Patent ID: 11867099
Assignee: CATERPILLAR INC.
Field: Chemical engineering (Chemistry)
Classification: CPC F  B | IPC B  F

Claim 7:
8. A method of maintaining blow-by gas from a crankcase of an engine within a desired temperature range when passing through an oil separating device, the method comprising: passing the blow-by gas from the crankcase to the oil separating device; compressing air passing to the engine; mixing at least a portion of the compressed air with cooler air to create a boost air having a desired temperature range, wherein the mixing at least a portion of the compressed air with the cooler air is to achieve a desired temperature for the boost air, wherein the desired temperature is above a dew point temperature of the blow-by gas and below a temperature at which one or more components of the oil separating device become inoperable; drawing the boost air through the oil separating device in a heat transfer relationship with the blow-by gas passing through the oil separating device; separating oil from the blow-by gas within the oil separating device; passing the oil separated by the oil separating device to the crankcase; and a jet pump combining the blow-by gas and the boost air after passing through the oil separating device.