Siemens Vdo Automotive Corporation

Mahle International Gmbh

Jason Lorne Pettipiece

James K Vanderveen

Stephen Francis Bloomer

Mark Letourneau

Roderic Cole

Ian R McLean

John Francis Marentette

Richard Donald McWilliam

David Jeungsuck Chae

Arden G Stass

Robert Franklin Glassford

Jianrui Ye

David Marion

Brian DeBacker

Bryan P Bestvater

Phillip Edward Arthur Stuart

Zhouxuan Zia

Fran Warren

David Shawn Marion

Richard Donald Mcwilliam

A resonator for an induction system includes an inlet and outlet with a resonator cavity arranged therebetween. A tube is arranged within the resonator cavity and at least partially extends between the inlet and outlet. In one example, at least one supplemental noise attenuation device is in communication with the arcuate tube, such as a quarter wave tube and/or Helmholtz resonator. A large opening is provided in the tube that opens into the resonator cavity. In one example, the large opening is arranged on an outer radius side and faces a large cavity portion of the resonator cavity. Additional supplemental noise attenuation is provided by a collar arranged concentrically relative to the tube providing an annular quarter wave tube that is coaxial with the direction of flow from the outlet.

Resonator with internal supplemental noise attenuation device

An air induction silencer assembly includes an acoustic interference member disposed within a conduit. The acoustic interference member is tuned to acoustically cancel a selected noise energy frequency. An acoustic absorbing member is also disposed within the conduit. The acoustic absorbing member converts noise energy within the conduit into heat energy to attenuate noise energy within the air induction silencer assembly. The air induction silencer assembly connects to a flexible conduit that includes an inlet portion, an outlet portion, and a flexible joint that connects the inlet portion and the outlet portion together. The flexible joint includes a rolling lobe and a rolling surface. The rolling lobe moves along the rolling surface when the inlet portion moves relative to the outlet portion.

Silencer for air induction system and high flow articulated coupling

A flow tube for an induction system with a turbo charger includes a first tube half and a second tube half with a noise attenuation plate positioned between the halves. The noise attenuation plate includes a plurality of holes having varying diameters and depths. The first tube half, the second tube half, and the noise attenuation plate are integrally formed as a single piece during an injection molding process. The noise attenuation plate is folding along a first living hinge to overlap one of the first or second tube halves. The other of the first or second tube halves is folded along a second living hinge to overlap the noise attenuation plate forming a flow tube that defines a flow path. The noise attenuation plate serves as a low pass filter that attenuates high frequencies while allowing lower frequencies through.

Induction system with low pass filter for turbo charger applications

An HQ tube arrangement suitable for packaging within a vehicle may be designed by creating a mathematical model representing a tube arrangement having a first passageway and a second passageway fluidly connected to the first passageway at first and second junctions. The second passageway is divided by the junctions into first, second, and third passages. Lengths are associated with each of the first passageway and the first, second, and third passages. A filter parameter, based upon an average transmission loss for a particular frequency over a standard deviation, is analyzed as a function of the lengths. Lengths are chosen based upon analysis of the filter parameter. Portions of the outer walls of the first and second passageways may be secured to or common to one another so that lengths of the passageways run along side of each other to provide a more compact HQ tube arrangement.

Herschel-Quincke tube for vehicle applications

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.

Method and apparatus for attaching a resonance chamber to an air induction component

Plastic parts are formed to have a relatively high wall stiffness by utilizing a pair of spaced plastic plates. One of the plates may be a simple plate. The other plate has a plurality of ribs extending from a base. The ribs are welded to the other plate. Use of the ribs provides a relatively high degree of stiffness to the final molded plastic part, for a relatively lightweight part.

High stiffness plastic wall for molded plastic products

An air cleaner assembly includes a filter located within a housing between an air inlet and outlet for filtering airflow therebetween. The air inlet extends from the housing to communicate with an air intake port located at a vehicle location where fresh air is available. A resonator device is mounted within the housing . The resonator device includes a resonator volume and a tuning neck . The resonator volume fits into the housing to reduce bulk and readily lend itself to adaptation to space requirements. The tuning neck is mounted within the outlet such that noise and vibration are communicated directly to the resonator device

Combined air cleaner resonator

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.

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Chatham, Canada

Jason Lorne Pettipiece