Cooling Device for Additive Injection Valve
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cooling devices for injection valves face inefficiencies in coolant distribution and pressure loss, leading to reduced cooling efficiency at the distal end of the injection valve where temperature increases occur, especially when coolant flow rates vary.
Innovation Solution
A cooling device connected to a coolant circulation circuit in parallel with a water-cooled charge air cooler, featuring a movable member that adjusts the passage area of a coolant path in response to coolant flow rates, optimizing coolant distribution and reducing pressure loss by varying the passage area based on flow direction and amount.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the coolant passage area is fixed, then the device structure is simple, but the cooling efficiency decreases when coolant flow rate varies
Solution Approach 1:
The patent applies the dynamics principle by making the coolant passage area variable rather than fixed. A movable member is introduced that can shift position to dynamically adjust the passage area of the coolant path. This allows the cooling device to adapt to varying coolant flow rates and maintain optimal cooling efficiency at the injection valve distal end, while the movable member provides mechanical adjustment capability within the existing device structure.
2Loss of energy
If the coolant passage area is increased, then the pressure loss decreases, but the cooling efficiency at distal end decreases
Solution Approach 1:
The patent applies the local quality principle by creating different passage areas at different locations within the coolant path. The movable member selectively adjusts the passage area of a specific portion of the coolant path that supplies the injection valve, while other portions maintain their original dimensions. This localized adjustment allows optimization of both pressure loss and cooling efficiency at the distal end without compromising overall system performance.
Solution Approach 2:
The movable member enables dynamic adjustment of the passage area based on operating conditions. By shifting the movable member to different positions, the system can adapt the passage area to match varying coolant flow rates, thereby maintaining optimal balance between pressure loss and cooling efficiency under different operating scenarios.
3Reliability
If a movable member is added to adjust passage area, then the cooling efficiency is improved, but the device complexity increases
Solution Approach 1:
The movable member is designed to perform multiple functions: it adjusts the passage area of the coolant path, guides the coolant flow, and can be actuated by various means (manual or automated). This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity while achieving improved cooling efficiency through dynamic passage area adjustment.
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
This solution dynamically adjusts the coolant path passage area to match varying coolant flow rates, reducing pressure loss and maintaining efficient cooling at the injection valve's distal end, thereby enhancing the cooling efficiency and adapting coolant distribution proportions between the cooling device and the water-cooled charge air cooler.
Implementation Method 1
a movable member that receives a flow of the coolant and shifts to vary a passage area of a predetermined portion of the coolant path
Implementation Method 2
a cooling device which uses a coolant to cool an injection valve for injecting an additive
Data Source
AI summary
A cooling device for an additive injection valve is connected to a circulation circuit for coolant in parallel with a different cooling device. The cooling device includes a coolant path through which the coolant flows, and a movable member that receives a flow of the coolant and shifts to vary a passage area of a predetermined portion of the coolant path.