Composite exhaust flue
AssigneeTouchstone Research Laboratory, Ltd.
InventorsRick D. Lucas, Douglas J. Merriman, Gregg W. Wolfe, Brian L. Gordon
Life of this patent
Estimating the term…
Abstract
A composite exhaust flue which may be used to shield an area or object from convective, conductive, or radiated heat transfer from hot exhaust combustion gases is described. In certain embodiments, the composite exhaust flue may be used to protect structures from hot exhaust gases and particles such as those produced by cars, trucks, ships, boats, jets, rockets, as well as other vehicles with internal combustion engines, turbines, or rocket motors. In some embodiments, a composite exhaust flue may comprise a ceramic fiber reinforced ceramic composite high temperature face sheet positioned over an insulating layer and a structural support layer comprising a rigid, porous foam material.
Claims15
A composite exhaust flue comprising a body defining a through bore extending therethrough, wherein the composite exhaust flue comprises an inner layer comprising a ceramic fiber reinforced ceramic composite material face sheet, a structural support layer, and an insulating layer positioned between the ceramic fiber reinforced ceramic composite and the structural support layer, wherein the ceramic fiber reinforced ceramic composite material face sheet can withstand temperatures ranging from about 700° F. to about 2000° F. without significant mechanical or chemical degradation, and wherein the structural support layer comprises a rigid, porous foam material.
A composite exhaust flue comprising a body defining a through bore extending therethrough, wherein the composite exhaust flue comprises an inner layer comprising a ceramic fiber reinforced ceramic composite material face sheet, a structural support layer, an insulating layer positioned between the ceramic fiber reinforced ceramic composite and the structural support layer, and supports positioned between the ceramic fiber reinforced ceramic composite material face sheet and the structural support layer without physically contacting at least one of the fiber reinforced ceramic composite material face sheet and the structural support layer, wherein the ceramic fiber reinforced ceramic composite material face sheet can withstand temperatures ranging from about 700° F. to about 2000° F. without significant mechanical or chemical degradation, and wherein the structural support layer comprises carbon foam.
Dependencies are inferred from the claim text.