US Patent Issued to Hitachi Astemo on Sept. 30 for "Prestroke adjustment method for fuel injection valve" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,018, issued on Sept. 30, was assigned to Hitachi Astemo Ltd. (Hitachinaka, Japan).

"Prestroke adjustment method for fuel injection valve" was invented by Ryohei Matsutake (Hitachinaka, Japan), Kenichi Gunji (Hitachinaka, Japan) and Masashi Sugaya (Hitachinaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a prestroke adjustment method for a fuel injection valve capable of reducing variations in a prestroke amount regardless of the level of machining accuracy of a component. The prestroke adjustment method adjusts a prestroke amount D2 of a fuel injection valve 1 including a gap forming member 50 that forms a gap G2 defining a pre...