Abstract: A method of operating an articulatable surgical instrument. The method includes providing a rotary drive motion to a rotary drive member of a surgical end effector and converting the rotary drive motion to an upper axial motion and a lower axial motion at locations that are distal to the articulation joint. The method further includes applying the upper axial motion to an upper portion of a firing member and applying the lower axial motion to a lower portion of the firing member such that the upper axial motion and lower axial motion drives the firing member distally through the surgical end effector from a starting position to an ending position.

Abstract: A method of controlling cooling flow through a coolant system of an internal combustion engine having an electronic control module, a cooling throttle, an EGR cooler, and an interstage cooler is provided. A pressure within a coolant system is determined. A temperature within the coolant system is determined. A temperature of exhaust gas exiting an EGR cooler is determined. A temperature of intake air exiting an interstage cooler is determined. A position of a cooling throttle within the coolant system is adjusted based upon at least one of the determined pressure within the coolant system, temperature within the coolant system, temperature of exhaust gas exiting the EGR cooler, and temperature of intake air exiting an interstage cooler being above respective predefined thresholds to adjust fluid flow within the coolant system.

Abstract: A method of controlling cooling flow through a coolant system of an internal combustion engine having an electronic control module, a cooling throttle, an EGR cooler, and an interstage cooler is provided. A pressure within a coolant system is determined. A temperature within the coolant system is determined. A temperature of exhaust gas exiting an EGR cooler is determined. A temperature of intake air exiting an interstage cooler is determined. A position of a cooling throttle within the coolant system is adjusted based upon at least one of the determined pressure within the coolant system, temperature within the coolant system, temperature of exhaust gas exiting the EGR cooler, and temperature of intake air exiting an interstage cooler being above respective predefined thresholds to adjust fluid flow within the coolant system.

Abstract: An engine braking system includes a turbocharger having a turbine and a compressor. An exhaust manifold includes a first pipe for channeling a first portion of the engine exhaust and a second pipe for channeling a second portion of the engine exhaust. The first and second pipes are connected to an inlet of the turbine. A cross pipe, as part of an exhaust gas recirculation (EGR) conduit, is open between the first and second pipes and at one end to the remaining portion of the EGR conduit. A valve can be arranged within the cross pipe and ca be operable in a first mode of operation to block flow between the first and second pipes and allow flow between the first pipe and the remaining portion of the EGR conduit and to allow flow between the first and second pipes and the inlet of the turbine. The valve is operable in a second mode of operation to allow flow between the first and second pipes, and to reduce or block flow between the second pipe and the turbine inlet.

Abstract: A device and method for catalytic reduction of NOx in gaseous products of a combustion process before entry into the atmosphere. The gaseous and particulate products of a combustion process flow radially through a radial flow particulate filter element (24) that is effective to trap particulate matter, and are then directed axially through a collector (26). An injector (30) introduces a reductant into an axial end of the collector for entrainment with axial flow through the collector in a direction away from the injector. Flow leaving the collector is directed through an SCR catalyst (40) where catalytic reduction of NOx occurs.

Abstract: A diesel engine, having a two stage turbine for driving a two stage intake air compressor, includes a second stage bypass path arranged around the second stage turbine. The second stage bypass path includes a second stage control valve to open or close the second stage bypass path. Also, a first stage bypass path around the first stage turbine can be used along with the second stage bypass path. An engine control is configured to open or close the first and/or the second stage bypass paths during an operator command for vehicle acceleration. When the engine includes a DOC and a DPF, the engine control can open the second stage bypass path in order to increase passive regeneration of the DPF.

Abstract: A heating system for an engine breather system includes a housing configured to contain a heating fluid to be in heat transfer communication with a portion of the engine breather system, such as with the outlet conduit. A heating fluid supply channel is connected to a supply of heating fluid that is at a first pressure and to the housing and arranged to direct heating fluid into the housing. A heating fluid return channel is connected to the housing and to a supply of heating fluid that is at a second pressure that is lower than the first pressure, and is arranged to direct heating fluid away from the housing. The heating fluid can be engine oil, engine coolant, compressed air or exhaust gas.

Abstract: An engine braking system includes a turbocharger having a turbine and a compressor. An exhaust manifold includes a first pipe for channeling a first portion of the engine exhaust and a second pipe for channeling a second portion of the engine exhaust. The first and second pipes are connected to an inlet of the turbine. A cross pipe, as part of an exhaust gas recirculation (EGR) conduit, is open between the first and second pipes and at one end to the remaining portion of the EGR conduit. A valve can be arranged within the cross pipe and ca be operable in a first mode of operation to block flow between the first and second pipes and allow flow between the first pipe and the remaining portion of the EGR conduit and to allow flow between the first and second pipes and the inlet of the turbine. The valve is operable in a second mode of operation to allow flow between the first and second pipes, and to reduce or block flow between the second pipe and the turbine inlet.

Abstract: A filter assembly (10) for a standpipe (14) having an opening (20) for the introduction of filtered fluid into the standpipe includes a filter (12). The filter (12) has a filter element (18) in fluid communication with the opening (20). The filter (12) is configured to seal fluid from the opening (20) except fluid flowing through the filter element (18). A valve assembly (42) is biased by a spring (46) against a first surface of the filter (12), and the valve assembly has a seal (58) on a surface facing the standpipe (14). As the filter (12) is displaced, the valve assembly (42) displaces along the standpipe (14) under bias of the spring (46) until the seal (58) of the valve assembly seals the opening (20).

Abstract: A high pressure hydraulic fitting (300) includes a body (302) having a central passage (322), a channel (304), a threaded section (314), and an extension section (310), wherein the threaded section (314) is disposed between the channel (304) and the extension section (314), and wherein the central passage (322) fluidly connects a first distal end (303) with a second distal end (316) of the body (302). A first o-ring (306) is in the channel (304). A locking nut (324) is engaged to the body (302). The locking nut (324) has an internal threaded section (326) that is arranged to mate with the threaded section (314) on the body (302).

Abstract: A turbocharger (107) for an internal combustion engine (100) includes a turbine having a divided turbine housing (109). A first inlet port (113) may be connected to a first volute that is formed in the turbine housing (109), and a second inlet port (114) connected to a second volute that is formed in the turbine housing (109). A center housing may be connected to the turbine housing (109), and a compressor (111) may be connected to the center housing. An exhaust gas valve (137) is in fluid communication with the first inlet port (113) and arranged to at least partially constrict a flow of exhaust gas from entering the first inlet port (113) of the turbine (109), but not constrict the flow of exhaust gas from entering the second inlet port (114).

Abstract: A turbocharger (107) for an internal combustion engine (100) includes a turbine having a divided turbine housing (109). A first inlet port (113) may be connected to a first volute that is formed in the turbine housing (109), and a second inlet port (114) connected to a second volute that is formed in the turbine housing (109). A center housing may be connected to the turbine housing (109), and a compressor (111) may be connected to the center housing. An exhaust gas valve (137) is in fluid communication with the first inlet port (113) and arranged to at least partially constrict a flow of exhaust gas from entering the first inlet port (113) of the turbine (109), but not constrict the flow of exhaust gas from entering the second inlet port (114).

Abstract: A fluid pressure near a filter (103) is measured and compared (307) to a predetermined value that is based on one or more engine operating parameters. When the measured fluid pressure deviates enough from the predetermined value by an established amount, an indication of the deviation may be provided to notify of a potential problem with the filter (103), such as obstruction, restriction, or some form of clogging.

Abstract: A method and apparatus for adjusting fuel injection timing detects (401) a change in the number of fuel injections for a combustion chamber (105). During a timing adjustment period, the timing for fuel injection(s) may be adjusted (405) incrementally, e.g., in a series of steps or increments, and/or based at least in part on the time elapsed since the detected of the change in the number of fuel injections.

Abstract: A fuel system for a diesel engine may have a fuel tank, a fuel pump, a fuel filter module, and a fuel rail. The fuel filter module has a vacuum side and a pressure side. The vacuum side is connected to the fuel tank and to the inlet side of the fuel pump. The pressure side is connected to the outlet side of the fuel pump and to the fuel rail. The fuel filter module has a pressure regulator and a filter element in the pressure side. The pressure regulator is disposed between the outlet side of the fuel pump and the filter element. The pressure regulator recirculates unfiltered fuel to the vacuum side of the fuel filter module.

Abstract: This invention provides a pump with a close-mounted valve for a hydraulic fuel system in an internal combustion engine. The hydraulic fuel system may have a high pressure pump connected to a low pressure side and high pressure reservoirs. The pump has a drive shaft, a shaft cylinder, one or more cylinders, and a close-mounted valve. The close-mounted valve has a valve body, a valve spool, a valve spring, and a valve coil. The valve body is positioned inside a shaft cavity formed by the shaft cylinder. The close-mounted valve may control the volume and pressure to reduce or eliminate the dumping of high-pressure hydraulic fluid in the hydraulic fuel system.