MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202641106119 A) filed by Sri Eshwar College Of Engineering on September 03, 2026, for Progressive Multi-Stage Asymmetric Flow Control Device With Gradient Flow-Path Geometry.
Inventors include Dr. Y. Sureshbabu; and Rohith R.
The application for the patent was published on September 11, 2026, under issue no. 37/2026.
Abstract: The present invention relates to a progressive multi-stage asymmetric flow control device with gradient flow-path geometry for providing passive directional control of fluid flow without the use of movable mechanical components, external actuation or electrical power. The device comprises a fluid inlet, a fluid outlet, a primary flow channel and a plurality of interconnected asymmetric flow-control stages arranged along the primary flow channel. Each flow-control stage comprises one or more branch passages configured to redirect fluid according to the direction of flow. Unlike conventional passive flow-control devices having substantially repeated flow- control geometries, the present invention employs progressively varying geometrical characteristics between successive flow-control stages to establish a distributed hydraulic resistance profile along the flow path. The geometrical characteristics may include branch-channel width, branch-channel length, branch-entry angle, bend angle, curvature radius, branch-to-main-channel area ratio, loop dimensions, recirculation-region dimensions and arrangement of secondary passages. During fluid flow in a first direction, the primary flow channel provides a comparatively continuous and low-resistance path, thereby reducing unnecessary pressure loss. During fluid flow in an opposite direction, the asymmetric branch passages divert the fluid through secondary passages, bends, loops and recirculation regions. The resulting flow separation, turbulence, momentum exchange, velocity redistribution and energy dissipation increase the hydraulic resistance and pressure drop in the reverse direction. The progressive arrangement of the flow-control stages enables the hydraulic resistance to be distributed over multiple regions instead of being concentrated at a single location. A flow-conditioning region may be provided near the inlet to guide the incoming fluid, while a flow-recovery region may be provided near the outlet to facilitate recombination of fluid and reduce downstream pressure loss. The device may be designed and optimized using computational fluid dynamics by evaluating pressure distribution, velocity distribution, turbulence, recirculation and forward-to-reverse pressure-drop characteristics. The device may be fabricated as an integral fixed-geometry body using additive manufacturing, 3D printing, CNC machining, laser cutting, moulding, polymer fabrication, acrylic fabrication, metallic fabrication or composite fabrication.
Disclaimer: Curated by HT Syndication.
