Intellectual Property India Publishes Patent Application for Lubricant Compositions Containing Silicon For Reduced Pre-Ignition In Hydrogen Fueled Engines

MUMBAI, India, July 7 -- Intellectual Property India has published a patent application (202617070036 A) filed by Infineum International Limited on June 04, 2026, for Lubricant Compositions Containing Silicon For Reduced Pre-Ignition In Hydrogen Fueled Engines.

Inventors include Featherstone, Thomas M.; Mutter, Ellis; Chirita, Roxana; Marsh, Adam P. Number; Driver, Mark P.; and Ritchie, Andrew J. D..

The application for the patent was published on July 03, 2026, under issue no. 27/2026.

Abstract: This invention relates to a method of reducing abnormal combustion events in a hydrogen fueled internal combustion engine (HICE) during operation of the engine. The method includes the steps of: a) providing to the HICE a lubricating oil composition including or resulting from the admixing of: i) a base oil having a KV100 of less than or equal to 12 cSt and included at greater than 50 wt.% of the composition and comprising a Group I base oil, a Group II base oil, a Group HI base oil, a Group IV base oil, or combinations thereof; ii) at least one overbased metal containing detergent with a Total Base Number (KOH/g) greater than or equal to 9 and less than or equal to 500 and included at a treat level to deliver between 100 to 5000 ppm by weight of total metal and between 0.15 wt. % to 8.0 wt. % of total soap to the composition; iii) at least one silicon containing compound included at a treat level to deliver between 50 to 900 ppm by weight of total silicon to the composition; and iv) the lubricating oil composition having a total sulfated ash of less than or equal to 2.0 wt.%, a total phosphorous level of less than or equal to 0.120 wt.%, and a SAE viscosity grade of 25W-X, 20W-X, 15W- X, 10W-X, 5W-X or 0W-X, where X represents any one of 8, 12, 16, 20, 30, 40, 50 or 60; b) providing a fuel comprising hydrogen to the HICE; and c) combusting the fuel in the HICE. Also provided are a lubricating oil composition and a concentrate for use in a HICE to reduce the propensity for abnormal combustion events.

Disclaimer: Curated by HT Syndication.