Intake Chamber Vortex Layout for Low-Level Operating Medium Suction
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Solution Overview
Problem
Existing intake chambers for operating medium pumps in motor vehicles face challenges in efficiently handling and completely withdrawing operating medium, especially at low fill levels, due to space constraints and inefficient suction mechanisms.
Innovation Solution
The design incorporates a housing with laterally arranged inlet openings and deflecting walls, featuring undercuts and flow control structures to create a vortex effect, reducing installation space requirements and enhancing suction efficiency by forming a negative pressure that aids in the complete withdrawal of the operating medium.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the connector is arranged laterally in the housing, then the suction removal efficiency is improved, but the installation space requirement in horizontal direction increases
Solution Approach 1:
The connector is arranged in the upper side of the housing instead of laterally, changing the spatial dimension from horizontal to vertical. This dimensional change allows the suction removal to be performed from above, significantly reducing the horizontal installation space requirement while maintaining effective suction capability through the vertically oriented connector and internally configured deflecting walls.
2Productivity
If deflecting walls are added to conduct operating medium toward the connector, then the suction efficiency is improved, but the device complexity increases
Solution Approach 1:
The housing interior is segmented into multiple functional zones by the deflecting walls, which divide the space to guide operating medium flow from the lateral inlet openings toward the upper connector. This segmentation creates distinct flow paths that improve suction efficiency by directing fluid toward the extraction point while maintaining a relatively simple overall housing structure.
3Productivity
If an undercut is formed on the inside of the inlet opening, then the vortex formation and suction effect are enhanced, but the manufacturing precision requirement increases
Solution Approach 1:
An undercut with a curved or recessed geometry is formed on the inside of the inlet opening, creating a vortex-generating structure. This curved feature引导 the operating medium to rotate as it enters the housing, enhancing the suction effect through centrifugal forces. The undercut geometry is designed to be manufacturable while effectively generating the desired vortex flow pattern.
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 design significantly reduces installation space requirements, ensures efficient suction removal of operating medium even at low fill levels, and maintains vortex action for effective medium withdrawal, preventing leakage and promoting uniform flow.
Implementation Method 1
When the operating medium impinges on this space, a vortex is consequently formed. This generates a negative pressure and thus a suction which sucks further operating medium into the intake chamber.
Implementation Method 2
This generates a negative pressure and thus a suction which sucks further operating medium into the intake chamber.
Data Source
AI summary
An intake chamber (10) for an operating medium pump for sucking up operating medium stored in an operating medium tank of a motor vehicle, comprising a housing (20) in which at least two inlet openings (31, 32) for admitting operating medium to a connection (60) formed in the top side of the housing (20) are formed, wherein a deflecting wall (51, 52) is arranged in the housing (20) be-tween each inlet opening (31, 32) and the connection (60). Undercuts (81, 82) are formed on the inside of the inlet openings (31, 32). A suction jet pump or operating medium pump with at least one such intake chamber 10 is also disclosed.