Patent ID: 7100562
Filing Date: 2006-09-05
Classification: F01M

Abstract:
1. A multicylinder internal combustion engine having a crankcase integrally formed with a plurality of support walls for supporting a crankshaft, a plurality of isolated crank chambers formed by partitioning a space inside of said crankcase with said support walls, and a plurality of oil outlet holes respectively communicating with said plurality of isolated crank chambers to separately discharge oil from said isolated crank chambers, said multicylinder internal combustion engine comprising: a crank chamber oil collecting pan mounted on a bottom wall of said crankcase so as to cover all of said oil outlet holes for collecting the oil passed through said oil outlet holes, said crank chamber oil collecting pan having an oil reservoir formed with an oil outlet opening; and a scavenging pump for drawing the oil stored in said crank chamber oil collecting pan through said oil outlet opening.