Large diesel engine exhaust muffler

Patent · Tue Jul 22 04:00:00 EDT 1986

OSTI ID:5476145

Harris, T R; Harris, R T

An internal combustion engine muffler is described which consists of: a. an elongated housing having a curvilinear side wall, an inlet end wall formed with a first inlet opening, and an outlet end wall formed with a first outlet opening; b. an inlet tube connected to the inlet end wall and communicating with the first inlet opening in the inlet end wall; c. an outlet tube communicating with the first outlet opening in the outlet end wall; d. a first internal reflection wall axially spaced downstream from the inlet end wall forming a close fit with the curvilinear side wall and formed with a plurality of large tube openings; e. a second internal reflection wall spaced between the inlet end wall and the first internal reflection wall forming a close fit with the curvilinear side wall and formed with a first edge echo orifice opening therethrough and a second inlet tube opening; f. the inlet tube communicates with the second inlet tube opening in the second internal reflection wall; g. a bulkhead wall axially spaced downstream from the first internal reflection wall forming a close fit with the curvilinear side wall and formed with a plurality of large tube openings axially aligned with the large tube openings in the first internal reflection wall; h. at least three elongated internal large tube members extending from the internal reflection wall to the bulkhead wall and communicating with the large tube openings in the first internal reflection wall and the bulkhead; i. inner small tube members coaxially mounted within each of the large tubes forming open ended pulse chambers.

• Assignee: NOV; EDB-86-150498; NOV-85-018298
• Patent Number(s): US 4601363
• OSTI ID: 5476145
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
330700 -- Advanced Propulsion Systems-- Emission Control
ALIGNMENT
CONTROL
DESIGN
DIESEL ENGINES
ENGINES
EQUIPMENT
EXHAUST GASES
EXHAUST SYSTEMS
EXPANSION
FLUID FLOW
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
NOISE POLLUTION CONTROL
OPENINGS
OPERATION
ORIFICES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
PULSES
REFLECTION
VORTEX FLOW
WALLS
WASTES