Patent ID: 9051870
Filing Date: 2015-06-09
Classification: F01P

Abstract:
1. An internal combustion engine comprising: a cylinder head having an integrated coolant jacket with a first supply opening at an inlet side for the feeding of coolant and a first discharge opening at an outlet side for the discharge of the coolant; a cylinder block having an integrated coolant jacket with a second supply opening at an inlet side for the feeding of the coolant and a second discharge opening at an outlet side for the discharge of the coolant; a coolant circuit connecting the discharge openings to the supply openings via a recirculation line and a heat exchanger; a pump coupled to the coolant circuit, receiving the coolant from the recirculation line at a pump inlet and delivering the coolant to a pump outlet; and a control unit having an inlet connected to the pump outlet, a first outlet connected to the first supply opening, a second outlet connected to the second supply opening, and a single setting element, wherein the setting element has a first working position that opens up the first outlet and blocks the second outlet such that the coolant circuit is activated through the cylinder head and is deactivated through the cylinder block, and wherein the setting element has a second working position that opens up both the first outlet and the second outlet such that the coolant circuit is activated through both the cylinder head and the cylinder block, wherein the setting element further has a rest position that blocks both outlets of the control unit, such that the coolant circuit is deactivated both through the cylinder head and the cylinder block.