USA as Represented by Secretary of the Navy

Clyde A Morehead

John W Henry, Iv

The invention is directed to a muffler for a gas flow at a gas intake of a achine. The muffler includes at least one venturi nozzle. Each venturi nozzle has an inlet opening, an outlet opening and a throat therebetween. Each venturi nozzle cooperates with a chamber. The chamber has a chamber inlet and a chamber outlet. The chamber inlet is connected to either the inlet opening or the outlet opening of each venturi nozzle. The chamber outlet is connected to the gas intake of the machine. Some inventive embodiments feature at least two venturi nozzles wherein at least one inlet opening can be closed, thereby varying the total effective throat area of the muffler. For some inventive embodiments, the chamber volume can be varied.

Venturi muffler having plural nozzles

The invention is directed to a muffler for a gas flow at a gas intake of a achine. The muffler includes at least one venturi nozzle cooperating with a chamber. Each venturi nozzle has an inlet opening, an outlet opening and a throat therebetween. The chamber has a chamber inlet connected to either the inlet opening or the outlet opening of each venturi nozzle. The chamber has a chamber outlet connected to the gas intake of the machine. Some embodiments of the invention feature variation of the total throat area of the muffler. Other embodiments of the invention feature variation of the volume enclosed by the chamber.

Venturi muffler with variable throat area

A muffler for a gas flow at a gas intake of a machine consists of a venturi ozzle cooperating with a chamber. The venturi nozzle has an inlet opening and outlet opening. The chamber has a gas inlet connected to one of the inlet opening and the outlet opening of the venturi nozzle. The chamber has a gas outlet connected to the gas intake of the machine.

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Annapolis, MD, United States of America

Clyde A Morehead