Abstract: Laser welding is used to attach a polyolefin air induction component to an elastomeric hose member. One of the hose or induction component includes a portion that is made from a transparent material. In one example, the hose includes a hose end portion that is formed from a transparent material. The transparent material is then positioned in an overlapping relationship to a tube received within an opening in the induction component, which acts as an absorbing component. Contour through transmission welding is used to generate a laser beam that passes through the transparent material, heats the absorbing component, which in turn heats the transparent material and forms a laser weld.

Abstract: A lost core molding assembly (20) according includes a manifold (22) which minimizes adherence between a molten alloy and the manifold. The manifold (22) receives a heated fluid from a source and circulates the heated fluid through a heated fluid passage (66.) The heated fluid passage (66) arrangement assures that the heated fluid maintains the molten alloy in an even molten condition thereby reducing degradation of the molten alloy prior to injection into the mold.

Abstract: A manifold assembly comprises an air intake manifold (42) having at least one duct (70) communicating air to an engine and a fuel conduit (46) having at least one fuel injector (54A) for communicating fuel to the engine (52) (FIG. 2). The fuel conduit (46) comprises at least a first fuel injector (54A) and a second fuel injector (54B) extending from the fuel conduit (46) wherein the first fuel injector (54A) extends in a direction transverse to the second fuel injector (54B). At least one support member (50A) comprises at least one duct passage (62C) in communication with the at least one duct and at least one fuel injector port passage (53C) in communication with the at least one fuel injector (54C) (FIG. 2A). The fuel injector port passage (53C) has a predetermined length greater than the length of the duct passage (62C) (FIG. 2A).

Abstract: An air induction assembly includes a tuning tube that is integrally formed with an air duct having a distal tube end extending into a resonance chamber. The air duct includes a shoulder portion that transitions into a base end of the tuning tube. The shoulder portion has a greater diameter than the tuning tube and defines an external duct surface. The resonance chamber includes an opening for receiving the tuning tube. A flange surrounds the opening and defines an external resonance chamber surface. The external resonance chamber surface abuts against the external duct surface to define an attachment interface. The assembly is welded at the attachment interface to securely attach the resonance chamber to the air duct.

Abstract: A process for manufacturing an air flow assembly having a valve disc within a bore. A first support is inserted into the bore from below the valve disc, and a second “floating” support is inserted from above the disc. The second support “floats” relative to the disc upon a fluid receiving member such as an inflatable bellows. As the fluid receiving member allows the second support to float when contacting the disc, any inconstancies of the disc are compensated by the “floating” second support. As the disc is squeezed between the supports heat conducted from heaters causes the material of the disc to be extruded radially outwardly into contact with the bore to obtain a consistent thickness at the disc outer periphery.

Abstract: An active noise control system (26) includes an error microphone (28), a speaker (29) and an active resonator (30) which communicate with an ANC controller (32). The active resonator is a Helmholtz resonator which is coupled to an air introduction body (19). The resonance frequency of the active resonator is varied in response to the ANC controller (32) which provides logic which responds to sensor signals to eliminate low frequency noise such that the ANC system speaker (29) will effectively control and/or spectral shape the remaining noise.

Abstract: A leak test system and method for a motor vehicle fuel system. A pump forces air under pressure into vapor containment space. The pump operates in accordance with steps established by a processor. The pump creates superatmospheric target pressure in the space during an initial charging phase step, and after completion of that step, the pump is duty-cycled to regulate pressure in the space at the target pressure. A duty cycle comprises a burst of individual air pulses, one after another. The processor processes data corresponding to the duty cycle using P-I-D operations to set the number of pulses in a succeeding burst for regulating the pressure. When stability of the duty cycle is attained, the period of the duty cycle indicates leakage from the space.

Abstract: An exhaust gas flow management assembly for an exhaust gas recirculation system including an intake conduit, an exhaust conduit in fluid communication with the intake conduit, and a closing member. The intake conduit includes an inner surface defining a fluid passageway and a recirculation opening in the inner surface. The closing member is movably mounted in the fluid passageway and has a first position where the closing member blocks fluid communication between the intake conduit and the exhaust conduit, and a second position where the closing member extends into the fluid passageway of the intake conduit at an angle relative to a plane including the recirculation opening and opens fluid communication between the intake conduit and the exhaust conduit.

Abstract: An active noise cancellation system (20) includes using a frequency domain response of a secondary path (44) of the system. The frequency domain response information provides an indication of a desired magnitude and phase of a reference signal that is used for generating a cancellation signal that drives a speaker (28) to achieve the desired amount of noise cancellation. Using a frequency domain response greatly reduces the number of computations required and the amount of memory used within the system controller. In one example, a reference signal adjustment module (40) applies the desired magnitude and phase adjustments to a reference signal having a known frequency. In another example, the referenced signal tone generator (22, 40) incorporates the desired amplitude and phase in the reference signal.

Abstract: A shroud 100 is provided for carrying an electric motor 118 of an engine cooling assembly. The motor 118 has a lead wire assembly 128 to control the operation of the motor. The shroud includes a frame 112 defining an opening 114 there through. A motor mount structure 116 is provided in the opening. A plurality of struts 124 extends in the opening from the frame to the motor mount structure thereby coupling the motor mount structure to the frame. At least one of the struts 124′ defines a lead trough 127 constructed and arranged to receive the lead wire assembly of the motor. A resilient locator 130 is associated with the lead trough and is constructed and arranged to guide the lead wire assembly into the lead trough and to maintain the lead wire assembly within the lead trough without applying constant pressure on the lead wire assembly.

Abstract: A flow tube for an induction system with a turbo charger defines a longitudinal flow path and includes a noise attenuation plate positioned within the flow tube. A plurality of ribs formed on an internal surface of the tube. The ribs are spaced apart from one another and are tuned to a desired frequency. The noise attenuation plate includes a plurality of holes having varying diameter and depths. When acoustic energy created by the turbo charger encounters the noise attenuation plate and the ribs, the change in impedance results in acoustic reflections back toward the turbo charger. Thus the noise attenuation plate cooperates with the ribs to serve as a low pass filter that attenuates high frequencies while allowing lower frequencies through.

Abstract: An air cleaner includes a slide retention structure which engages a sliding resonator volume. The volume slides along the slide retention structure into an assembled position. Once assembled, a tuning tube engages an aperture in the volume, the volume and the resonator assembly reducing noise produced by the engine. A flexible seal is positioned around the aperture to acoustically seal the resonator volume to the tuning tube. An air cleaner cover is secured to the box by a lock plate. To lock the cover to the box, the lock plate is slid so that a plurality of wedges on the plate are forced under hooks on the box, securing the cover to the box. A side opening located proximate to the wedges allow the lock plate to slide so that the hooks do not hinder the movement of the lock plate.

Abstract: The fuel rail assembly comprises a fuel conduit, at least one support connected to the conduit, an engine component body, and a resilient connector attaching the support to the engine component body. The resilient connector can be a resilient insert while the engine component body is preferably an air intake manifold. The support may also be a bracket. The fuel rail assembly further includes at least one fuel injector connected to the fuel conduit. The resilient connector, manifold, and fuel conduit are all preferably plastic.

Abstract: An air induction system (10) comprises a flow body (14) and a filter housing (16). (FIG. 1). The filter housing (16) has an opening (26) of a first shape. (FIG. 1). A filter support (34) has an outer periphery (38) of about the first shape and an inner periphery (42) of a second different shape. The support is operatively connected to the housing (16). (FIG. 1). A symmetric filter (46) is also connected to the support (34). (FIG. 1). The air induction system attenuates engine noise for a motor vehicle.

Abstract: The subject invention is a linkage assembly for an electronically controlled throttle (ETC) that provides for the precise setting of a limp home engine speed for a vehicle. Essentially a controlled amount of movement is attained between a closed position and a limp home throttle position. A throttle valve is attached to a first shaft and rotates to regulate air intake. The first shaft is attached to a sector gear. The sector gear is driven by the ETC. A stop bracket limits the amount that the sector gear can close the throttle valve. The stop bracket defines an opening, and a cam is disposed within the opening. A spring biases the stop bracket against the cam. Normally, the ETC can overcome the spring and the stop bracket is forced against the cam such that stop bracket contacts the cam to define a closed throttle position. Of course, when operational the ETC can drive the valve to open position as demanded by the vehicle.

Abstract: An active noise cancellation system (20) for use with an assembly (22) includes adjusting the phase of a reference signal an amount that corresponds to a change in phase of the noise (26) within the system. A non-acoustic sensor (44) provides a signal regarding a position or frequency of a source of noise (28) (i.e., RPM's of a vehicle engine). Control electronics (32) provide a reference signal to the system noise canceling actuator (30) (i.e., a speaker) that includes the phase adjustment responsive to the sensor signal. In one example, the reference signal is delayed an amount of time corresponding to the phase change in the noise (26) as it travels through the system (22). In another example, the phase angle is adjusted.

Abstract: An engine intake system has an imperforate walled pit disposed at an elevation vertically below a bottom wall in a main passageway that contains an entrance opening into the pit. Gaseous, heavier-than-air, hydrocarbon that is migrating upstream within the main intake passageway from an engine end of the main passageway along the bottom wall toward the entrance opening will fall through the entrance opening into the pit upon encountering the entrance opening. A medium, such as activated carbon, disposed within the interior space collects gaseous hydrocarbon that has fallen into the pit.

Abstract: The vehicle engine electrical system comprises a vehicle engine component such as an air intake manifold, at least one conductor, and foam mounting the conductor to the vehicle engine component. The conductor may be connected to a connector and thereby connected to electrical components of the vehicle such as a fuel injector, sensors, or a controller. The conductor is preferably a flex cable while the foam may be plastic.

Abstract: The subject invention is a linkage assembly for an electronically controlled throttle (ETC) that provides for the precise setting of a limp home engine speed for a vehicle. Essentially a controlled amount of movement is attained between a closed position and a limp home throttle position. A throttle valve is attached to a first shaft and rotates to regulate air intake. The first shaft is attached to a sector gear. The sector gear is driven by the ETC. A stop bracket limits the amount that the sector gear can close the throttle valve. The stop bracket defines an opening, and a cam is disposed within the opening. A spring biases the stop bracket against the cam. Normally, the ETC can overcome the spring and the stop bracket is forced against the cam such that stop bracket contacts the cam to define a closed throttle position. Of course, when operational the ETC can drive the valve to open position as demanded by the vehicle.

Abstract: A fuel delivery system comprises a fuel conduit having a gas permeable wall. A gas conduit is in communication with the fuel conduit. Gaseous fuel and liquid fuel are communicated through fuel conduit. Gaseous fuel permeating through the gas permeable wall is captured and channeled by gas conduit. Gaseous fuel may be passed to an air intake manifold and consumed by engine combustion.