Fuel Temperature Control for Internal Combustion Engines
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Solution Overview
Problem
Current technologies for controlling fuel temperature in internal combustion engines are inefficient in reducing pollutant emissions, particularly CO2, as they rely on complex logic and mandatory fuel pressure sensors, failing to accurately calculate the power required for heating and often result in increased particulate matter and hydrocarbon emissions.
Innovation Solution
A temperature management system for fuel injected into internal combustion engines, comprising a fuel transporting line, a fuel distribution system, a fuel heating device with a heating chamber adjacent to the injector, an electronic control device, and a temperature sensor to measure and control the fuel temperature precisely, ensuring accurate power supply to the heater and maintaining the target temperature for reduced emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If fuel pressure sensors are used to control fuel temperature, then fuel heating can be adjusted according to pressure, but the system complexity increases and measurement accuracy is insufficient
Solution Approach 1:
The patent extracts the temperature measurement function from the fuel pressure sensing system. Instead of using pressure sensors to infer temperature or using complex multi-sensor systems, it directly installs temperature sensors in the fuel injection lines to measure fuel temperature independently, simplifying the overall system architecture while improving measurement accuracy.
Solution Approach 2:
The patent introduces temperature sensors as intermediary measurement devices between the fuel heating device and the electronic control unit. These sensors directly measure fuel temperature and provide feedback to the control unit, which then adjusts heating power accordingly, creating a simple yet effective closed-loop control system.
2Temperature
If complex logic is used to control fuel heating, then fuel temperature can be adjusted, but the calculation accuracy of heating power is reduced
Solution Approach 1:
The patent implements a feedback control system where temperature sensors continuously measure fuel temperature and send signals to the electronic control unit. The control unit compares the measured temperature with the target temperature and adjusts the heating device's power output accordingly, ensuring accurate temperature control without complex calculation logic.
Solution Approach 2:
The system uses the actual fuel temperature measurements to automatically determine the required heating power. The electronic control unit calculates heating needs based on real-time temperature data and fuel flow conditions, allowing the system to self-adjust without external intervention or complex predetermined logic.
3Device complexity
If fuel is injected without precise temperature control, then the system is simpler, but pollutant emissions increase
Solution Approach 1:
The patent changes the temperature parameter of the fuel through controlled heating before injection. By maintaining fuel temperature within an optimal range (above dew point but not excessive), the system improves combustion efficiency and reduces pollutant emissions without requiring overly complex temperature control mechanisms.
Solution Approach 2:
The patent replaces complex mechanical temperature control systems with an electronically controlled heating system. The electronic control unit manages the heating device based on simple temperature sensor feedback, substituting mechanical complexity with electronic control that achieves the same emission reduction goal more efficiently.
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 system achieves precise control of fuel temperature, reducing pollutant gases and particulate emissions by ensuring homogeneous air-fuel mixtures and optimizing fuel injection, leading to lower gasoline consumption and decreased CO2 emissions.
Implementation Method 1
a fuel heating device (13) provided with a heating chamber (131), said heating device being placed adjacent to the fuel injecting device
Implementation Method 2
at least one temperature sensor subsequently mechanically associated with the fuel heating device relative to the fuel flow and electrically associated with the electronic control device
Implementation Method 3
Therefore, one of the most effective techniques for correctly burning fuel is to deliver it previously heated to the combustion chamber
Data Source
AI summary
A system and a method of controlling the temperature of fuel injected into combustion engines, which provides a reduced amount of fuel injected into engines propelled with either pure gasoline or ethanol or any bi-fuel mixture by precisely controlling the amount of heat supplied to the fuel.