Modular assemblies for crankcase oil separators

A method of separating oil from a blow-by gas of an engine, the method comprising:

• passing the blow-by gas to a first oil separating apparatus and a second oil separating apparatus, wherein the first oil separating apparatus and the second oil separating apparatus are physically coupled together along interfacing surfaces and in fluid communication with one another as an array;
• separating the blow-by gas by passing the blow-by gas through respective filters of the first oil separating apparatus and the second oil separating apparatus;
• removing the oil from the blow-by gas with the respective filters;
• recombining the blow-by gas after passing from the respective filters;
• and
• passing the blow-by gas as a single flow stream from the first oil separating apparatus and the second oil separating apparatus;
• wherein passing the blow-by gas to the first oil separating apparatus and the second oil separating apparatus passes the blow-by gas through a first manifold of a first cover of the first oil separating apparatus to a third manifold of a third cover of the second oil separating apparatus, and wherein the first cover and the third cover are coupled to respective first ends of the first oil separating apparatus and the second oil separating apparatus;
• and wherein recombining the blow-by gas after passing from the respective filters passes the blow-by gas through a second manifold of a second cover of the first oil separating apparatus to a fourth manifold of a fourth cover of the second oil separating apparatus, wherein the second cover and the fourth cover are coupled to respective second ends of the first oil separating apparatus and the second oil separating apparatus, and wherein the respective second ends oppose the respective first ends of the first oil separating apparatus and the second oil separating apparatus.

An engine system comprising:

• an engine;
• an array of oil separating apparatuses, wherein the array of the oil separating apparatuses includes an assembly of at least a first oil separating apparatus and a second oil separating apparatus that are physically coupled together along interfacing surfaces and in fluid communication with one another;
• a first one or more fluid lines configured to pass a blow-by gas from the engine to the array of the oil separating apparatuses, wherein oil is separated from the blow-by gas by passing through respective filters of the least the first oil separating apparatus and the second oil separating apparatus, wherein the array of the oil separating apparatuses includes an inner housing and an outer housing forming a jacket therebetween, wherein the inner housing is configured to hold one of the respective filters, and wherein each jacket is in fluid communication with one another and is configured to receive one or more of ambient air, boost air, water, or a lube oil;
• a second one or more fluid lines configured to pass passing the blow-by gas from the array of the oil separating apparatuses back to the engine;
• and,
• wherein each oil separating apparatus comprises an inlet manifold and an outlet manifold separated by the outer housing.