Fuel Temperature Control System for Internal Combustion Engines
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Solution Overview
Problem
Existing systems for controlling fuel temperature in internal combustion engines are inefficient in reducing pollutant emissions, as they rely on complex logic and mandatory fuel pressure sensors, failing to accurately calculate the power required for precise fuel preheating and resulting in excessive particulate matter and greenhouse gas emissions.
Innovation Solution
A temperature management system for fuel injected into internal combustion engines, featuring a fuel transporting line, a fuel distribution system with a temperature sensor, a fuel heating device adjacent to the injector, and an electronic control device that measures fuel temperature upstream and flow rate to calculate and apply precise power for preheating, ensuring accurate fuel temperature control and reduced emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex logic and mandatory fuel pressure sensors are used to control fuel temperature, then fuel preheating can be performed, but the system becomes overly complex and fails to accurately calculate the power required for precise fuel preheating
Solution Approach 1:
The patent removes the mandatory fuel pressure sensor from the system, extracting only the essential temperature measurement function while eliminating unnecessary pressure sensing complexity. The system uses only a temperature sensor to control fuel preheating, simplifying the device architecture while maintaining control precision.
Solution Approach 2:
The electronic control unit uses the temperature sensor data combined with pre-stored fuel flow rate and specific heat capacity information to self-calculate the required heating power, eliminating the need for external pressure sensors and complex control logic while achieving accurate temperature control.
2Object-generated harmful factors
If fuel is injected without precise temperature control, then the system is simpler, but pollutant emissions increase due to incomplete combustion
Solution Approach 1:
The patent implements a feedback control system where the temperature sensor continuously monitors fuel temperature and the electronic control unit adjusts the heating power accordingly. This closed-loop feedback ensures precise temperature control that optimizes combustion efficiency and minimizes pollutant emissions.
Solution Approach 2:
The system dynamically changes the fuel temperature parameter by controlling the heating element based on real-time temperature sensor data. By precisely adjusting the temperature parameter, the system achieves optimal combustion conditions that reduce harmful emissions while maintaining operational simplicity.
3Measurement precision
If more power is supplied to heat the fuel, then fuel temperature control precision improves, but energy consumption increases
Solution Approach 1:
The patent applies partial heating action by supplying only the necessary amount of power to achieve the target fuel temperature. The electronic control unit calculates and applies just enough heating power based on temperature sensor feedback, avoiding excessive energy consumption while maintaining precise temperature control.
Solution Approach 2:
The system optimizes energy consumption by dynamically changing the heating power parameter based on the actual temperature deviation from the target. When the fuel temperature is close to the target, minimal or no heating power is applied, reducing energy consumption while maintaining temperature precision through continuous monitoring.
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, leading to reduced emissions of pollutants and improved fuel efficiency, with the ability to anticipate and adjust fuel heating during dynamic engine conditions, thereby lowering CO2 and other pollutant gas emissions.
Implementation Method 1
at least one fuel heating device provided with a heating chamber (131), said heating device being placed adjacent to the fuel injecting device
Implementation Method 2
measuring the fuel temperature upstream of the heating device by means of a temperature sensor associated with the fuel distribution system
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.