MUMBAI, India, Jan. 2 -- Intellectual Property India has published a patent application (202541123535 A) filed by New Horizon College Of Engineering; and Dr. T. Kavitha, Bangalore, Karnataka, on Dec. 8, 2025, for 'assist pistons for continuous torque delivery in x-engines.'
Inventor(s) include Dr. T. Kavitha; Mr. Chirantana K M; and Mr. Thiruvikram Karthikeyan.
The application for the patent was published on Jan. 2, under issue no. 01/2026.
According to the abstract released by the Intellectual Property India: "The invention discloses an assist piston system (110) integrated into an X+I configuration internal combustion engine (100). The vertically opposed assist pistons (110) cancel primary shaking forces and contribute additional power strokes, reducing torque pulse intervals and enhancing dynamic balance. A multi-stage dry-sump lubrication system (400) with a dedicated scavenge pump (108) ensures reliable operation of the inverted piston, while a dual-stage thermal management system (300) with a liquid-to-air intercooler (202) and Water-Methanol Injection subsystem (102) suppresses detonation under high boost. By addressing the historical weaknesses of the X-engine, the invention enables smoother torque delivery and improved stability."
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