Low oil consumption type engine crankcase and engine set

The invention discloses a low oil consumption type engine crankcase and engine set comprising a crankcase and a cylinder head. An inner cavity of the crankcase is communicated with a rocker arm compartment at the upper end of the cylinder head through an air passage, the inner cavity is provided with an engine oil baffle used for blocking splashing engine oil from entering the air passage, and the baffle inclines from the air passage to an engine oil storage chamber. Since the engine oil baffle is added, splashing liquid engine oil can be effectively blocked from entering the air passage and entering the rocker arm chamber through the air passage while engine oil splash lubrication is unaffected, and further unnecessary consumption of the engine oil is reduced; besides, the liquid engine oil can be prevented from accumulating in the air passage to affect delivery of fresh air, and the requirements on conversion reaction in a silencer are met; the low oil consumption type engine crankcase and engine set is simple in structure and has positive practical significance to improvement of effective utilization of the engine oil and reduction of use cost.