Dayco IP Holdings, LLC

Nicole Bruder

Keith Hampton

David E Fletcher

Andrew D Niedert

James H Miller

Matthew C Gilmer

Rex Bravo

Brian M Graichen

Matt Gilmer

Venturi devices for producing vacuum are disclosed that include a housing defining a motive port, a suction port, a discharge port, a first flow passage between the motive port and the discharge port, and a second flow passage into and through the suction port and into fluid communication with the first flow passage, a first check valve incorporated into the housing and positioned to control fluid flow through the suction port, and a sound attenuating wrap about the outer surface of the housing. The Venturi devices may also include a sound attenuating member disposed in the first flow passage downstream of the intersection of the second flow passage and the first flow passage, in the portion of the second flow passage leading into the suction port, in the first check valve, or combinations thereof.

Noise attenuation in a Venturi device and/or check valves

Actuated valve

Venturi device

Growing community of inventors

Harrison Township, MI, United States of America

Nicole Bruder