Ford Global Technologies, LLC (Dearborn, MI)

An engine cylinder block includes a control valve and stratified layers that form a network internal to the block. The network includes a main feed line for fluid communication with the control valve, and branched and winding arterial channels that extend beyond the feed line that have diameters that taper to define nozzles that spray coolant on sides of pistons carried inside the block of the cylinder.

To function properly and efficiently, an engine needs to be cooled. The most common cooling systems involve the the delivery of oil to different parts of the engine, like the pistons. Yet typically, piston oil delivery systems are passivesystems that respond to changes of pressure inside the components, but that are not able to adjust to the different requirements of the engine.

In at least one embodiment, an engine block is disclosed. The valve controlling the engine is located in the cylinder block. The control valve is included in the cylinder block. The network comprises a main feed line that is in fluid communication with a control valves as well as winding and branched arterial channels. The arterial channels can be extended beyond the main feed line and have dimensions that taper out to form nozzles designed to spray coolant along the sides of the cylinders that are carried inside the cylinder block. The network could be located within an intake side of the block of the cylinder. The feed line may run radially across the block of the cylinder. The further away the control valve increases and the diameter of the main feeder line can increase. The control valve may be responsive to speed information. These are the exhaust and intake sides for the pistons. The primary feed line can be designed to receive coolant from the main oil gallery. A coolant intake port may be integrated into the control valve. The main bearing saddle could be defined by stratified layers. At least one channel can extend towards the main bearing saddle.

In an alternative embodiment an engine is described. An engine could comprise an cylinder block constructed of layer-on?layer material that defines an internal intake port as well as an internal main feed line. The internal network of branching arterial channels runs across the main line and the pistons. The channels are terminated by nozzles designed to spray coolant through their channels. There could be a range of control valves that are dedicated to each channel. The control valves are sensitive to vehicle speed data. The network is disposed on the intake side of the cylinder block. The feed line may be radially crossed by the cylinderblock. The main feed line’s diameter could be different.

An engine system is also disclosed in an alternative embodiment. The engine system comprises a piston. The engine system is further comprised of a cylinder block of stratified layers defining internal coolant channels that taper to definenozzles configured to spray coolant from the channels that surround the piston. The engine system also includes an control valve that is in fluid communication with the network programmed to release a predefined quantity of coolant into the network in response to signals that indicate of a state of the engine system. The network might comprise an intake line for coolant and an main feedline, in which the channels run from the mail feed. The feed line could traverse the cylinder block. On the intake side of a cylinder block, the network may be put. The stratified layers may be made of steel.

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