Abstract: A cylinder bore liner insert configured to be cast in an internal combustion engine block includes an additive manufactured liner wall formed during an additive manufacturing process and having an inner surface, an outer surface, and an upper surface configured to be operably associated with a cylinder head, wherein the inner surface at least partially defines a cylinder bore configured to receive a piston therein. A liner water jacket is defined internally within the additive manufactured liner wall during the additive manufacturing process. The liner water jacket at least partially surrounds the cylinder bore to provide cooling thereto via a flow of coolant within the liner water jacket. A plurality of coolant ports are formed in the upper surface and configured to enable flow of coolant between the liner water jacket and the cylinder head.

Abstract: A system may include a motor, a control module, and a sensor. The motor may be adapted to drivingly engage a drive mechanism for moving a door between an open position and a closed position. The control module may be in communication with the motor and operable to control operation of the motor. The sensor may be in communication with the control module. The sensor may be operable to detect a substance within a space and send a first signal to the control module indicative of a predetermined level of the substance within the space. The control module may cause the motor to drive the drive mechanism in a direction that causes the door to move from the closed position to the open position in response to receiving the first signal from the first sensor.