Engine main shaft tile

The utility model relates to an engine main shaft tile has been equipped with the small ripple of oil storage function on the friction surface of main shaft tile, the ripple comprises the recess that sets up side by side, and the length direction of the recess direction of rotation made of baked clay with the main shaft unanimously, the width of recess is 0.25-0.35mm, and the degree of depth is 0.0015-0.0065mm, the wall thickness of main shaft tile is unanimous, the degree of depth of recess is deepened to both ends by the bottom of main shaft tile gradually. The utility model discloses be equipped with the ripple on the friction surface of main shaft tile, the oil film is survivable under the high load capacity, prevents main shaft tile and bent axle friction, and the corrugated is provided with and does benefit to the break -in of engine initial stage simultaneously. The degree of depth of recess is deepened to both ends by the bottom of main shaft tile gradually, and the attenuate district has been cancelled to the main shaft tile simultaneously, and these improvement help reducing the engine oil leaking volume of main shaft tile department, can reduce required oil pump power to reduce the mechanical loss of engine, and promote the fuel feeding ability to the connecting rod bearing shell.