Motorcycle engine and motorcycle

• Main Authors: WANG WENQIAN, BAI QINGXIANG, SU JILI
• Format: Patent
• Language: Chinese; English
• Published: 23.05.2023
• Subjects: ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES; BEARINGS; BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model relates to the field of engines, and discloses a motorcycle engine and a motorcycle, the motorcycle engine comprises a crankshaft, a first bearing, a second bearing, a crankshaft gap adjusting gasket and a box body, the first bearing and the second bearing are arranged on the crankshaft at an interval and are arranged in a box body bearing seat at an interval; the crankshaft gap adjusting gasket is arranged around the crankshaft in the circumferential direction and located between the box body and the second bearing, and the crankshaft gap adjusting gasket and the inner ring of the second bearing are arranged in an avoiding mode. The crankshaft clearance adjusting gasket has the advantages that the axial clearance between the crankshaft bearing and the box body is reduced through the crankshaft clearance adjusting gasket, noise is reduced, the sound quality of an engine is improved, other installation structures are avoided through the design of avoiding the bearing inner ring, interference