Electronically controlled dual chamber variable resonator

Electronically controlled variable loudness muffler

Embossed shell for spun mufflers

Encapsulated bulk absorber acoustic treatments for aircraft engi

Energy saving exhaust siphon

Engine air cleaner - noise reducer

Engine air inlet and silencer for motor vehicle

Engine assembly, acoustical liner and associated method of...

Engine exhaust apparatus

Engine exhaust apparatus and method

Engine exhaust muffler

Engine exhaust muffler

Engine exhaust muffler

Engine exhaust muffler

Engine exhaust muffler apparatus

Engine exhaust muffler with exhaust emission control function

Engine exhaust muffler with guide vanes imparting a...

Engine exhaust noise suppressor

Engine incoming air silencer and mounting arrangement therefore

Engine inlet deep acoustic liner section