Fuel Filter Insert With Axial Water Discharge Channel
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fuel filters do not effectively remove water from diesel fuel, which can cause damage to high-pressure fuel injection systems and diesel engines, despite being able to filter particulate contaminants efficiently.
Innovation Solution
A fuel filter insert with a prefilter element and a main filter element arranged one atop the other, incorporating a water separating unit within the main filter element, which includes a water discharge channel extending through the prefilter element and a coalescing medium to enhance water separation efficiency, integrated into a compact and modular design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a water separating unit is integrated into the fuel filter insert, then water separation capability is improved, but device complexity increases
Solution Approach 1:
The water separating unit is integrated into the main filter element by forming the water discharge channel as a continuous structure that extends through both the main filter element and prefilter element. This merging of functions into a single integrated component adds water separation capability without proportionally increasing overall device complexity.
Solution Approach 2:
The main filter element is designed to serve multiple functions: filtering particulate contaminants and separating water from fuel. The water discharge channel is formed as an integral part of the filter elements themselves, allowing the same structural components to perform both filtration and water separation functions.
2Reliability
If the water discharge channel extends through the prefilter element, then water removal efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The water discharge channel is formed as an integral part of the filter elements during the molding process, rather than being added as a separate component afterward. This preliminary formation of the water discharge pathway simplifies manufacturing by combining multiple features into a single molding operation.
Solution Approach 2:
The water discharge channel is designed with specific geometric parameters that optimize water removal while maintaining manufacturability. The channel extends axially through the filter elements with controlled dimensions and positioning that balance performance requirements with manufacturing capabilities.
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 solution enables efficient separation of particulate contaminants and water from fuel, maintaining a compact configuration and simple handling, while preventing water-related damage to engines, through effective integration of the water separating unit within the existing filter housing, ensuring reliable operation and cost-efficient manufacturing.
Implementation Method 1
a coalescing medium to enhance water separation efficiency
Data Source
AI summary
A fuel filter insert for a fuel filter is provided with a prefilter element and a main filter element which are arranged one atop the other in an axial direction relative to a longitudinal axis of the fuel filter insert. The main filter element has a water separating unit configured to separate water contained in a fuel to be filtered. The water separating unit has a water discharge channel for water separated from the fuel, wherein the water discharge channel is extending in the axial direction at least partially through the prefilter element. A fuel filter with such a fuel filter insert has a filter housing accommodating the fuel filter insert and the water discharge channel of the fuel filter insert is fluidically connected with a water collecting chamber of the filter housing.