Adjustable Fuel Pressure Module Spring Length
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Solution Overview
Problem
Existing fuel pressure regulators with non-adjustable springs fail to provide desirable fuel pressure due to manufacturing variations and degradation over time, leading to inconsistent engine performance across different operating conditions and modifications.
Innovation Solution
An adjustable fuel pressure module that uses a pressure regulating spring with a spring seat assembly and an adjusting assembly to constrain the spring's length, allowing for customizable fuel pressure regulation by adjusting the force applied to the spring seat, ensuring compatibility with existing engine systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a non-adjustable spring is used to regulate fuel pressure, then the device structure is simple, but the fuel pressure cannot be adjusted to desirable levels for different engine conditions
Solution Approach 1:
The patent applies the dynamics principle by making the spring length adjustable through a threaded adjustment mechanism. The adjustment assembly allows the spring constraint position to be changed, transforming the static spring system into a dynamic one that can adapt to different fuel pressure requirements while maintaining a relatively simple overall structure.
Solution Approach 2:
The patent implements parameter changes by allowing the spring length (a key geometric parameter) to be varied through the adjustment mechanism. This enables the fuel pressure regulation parameter to be changed without fundamentally altering the regulator structure, thus achieving adaptability while controlling complexity.
2Reliability
If a non-adjustable spring is used, then the manufacturing cost is low, but the fuel pressure degrades over time due to spring degradation
Solution Approach 1:
The patent applies the self-service principle by enabling the operator to adjust the spring length directly through the threaded adjustment mechanism. This allows the system to self-correct for spring degradation without requiring specialized tools or complex maintenance procedures, thereby maintaining reliability while preserving ease of operation.
Solution Approach 2:
The patent implements preliminary action by providing an adjustment mechanism that allows proactive compensation for spring degradation. Instead of waiting for pressure regulation to fail, the spring length can be adjusted in advance to maintain optimal fuel pressure, extending component life and ensuring consistent performance.
3Adaptability or versatility
If a non-adjustable spring is used, then the device is simple to manufacture, but it cannot accommodate manufacturing variations in engine components
Solution Approach 1:
The patent applies the universality principle by designing a regulator that can serve multiple engine configurations through simple adjustment of the spring length. The same basic regulator assembly can be adapted to different engine manufacturers, models, and modifications by adjusting the spring constraint position, making it a universal solution that doesn't require complex manufacturing variations.
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 precise adjustment of fuel pressure to optimal levels, accommodating various engine conditions and modifications, while compensating for aging components, thereby maintaining consistent engine performance and extending the life of the pressure regulating spring.
Implementation Method 1
a pressure regulating spring acting on a spring seat assembly
Implementation Method 2
regulation of fuel pressure is a critical aspect of engine performance
Data Source
AI summary
Method and apparatus for adjustable fuel pressure module. In accordance with an embodiment of the present invention, an apparatus for regulating fuel pressure comprises a body configured to mate to a fuel filter housing, a spring seat assembly configured to seal an opening in the fuel filter housing according to a force applied by a pressure regulating spring acting on the spring seat assembly, and a pressure regulating spring adjusting assembly mounted to the body, configured to constrain an adjustable length of the pressure regulating spring, wherein the spring is constrained between the spring seat assembly and the pressure regulating spring adjusting assembly. A force exerted upon the spring seat assembly by the pressure regulating spring corresponds to a desirable fuel pressure. The spring seat assembly is configured to unseal the opening in the fuel filter housing responsive to a fuel pressure greater than the desirable fuel pressure.