MUMBAI, India, Oct. 5 -- Intellectual Property India has published a patent application (202641115764 A) filed by Srm Institute Of Science And Technology, Ramapuram; and Easwari Engineering College on September 28, 2026, for Dual-Pipe Rotating Inner-Core Self-Cleaning Sewer System For Simultaneous Flow Enhancement And Sediment.
Inventors include Dr. R. Nandha Kumar; Dr. G. Deepana; and Dr. R. Divahar.
The application for the patent was published on October 02, 2026, under issue no. 40/2026.
Abstract: The present invention discloses a Dual-Pipe Rotating Inner-Core Self-Cleaning Sewer System designed to improve wastewater conveyance while minimizing sediment accumulation and reducing the need for manual maintenance. The system comprises an outer structural sewer conduit and a concentrically positioned rotatable inner- core assembly that creates an annular flow path for wastewater. The rotating inner-core is provided with helical transport fins, scraper elements, or flow-directing protrusions that simultaneously enhance hydraulic transport and remove deposits from the pipe walls during normal sewer operation. As the inner-core rotates, it generates controlled swirling and secondary flow patterns within the wastewater stream, preventing the settlement of suspended solids and promoting continuous transport of sludge, grit, grease, and other particulate matter. The cleaning elements mechanically disturb and loosen deposits adhering to the inner surface of the outer conduit, thereby reducing blockages and maintaining the effective flow area. This dual-action mechanism enables both flow enhancement and autonomous self-cleaning without interrupting wastewater conveyance. The rotating assembly is supported by corrosion-resistant bearing units and may be driven by an electric motor, hydraulic actuator, pneumatic actuator, or a flow-powered energy-harvesting mechanism. In certain embodiments, the system incorporates sensors to monitor flow velocity, torque, vibration, or sediment accumulation and automatically regulate the rotational speed of the inner-core to optimize cleaning efficiency while minimizing energy consumption. The modular architecture of the invention allows installation in newly constructed sewer networks as well as retrofitting into existing pipelines with limited structural modification. The replaceable inner-core assembly facilitates maintenance and reduces lifecycle costs. By continuously preventing sediment deposition and grease buildup, the invention significantly decreases the frequency of manual cleaning operations, lowers operational risks associated with confined- space entry, extends pipeline service life, and improves the overall reliability and hydraulic performance of urban wastewater infrastructure. The disclosed system is applicable to municipal sewer networks, industrial wastewater pipelines, stormwater conveyance systems, and other fluid transport applications requiring continuous self cleaning and enhanced solids management. Through the integration of mechanical cleaning and hydraulic flow optimization within a single concentric dual-pipe configuration, the invention provides an efficient, sustainable, and automated solution for modern sewer infrastructure.
Disclaimer: Curated by HT Syndication.
