7results about "Sound absorption" patented technology

An exhaust muffler comprises a hollow body and an exhaust pipe disposed at least partially within the hollow body. The hollow body defines a first set of apertures on the hollow body and the exhaust pipe defines a second set of apertures and a third set of apertures on the exhaust pipe. The exhaust pipe has an inner surface and an outer surface. The inner surface defines a primary exhaust gas flow path (P). At least one divider allows the exhaust pipe to pass therethrough, and divides the hollow body into a first chamber and a second chamber. The first chamber defines a reservoir fluidly associated with the primary exhaust gas flow path (P) via the second set of apertures, and to the environment via the first set of apertures. The second chamber is fluidly associated with the primary exhaust gas flow path (P) via the third set of apertures.

A system for generating power with reduced or negative carbon emissions. The system includes a power plant portion having a power generation unit having an input coupled to a supply of a hydrocarbon fuel and having an energy exchange pathway. The system also includes a direct air capture (DAC) portion having a CO2 adsorption device having a CO2 adsorption material and a blower electrically coupled to the power generation unit, the blower directing a flow of air through the CO2 adsorption device in a carbon capture mode, wherein the CO2 adsorption device is coupled to and in energy communication with the energy exchange pathway for releasing adsorbed CO2 in a carbon release mode.

An exhaust muffler includes a hollow body at least partially housing an exhaust pipe. The exhaust pipe is adapted to allow exhaust gas to flow therethrough. Further, the exhaust pipe defines a plurality of apertures on the exhaust pipe such that exhaust gas flowing through the exhaust pipe can flow out of the exhaust pipe within the hollow body through the plurality of apertures and / or back into the exhaust pipe from the hollow body. The secondary tube is disposed within the hollow body and is filled with a sound absorbing material. At least one baffle is engaged with the exhaust pipe and the secondary pipe to allow at least one of the exhaust pipe and the secondary pipe to pass therethrough.

An exhaust muffler includes a hollow body and an exhaust pipe disposed at least partially within the hollow body. The hollow body defines a first set of apertures on the hollow body, and the exhaust pipe defines a second set of apertures and a third set of apertures on the exhaust pipe. The exhaust pipe has an inner surface and an outer surface, wherein the inner surface defines a main exhaust gas flow path (P). At least one divider allows the exhaust pipe to pass therethrough and also divides the hollow body into a first chamber and a second chamber. The first chamber defines a reservoir fluidly associated with the main exhaust gas flow path (P) via the second set of orifices and leading to the environment via the first set of orifices, and the second chamber is fluidly associated with the main exhaust gas flow path (P) via the third set of orifices.

An exhaust muffler includes a hollow body that at least partially houses an exhaust pipe. The exhaust pipe is adapted to allow a flow of exhaust gases therethrough. Further, the exhaust pipe defines a plurality of orifices on the exhaust pipe such that the exhaust gases flowing through the exhaust pipe can flow out of the exhaust pipe within the hollow body and / or flow back into the exhaust pipe from the hollow body through the plurality of orifices. A secondary pipe is disposed within the hollow body and filled with a sound absorbing material. At least one baffle is engaged with the exhaust pipe and the secondary pipe to allow at least one of the exhaust pipe and the secondary pipe to pass therethrough.

Various implementations include a muffler having a shell and a tube assembly. The shell defines a shell cavity and has a shell longitudinal axis, a shell first end, and a shell second end, each of which defines a shell opening extending into the shell cavity. The tube assembly is disposed within the shell cavity. The tube assembly includes three or more nested tubes. Each of the three or more nested tubes has a tube longitudinal axis parallel to the shell longitudinal axis, a tube first end, and a tube second end. Each of the three or more nested tubes defines a plurality of perforations. The three or more nested tubes are disposed circumferentially adjacent to one another around the shell longitudinal axis such that portions of the sides of the three or more nested tubes form openings extending along the shell longitudinal axis.

An exhaust silencer comprising a hollow body and an exhaust pipe, which is at least partially located within the hollow body. The hollow body defines a first set of openings, and the exhaust pipe defines a second and a third set of openings. The exhaust pipe has an inner surface and an outer surface, the inner surface defining a primary exhaust flow path (P). At least one partition allows the exhaust pipe to pass through and also divides the hollow body into a first and a second chamber. The first chamber is a reservoir connected to the primary exhaust flow path (P) via the second set of openings and to the environment via the first set of openings. The second chamber is in fluid communication with the primary exhaust flow path (P) via the third set of openings.