ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,187, issued on Jan. 13, was assigned to ISUZU MOTORS Ltd. (Yokohama, Japan).
"Internal combustion engine and cylinder block" was invented by Yasuhiro Ishikawa (Fujisawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An internal combustion engine includes: a cylinder block that includes a cylinder; and a piston that is stored in the cylinder in a manner capable of reciprocating along an axis line of the cylinder, in which the cylinder includes an oval inner circumference portion in which a diameter in a thrust-anti thrust direction is a minor diameter."
The patent was filed on March 19, 2024, under Application No. 18/609,753.
*For further in...