Valve Flap Spherical Elevation for Mass Flow Adaptation
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Solution Overview
Problem
Existing valve devices require multiple housing and flow channel designs to accommodate different maximum mass flow requirements, leading to increased production costs and complexity due to the need for various casting molds.
Innovation Solution
A valve device with a flap featuring spherical elevations on at least one side, allowing for adjustable flow cross sections without altering the housing, achieved through careful design of hemispherical or semi-ellipsoidal elevations that reduce turbulence and enable adaptation to various mass flow needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a disk-shaped flap is used to achieve maximum mass flow, then the flow cross section is maximized, but multiple housing designs are required for different mass flow requirements
Solution Approach 1:
The invention separates the flow control function from the housing structure by introducing a spherical elevation on the flap that can be independently adjusted. This allows the housing to remain standardized while the flap geometry is modified to achieve different mass flow rates, effectively segmenting the adjustable parameter from the fixed structure.
Solution Approach 2:
The spherical elevation on the flap allows for continuous adjustment of the flow cross section by changing the effective area parameter. By varying the spherical elevation dimensions or position, different mass flow rates can be achieved with the same housing, eliminating the need for multiple housing designs.
2Adaptability or versatility
If the flow cross section is reduced to accommodate lower mass flow requirements, then a single housing design can be used, but the flow efficiency decreases
Solution Approach 1:
The spherical elevation on the flap introduces curved surfaces that guide flow more smoothly compared to flat disk edges. This curvature reduces flow separation and turbulence, maintaining higher flow efficiency even when the effective flow cross section is reduced for lower mass flow requirements.
Solution Approach 2:
The spherical elevation can be dynamically adjusted in position or dimension to optimize the flow cross section for different operating conditions. This dynamic adaptability allows the same housing to efficiently handle a range of mass flow rates by optimizing the flap geometry in real-time.
3Adaptability or versatility
If multiple casting molds are produced for different housing designs, then different mass flow requirements can be met, but production costs increase
Solution Approach 1:
The standardized housing design with the adjustable spherical elevation flap serves multiple functions: it can accommodate different mass flow requirements, maintain flow efficiency, and reduce production costs. This universal design eliminates the need for multiple specialized housing designs, making the same housing suitable for various application scenarios.
Data Source
AI summary
A valve device for a motor vehicle includes a housing, a flow channel located in the housing, and a flap arranged in the flow channel for closing the flow channel. The flap has regions in which a shaft penetrating the flap is fastened, and the shaft is rotatably supported in the housing. The flap has a spherical elevation at least on one side.