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1. (WO1998049440) INTEGRATED DUCT AND RESONATOR FOR AN AUTOMOBILE ENGINE AIR INDUCTION SYSTEM

Pub. No.:    WO/1998/049440    International Application No.:    PCT/CA1998/000382
Publication Date: Fri Nov 06 00:59:59 CET 1998 International Filing Date: Fri Apr 24 01:59:59 CEST 1998
IPC: F02M 35/12
Applicants: SIEMENS CANADA LIMITED
Inventors: BLOOMER, Stephen, F.
MERRITT, Mark, W.
Title: INTEGRATED DUCT AND RESONATOR FOR AN AUTOMOBILE ENGINE AIR INDUCTION SYSTEM
Abstract:
An integrated duct and resonator chamber component is installed on an engine between the air cleaner and throttle body to establish a flow path for inducted air flow to the engine through a duct portion of the component. One or more resonator chambers are provided which can be of differing volumes to be tuned to different noise frequency ranges. Fluid communication between the duct portion and each resonator chamber can either be defined by a cut away region to create an expansion chamber and/or with one or more small openings to create a Helmholtz resonator. The duct portion is described as variously shaped, including single or double elbow configuration.