MUMBAI, India, Feb. 6 -- Intellectual Property India has published a patent application (202541124293 A) filed by Antonio Joseph V K; Jinsha Rajeevan; and Gireesh Kumaran Thampi B S, Ernakulam, Kerala, on Dec. 9, 2025, for 'hybrid-energy recovery and knock suppression system for a spark ignition engine and its method thereof.'
Inventor(s) include Antonio Joseph V K; Jinsha Rajeevan; and Gireesh Kumaran Thampi B S.
The application for the patent was published on Feb. 6, under issue no. 06/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a hybrid energy recovery and knock suppression system for a spark ignition (SI) engine. It integrates a two-cylinder SI engine with a double-acting cylinder coupled to linear electromagnetic generators. The system captures exhaust gas energy to generate supplementary electricity while enhancing combustion stability. Exhaust gas enters each chamber of the double-acting cylinder, where it is compressed, and a controlled amount of water is injected near the end of compression. The water absorbs heat, vaporizes into steam, and raises chamber pressure, driving a central piston whose linear motion is converted into electrical power. Sensors monitor exhaust gas temperature and moisture to regulate water injection in real time. A fraction of the expanded steam-gas mixture is recirculated as cooled EGR, lowering in-cylinder temperature and suppressing knock. The dual-mode operation improves efficiency, supports higher compression ratios, and recovers waste heat as usable energy."
Disclaimer: Curated by HT Syndication.
