Abstract: A tire monitor includes a first device (300) having at least one piezoelectric matrix element (404), and a first sensing layer (410) that includes at least one rectifier (106) and a processor element (110). The first device (300) is capable of sensing a deflection (u) in a layer of material, and is capable of processing the sensed deflection. The first device (300) is capable of wirelessly transmitting an indication (116) on a condition of the material.

Abstract: An internal combustion engine (100) includes a turbocharger (107) having a turbine (109) and a compressor (111). A charge-air cooler (121) is in fluid communication with an outlet (117) of the compressor (111) through a hot-air passage (123). An intake throttle (127) is in fluid communication with an outlet (125) of the charge-air cooler (121) through a cool-air passage (129). A junction (137) is located downstream of the intake throttle (127). An intake system (103) and an exhaust gas recirculation system (131, 133, 135) are in fluid communication with the junction (137). A bypass passage (139) containing an orifice (141) fluidly connects the hot-air passage (123) and the intake system (103).

Abstract: A crankcase (100) for an engine includes a first bank (102) of cylinders that has a plurality of cylinder bores (104) formed therein, and a second bank (102) of cylinders that includes an additional plurality of cylinder bores (104). The second bank (102) is at an angle with respect to the first bank (102). A valley structure (106) is located between the first bank (102) and the second bank (102). A gallery (122) is located between the first bank (102), the second bank (102), and the valley structure (106). The gallery (122) has at least one rear opening (118) that fluidly connects the gallery (102) to a rear portion (120) of the crankcase. At least one front opening (210) fluidly connects the gallery (122) to a front portion (116) of the crankcase (100). At least one breather opening (124) fluidly connects the gallery (122) to an outer valley surface (107).

Abstract: An apparatus includes a tangential mixer (200) having an air inlet (207) and a mixture outlet (209). A bore (205) has a bore centerline (213) and a bore perimeter (201). At least one gas inlet (211) has an inlet centerline (215) oriented tangentially to the bore perimeter (201). The inlet centerline (215) is within a cone (300). The cone (300) has a vertex point “A” on the inlet centerline (215).

Abstract: An apparatus includes a bracket (110) that has at least one retainer (136) disposed on a first side of the bracket (110) and a mounting mechanism (134) disposed on a second side of the bracket (110) such that the mounting mechanism (134) grips a fluid rail (104). The at least one retainer (136) retains wires (112) adjacent to the bracket (110) and away from the fluid rail (104). The bracket (110) is disposed between the wires (112) and the fluid rail (104).

Abstract: A component (100) for an internal combustion engine includes a plurality of as-cast features (e.g. 116) formed thereon, and a plurality of machined features (e.g. 120). The component (100) also includes at least one witness mark (128), the witness mark (128) including a cavity (202) surrounded by a first lateral surface (204), a first inclined surface (208), a second inclined surface (210), and a valley surface (212). The at least one witness mark (128) is formed during a casting operation, and is used to locate the component (100) on a fixture (300). The plurality of machined features (120) do not encroach onto an area of the at least one witness mark (128). The first inclined surface (208) and the second inclined surface (210) are at an angle (?) with respect to each other.

Abstract: A method for an internal combustion engine includes the steps of collecting exhaust gas in a volume (502) and flowing exhaust gas out of the volume in a first and a second portions (504). The first portion forms a tailpipe gas stream (506), and the second portion forms an EGR gas stream (508). The tailpipe gas stream goes through a turbine (510), and is heated in a heat exchanger (512). The heat exchanger transfers thermal energy out of the EGR gas stream (516) to heat the tailpipe gas stream. The EGR gas stream is recirculated into an intake of the internal combustion engine (518).

Abstract: An apparatus and method for measuring the pressure of a fluid near discharge ports 409 in a nozzle 213 of a fuel injector 201 are described. A fuel injector 201 is charged with fluid from a fluid tank 203 by a fuel pump 205. Upon activation of the fuel injector 201, the fluid is discharged from the nozzle 213. Fluid pressure in the nozzle 213 is communicated to a pressure sensor 215 through an orifice 411 in the nozzle 213. The pressure sensor 215 measures fluid pressure near the discharge ports 409 during fuel injector 201 operation.

Abstract: A method for straightening an eccentric shaft (100, 501) by engaging fillets (201, 601) adjacent an element (101, 509) of the shaft with angled rollers (303, 703), rotating the shaft and selectively applying a compressive rolling force (301, 709) during only a portion of the rotation into the fillets (201, 601) of the shaft through the rollers (303, 703), which results in straightening the crankshaft (100).

Abstract: An apparatus includes a housing (101), a fill tube (107) disposed within the housing (101), the fill tube (107) having a fluid inlet (125) at one end and a fluid outlet (127) at another end. The fluid outlet (127) is disposed near a passage (103) of the housing (101) such that fluid entering the fluid inlet (125) exits the housing (101) through the passage (103). A filter (113) is disposed outside the fill tube (107) and inside the housing (101), such that unfiltered gases from the passage (103) are capable of entering the filter (113). A gas outlet (121) is integrated with the housing (101), such that filtered gases from the filter (113) are capable of exiting the housing (101) through the gas outlet (121).

Abstract: An engine system (100) has a valve system (137). An inlet of a turbine (109) is fluidly connected to a first inlet (119) of the valve system (137). An outlet of the turbine (123) is fluidly connected to a second inlet (113) of the valve system (137). An outlet of a compressor (155) is fluidly connected to a first outlet (115) of the valve system (137). An inlet of the compressor (141) is fluidly connected to a second outlet (111) of the valve system (137). An inlet of an exhaust gas recirculation system (133) is fluidly connected to a third outlet (121) of the valve system (137), and an outlet of the exhaust gas recirculation system is fluidly connected to a third inlet (117) of the valve system (137).

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 fuel injector testing system has a sleeve that mechanically isolates one or more test volumes in a fuel injector. The sleeve has interfaces on an inside surface. The interfaces sealably engage the O-rings on the fuel injector. An air displacement mechanism is connected to the sleeve. The air displacement mechanism adds or removes air from the test volumes. The pressure within each test volume is checked to determine whether there is any air leakage from the test volume.

Abstract: Notification of an air intake restriction is provided for an internal combustion engine (101). Readings from one or more air pressure sensors (117, 119) utilized with an internal combustion engine (101) are processed to determine whether an air intake restriction is present. A notification is provided, for example, by displaying (209) a message on a display (123) in a driver's station of a vehicle housing the engine. Various data, including detection of an air intake restriction, may be transmitted (215) for use by personnel, for example, to provide maintenance.

Abstract: A camshaft testing system has a test sleeve, a controller, and main voltage supply. The camshaft position sensor is placed into the test sleeve. The controller activates the camshaft position sensor. The test sleeve has a test bar, which moves across the camshaft position sensor. The movement of the test bar creates a magnetic field disruption. An indication is made as to whether the camshaft position sensor can sense the magnetic field disruption. A signal indicator on the controller emits at least one flash of light if the camshaft position sensor senses the magnetic field disruption.

Abstract: A venturi mixing system mixes intake air with exhaust gases for exhaust gas recirculation (EGR) in an internal combustion engine. The venturi mixing system has a venturi disposed in a mixing conduit. The venturi is connected to an intake air conduit and a supply conduit. The venturi and mixing conduit form an annular cavity connected to an EGR conduit. The venturi forms a mixing chamber. One or more inset conduits connect to the venturi and extend into the mixing chamber. Each inset conduit has an end outlet and one or more side outlets. The venturi generates a lower pressure region in the intake air. The inset conduits generate a turbulence field in the lower pressure region. The inset conduits direct intake air into the turbulence field. The inset conduits direct exhaust gases through the end and side outlets into the turbulence field. The exhaust gases mix with the intake air in the turbulence field to form a combustion gas for combustion of fuel in the engine.

Abstract: A two stage mixing system mixes intake air with exhaust gases for exhaust gas recirculation (EGR) in an internal combustion engine. The two stage mixing system may have a two stage mixing device connected to an intake air conduit, a supply conduit, and an EGR conduit. The two stage mixing device may have a plenum disposed around a mixing conduit, which is connected to the intake air conduit and the supply conduit. The plenum is connected to one or more cross conduits and to the EGR conduit. The cross conduits extend across a mixing chamber formed by the mixing conduit. The cross conduits generate a higher velocity region in the intake air. The cross conduits direct the exhaust gases through one or more outlets into the higher velocity region. The cross conduits generate a vortex field in the exhaust gases and intake air. The exhaust gases mix with the intake air in the higher velocity region and in the vortex field.