ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,465, issued on Nov. 25, was assigned to HITACHI ASTEMO LTD. (Ibaraki, Japan).
"Fuel pump" was invented by Satoshi Usui (Hitachinaka, Japan) and Minoru Hashida (Hitachinaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a fuel pump capable of discharging fuel at high pressure and suppressing sticking between a plunger and a cylinder. A high-pressure fuel supply pump includes a plunger that reciprocates, a cylinder in which a guide hole for guiding a reciprocating motion of the plunger extends in an axial direction, and a pump body including a third room (cylinder insertion hole) into which the cylinder is press-f...