US Patent Issued to BRP-ROTAX on Oct. 6 for "Internal combustion engine with combustion pre-chamber" (Austrian, German Inventors)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,753,717, issued on Oct. 6, was assigned to BRP-ROTAX GMBH & Co. KG (Gunskirchen, Austria).

"Internal combustion engine with combustion pre-chamber" was invented by Thomas Gruber (Gangkofen, Germany), Heinz Kusel (Pennewang, Austria), Claudio Hoff (Sattledt, Austria), Christian Stiebinger (Buchkirchen, Austria) and Thomas Zorn (Stadl-Paura, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "An internal combustion engine having: a cylinder block defining a cylinder; a cylinder head defining a seat; a piston; a crankshaft, the piston, cylinder, and cylinder head defining a variable volume combustion chamber therebetween; an air intake passage; an exhaus...