Cylinder head for internal combustion engines, especially diesel engines
OwnerLudwig Elsbett, Gunter Elsbettinventors
Life of this patent
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Abstract
A cylinder head for internal combustion engines, especially Diesel engines, with at least one opening for a passage forming an inlet or outlet and leading to a combustion chamber. This opening which is adapted to be closed and opened by a valve is on that side thereof which faces in the direction toward the combustion chamber, provided with a valve seat ring fastened in the opening of the passage. Each valve seat ring is to its major extent conical with the basis of the cone pointing toward the combustion chamber while only that end of the valve seat ring which faces away from the combustion chamber is in a projecting manner fastened to the cylinder head.
Claims14
A cylinder head for internal combustion engines, especially Diesel engines, which includes wall means defining passage means and a mouth section therefor for communication with a combustion chamber, said mouth section comprising an inner portion and an outer portion and a conical surface flaring outwardly from said inner portion to said outer portion, and valve seating ring means having an outer peripheral surface substantially parallel to and adjacent said conical surface, while projecting over the latter, said valve seating ring means being connected to said inner portion only of said mouth section and having its inner peripheral surface provided with a valve seating area, thermal insulation means between the outer peripheral surface of said valve seating ring means and the adjacent surface of said mouth section, said thermal insulation means between said valve seating ring means and the wall means of said mouth section being provided only within the region of said valve seating area and that rim portion of the respective valve seating ring means which is remote from said inner mouth portion.
A cylinder head for internal combustion engines, especially Diesel engines, which includes wall means defining passage means and a mouth section therefor for communication with a combustion chamber, said mouth section comprising an inner portion and an outer portion and a conical surface flaring outwardly from said inner portion to said outer portion, sand valve seating ring means having an outer peripheral surface substantially parallel to and adjacent said conical surface, while projecting over the latter, said valve seating ring means being connected to said inner portion only of said mouth section and having its inner peripheral surface provided with a valve seating area, thermal insulation means between the outer peripheral surface of said valve seating ring means and the adjacent surface of said mouth section, extending from that rim of said valve seating ring means which is remote from the inner mouth portion up to that rim portion of the same valve seating ring means which is connected to said inner mouth portion.
A cylinder head for internal combustion engines, especially Diesel engines, which includes wall means defining passage means and a mouth section therefor for communication with a combustion chamber, said mouth section comprising an inner portion and an outer portion and a conical surface flaring outwardly from said inner portion to said outer portion, and valve seating ring means having an outer peripheral surface substantially parallel to and adjacent said conical surface, while projecting over the latter, said valve seating ring means being connected to said inner portion only of said mouth section and having its inner peripheral surface provided with a valve seating area, each valve seating ring means having that rim portion thereof which is remote from said inner mouth portion provided with a shield-like broadening section extending radially from said last mentioned rim portion.
Dependencies are inferred from the claim text.