ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,901, issued on March 17, was assigned to Mazda Motor Corp. (Aki-gun, Japan).
"Water jacket spacer structure" was invented by Masafumi Takeda (Aki-gun, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A structure of a water jacket spacer inserted into a water jacket between an outer wall surface of a cylinder bore wall of an engine and an inner wall surface of a cylinder block includes a spacer body member including upper and lower wall parts which are closer to the inner and outer wall surfaces in upper and lower parts of the water jacket, respectively, and an elongated contact member fixed at one end to the upper wall part, changeable between ...