[Problem] To provide an engine system that efficiently discharges blow-by gas from a crank chamber with ease, and that is capable of providing a further backfire countermeasure.[Solution] An engine system in which blow-by gas with a specific gravity less t...

[Problem] To provide an engine system that efficiently discharges blow-by gas from a crank chamber with ease, and that is capable of providing a further backfire countermeasure. [0002] [Solution] An engine system in which blow-by gas with a specific gravit...