Internal combustion engine with an oil-cooled the cylinder block and method for operating such an internal combustion engine

摘要

Disclosed is an internal combustion engine (1) with at least one cylinder head (1a) and a cylinder block (1b), in the case of the– the serving as the upper crankcase half cylinder block (1b) with at least one integrated coolant jacket is equipped,– a can be mounted on the upper crankcase half the oil pan (1c),– the at least one coolant jacket on the inlet side for the supply of oil via a first supply line (2) with a pump (3) to deliver from the oil pan (1c) and on the outlet side via a first return line (4) with the oil sump (1c) is at least can be connected, wherein the first return line (4) the discharge of the oil serves, with the at least a portion of the oil from the at least one coolant jacket of the cylinder block (1b) in the oil sump (1c) can be returned,– the pump (3) via a second supply line (5) provided with a in the crankcase main oil gallery (6), which serves the oil supply of bearings, which is connected the main oil gallery (6) via a second return line (7), which the driven by gravity draining oil is used, with the oil sump (1c) is at least can be connected, and– the at least one coolant jacket of the cylinder block (1b) via a discharge line (8) with the main oil gallery (6) is connectable,wherein– a control unit (10) is provided, which can be rotated about its longitudinal axis between the working positions of control cylinder, which has, in a first working position, the first supply line (2), in order to make the delivery of oil in the at least one coolant jacket of the cylinder block (1b) and the second supply line (5), around the pump (3) with the main oil gallery (6) and the bearings to be supplied with oil.