Patent ID: 8256404
Filing Date: 2012-09-04
Classification: F01M

Abstract:
1. An oil separator for trapping oil mist contained in blow-by gas generated inside a crankcase of an engine, comprising: multiple cones arranged in a line; and a rectification chamber containing the cones for the blow-by gas, the rectification chamber extending in parallel to the line of cones and arranged on an upper side of the cones, said rectification chamber including a flow-in port for the blow-by gas, the flow-in port positioned at one end of the line of cones to force blow-by gas in a direction from said one end of the line of cones and into each of the cones, wherein: wherein a first cone is positioned nearer to the flow-in port than all other cones, the slit of the first cone includes a height approximately the same as a height of the first cone's partition wall, the slit of the first cone opens toward the flow-in port, and a portion of the partition wall that comprises a side surface of the slit is formed in parallel to an opening direction of the slit; and the slit of each cone other than the first cone extends between each such cone's partition wall and the common wall of each such cone and a cone positioned nearer to the flow-in port, wherein the slit of each such other cone includes a height approximately the same as a height of the each such cone's partition wall; and wherein said partition walls and said common walls are continuous with each other.