Abstract: An electronic wireless communication system includes an electronic device with a plug-in circuit card. The plug-in circuit card includes a wireless radio circuit and at least one on-board coaxial connector coupled with the wireless radio circuit. An antenna card includes at least one antenna and at least one on-board coaxial connector. At least one of the on-board coaxial connectors on the antenna card is coupled with a corresponding antenna. Each on-board coaxial connector on the antenna card is also coupled with a mating on-board coaxial connector on the plug-in circuit card.

Abstract: A media block system for the input tray of a media processing device. A barricade is provided in the input tray and is movable between blocking and retracted positions. The barricade is moved by an arm and a lever connected to a feed roll shaft whereby rotation of the feed roll shaft moves the barricade.

Abstract: A laser beam position sensing arrangement using two similar sensors where, instead of the first sensor being aligned normal to the beam scan path, the angle which bisects the two sensors is aligned normal to the beam scan path. The average of times T1 and T2 at which the laser beam is incident the respective sensors is used for the horizontal or start of scan value, and the difference (T2−T1) is proportional to the vertical or process direction value. From the difference between the two determined times, the longitudinal beam position may be determined.

Abstract: A selective catalytic reduction emissions control system of a compression ignition engine is provided with enhanced ammonia feed control for improved emissions control performance. The reduction agent is provided in two doses, and the reactor is provided with two reacting beds. The second dose of reactant is provided between the first and second reacting beds.

Abstract: An engine particularly suited to single speed operation environments, such as stationary power generators. The engine includes a plurality of combustion cylinders operable under homogenous charge compression ignition, and at least one combustion cylinder operable on spark ignition concepts. The cylinder operable on spark ignition concepts can be convertible to operate under homogenous charge compression ignition. The engine is started using the cylinders operable under spark ignition concepts.

Abstract: An internal combustion engine, particularly suitable for use in a work machine, is provided with a combustion cylinder, a cylinder head at an end of the combustion cylinder and a primary piston reciprocally disposed within the combustion cylinder. The cylinder head includes a secondary cylinder and a secondary piston reciprocally disposed within the secondary cylinder. An actuator is coupled with the secondary piston for controlling the position of the secondary piston dependent upon the position of the primary piston. A communication port establishes fluid flow communication between the combustion cylinder and the secondary cylinder.

Abstract: A piston assembly, particularly suitable for use in a free piston internal combustion engine, is provided with a piston including at least one oil coolant passage therein. The plunger shaft is substantially rigidly attached to the piston and axially extends from the piston. The plunger shaft includes at least one oil supply passage fluidly connected with at least one oil coolant passage.

Abstract: A method and apparatus for the treatment of blow-by gas from a crankcase of an internal combustion engine. A particle and droplet filter removes at least some of any particles or droplets in the gaseous stream. The filtered gaseous stream is passed through a primary heat exchanger, and a catalyzed soot filter downstream of the primary heat exchanger. A secondary heat exchanger may be used to heat the gaseous stream with exhaust gas from the internal combustion engine. Blow-by gases are cleaned for subsequent discharge to the ambient environment, or for reintroduction to the fuel system of the engine.

Abstract: A star wheel manufacturing process, and a star wheel manufactured thereby, suitable for an ink jet printer. Metal is formed by chemical milling, subtractive etching or the like, into the desired star wheel configuration, including a plurality of radially extending projections having tips. At least a portion of each tip has an electropolished surface. A coating of fluorinated polymer or the like may be applied to at least a portion of the electrolpolished surface on each tip.

Abstract: A bypass venturi assembly for recirculating exhaust gas in an internal combustion engine, and particularly suitable for use in a vehicle, is provided with a housing having an outlet, a combustion air inlet and an exhaust gas inlet. A center piece is positioned within the housing and in communication with the combustion air inlet. The center piece defines a combustion air bypass section therein. An annular venturi nozzle positioned between the housing and the center piece is in communication with the combustion air inlet and defines a combustion air venturi section. The venturi nozzle is in communication with the exhaust gas inlet and defines an exhaust gas venturi section. A combustion air bypass valve is positioned in association with the combustion air bypass section. An exhaust gas valve is positioned in association with the exhaust gas inlet. The venturi nozzle is separate from the housing and allows a nozzle with a particular configuration to be utilized, depending upon the application.

Abstract: A turbocharger for an internal combustion engine, is provided with a turbine including a rotatable turbine shaft, a turbine wheel carried by the turbine shaft, and a drive gear carried by the turbine shaft. A first compressor includes a rotatable first compressor shaft, a first compressor wheel carried by the first compressor shaft, and a first driven gear carried by the first compressor shaft. The first driven gear is operatively engaged with and driven by the drive gear. The turbocharger has a compact arrangement, and allows for optimization of compressor wheel operating speeds, including in a turbocharger having multiple compression stages.

Abstract: A volume reducer for a hydraulic system, particularly useful for low pressure hydraulic systems such as used in engine compression braking systems. The hydraulic system has an actuator and a pressurizer, with a hydraulic line interconnecting the actuator and the pressurizer. A substantially straight section of the hydraulic line is provided, and a slidable body is provided in the substantially straight section. The body slides in the hydraulic line in response to pressure changes in the hydraulic line, and occupies hydraulic line volume, to stiffen the hydraulic system and reduce system sluggishness.

Abstract: An internal combustion engine, particularly suitable for use in a work machine, is provided with a combustion air supply and an exhaust manifold. A bypass venturi assembly includes a housing having an outlet, a combustion air inlet and an exhaust gas inlet. A center piece is positioned within the housing and is in communication with the combustion air inlet. The center piece defines a combustion air bypass section therein. A combustion air bypass valve is positioned in association with the combustion air bypass section. An exhaust gas valve is positioned in association with the exhaust gas inlet. A single shaft is coupled with and carries each of the combustion air bypass valve and the exhaust gas valve.

Abstract: A variable geometry nozzle suitable for a radial turbine in a turbocharger for an internal combustion engine. The turbine inlet, turbine outlet or both include a vane assembly having a housing and an adjustable cartridge movable in the housing. Each cartridge has vanes having a plurality of vane sections. Each vane section provides a vane geometry different than the vane geometries of the other vane sections.

Abstract: An internal combustion engine, particularly suitable for use in a work machine, is provided with an exhaust manifold, a turbocharger, and a bypass venturi assembly. The turbocharger includes a turbine and a compressor, with the turbine having a variable geometry inlet coupled with the exhaust manifold, and the compressor having an outlet. The bypass venturi assembly includes a housing having an outlet, a combustion air inlet and an exhaust gas inlet. The combustion air inlet is coupled with the compressor outlet. The exhaust gas inlet is coupled with the exhaust manifold. A center piece is positioned within the housing and is in communication with the combustion air inlet. The center piece defines a combustion air bypass section therein. A combustion air bypass valve is positioned in association with the combustion air bypass section. The exhaust gas valve is positioned in association with the exhaust gas inlet.

Abstract: An engine cooling system for a work machine or the like having an engine with a turbocharger and an aftercooler. A separate circuit aftercooler cooling circuit is provided. A radiator assembly includes a first group of radiator cores and a second group of radiator cores. Some coolant cooled in the first group of radiator cores is passed from the radiator assembly to an engine cooling circuit. Another portion of coolant cooled in the first group of radiator cores is passed to the second group of radiator cores, for additional cooling thereof. From the second group of radiator cores, coolant is passed to the separate circuit aftercooler cooling circuit.

Abstract: An internal combustion engine, particularly suitable for use in a motor vehicle, is provided with a combustion air supply, an exhaust manifold, and a bypass venturi assembly. The bypass venturi assembly includes a housing having an outlet, a combustion air inlet connected and in communication with the combustion air supply, and an exhaust gas inlet connected and in communication with the exhaust manifold. A venturi nozzle is positioned in communication with the combustion air inlet. The venturi nozzle defines a bypass venturi section therein. The venturi nozzle and the housing define an exhaust gas venturi section therebetween terminating at an induction area. The venturi nozzle has a plurality of through holes in communication with a downstream portion of the exhaust gas venturi section. The exhaust gas inlet terminates at the induction area. A bypass valve is positioned to open and close the bypass venturi section.

Abstract: An electrical preheater for a turbine inlet of a turbocharger for an internal combustion engine. An electric motor/generator is drivingly coupled to the turbocharger, and electrically connected to a storage device. The electrical preheater is powered by the storage device to heat a stream of exhaust gases entering the turbocharger turbine from the engine exhaust manifold. The preheater provides an additional control of the turbocharger performance.

Abstract: An integrated cooling system for a turbocharger, suitable for an internal combustion engine. A cooling air shroud surrounds a portion of an interstage duct in a two-stage turbocharger, and may also surround a part of the outlet from the turbocharger. A fan on a turbocharger shaft is driven by the turbocharger turbine to draw air into the cooling air shroud, and pass the cooling air in heat exchange relationship with compressed air flowing through the turbocharger. The fan may also be used to precompress air compressed in the turbocharger.

Abstract: A method of controlling detonation in an internal combustion engine is provided with the steps of: combusting a fuel and air mixture within a combustion cylinder; sensing a plurality of pressures at discrete points in time within the combustion cylinder; determining a pressure profile of the plurality of pressures; detecting detonation within the combustion cylinder; and acting upon the detonation, dependent upon where said detonation occurs on the pressure profile.