Abstract: A engine block cover plate is described having a depression shaped to guide coolant flow around a bend in a coolant circuit, the plate further including a plurality of oil ports. One example method of operation may include guiding a coolant flow around a bend in a cooling circuit within an engine block via the cover plate, the cover plate having coolant and oil ports positioned therein, and adjusting a valve positioned on the cover plate to control a flow of oil through the oil port in response to an engine component temperature. In this way, flow losses may be decreased while enabling improved oil flow control with reduced system complexity.

Abstract: Various bulkhead inserts having a cracked cap are provided. In one example, a cylinder block includes a plurality of cylinder bores, a crankcase disposed below the cylinder block in a vertical direction, and a plurality of inserts, where each adjacent pair of inserts of the plurality of inserts partitions each cylinder bore of the plurality of cylinder bores. Each insert of the plurality of inserts has an upper portion and a cap disposed below the upper portion, the cap cracked from the upper portion and rejoined to the upper portion by one or more fastening devices, the upper having one or more upper bosses, each upper boss having a surface with extruded, circumferentially-extending serrations.

Abstract: Various bulkhead inserts having a cracked cap are provided. In one example, a cylinder block includes a plurality of cylinder bores, a crankcase disposed below the cylinder block in a vertical direction, and a plurality of inserts, where each adjacent pair of inserts of the plurality of inserts partitions each cylinder bore of the plurality of cylinder bores. Each insert of the plurality of inserts has an upper portion and a cap disposed below the upper portion, the cap cracked from the upper portion and rejoined to the upper portion by one or more fastening devices, the upper having one or more upper bosses, each upper boss having a surface with extruded, circumferentially-extending serrations.

Abstract: A engine block cover plate is described having a depression shaped to guide coolant flow around a bend in a coolant circuit, the plate further including a plurality of oil ports. One example method of operation may include guiding a coolant flow around a bend in a cooling circuit within an engine block via the cover plate, the cover plate having coolant and oil ports positioned therein, and adjusting a valve positioned on the cover plate to control a flow of oil through the oil port in response to an engine component temperature. In this way, flow losses may be decreased while enabling improved oil flow control with reduced system complexity.

Abstract: A system for controlling a flow of pressurized oil in an internal combustion engine includes a cylinder head having a first internal passage arranged to receive a supply of pressurized oil from the engine, wherein the first internal passage includes a flow restrictor; and a second internal passage connecting a section of the first internal passage upstream of the restrictor with a port formed in an external surface of the cylinder head to thereby define a pressurized oil outlet. The system further includes an oil flow control module including a pressurized oil inlet defined in a first surface thereof, and a spool valve operative to direct unrestricted oil flowing through the second passage within the cylinder head into one of a plurality of fluid lines operatively connected to the cam phaser unit, whereupon the spool valve is used to variably advance or retard engine cam timing.

Abstract: A system for controlling a flow of pressurized oil in an internal combustion engine includes a cylinder head having a generally-flat external surface featuring a pressurized oil outlet and a pressurized oil inlet; and an oil flow control module including a generally-flat mating surface secured against the first surface of the cylinder head such that a first passage in the module places the outlet of the cylinder head in fluid communication with the inlet of the cylinder head. While the module's first passage minimally includes an oil restrictor, preferably, in a downstream portion thereof, the module preferably further includes a screen filter, and a spool valve operative to direct unrestricted oil flowing through the first passage into one of a plurality of fluid lines operatively connected to the cam phaser unit, whereupon the spool valve is used to variably advance or retard engine cam timing.