MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202617071533 A) filed by Walvoil S. P. A. on June 09, 2026, for Open-Centre Valve Device For Operating Machines.
Inventors include Denti, Guido; Mesturini, Davide; and Talami, Matteo Number.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: An open-centre valve device for heavy equipment machines comprises a first section and a second section connected to respective pairs of work ports, a high-pressure line and a discharge line. Each of said sections comprises a spool control element. The valve device further includes one or more free flow segments and a series duct. At least one of said sections comprises at least one branching duct which connects a respective series duct with said discharge or to a low-pressure line independent of said discharge. A pressure valve is arranged along the branching duct, said pressure valve being normally closed and configured in such a way as to open upon reaching a certain pressure in said branching duct in such a way that the fluid flowing in said series duct is primarily sent to said discharge or said low-pressure line. Said valve device further comprises a non-return valve arranged along said series duct downstream of a branching point at which said branching duct connects to said series duct.
Disclaimer: Curated by HT Syndication.
