Abstract: An exhaust gas recirculation (EGR) system communicates hot exhaust gases from an exhaust manifold to an intake manifold through a first passage and a second passage parallel with the first passage. A first EGR valve assembly controls exhaust gas flow through the first passage and a second EGR valve assembly controls exhaust gas flow through the second passage. Exhaust gas is selectively flowed through one or both of the first and second passages to provide the desired temperature and flow through the intake manifold to the engine.

Abstract: An idle air control valve (11) for a vehicle includes a stator assembly (12) and a rotor assembly (26) operatively associated with the stator assembly and mounted for rotation with respect to the stator assembly. A shaft (36) is restricted from rotation and is associated with the rotor assembly such that rotation of the rotor assembly causes linear movement of the shaft. A pintle (38) is associated with a distal end of the shaft for linear movement therewith. A journal (28) is associated with the rotor assembly and is constructed and arranged to support and permit rotation of the rotor assembly relative to the stator assembly. Lubricant (30) is provided between a surface of the journal and a surface of the rotor assembly.

Abstract: An exhaust bypass valve assembly for an internal combustion engine includes an exhaust bypass valve having valve structure coupled to a rotatable shaft such that rotation of the shaft moves the valve structure between opened and closed positions. An actuator is disposed remotely from the bypass valve for selectively causing rotation of the shaft associated with the valve structure in opposing directions. Linkage structure is connected between the actuator and the shaft to transfer motion of actuator to the shaft.

Abstract: A system module is provided for recirculating exhaust gases from an internal combustion engine to an intake manifold of the internal combustion engine. The module includes a body (12) including a passageway (41) between an exhaust gas inlet (32) and an exhaust gas outlet (34). An orifice (36) constricts the flow of exhaust gases proximate the exhaust gas outlet. A differential pressure sensor (38) is constructed and arranged to sense differential pressure across the orifice. A manifold absolute pressure sensor (42) is constructed and arranged to sense vacuum pressure associated with the exhaust gas outlet. A first hose (40) is coupled with the body and provides the differential pressure sensor with vacuum pressure on a first side of the orifice. A second hose (44) is coupled with the body and provides the manifold pressure sensor with vacuum pressure. The first and second hoses are integral with the system module.

Abstract: A solenoid (10) includes a shell (12), a lower stator member (20) associated with the shell, and an upper stator member (30) in the shell. The upper stator member is separate from the lower stator member and has a wire receiving member (34). A half bobbin (40) is associated with the upper stator member and has a wire receiving portion (44). Wire is wound directly about the portion of the half bobbin and directly about the member of the upper stator member to define a winding (46). An armature (54) is movable with respect to at least the lower stator member upon energizing the winding.

Abstract: An EGR valve (20) comprises three gear parts (40, 42, 44) that provide a variable ratio drive system through which an electric actuator (34) operates a movable valve element (26). Each of the gear parts (40, 42, 44) is a single unitary part, with one part (42) containing two sets of gear teeth (46, 48) each associating with a set of gear teeth of a respective one of the other two parts. Limit stops (56, 58, 60; 68, 70) are integrally formed in two parts (42, 44).

Abstract: An adjustable positioning apparatus, which may be used for a foot-operated control, includes a first member that is movably supported with respect to a base, an adjuster that is supported on the first member, and a second member. The adjuster includes a displacement device, an actuator, and a controller. The displacement device includes a first portion that is coupled to the first member, and includes a second portion that is displaced with respect to the first portion. The actuator displaces the second portion with respect to the first portion, and the controller operates the actuator and determines displacement of the second portion with respect to the first portion. The second member is coupled to the second portion.

Abstract: A fuel injector for use with LPG or other volatile fuels has fuel inlets through a cylindrical wall of a valve group tube assembly. Fuel venting is along a longitudinal axis of the fuel injector to an end opposite the injection end. An O-ring retaining cup is welded to the tube assembly above and below the fuel inlets to seal these members and to maintain alignment of holes in the cup with the fuel inlets.

Abstract: An exhaust bypass valve assembly is provided for a vehicle. The assembly includes a housing (22) defining an inlet passageway (21) and first and second passageways (24, 26) in communication with the inlet passageway and with each other, and a bore (28) at a juncture (25) of the passageways and in communication with the passageways. The inlet passageway is associated with an exhaust manifold, the first passageway is associated with a cooler of a vehicle, and the second passageway is associated with an engine of a vehicle. An exhaust bypass valve cartridge (30) includes a valve member (32) removably disposed in the bore of the housing, and shaft structure (40, 42) associated with the valve member so that rotation of the shaft structure rotates the valve member. The valve member is movable between first and second positions to control the flow of exhaust gas flow from the inlet passageway through the first and second passageways.

Abstract: A motor (10) for a vehicle includes a stator assembly (14) and a rotor assembly (16). Bearing structure (20, 22) support the rotor assembly to permit rotation of the rotor assembly with respect to the stator assembly. A shaft (30) is threadedly engaged with the rotor assembly and is constructed and arranged such that rotation of the rotor assembly causes linear movement of the shaft. A perfluoropolyether (PFPE) based lubricant (38), having an thermal functionality upper temperature limit of over +200° C., lubricates at least the bearing structure.

Abstract: A commutator (10) includes a core (12) having a generally annular periphery (15). A plurality of commutator bars (14) is provided in a spaced relation about the periphery of the core. At least two of the commutator bars have a width different from each other.

Abstract: A technique is provided for detecting leaks in a fuel system such as an automotive fuel system. The technique complements an on-board diagnostics evaporative leak monitor that uses natural vacuum leak detection (NVLD). The technique utilizes the same switch and valve utilized by NVLD. Before engine shut-down, the system maintains a vacuum in the fuel tank and also provides a low-level purge flow. Upon engine shut-down, a timer is started and the NVLD switch is monitored to determine how long the vacuum is maintained in the tank. If the vacuum is maintained longer than a predetermined time period, then the system determines that the leak test is passed. If the vacuum decays faster than the predetermined time period, then the NVLD test is performed and system determines that the system passes the leak test if the NVLD test is passed.

Abstract: A valve apparatus includes a housing, which defines an interior chamber, a baffle disposed in the interior chamber, and a volume of liquid. The housing includes first, second and third portions. The first portion includes first and second ports that communicate with the interior chamber. The second portion is spaced from the first portion along a longitudinal axis. And the third portion extends along the longitudinal axis between the first and second portions. The baffle at least partially defines a helical fluid flow path between the first and second ports, and the volume of the liquid is disposed in the second portion of the housing.

Abstract: An electronic throttle control housing structure (10) for a vehicle includes an upper housing (12), a lower housing (14) mating with the upper housing, and a sensor assembly (20) clamped between the upper housing and the lower housing. One of the upper housing or the lower housing has surfaces defining slot structure (22, 24) therein. A portion of the sensor assembly is received in the slot structure in interference fit relation with the surfaces defining the slot structure. Thus, no screws or glue is needed to mount the sensor assembly in the housing structure.

Abstract: An engine actuator includes a sensor assembly driven by an electric motor through a worm gear. An output gear is also driven by the electric motor about an axis transverse to the electric motor output shaft. A bearing located between the actuator housing and the output gear shaft limits gear shake of the output gear during operation of the engine actuator. A coupling mounted on the output gear shaft outside the actuator housing limits axial movement of the output gear shaft.

Abstract: A valve apparatus includes a housing, which defines an interior chamber, a baffle disposed in the interior chamber, and a volume of liquid. The housing includes first, second and third portions. The first portion includes first and second ports that communicate with the interior chamber. The second portion is spaced from the first portion along a longitudinal axis. And the third portion extends along the longitudinal axis between the first and second portions. The baffle at least partially defines a helical fluid flow path between the first and second ports, and the volume of the liquid is disposed in the second portion of the housing.

Abstract: An idle air control valve includes a sleeve that defines an internal space and an electrical connector including terminals attached to the sleeve. The connector is joined to the sleeve to enclose the actuator.

Abstract: An idle air control valve for a vehicle includes a housing (21), a motor (32) disposed in the housing, a shaft (29) associated with the motor, and a bellows assembly (30) including a bellows structure (10) having a first end defining a base (14), a second, opened end (16), and a bellows (18) between the first and second ends. An annular rim member (28) is associated with the second opened end. A pintle (24) has surfaces defining an annular groove (26) therein. The annular rim member (28) is received, in press-fit engagement, in the annular groove (26). The base (14) is in press-fit engagement with a recess (22) in the housing and the pintle (24) is coupled with an end of the shaft, such that the bellows structure together with the pintle surround the shaft and provide a barrier substantially preventing contaminants from entering the motor.

Abstract: An exhaust gas recirculation (EGR) system communicates hot exhaust gases from an exhaust manifold to an intake manifold through a first passage and a second passage parallel with the first passage. A first EGR valve assembly controls exhaust gas flow through the first passage and a second EGR valve assembly controls exhaust gas flow through the second passage. Exhaust gas is selectively flowed through one or both of the first and second passages to provide the desired temperature and flow through the intake manifold to the engine.

Abstract: An engine cooling structure (20) includes a condenser (22) constructed and arranged to be disposed on a grille side of a vehicle, a radiator (24) constructed and arranged to be disposed on an engine side of a vehicle, and an engine cooling fan module (26) sandwiched directly between the condenser and radiator. The module has at least one motor (28) driving at least one fan (30) such that when the fan moves air, air is pulled through the condenser and pushed through the radiator.