Muffler for exhaust gas from an internal combustion engine

Patent · Tue Aug 26 04:00:00 EDT 1986

OSTI ID:5352215

Tanaka, H; Sekiya, M; Uchikawa, F

A muffler is described for the exhaust gas of an internal combustion engine, consisting of: a casing, a perforated sleeve disposed in the casing, the perforated sleeve having an interior through which the exhaust gas flows and a wall having a plurality of openings, a cylindrical porous sound-absorbing body arranged coaxially with the perforated sleeve on an outer periphery of the perforated sleeve, a cylindrical thin film made of metal, the cylindrical thin film being intimately interposed between the perforated sleeve and the cylindrical porous sound-absorbing body, a space defined between an inner periphery of the casing and an outer periphery of the cylindrical porous sound-absorbing body, and at least one communication passage means for providing a pressure balancing communication between the interior of the perforated sleeve and the space.

• Assignee: Mitsubishi Denki Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4607721
• OSTI ID: 5352215
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CONTROL
COVERINGS
ENGINES
EQUIPMENT
EXHAUST GASES
EXHAUST SYSTEMS
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MATERIALS
NOISE POLLUTION CONTROL
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
POROUS MATERIALS
PRESSURE CONTROL
SLEEVES
SPACE DEPENDENCE
WASTES