Exhaust gas manifold

Claim 2

An exhaust gas manifold for an internal combustion engine, comprising an enclosed outer shell, a plurality of first inlet conduits and a first outlet conduit on said outer shell, an inner shell assembly carried within said outer shell in spaced relation thereto, said inner shell assembly having a plurality of inlet openings and an outlet opening formed in the wall thereof, a second outlet conduit projecting outwardly from said inner shell assembly outlet opening and slidably carried in said first outlet conduit, a plurality of second inlet conduits projecting outwardly from said inner shell assembly inlet openings and slidably received in said first inlet conduits, and means slidably interconnecting a plurality of said second inlet conduits and said second outlet conduit to said inner shell assembly for movement of said second inlet and outlet conduits radially with respect to said assembly and thereby permitting movement of said assembly with respect to said outer shell.

Claim 3

An exhaust gas manifold as set forth in claim 1 in which said inner shell assembly comprises an elongated sleeve, a pair of end caps closing the ends of said sleeve, and a plate extending across said sleeve with its ends in spaced relation to said end caps, said second inlet and outlet conduits being interconnected to said sleeve.

Claim 4

An exhaust gas manifold as set forth in claim 1 in which said inner shell assembly comprises a first sleeve having its ends closed to form an intermediate shell, and a second open-ended sleeve carried in said first sleeve to form an inner shell, means for slidably supporting said first sleeve in spaced relation to said outer shell and second sleeve, said second inlet conduits are interconnected to said intermediate shell with their ends projecting through inlet openings in said inner shell, said inner shell inlet openings being substantialy larger than said second inlet conduits, said second outlet conduit is interconnected to said intermediate shell, and said first and second outlet conduits are disposed adjacent one end of said manifold with the spacing between the ends of the first and second sleeves at said one end of the manifold being less than the spacing between the opposite ends of said first and second sleeves.

Claim 5

An exhaust gas manifold as set forth in claim 1 in which said inner shell assembly comprises a first sleeve having its ends closed to form an intermediate shell, and a second open ended sleeve carried in said first sleeve to form an inner shell, said second inlet conduits being interconnected to said intermediate shell with their inner ends projecting through inlet openings in said inner shell, said inner shell inlet openings being substantially larger than said second inlet conduits whereby said inner shell is movable with respect to said conduits, said second outlet conduit is interconnected to said intermediate shell, and means are provided for slidably supporting said first sleeve in spaced relation to said outer shell and second sleeve.

Claim 6

An exhaust gas manifold as set forth in claim 4 with the addition that said second sleeve has a plurality of second openings formed therein disposed out of alignment with said second inlet and outlet conduits.

Claim 7

An exhaust gas manifold as setforth in claim 4 in which one of said second inlet conduits is fixedly connected to said intermediate shell.

Claim 8

An exhaust gas manifold for an internal combustion engine, comprising an enclosed outer shell, a plurality of first inlet conduits and a first outlet conduit on said outer shell, an inner shell assembly carried within said outer shell in spaced relation thereto, said inneR shell assembly having a plurality of inlet openings and an outlet opening formed in the wall thereof, a second outlet conduit projecting outwardly from said inner shell assembly outlet opening into said first outlet conduit, a plurality of second inlet conduits projecting outwardly from said inner shell assembly inlet openings into said first inlet conduits, and means slidably interconnecting a plurality of said second inlet conduits to said inner shell assembly comprising a pair of axially spaced radially extending members projecting outwardly from each of said second inlet conduits and disposed on the opposite faces of the inner shell assembly wall in which said inlet openings are formed, and a washer interposed between each of said members and one of said opposite wall faces.

Claim 9

An exhaust gas manifold for an internal combustion engine, comprising an enclosed outer shell, a plurality of first inlet conduits and a first outlet conduit on said outer shell, an inner shell assembly carried within said outer shell in spaced relation thereto, said inneR shell assembly having a plurality of inlet openings and an outlet opening formed in the wall thereof, a second outlet conduit projecting outwardly from said inner shell assembly outlet opening into said first outlet conduit, a plurality of second inlet conduits projecting outwardly from said inner shell assembly inlet openings into said first inlet conduits, and means slidably interconnecting a plurality of said second inlet conduits to said inner shell assembly comprising a pair of axially spaced radially extending members projecting outwardly from each of said second inlet conduits and disposed on the opposite faces of the inner shell assembly wall in which said inlet openings are formed, and a washer interposed between each of said members and one of said opposite wall faces.

Claim 10

An exhaust gas manifold as set forth in claim 7 with the addition that said inner shell assembly wall is in the form of a closed curve, said inlet openings are generally elliptical, and the washers disposed against the faces of said wall have arcuate cross-sections.