MUMBAI, India, Feb. 13 -- Intellectual Property India has published a patent application (202611002195 A) filed by Lovely Professional University, Phagwara, Punjab, on Jan. 8, for 'method for producing powder metallurgy valve guide for ic engines.'
Inventor(s) include Dr. Baljeet Singh.
The application for the patent was published on Feb. 13, under issue no. 07/2026.
According to the abstract released by the Intellectual Property India: "The present invention provides a method (100) for producing a valve guide for internal combustion engines using powder metallurgy. The method (100) includes preparing and blending a powder mixture of iron, copper, molybdenum, graphite, nickel, and optional strengthening agents, compacting the mixture under high pressure, and sintering in a controlled reducing atmosphere. The resulting valve guide has a graded porosity structure, with 3-5% porosity at the outer surface for strength and 8-10% porosity at the inner surface for lubricant retention. Optional secondary densification and lubricant impregnation further enhance wear resistance, self-lubrication, and dimensional stability. The valve guide exhibits high hardness, low friction, and extended service life, offering a cost-effective, environmentally friendly, and reproducible manufacturing solution for various IC engine applications."
Disclaimer: Curated by HT Syndication.
