ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,153, issued on Dec. 30.
"Locking unit with pilot valve" was invented by Ralph Wassermann (Holzgunz, Germany) and Florian Holzle (Illertissen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A locking unit can include: a housing having a fluid inlet and a fluid outlet which are connectable to a coolant circuit, and a pilot pressure chamber; a fluid duct which fluidically connects the fluid inlet to the pilot pressure chamber; a solenoid; a piston; a pilot valve, wherein an armature and/or an armature rod of the solenoid adjusts the pilot valve between a pilot valve open position which releases the fluid duct and a pilot valve closed position w...