Adaptive Intake Bypass Valve for Filtration Systems
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Solution Overview
Problem
Internal combustion engine filtration systems face parasitic losses and increased contamination levels during transient conditions, leading to reduced fuel economy, component wear, and shortened filtration system life due to unnecessary pre-cleaner restrictions and re-entrained contaminants.
Innovation Solution
An adaptive filtration system with a bypass valve and air quality sensor for air filtration, and an electronic control unit with sensors for fluid filtration systems to switch between normal and enhanced modes based on detected events, allowing for optimized filtration during clean and dirty conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If a pre-cleaner is installed in the air filtration system, then the filter media life is extended by removing dust and particulate matter, but parasitic air pressure losses increase reducing fuel economy
Solution Approach 1:
The system dynamically adjusts the pre-cleaner operation based on real-time air quality conditions. The controller monitors air quality sensors and actuates the bypass valve to either route air through the pre-cleaner (when contamination is high) or bypass the pre-cleaner (when air is clean), making the filtration path adaptable rather than fixed.
Solution Approach 2:
The system changes the flow path parameter based on air quality conditions. By actuating the bypass valve between open and closed positions, the system switches between two distinct flow configurations: one where air passes through the pre-cleaner and another where air bypasses it, optimizing performance for different operating conditions.
2Reliability
If multiple filter elements are introduced in the filtration system, then contamination removal capability is improved, but liquid pressure losses increase reducing system efficiency
Solution Approach 1:
The system dynamically switches between normal filtration mode (single filter element) and enhanced filtration mode (multiple filter elements including pre-filter and main filter) based on detected contamination events such as tank fill-ups or start-up conditions, optimizing both protection and efficiency.
Solution Approach 2:
The system activates enhanced filtration mode in advance during identified high-contamination events like tank fill-ups or start-up conditions, where pre-filters and main filters work together before contaminants can cause damage, then returns to normal mode when conditions stabilize.
3Reliability
If the pre-cleaner operates continuously, then dust and particulate matter are consistently removed from intake air, but unnecessary parasitic losses occur during clean air operation
Solution Approach 1:
The system uses air quality sensors to continuously monitor contamination levels and provides feedback to the controller. Based on this feedback, the controller adjusts the bypass valve position to either engage or bypass the pre-cleaner, creating a closed-loop control system that adapts to real-time air quality conditions.
Solution Approach 2:
The system automatically adjusts its own operation based on sensor feedback without requiring external intervention. The controller monitors air quality conditions and self-regulates the pre-cleaner engagement through the bypass valve, optimizing performance based on actual environmental conditions.
Data Source
AI summary
Filtration systems having a normal filtration mode and an enhanced filtration mode are described. In some arrangements, the filtration system is an air filtration system having a primary air filter element, a pre-cleaner, and a pre-cleaner bypass valve. Based on feedback from an intake air quality sensor the bypass valve is either opened or closed to selectively route intake air through the pre-cleaner during sensed dirty air operating conditions (e.g., heavy dust or moisture concentrations). In other arrangements, the filtration system is a liquid filtration system (e.g., a fuel or oil filtration system) that has a main filter and a secondary filter. The filtration system selectively routes the liquid being filtered through the main filter, the secondary filter, or a combination thereof depending on a detected event or sensed characteristic of the liquid.