초록 ▼

A muffler for attenuating noise produced by a pneumatic device having limited clearance. The muffler includes a housing, a base and an acoustic absorption insert. The housing defines an upstream end and a downstream end, with the downstream end being closed. Further, the housing tapers from a maximu

A muffler for attenuating noise produced by a pneumatic device having limited clearance. The muffler includes a housing, a base and an acoustic absorption insert. The housing defines an upstream end and a downstream end, with the downstream end being closed. Further, the housing tapers from a maximum width of less than approximately 1.5 inches (38 mm) to the downstream end. The base is secured to the housing at the upstream end and includes a tube for directing airflow and sound waves into the housing. Finally, the acoustic absorption insert is disposed within the housing and includes a web of fibers configured to absorb sound waves. The muffler can be utilized with a pneumatic valve having limited space available for receiving the muffler, providing noise attenuation with minimal back pressure.

대표청구항 ▼

[What is claimed is:] [1.]a housing defining an upstream end and a downstream end, the downstream end being closed, wherein at least a portion of the housing tapers in width to the downstream end;a base secured to the housing at the upstream end, the base including an inlet tube for directing airflo

[What is claimed is:] [1.]a housing defining an upstream end and a downstream end, the downstream end being closed, wherein at least a portion of the housing tapers in width to the downstream end;a base secured to the housing at the upstream end, the base including an inlet tube for directing airflow and sound waves from the exhaust port into the housing; andan acoustic absorption insert disposed within the housing, the insert including a web of fibers configured to absorb sound waves;wherein airflow in the housing is directed toward the base.