Abstract: A gas turbine engine including a core having a compressor section fluidly connected to a combustor via a primary flowpath and a turbine section connected to the combustor via the core flow path. An assembly is disposed within the gas turbine engine and includes a first part connected to a second part via a radial stack joint. The first part includes a radially inward facing surface contacting a corresponding radially outward facing surface of the second part. A fastener protrudes through the first part and the second part and is configured to maintain the relative positions of the first part and the second part. A channel is disposed on at least one of the radially inward facing surfaces and is positioned between the fastener and a circumferential edge of the first part. The channel is connected to at least one cooling air source.

Abstract: A method of lubricating a surface coated with a diamond-like carbon film or coating which comprises supplying to said surface a lubricating oil composition comprising an oil of lubricating viscosity and an effective friction reducing amount of an oil soluble organo-molybdenum compound.

Abstract: A portable, readily storable, exercise system has a workout station which includes a rigid backing member having a top surface, a bottom surface, and opposed ends. A plurality of handle sections, each having at least one gripping portion, are configured to be attached at the opposed ends of the rigid backing member, and a cushion is configured to be attached to the top surface of the rigid backing member and disposed between the handle sections. The exercise system may also include resistance bands that may connect to the workout station to supplement various exercise techniques. Further, a free weight bar may be used for exercises and at times it may be used in conjunction with the resistance bands. The exercise system is a compact design and may partially disassemble thereby enabling users to have convenient portability and storage.

Abstract: A method of lubricating a surface coated with a diamond-like carbon film or coating which comprises supplying to said surface a lubricating oil composition comprising an oil of lubricating viscosity and an effective friction reducing amount of an oil soluble organo-molybdenum compound.

Abstract: A lubricant composition comprising a major amount of an oil of lubricating viscosity and a minor amount of: