Integrated AdBlue Heater Assembly with Valve
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing AdBlue transfer equipment in vehicles is prone to contamination and urea freezing, leading to premature SCR catalyst failure and inefficient exhaust treatment due to inadequate heating and monitoring of the urea solution.
Innovation Solution
An integrated heater assembly with a heating element and valve arrangement is provided to maintain the AdBlue solution at optimal temperature, incorporating sensors for monitoring solution depth, concentration, and temperature, ensuring reliable urea supply and reducing manufacturing and installation costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate heater and valve system is used for AdBlue heating, then the heating function is provided, but the device complexity and installation cost increase
Solution Approach 1:
The patent combines the heater and valve into a single integrated heating assembly that is inserted through one aperture in the AdBlue tank. The valve is positioned within the tank to control coolant flow directly to the heating element, eliminating the need for separate mounting brackets, additional apertures, and external valve housings. This integration reduces device complexity while maintaining reliable AdBlue heating and supply control.
2Reliability
If multiple separate components are used for heating and flow control, then each component can be optimized, but the manufacturing and installation costs increase
Solution Approach 1:
The heating assembly integrates the valve body, heating element, and mounting structure into a single manufactured unit. The valve is positioned within the tank to control coolant flow directly to the heating element, eliminating the need for separate mounting brackets, additional apertures, and external valve housings. This integration reduces device complexity while maintaining reliable AdBlue heating and supply control.
3Device complexity
If heating is not provided, then the system is simpler, but urea freezing occurs leading to SCR catalyst failure
Solution Approach 1:
The patent uses a coolant fluid as an intermediary heat transfer medium. The valve controls the flow of this coolant through the heating element, which then transfers thermal energy to the AdBlue solution. This intermediary approach allows for controlled heating without directly heating the AdBlue, enabling reliable prevention of urea freezing while maintaining system simplicity.
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 integrated heater assembly enhances the reliability of AdBlue supply, prevents urea freezing, and maintains the chemical composition of AdBlue, thereby reducing the risk of SCR catalyst clogging and failure, ensuring effective exhaust treatment and compliance with emission regulations.
Implementation Method 1
a heating element for selectively warming the solution in the tank, wherein the heating element includes a duct through which hot coolant from the engine is operable to flow
Implementation Method 2
the head arrangement includes a valve for controlling flow of the fluid within the duct
Implementation Method 3
incorporating sensors for monitoring solution depth, concentration, and temperature
Data Source
AI summary
An integrated heater assembly (190) is operable to provide a supply of solution from a tank (200). The assembly (190) includes a head arrangement (290) for mounting onto a hole of the tank (200), and a heating element (210) for selectively warming the solution in the tank (200), wherein the heating element (210) includes a duct through which fluid for heating the solution is operable to flow, and wherein the head arrangement (290) includes a valve (220) for controlling flow of the fluid within the duct. The valve (220) is optionally retained in a snap-fit manner within a plastics material moulding of the head arrangement (290). Moreover, the valve (220) is optionally an electromagnetic solenoid valve. The assembly (109) is beneficially adapted for coping with urea solution in the tank (200).