Separate Filter Module Layout for Continuous Vehicle Fluid Supply
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Solution Overview
Problem
Classic fluid delivery systems for motor vehicles face challenges such as high flow resistance and power requirements due to filter modules, and are susceptible to air suction during extreme driving conditions, which can lead to interruptions in fluid supply to machine assemblies, potentially causing damage.
Innovation Solution
A fluid delivery system with a dual-pump configuration and a housing design that includes multiple suction and pressure ports, return openings, and a baffle plate to manage fluid circulation and ensure continuous supply, reducing power requirements and minimizing air suction during centrifugal forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter module is integrated into the fluid delivery system, then fluid filtration is improved, but flow resistance and power requirement increase
Solution Approach 1:
The fluid delivery system is divided into separate functional modules: a filter module with housing and filter element, and a pump module with pump unit. This segmentation allows the filter to be optimized for filtration performance while the pump is optimized for energy-efficient fluid delivery, reducing overall power requirements compared to integrated designs.
2Weight of moving object
If the reservoir is positioned low in the vehicle, then center of gravity is lowered, but air suction occurs during extreme driving conditions
Solution Approach 1:
A venturi tube is introduced as an intermediary component between the reservoir and pump inlet. The venturi tube creates a low-pressure zone that actively draws fluid from the reservoir even when the pump is positioned low, preventing air suction during extreme driving conditions while maintaining the low center of gravity benefit.
Solution Approach 2:
The system uses pneumatic pressure differentials created by the venturi effect to ensure continuous fluid supply to the pump inlet. The pressure differential generated during vehicle acceleration and cornering forces fluid toward the pump inlet, preventing air ingestion despite the low reservoir position.
3Volume of moving object
If the pump is positioned low to optimize space, then space utilization is improved, but air suction risk increases
Solution Approach 1:
The venturi tube serves as a mediator that compensates for the low pump position by creating active suction. The venturi geometry converts fluid flow into pressure differential, ensuring the pump inlet remains filled with fluid even when the pump is positioned at the lowest practical location for space optimization.
4Reliability
If a deep recess is created in the reservoir, then fluid availability at aspiration point is improved, but vertical space requirement increases
Solution Approach 1:
Instead of creating a deep recess in the reservoir to store fluid near the aspiration point, the invention inverts the approach by using the venturi tube to actively draw fluid upward from a shallow reservoir position. This eliminates the need for vertical recesses while ensuring fluid availability through pneumatic action.
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 reliably supplies fluid to machine assemblies with reduced power consumption and prevents interruptions, ensuring continuous lubrication and cooling, even under extreme driving conditions, while optimizing space and lowering the vehicle's center of gravity.
Implementation Method 1
a venturi tube is fluidically connected to the reservoir and to the inlet of the pump unit, in particular the suction line
Implementation Method 2
Classic fluid delivery systems for supplying fluid to a machine assembly, in particular within the motor vehicle sector for supplying fluid to an engine or transmission, are usually based on forced-feed lubrication
Implementation Method 3
Such fluid delivery systems usually comprise at least one filter module for filtering the fluid of particles and/or contaminants before it is fed to the machine assembly
Data Source
AI summary
A fluid delivery system for supplying fluid to at least one machine assembly, in particular an engine and/or transmission of a motor vehicle, including: a first pump and a second pump; a drive for driving the first pump and/or the second pump; a reservoir for storing the fluid; and a filter module for filtering the fluid, wherein the first pump delivers fluid from the reservoir to the machine assembly in a supply flow and the second pump is arranged downstream of the machine assembly and delivers at least some of the fluid into the reservoir in a sub-flow downstream of the machine assembly and the filter module is embodied in the sub-flow.