer periods.
Implementation Method 1
a filter medium configured to entrap contaminants flowing with the engine oil
Implementation Method 2
an anti-drainback valve configured to prevent oil from exiting the oil filter
Implementation Method 3
a base gasket configured to establish a fluid-tight seal between the engine and the oil filter
Data Source
AI summary
An apparatus and a method are provided for a high capacity oil filter configured to remove contaminants from engine oil flowing within an internal combustion engine. The oil filter comprises a hollow canister having a length and a diameter suitable for housing a large filtration medium. A base gasket forms a fluid-tight seal between the oil filter and the engine. A base plate circulates oil from the engine through the oil filter. An anti-drainback valve prevents oil from draining out of the filter and passages within the engine when the engine is not operating. A key aspect of the present disclosure is that the relatively large dimensions and the configuration of the filtration media provide a large surface area for entrapping contaminants flowing with the engine oil.