Ford Global Technolgoies, LLC

Daryl Self

Antony Schepak

Mathew Hintzen

Phil Cierpial

Paul Shoemaker

Justin Craft

Baran Celikten

Christopher Kelly Palazzolo

Theodore Beyer

John Riegger

Jody Michael Slike

Paul Thomas Reinhart

Jonathan Burns

Bryan McKeough

Mohammed Yusuf Ali

Dave Frayne

Prasad Kamat

Jamie Mink

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.

Bore bridge cooling channels

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.

A method of forming an engine is provided. A liner is cast with an outer surface with a first texture extending circumferentially from a first end to a second end of the liner. A section of the outer surface of the liner is machined to provide a second texture extending circumferentially about the liner and spaced apart from the first end, wherein the second texture has a lower specific surface area than the first texture. An engine and a cylinder liner for the engine are provided. The liner has first and second ends with an outer surface extending therebetween. An outer surface of the liner has axial sections defining different textures to form material interfaces with the block with different thermal conductivities thereacross.

Cylinder liner for an internal combustion engine and method of forming

An engine includes a cylinder block having first and second passages intersecting a block face on opposed sides of a bore bridge defining a bore bridge cooling passage. A cylinder head has third and fourth passages intersecting a head face. The first and fourth passages are opposed from one another. A gasket is placed between the block and the head. The gasket adapted to fluidly connect the first and fourth passages via the bore bridge cooling passage, and cover the second passage.

Bore bridge and cylinder cooling

A bearing for an automotive engine includes a base having a first bearing segment formed therein, and a bearing cap removably mounted to the base, with the bearing cap including fastener towers in contact with the base. A second bearing segment extends between the fastener towers. A number of non-contact stiffening ribs extend parallel to the fastener towers. The stiffening ribs are attached to outboard portions of the fastener towers. The stiffening ribs cause the bearing cap to avoid excessive flexing and distortion, while at the same time avoiding fretting corrosion which would occur were the clamp loads of the cap to the base be reduced by materially increasing the size of the fastener towers.

Automotive engine bearing

An oil level indicating system for an internal combustion engine includes an indicator passageway extending through a cylinder block, cylinder head and up through a ported boss extending through an upper engine cover. The ported boss is sealingly engaged with the cylinder head of the engine so as to prevent fugitive oil from entering indicator passageway, thereby preventing erroneous oil level readings.

Oil level indicating system for internal combustion engine

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Trenton, MI, United States of America

Daryl Self