FEDERAL-MOGUL POWERTRAIN LLC

An improved atomized powder metal material containing an increased amount of free graphite after heat treatment and/or sintering is provided. The powder metal material is typically a ferrous alloy and includes carbon in an amount of 1.0 wt. % to 6.5 wt. % and silicon in an amount of 0.1 wt. % to 6.0 wt. %, based on the total weight of the powder metal material. The powder metal material can also include various other alloying elements, for example at least one of nickel (Ni), cobalt (Co), copper (Cu), tin (Sn), aluminum (Al), sulfur (S), phosphorous (P), boron (B), nitrogen (N), chromium (Cr), manganese (Mn), molybdenum (Mo), vanadium (V), niobium (Nb), tungsten (W), titanium (Ti), tantalum (Ta) zirconium (Zr), zinc (Zn), strontium (Sr), calcium (Ca), barium (Ba) magnesium (Mg), lithium (Li), sodium (Na), and potassium (K).

A coated piston ring for a piston is provided. The piston ring includes a running surface, a flank surface, and a transition surface therebetween. The transition surface curves or extends at an angle between the running surface and the flank surface. A running layer is disposed over the running surface and over at least a portion of the transition surface. A flank layer is disposed over the flank surface and over at least a portion of the transition surface. The running layer is applied by physical vapor deposition, and the running layer is applied by galvanic deposition. The running layer is formed of chromium nitride, and the flank layer is formed of chromium. A portion of the flank layer overlaps and is disposed outward of a portion of the running layer. During operation of the piston, the overlapping portion is spaced from both the piston and the cylinder.

An improved atomized powder metal material containing an increased amount of free graphite after heat treatment and/or sintering is provided. The powder metal material is typically a ferrous alloy and includes carbon in an amount of 1.0 wt. % to 6.5 wt. % and silicon in an amount of 0.1 wt. % to 6.0 wt. %, based on the total weight of the powder metal material. The powder metal material can also include various other alloying elements, for example at least one of nickel (Ni), cobalt (Co), copper (Cu), tin (Sn), aluminum (Al), sulfur (S), phosphorous (P), boron (B), nitrogen (N), chromium (Cr), manganese (Mn), molybdenum (Mo), vanadium (V), niobium (Nb), tungsten (W), titanium (Ti), tantalum (Ta) zirconium (Zr), zinc (Zn), strontium (Sr), calcium (Ca), barium (Ba) magnesium (Mg), lithium (Li), sodium (Na), and potassium (K).

A PTFE rotary shaft seal assembly includes an annular seal case mountable within a bore of a housing and a wafer fabricated of PTFE. An outer region of the wafer is captured by the seal case and in inner region extends to a central opening of the wafer. The wafer includes coined fluid pumping impressions formed on a first side of the wafer and coined flexing impressions formed on an opposite second side of the wafer. The wafer further includes a coined static band portion encircling the central opening and being free of fluid pumping impressions. A method of making such a wager and seal assembly is also provided.

An electromagnetic interference shielding, self-wrapping textile sleeve for providing EMI protection about an elongate member includes an outer wall of interlaced wire to provide protection low frequency EMI frequency as low or lower than 100 MHz. The outer wall has opposite outer edges extending lengthwise between opposite outer ends. The sleeve includes an inner wall of interlaced yarns fixed to the outer wall to provide protection against EMI frequency as high as or higher than 1 GHz. The inner wall has opposite inner edges extending lengthwise between opposite inner ends. The interlaced yarns include heat-set yarn that impart a bias to cause the inner and outer edges to self-wrap into overlapping relation with one another and yarn having an outermost layer of conductive material bonded thereto.

A sleeve has a textile wall having a circumferentially continuous outer surface extending along a longitudinal axis between opposite open ends. The textile wall includes heat-resistant multifilament yarn and an impervious coating extending about the outer surface of the textile wall to allow the sleeve to withstand heat up to 1000° C. or greater for a continuous duration of 20 minutes or more. The impervious coating includes one of a silicone ingredient, a silicone-based ingredient, a liquid silicone rubber ingredient, a polytetrafluoroethylene ingredient, or a polyurethane ingredient, and includes at least one of carbon black pigmentation and iron oxide pigmentation impregnated therein.

A flexible multilayer battery pack insulator for an electric vehicle has a first layer of a coating material having opposite outer and inner sides, a second layer of compressible material having opposite outer and inner sides, and an intermediate fabric layer sandwiched between the inner side of the first layer and the inner side of the second layer, wherein the second layer has a relaxed thickness extending from the inner side of the second layer to the outer side of the second layer, wherein second layer can compress up to 50% of the relaxed thickness and recover to the relaxed thickness.

A textile sleeve assembly including a tubular textile wall with an outer surface and an inner surface bounding a cavity extending a longitudinal central axis for routing and protecting an elongate member therein. A textile fabric bonded to the outer surface of the tubular textile wall via a plurality of weld joints. The textile fabric having a pair of attachment features for attachment to spaced apart attachment members on a vehicle body and a closure member of a vehicle.

A sliding element, such as a bearing, and a method of manufacturing the sliding element, is provided. The sliding element is formed of an aluminum alloy material which includes zinc in an amount of 5 wt. % to 83 wt. %. The sliding element may also include silicon and/or magnesium. The sliding element is typically formed by casting, heat treating at a temperature of 400° C. to 577° C., and cooling at a rate of less than 50° C. per hour to a temperature ranging from 400° C. to 200° C. The aluminum alloy material is then heat treated at a temperature of 100° to 275° C. for at least 5 hours to form a soft phase consisting essentially of the zinc. The second heat treatment, or possibly both heat treatments, may not be required when the aluminum alloy material includes the magnesium.

A flexible multilayer battery pack insulator for an electric vehicle includes a first outer film layer having opposite outer and inner first outer film layer sides, a second outer film layer having opposite outer and inner second outer film layer sides, and an intermediate fabric layer sandwiched between the inner side of the first outer film layer and the inner side of the second outer film layer and in contact with the inner side of the first outer film layer and in contact with the inner side of the second outer film layer.