Patent ID: 7165651
Filing Date: 2007-01-23
Classification: F01M,F16H,Y10T

Abstract:
1. A lubricating structure of an engine for vehicle, comprising: a main pump for pressure-feeding lubrication oil collected in a bottom portion of a transmission room formed in a crankcase of the engine to lubrication points of the engine; a scavenging pump for pumping the lubricating oil out of a bottom portion of a crank room formed in the crankcase, wherein the crank room is divided from the transmission room by a partition formed in at least the bottom portion of the crank room, and for transferring the lubricating oil to the transmission room, and wherein the scavenging pump includes a discharging portion; an oil storage room disposed to the side of the transmission room, communicating with the discharging portion of the scavenging pump, and for storing the lubricating oil supplied from the scavenging pump; a transmission shaft arranged in the transmission room such that one end portion of the transmission shaft faces the oil storage room; and an oil passage formed in the transmission shaft, having an opening formed in the one end portion of the transmission shaft so as to open in the oil storage room, and extended from the opening to the lubrication points established on the transmission shaft; wherein the lubricating oil supplied from the scavenging pump and stored in the oil storage room is supplied to the lubrication points on the transmission shaft from the opening formed in the one end portion of the transmission shaft through the oil passage, is dropped from the lubrication points, and then collected in the bottom portion of the transmission room.