CRANK SHAFT WITH OIL SCRAPER GROOVES

摘要

FIELD: power engineering industry; piston-type internal combustion engines. SUBSTANCE: to reduce specific consumption of oil and fuel, main journal and crankpin of crankshaft are provided with LH and RH oil scraper grooves whose depth ranges from 1.75 to 2.0 percent of main journal or crankpin radius. EFFECT: enhanced efficiency; reduction of oil and fuel by 0.72 g/hp-h and 3 percent respectively. 2 cl, 2 dwg