Exhaust manifold gasket with integral heat sleeve

Details Exhaust manifold gasket with integral heat sleeve Exhaust manifold gasket with integral heat sleeve

F - Mech Eng,Light,Heat,Weapons

02

F

F02F 11/00 (2006.01) F01N 13/00 (2010.01) F01N 13/18 (2010.01)

Patent

CA 2380961

An improved exhaust manifold gasket for sealing between cylinder head port and flanged exhaust manifold of an internal combustion engine. The gasket includes an integral heat insulating sleeve for reducing thermal stresses on cylinder head port and gasket body, and is comprised of first and second metal layers fixedly secured together along a unitary plane. An aperture through the gasket provides for passage of high-temperature exhaust gases, wherein the first and second layers define at least one full sealing bead disposed about the circumference of the aperture. The second layer includes a plurality of circumferentially disposed leg portions symmetrically disposed about the exhaust aperture. The leg portions are adapted to receive the attached sleeve, which is positioned orthogonally to the unitary plane and adapted to extend into the exhaust port. The sleeve forms an insulating air gap between its exterior circumference and the interior circumference of the exhaust port.

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