Abstract: A valve lifter of the roller type formed of a lightweight metal preferably aluminum or magnesium alloy. A roller formed of a wear resistant ceramic material is rotatably secured to the valve lifter. The wear/bearing surfaces of the valve lifter are impregnated with a solid film lubricant to provide reduced friction during operation.

Abstract: An ignition system is disclosed for regenerating a particulate trap (40-400 cells per lineal inch) used to filter the exhaust gas of an internal combustion engine, the particulate trap having an entrance face for receiving a gaseous flow therethrough.

Abstract: An apparatus for use with an internal combustion engine such as a diesel engine which emits hydrocarbons and particulates is disclosed. The apparatus is for use with an engine having a primary exhaust conduit, a flow divider defining parallel exhaust conduits connected to the primary exhaust conduit, and a pair of particulate traps, one each disposed in each of the parallel exhaust conduits and each of said traps having a frontal face exposed to the exhaust gas flow and one of the parallel exhaust conduits.

Abstract: A low stiffness elastomer mounting arrangement for a ceramic regenerator core comprising an elastomer cushion between a ceramic, circular regenerator core and a surrounding ring gear, portions of the elastomer being bonded to the interior surface of the ring gear and other portions of the elastomer being bonded to the outer periphery of the ceramic regenerator core, the location of the bonds between the elastomer and the ring gear being tangentially offset with respect to the location of the bonds between the elastomer and the regenerator core, adjacent bonds on the ring gear and on the periphery of the regenerator core being tangentially spaced one with respect to the other, the elastomer forming a load transmitting beam construction that is not bonded to either the ring gear or the core whereby driving forces are transmitted from the ring gear to the core while the elastomer compensates for differential expansion of the ceramic core and the ring gear thus avoiding radial stresses and compression loads on th

Abstract: A turbocompressor for use in transferring the energy of the exhaust gases for a liquid fuel combustion engine to the intake air for the engine including a rotor formed of ceramic material, a rotor with a rotor shaft extending through the hub of the rotor and an elastomeric driving connection between the shaft and the rotor hub whereby the elastomeric material is capable of cushioning the rotor, exerting on the rotor stresses that oppose centrifugal stresses induced in the ceramic and acting as a heat dam between the hub and the gas and air cells at a radially outward region of the rotor.

Abstract: Improvements in molded articles from sinterable particulate solids, improvements in method for making such articles, and novel sacrificial binders for use in making such articles are disclosed. The sacrificial binders used in this invention comprise block polymers having the structural formulaAB--AB--.eta. Awherein ".eta." is 0 or a positive integer, "A" is a linear or branched polymer that is glassy or crystalline at room temperature and has its softening point in the range of about 80.degree. C. to about 250.degree. C. and "B" is a polymer different from A that behaves as an elastomer at processing temperatures, a plasticizer which may be oil, wax, or oil and wax, and optionally other components.

Abstract: A process for fabricating cordierite-type magnesium aluminum silicate regenerator cores comprising the steps of preparing a glass powder and combining it with a block polymer binder, forming the binder and glass-ceramic mixture into a ribbed tape which is wound upon itself to produce a honeycomb structure and subjecting the honeycomb structure to firing cycles to achieve binder burn-off, controlled nucleation, densification and crystallization whereby the glass-ceramic structure is characterized by a relatively low thermal expansion during operation in an environment where temperature reversals occur, the glass ceramic structure thereby being more resistant to chemical attack due to corrosive gases in an engine exhaust gas environment and the strength of the structure thereby being increased.