Abstract: Systems are provided for cooling a cylinder block via bore bridge cooling passages. In one example, a cylinder block with a bore bridge positioned between a first cylinder and a second cylinder, the cylinder block also including a coolant jacket at least partially surrounding the first cylinder and the second cylinder, has at least one cooling passage positioned within the bore bridge. An inlet of the at least one cooling passage has a larger area than an outlet of the at least one cooling passage and at least a portion of the at least one cooling passage has a non-cylindrical geometry formed by a lost core.

Abstract: Systems are provided for cooling a cylinder block via bore bridge cooling passages. In one example, a cylinder block with a bore bridge positioned between a first cylinder and a second cylinder, the cylinder block also including a coolant jacket at least partially surrounding the first cylinder and the second cylinder, has at least one cooling passage positioned within the bore bridge. An inlet of the at least one cooling passage has a larger area than an outlet of the at least one cooling passage and at least a portion of the at least one cooling passage has a non-cylindrical geometry formed by a lost core.

Abstract: Methods and systems are provided for a water jacket diverter. In one example, the water jacket diverter has a continuous upper rail with a profile including curved and linear portions where the profile of the upper rail is optimized to moderate coolant flow through the water jacket. The water jacket diverter further includes at least one protrusion extending outwards from an outer face of the diverter, the at least one protrusion positioned in front of a coolant inlet.

Abstract: Methods and systems are provided for a water jacket diverter. In one example, the water jacket diverter has a continuous upper rail with a profile including curved and linear portions where the profile of the upper rail is optimized to moderate coolant flow through the water jacket. The water jacket diverter further includes at least one protrusion extending outwards from an outer face of the diverter, the at least one protrusion positioned in front of a coolant inlet.

Abstract: Systems are provided for cooling a cylinder block via bore bridge cooling passages. In one example, a system may include a cylinder block with a first cylinder and a second cylinder adjacent to the first cylinder and a bore bridge positioned between the first cylinder and the second cylinder, the cylinder block further including a coolant jacket at least partially surrounding the first cylinder and the second cylinder. The system may further include a cooling passage positioned within the bore bridge, the cooling passage including an inlet fluidly coupled to the coolant jacket and an outlet positioned at a deck face of the cylinder block, the cooling passage curving from the inlet to the outlet with a curvature greater than zero.

Abstract: Methods and systems are provided for a water jacket diverter. In one example, a water jacket diverter for a cylinder block is provided that includes a masking wall arranged above a rail and including a tuning section having a reduced thickness when compared to a remainder of the masking wall. The water jacket diverter also includes a tuning ledge adjacent to the masking wall and extending outward from the masking wall with regard to a cylinder bore axis.

Abstract: Methods and systems are provided for a water jacket diverter. In one example, a water jacket diverter for a cylinder block is provided that includes a masking wall arranged above a rail and including a tuning section having a reduced thickness when compared to a remainder of the masking wall. The water jacket diverter also includes a tuning ledge adjacent to the masking wall and extending outward from the masking wall with regard to a cylinder bore axis.

Abstract: Methods and systems are provided for a ducted plenum of a positive crankcase ventilation system for an engine. In one example, the ducted plenum may include a plurality of ducts coupled to a central chamber and an oil separator and valve arranged downstream of the central chamber. The ducted plenum may vent gases from an engine crankcase and deliver the vented gases to the engine intake system.

Abstract: A system for lubricating an engine is disclosed. In one example, the system includes an oil purging passage in fluidic communication with an oil gallery within an engine block. The system may provide for reduced engine degradation related to debris that may be found in engine oil.

Abstract: Methods and systems are provided for a ducted plenum of a positive crankcase ventilation system for an engine. In one example, the ducted plenum may include a plurality of ducts coupled to a central chamber and an oil separator and valve arranged downstream of the central chamber. The ducted plenum may vent gases from an engine crankcase and deliver the vented gases to the engine intake system.

Abstract: A system for lubricating an engine is disclosed. In one example, the system includes an oil purging passage in fluidic communication with an oil gallery within an engine block. The system may provide for reduced engine degradation related to debris that may be found in engine oil.

Abstract: A system for lubricating an engine is disclosed. In one example, the system includes an oil purging passage in fluidic communication with an oil gallery within an engine block. The system may provide for reduced engine degradation related to debris that may be found in engine oil.

Abstract: A system for lubricating an engine is disclosed. In one example, the system includes an oil purging passage in fluidic communication with an oil gallery within an engine block. The system may provide for reduced engine degradation related to debris that may be found in engine oil.