Abstract: In one example, a valve seat insert for a cylinder head seat pocket of an internal combustion engine is described. The valve seat insert comprises an annular body comprising a first material and including an inner surface, an outer surface opposite the inner surface, a front surface adjoining the inner and outer surfaces, and a back surface opposite the front surface adjoining the inner and outer surfaces. The front surface includes an inner circumference greater than an inner circumference of the back surface. The back surface includes a first recession inlaid with a sacrificial anode comprising a second material different from the first material and having an exposed surface. In this manner, it may be possible to substantially prevent corrosion of the cylinder head seat pocket.

Abstract: A multicylinder internal combustion engine includes a cylinder block, a cylinder head and a gasket mounted between the cylinder block and cylinder head. A coolant passage extends through the cylinder block and laterally along an uppermost portion of a shared cylinder wall extending between adjacent engine cylinders. The laterally extending cooling passage is defined at least in part by a passage formed in the cylinder head gasket.

Abstract: In one example, a valve seat insert for a cylinder head seat pocket of an internal combustion engine is described. The valve seat insert comprises an annular body comprising a first material and including an inner surface, an outer surface opposite the inner surface, a front surface adjoining the inner and outer surfaces, and a back surface opposite the front surface adjoining the inner and outer surfaces. The front surface includes an inner circumference greater than an inner circumference of the back surface. The back surface includes a first recession inlaid with a sacrificial anode comprising a second material different from the first material and having an exposed surface. In this manner, it may be possible to substantially prevent corrosion of the cylinder head seat pocket. Further, various approaches for reducing corrosion of the cylinder head seat pocket are described.

Abstract: A mulitcylinder internal combustion engine includes a cylinder block, a cylinder head and a gasket mounted between the cylinder block and cylinder head. A coolant passage extends through the cylinder block and laterally along an uppermost portion of a shared cylinder wall extending between adjacent engine cylinders. The laterally extending cooling passage is defined at least in part by a passage formed in the cylinder head gasket.

Abstract: An acoustic suppression arrangement 7 for a component undergoing induced vibration is provided. The arrangement 7 includes a component body 8 having an interior surface 9 and an exterior surface 11 having a panel portion 20. A containment plate 24 is provided having a spaced relationship from the panel portion. A first projector 25 is connected to the component body panel portion 20 and extends toward the containment plate 24. A second projector 30 is connected to the containment plate. A connector system 39, 45 is provided to connect the containment plate 24 to the component body 8 while placing the first and second projectors 25, 30 in an interference fit. Vibratory energy of the component body 8 is dissipated by frictional contact between the projectors 25, 30.