Abstract: The design and construction of past exhaust port liners with heat insulation capabilities have had to become more simple in order to reduce costs. However, less costly exhaust port liners may have inferior heat insulation capabilities. The present invention overcomes this and other problems with a means for encapsulating an insulating layer of material. The encapsulating means is composed of fiberglass cloth with the ability to withstand high temperatures. A blanket is formed when the fiberglass cloth encapsulates the insulating layer. The blanket is stitched in a quilted pattern to form a plurality of individual pockets. The blanket is wrapped around a ceramic body of a port liner. The quilted stitching pattern, due to separating the insulating layer into the plurality of individual pockets, protects the pockets individually. If damage should occur to one of the plurality of pockets, the insulating layer would remain intact within the remaining plurality of pockets.

Abstract: A cylinder barrel includes a casting having a plurality of ceramic bore liners cast in situ within the casting. The cylinder barrel is made by positioning the ceramic bore liners at predetermined locations within a casting mold and pouring a molten ferrous metal into the mold so as to envelope the bore liners.

Abstract: A composition and process are disclosed for constructing a diesel engine element, such as for example, a valve guide which will withstand the friction of various tribological locations in a diesel engine when operating the engine at elevated temperatures and/or on alternative fuels. The composition is one of a glass,glass-ceramic, and mixtures thereof matrix having graphite particles. In the process, a unitary element is formed from the mixture and thereafter is sintered for a time and temperature sufficient to obtain a preselected density.

Abstract: A composition and process are disclosed for constructing a diesel engine element, such as for example, a valve guide which will withstand the friction of various tribological locations in a diesel engine when operating the engine at elevated temperatures and/or on alternative fuels. The composition is one of a glass,glass-ceramic, and mixtures thereof matrix having graphite particles. In the process, a unitary element is formed from the mixture and thereafter is sintered for a time and temperature sufficient to obtain a preselected density.

Abstract: The design and construction of past port liners with heat insulation capabilities have had to become more simple in order to reduce costs. However, less costly exhaust port liners may have inferior heat insulation capabilities. Additionally, port liners cast into a cylinder head of an internal combustion diesel engine must endure the stresses associated with the high casting temperatures of cast iron. The present invention overcomes these and other problems by utilizing a ceramic port liner containing a low temperature softening phase. The ceramic port liner is surrounded by a blanket formed when a fiberglass cloth encapsulates an insulating layer of material. The ceramic port liner and surrounding blanket are cast within a cylinder head. During the casting process, the ceramic port liner remains in a softened state. As the casting cools, the ceramic port liner returns to a regular solid state at a progressively sufficient thermal rate to protect it from damage.

Abstract: A manifold of an engine has a liner, a housing and an insulating element covering and extending about the liner between the liner and the housing. The external surface of the housing is free of insulating elements. The insulating element is quilted and has ceramic fiber encased within fiberglass.

Abstract: An injection molding ring valve assembly, having a concentrically disposed axially translatable center valve body member which when in a first axial position allows mass flow through the valve assembly and a separate front valve seat member in the shape of a torus in cooperation with a check ring, thereby providing smooth and unrestricted annular flow through the valve assembly during the priming process of the injection sequence. The check ring, formed from a cylindrical outer ring disposed about the center valve body member, sealingly engages an outer valve seat portion of the torus or front valve seat member. The torus further includes a center hub portion and at least one radially projecting web portion connecting the hub portion and the annular outer portion, resulting in one or more substantially axial semi-annular openings for the smooth and unrestricted passage of molding material.

Abstract: A daytime running light system employs level sensing comparators to effect reduced illuminating the high beam filaments of headlamps of a vehicle and short circuit protection to the circuit as well as to a high beam indicator circuit which only operates when the high beam filaments operate at full intensity.