Large caliber gun muffler

Details Large caliber gun muffler Large caliber gun muffler

1994-01-12

1995-03-21

Bentley, Stephen C.

Ordnance

Barrels

Silencers

181223, 181225, F41A 2130

Patent

active

053985893

ABSTRACT:
A muffler for a large caliber gun having a gun tube includes a transition section fitted around the gun tube and engaging the gun tube for preventing the escape of residual combustion gases caused by a firing of the gun. Attached to the transition section is at least one pressure vessel which defines a pressure chamber for containing residual combustion gases and attenuating pressure waves. A vent stack is coupled to the pressure chamber at a port of the pressure chambers and an exhaust blower is disposed in the vent stack for removing residual combustion gases from the pressure chamber between firings. A valve, disposed in the vent stack between the pressure chamber and the exhaust blower, closes during firings of the gun and opens between firings for permitting the exhaust blower to remove residual combustion gases from the pressure chamber. At least one baffle and orifice assembly in the pressure chamber serves to attenuate pressure waves. Preferably, there are two pressure vessels, including a main pressure vessel and an extension pressure vessel, disposed in series with one another.

REFERENCES:
patent: 1017003 (1912-02-01), Kenney
patent: 1207264 (1916-12-01), Bailey
patent: 1462158 (1923-07-01), Wildner
patent: 2208093 (1940-07-01), Brown
patent: 2798743 (1957-07-01), Olesten
patent: 3120877 (1964-02-01), Morris et al.
patent: 3693432 (1972-09-01), Stewart et al.
patent: 3710679 (1973-01-01), Werbell, III
patent: 4733751 (1988-03-01), Piesik
patent: 4907488 (1990-03-01), Seberger
The Washington Post and Times Herald, "Navy can Silence a Howitzer", Oct. 19, 1957, p. A3.

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