Patent ID: 11946397
Assignee: CATERPILLAR INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 17:
18. An engine comprising:
a crankcase having a blow-by gas passing therethrough;
an on engine liquid source containing one of engine coolant or engine lube oil heated prior to startup of the engine to a first desired temperature range; and
an oil separating apparatus in fluid communication with the blow-by gas and having a coalescing filter to separate oil from the blow-by gas, wherein separate from the blow-by gas and the coalescing filter, the oil separating apparatus is in fluid communication with the liquid source to receive the one of engine coolant or engine lube oil, wherein the one of engine coolant or engine lube oil is passed through the oil separating apparatus in a heat exchange relationship with the blow-by gas to maintain a second desired temperature range for the blow-by gas.