EGR Power Module Circuit for Diesel Engine Efficiency
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Solution Overview
Problem
Exhaust Gas Recirculation (EGR) systems in diesel engines lead to reduced engine efficiency, increased emissions, and shortened engine life due to increased particulate matter, abrasive contaminants, and oil acidity, while also causing fouling and component damage, necessitating a solution that improves engine efficiency without modifying or removing the EGR system.
Innovation Solution
An EGR Power Module that provides a resistance and steady electrical current flow to the EGR system's wire harness, specifically designed for the 2002-2006 Detroit Diesel 12.7 and 14.0 liter engines, maintaining the EGR system between 5% to 15%, with a preferred setting of 7%, using a circuit with resistors and capacitors to optimize engine performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If EGR system is used to reduce NOx emissions, then NOx emissions are reduced, but engine efficiency is reduced and fuel economy deteriorates
Solution Approach 1:
The patent applies parameter changes by using a power module to dynamically adjust the EGR rate parameter. The module changes the electrical parameters (voltage, current) supplied to the EGR control system, which in turn adjusts the EGR valve position and exhaust gas recirculation rate. This allows optimization of the EGR parameter to achieve a balance between NOx reduction and engine efficiency maintenance.
Solution Approach 2:
The power module incorporates feedback mechanisms by monitoring engine operating conditions and adjusting EGR control accordingly. The system uses feedback from engine sensors to dynamically modify the power output to the EGR actuator, creating a closed-loop control system that responds to changing engine loads and conditions to maintain optimal EGR rates.
2Object-generated harmful factors
If EGR system is used to reduce NOx emissions, then NOx emissions are reduced, but particulate matter emissions increase and engine reliability deteriorates
Solution Approach 1:
The power module introduces dynamics to the EGR control system by enabling real-time, adaptive adjustment of EGR rates based on changing engine conditions. Rather than fixed EGR positioning, the system dynamically modifies exhaust gas recirculation according to engine load, speed, and operating parameters, preventing conditions that lead to excessive particulate accumulation and oil degradation.
Solution Approach 2:
The system employs periodic action through pulsing or cycling the EGR actuator based on engine operating cycles. The power module can create periodic adjustments in EGR flow that prevent continuous exposure to harmful conditions, allowing periodic cleaning cycles or optimization intervals that reduce particulate buildup and maintain engine reliability over time.
3Object-generated harmful factors
If EGR system is used to reduce NOx emissions, then NOx emissions are reduced, but engine power and torque are reduced
Solution Approach 1:
The power module applies partial action by providing controlled, partial power assistance to the EGR actuator rather than full power. This allows selective activation of EGR under specific conditions where NOx reduction is prioritized, while leaving EGR deactivated or minimal under conditions where engine power is critical, achieving a partial application of EGR that balances emissions and performance.
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 EGR Power Module enhances engine efficiency and longevity by maintaining optimal EGR levels, reducing turbo hesitations, improving fuel economy by 0.4 to 1.5 miles per gallon, and eliminating surging and missing throttle issues, resulting in smoother engine operation and lower vibration.
Implementation Method 1
The circuit may provide a resistance and/or a steady electrical current flow to the wire harness through the set of wires
Data Source
AI summary
An exhaust gas recirculation (“EGR”) power module configured for a wire harness of an altimetric/barometric pressure sensor of an EGR system for an engine includes a set of wires and a circuit. The set of wires is configured to match the wire harness on the altimetric/barometric pressure sensor for the engine. The circuit provides a resistance to the wire harness through the set of wires.