Exhaust manifold
AssigneeDaimlerChrysler AG
InventorsGerd Dürr, Georg Georgs, Gerd Tiefenbacher, Hans A. Härle
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Abstract
In an exhaust manifold to be mounted on a cylinder head of an internal combustion engine which cylinder head includes a plurality of exhaust passages, the exhaust manifold includes a gas collector housing with a mounting flange, a gas conducting duct arranged in spaced relationship within the gas collector housing and having a mounting collar, and a hold-down element mounted together with the flange onto the cylinder head and including a recess receiving the collar of the gas conducting duct for retaining the gas conducting duct in engagement with the cylinder head but permitting relative movement thereto.
Claims15
An exhaust manifold mounting arrangement on a cylinder head of an internal combustion engine which cylinder head includes a plurality of exhaust passages for the discharge of exhaust gases from the cylinder head, said exhaust manifold including an exhaust gas collector housing, a gas conducting duct arranged within said exhaust gas collector housing in spaced relationship therefrom so as to form a gap between said exhaust gas collector housing and said gas conducting duct, said gas collector housing having a flange adjacent said cylinder head and said gas conducting duct having a collar at its end adjacent the cylinder head, a hold-down element arranged between the flange of said gas collector housing and said cylinder head and including a recess in which the collar of said gas conducting duct is engaged, and a sealing device disposed between said hold-down element and said collar at one side and said cylinder head on the other side, and fastening means extending through said flange and said hold-down element for firmly mounting said gas collector housing together with said hold-down element and said sealing device to said cylinder head while permitting limited movement of said collar relative thereto in order to provide for heat expansion of said gas conducting duct, which is subjected to high temperatures during engine operation.
Dependencies are inferred from the claim text.