Patent ID: 7476090
Filing Date: 2009-01-13
Classification: F01D,F02B,F02C,F04D,F05D

Abstract:
1. An Internal combustion engine comprising: an engine structure having an Internal volume including an oil reservoir, wherein an amount of oil is collected in an oil pool in the reservoir; a turbocharger mounted to said engine structure and having a center-housing connected to a turbine housing and a compressor housing; wherein the center-housing includes an oil pump in fluid communication with the oil supply passage and the oil pool; a vent tube fluidly connecting the vent passage with the internal volume, wherein the vent tube is arranged to equalize pressure of the oil cavity In the center-housing to pressure of the internal volume of the engine structure by communicating with the oil cavity through the vent passage in the center-housing and not through the oil supply and oil passages.