초록 ▼

An annular after reactor is aligned axially with the direction of exhaust flow from the exhaust port of a jet engine under static test. Located near the front end of the reactor is a first set of gas injectors. A second set of gas injectors are located downstream from the first set of gas injectors

An annular after reactor is aligned axially with the direction of exhaust flow from the exhaust port of a jet engine under static test. Located near the front end of the reactor is a first set of gas injectors. A second set of gas injectors are located downstream from the first set of gas injectors within the reactor. The first set of gas injectors inject natural gas into the jet engine exhaust, while the second set of gas injectors inject ammonia into the jet engine exhaust. The natural gas when ignited raises the temperature of the jet engine exhaust which incinerates the particulate matter in the exhaust. Ammonia injected into the exhaust stream functions as a reductant to eliminate up to 90% of the NOX compounds in the exhaust stream. The reactor includes a jet engine exhaust buster assembly for substantially reducing noise generated by a jet's engine's exhaust.

대표청구항 ▼

1. An apparatus for removing particulate matter and nitrogen oxides from an exhaust stream generated by a jet engine under test, said apparatus comprising:an annular after reactor aligned axially with a direction of exhaust flow from an exhaust port of said jet engine, said annular after reactor hav

1. An apparatus for removing particulate matter and nitrogen oxides from an exhaust stream generated by a jet engine under test, said apparatus comprising:an annular after reactor aligned axially with a direction of exhaust flow from an exhaust port of said jet engine, said annular after reactor having a cylindrical shaped outer casing, and an interior; first injecting means located within the interior of said annular after reactor for injecting natural gas into said exhaust stream to remove said particulate matter from said exhaust stream when a temperature for said exhaust stream is raised to a first temperature range; igniting means positioned adjacent said first injecting means to ignite said natural gas injected into said exhaust stream raising the temperature of said exhaust stream to said first temperature range which removes said particulate matter from said exhaust stream; and second injecting means located within the interior of said annular after reactor downstream from said first injecting means, said second injecting means injecting ammonia into said exhaust stream to remove said nitrogen oxides from said exhaust stream when the temperature of said exhaust stream is within a second temperature range; and sound attenuating means positioned within said annular after reactor for substantially reducing noise levels within said annular after reactor.