Exhaust gas recycle (EGR) assembly
AssigneeMann+Hummel GmbH
InventorDavid Hewkin
Life of this patent
Estimating the term…
Abstract
An exhaust gas recycle (EGR) isolation flange that includes an annular body that defines a central aperture therethrough and a plurality of axially extending bosses that extend from the body is disclosed. Additionally, a method for coupling an exhaust gas recycle flange to an isolation flange is disclosed where the EGR flange is mated to the isolation flange by receiving an isolation flange boss within a boss receiving aperture of the EGR flange and by disposing a seal ring between the EGR flange body and the isolation flange body.
Claims19
An exhaust gas recycle (EGR) assembly, comprising:
- an EGR flange having an annular body and at least one boss receiving hub extending from said body on an outer periphery of said body, said boss receiving hub defining a boss receiving aperture;
- an EGR distribution ring disposed within said EGR flange;
- an isolation flange having an annular body and at least one boss for each boss receiving hub, each boss extending axially from said body in a direction substantially perpendicular to a plane of said body;
- wherein each isolation flange boss is received within a respective boss receiving aperture of said EGR flange;
- and
- a seal ring disposed between said EGR flange body and said isolation flange body such that said EGR flange body is physically isolated from said isolation flange body.
An exhaust gas recycle (EGR) isolation flange assembly for coupling to an EGR flange having an annular body and a boss receiving hub extending from the body on an outer periphery of the body where the boss receiving hub defines a boss receiving aperture, comprising:
- an isolation flange having an annular body and a boss, said boss extending axially from said body in a direction substantially perpendicular to a plane of said body;
- and
- a seal ring;
- wherein in an operative configuration with the EGR flange, said isolation flange boss is received within the EGR flange boss receiving aperture and said seal ring is disposed between the EGR flange body and said isolation flange body such that the EGR flange body is physically isolated from said isolation flange body.
An exhaust gas recycle (EGR) isolation flange, comprising:
- an annular body defining a central aperture therethrough;
- and
- a plurality of bosses, wherein said plurality of bosses extend in a direction substantially perpendicular to a plane of said body and extend axially from an outer edge of said body.
A method for coupling an exhaust gas recycle (EGR) flange to a manifold comprised of a non-metallic material, comprising the acts of:
- mating said EGR flange to a first side of an isolation flange, wherein said EGR flange has an annular body and a boss receiving hub extending from said body on an outer periphery of said body, said boss receiving hub defining a boss receiving aperture, and wherein said isolation flange has an annular body and a boss, said boss extending axially from said body in a direction substantially perpendicular to a plane of said body and toward said first side of said isolation flange;
- wherein said act of mating said EGR flange to said isolation flange includes the acts of:
- receiving said isolation flange boss within said boss receiving aperture of said EGR flange;
- disposing a seal ring between said EGR flange body and said isolation flange body such that said EGR flange body is physically isolated from said isolation flange body;
- and
- mating a manifold flange comprised of the non-metallic material and associated with said manifold to a second side of said isolation flange.
A method for coupling an exhaust gas recycle (EGR) flange to an isolation flange, comprising the acts of:
- mating said EGR flange to a first side of an isolation flange, wherein said EGR flange has an annular body and a boss receiving hub extending from said body on an outer periphery of said body, said boss receiving hub defining a boss receiving aperture, and wherein said isolation flange has an annular body and a boss, said boss extending axially from said body in a direction substantially perpendicular to a plane of said body and toward said first side of said isolation flange;
- wherein said act of mating said EGR flange to said isolation flange includes the acts of:
- receiving said isolation flange boss within said boss receiving aperture of said EGR flange;
- and
- disposing a seal ring between said EGR flange body and said isolation flange body such that said EGR flange body is thermally isolated from said isolation flange body.
Dependencies are inferred from the claim text.