Fuel Filter Rotating Assembly for Wear-Resistant Installation
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Solution Overview
Problem
Existing fuel filters in internal combustion engines face issues with wear and breakage of the drive nose during installation due to large size or misalignment, and the filter element is prone to damage from high-temperature engine oil pressure, leading to reduced installation reliability and shortened service life.
Innovation Solution
A filter with a rotating device featuring a clamping structure, eccentric fuel return plug, and a drive portion structure that reduces wear and breakage during installation, allowing the filter element to rotate relative to the device under engine oil flow, preventing damage from high-pressure impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the drive nose drives the whole filter element to rotate during installation, then the filter element can be installed, but the drive nose is easy to wear and break due to large size or locked rotation
Solution Approach 1:
The drive mechanism is segmented into a drive nose and a drive groove, where the drive nose rotates within the drive groove rather than driving the entire filter element. This segmentation allows the drive nose to be smaller and less prone to wear and breakage while still achieving the necessary rotation for installation.
Solution Approach 2:
Instead of the drive nose driving the filter element directly, the invention inverts the mechanism by having the drive nose rotate within a fixed drive groove. The rotation is achieved in reverse - the drive nose follows the groove's path rather than forcing the entire element to rotate around it, reducing mechanical stress and wear.
2Stability of the object's composition
If the filter element is fixed in position after installation, then it maintains proper positioning, but it cannot rotate to avoid damage from high-temperature engine oil pressure
Solution Approach 1:
The filter element is designed with a dynamic capability to rotate around its central axis after installation. The central tube and filter element structure allow for rotational movement while maintaining the installed position, enabling the element to dynamically respond to thermal aging and pressure conditions by rotating to distribute stress.
3Duration of action of stationary object
If the filter element rotates during operation to avoid thermal ageing, then service life is prolonged, but the structure must allow rotation while maintaining sealing
Solution Approach 1:
The rotational function is merged into the existing central tube and filter element structure. The central tube serves both as a structural support and as the axis for rotation, while the filter element itself is designed to rotate around this axis. This merging avoids adding separate rotational mechanisms and maintains sealing through the integrated design of the central tube connection.
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
Improves installation reliability and convenience while extending the service life of the filter by reducing wear and breakage of the drive portion, and protecting the filter element from high-temperature oil impacts.
Implementation Method 1
during operation, the filter element may rotate relative to the rotating device under the flow impact of engine oil
Data Source
AI summary
The present application relates to the field of fuel filter components of internal combustion engines, and discloses a filter with a rotating device, including a filter element and the rotating device installed on the filter element. The filter element is provided with a clamping structure matched with the rotating device. The rotating device is provided with an eccentrically arranged fuel return plug, an internal opening, and a drive portion structure. By arranging the rotating device, the service life of this filter is prolonged. By forming the internal opening and arranging the fuel return plug, the installation efficiency and convenience of this filter are improved.