Back to results
US 6,295,969 B1Granted
Injector mounting arrangement for direct-injected engines
AssigneeSanshin Kogyo Kabushiki Kaisha
InventorsMasahiko Kato, Takayuki Sato
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeSanshin Kogyo Kabushiki Kaisha
InventorsMasahiko Kato, Takayuki Sato
Estimating the term…
A fuel injector is mounting in a cylinder head assembly. The cylinder head assembly includes a mounting bore that extends into a recess wall that forms a portion of a combustion chamber. A sleeve is placed within the mounting bore. The fuel injector is secured with a nozzle portion extending through the sleeve. The fuel injector and sleeve interface is sealed by a heat resistant sealing member. The sleeve has any of a number of configurations designed to reduce the temperature of the nozzle. In addition, the nozzle can be recessed within the sleeve to reduce the direct exposure of the nozzle to flames propagated within the combustion chamber.
A mounting arrangement for mounting a fuel injector within a cylinder head assembly of a direct injected engine, the arrangement comprising a cylinder head comprising a mounting bore, said mounting bore having a stepped configuration and extending through said cylinder head, said stepped configuration comprising a smaller diameter lower portion and a larger diameter upper portion, a sleeve extending through said smaller diameter lower portion and resting on a shoulder defined between said larger diameter upper portion and said smaller diameter lower portion, a fuel injector being positioned within said mounting bore and comprising a nozzle and a support flange, said nozzle extending at least partially into said sleeve and a sealing member being interposed between said support flange and said sleeve.
A mounting arrangement for mounting a fuel injector, said arrangement comprising a cylinder head, a sleeve being positioned within said cylinder head, and a fuel injector extending at least partially through said sleeve, said sleeve comprising a flange and a cylindrical portion depending from the flange, said cylindrical portion forming a passage into a combustion chamber, said flange abutting a surface of said cylinder head and the cylindrical portion extending beyond the surface of the cylinder head toward a combustion chamber, and a seal being positioned between said flange and said fuel injector.
A mounting arrangement for mounting a fuel injector, said arrangement comprising a cylinder head, a sleeve being positioned within said cylinder head, and a fuel injector extending at least partially through said sleeve, said fuel injector comprising a nozzle, said sleeve comprising a flange and an elongated portion, said flange abutting a surface of said cylinder head, a seal being positioned between said flange and said fuel injector and said nozzle of said fuel injector extending only part way through said elongated portion of said sleeve.
A mounting arrangement for mounting a fuel injector, said arrangement comprising a cylinder head, a sleeve being positioned within said cylinder head, and a fuel injector extending at least partially through said sleeve, said fuel injector comprising a nozzle, said sleeve comprising a flange and an elongated portion, said flange abutting a surface of said cylinder head, a seal being positioned between said flange and said fuel injector and said seal not being positioned within said sleeve.
Dependencies are inferred from the claim text.