Fuel Filter with Magnet and Screen for Debris Control
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Solution Overview
Problem
Sudden engine failures in vehicles powered by internal combustion engines can occur due to internal debris generated by failing or failed fuel pumps, which compromises fuel flow and leads to unpredictable fuel delivery to the engine, causing potential choking or flooding, and existing technologies do not effectively filter out these debris before they reach downstream components.
Innovation Solution
A fluid filtering device is installed between the low-pressure and high-pressure sides of the fuel pump to filter internal debris, rerouting the fuel flow through a filtering chamber with a magnet and screen filter, preventing debris from reaching downstream components and providing a diagnostic point for pump failure detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If fuel is continuously pressurized by the fuel pump to maintain fuel rail pressure, then fuel pressure stability is improved, but fuel pump wear and internal debris generation increase
Solution Approach 1:
The patent applies preliminary action by filtering fuel at the low-pressure side of the fuel pump before it enters the pump. This preventive filtering approach removes debris before the pump can generate additional internal debris through continuous operation, thereby maintaining fuel pressure stability while reducing pump wear and debris generation
2Reliability
If fuel is filtered after the fuel pump, then debris is removed from fuel, but downstream components are already compromised by debris
Solution Approach 1:
The patent implements preliminary action by positioning the filter at the low-pressure side inlet of the fuel pump, filtering fuel before it enters the pump and downstream components. This ensures debris is removed in advance, preventing compromise to downstream components like the IMV and fuel injectors before they can be damaged
3Reliability
If a filter is installed in the fuel system, then debris is removed from fuel, but system complexity increases
Solution Approach 1:
The patent merges the filtering function with the existing fuel delivery system by integrating the filter into the low-pressure side fuel line before the pump inlet. This combination approach adds filtering capability while minimizing additional system complexity, as the filter becomes part of the existing fuel delivery pathway rather than a separate standalone system
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 solution inhibits sudden engine failures by slowing the spread of debris, allowing for gradual component failure and providing warning signs of pump failure, ensuring adequate fuel supply and preventing engine choking or flooding.
Implementation Method 1
The fluid filter may include a magnet portion and a screen portion
Implementation Method 2
The fluid filter may include a magnet portion and a screen portion
Data Source
AI summary
A fluid filtering device may have a body that include a fluid collection portion, a filtering chamber, and a passthrough bore. The fluid collection portion may be configured to collect fluid supplied to the fluid filtering device. The filtering chamber may be in fluid communication with the fluid collection portion. The filtering chamber may have an entrance portion, an exit portion, and a fluid filter. The filtering chamber may be configured to filter the fluid supplied to the fluid filtering device. The passthrough bore may be in fluid communication with the filtering chamber and may be separate from the fluid collection portion such that fluid flowing from the fluid collection portion flows into the filtering chamber, and the fluid flowing from the filtering chamber flows into the passthrough bore.