Cylinder head and manifold arrangement for injected engine
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorMasahiro Uchida
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Abstract
A cylinder head, air intake manifold, fuel injector and fuel rail arrangement for an overhead valve engine that provides a compact assembly. The fuel rail is attached to the cylinder head by fasteners that extend parallel to the fasteners that fix the intake manifold to an adjacent portion of the cylinder head. The layout is such, however, that there is no interference between the various components and thus accessibility is improved while cost is minimized.
Claims15
A fuel injected internal combustion engine comprised of a cylinder head having a plurality of intake passages, an air intake manifold attached to said cylinder head for supplying air to said cylinder head intake passages, a plurality of fuel injectors mounted in said cylinder head and positioned in proximity to said intake passages for spraying fuel directly into said intake passages, and a fuel rail for supplying fuel to said fuel injectors, said fuel rail being affixed to said cylinder head in proximity to said air intake manifold, said fuel rail being connected to said cylinder head by threaded fasteners that are disposed in the area between said fuel injectors and said air intake manifold so that said threaded fasteners for said fuel rail do not interfere with the attachment of said intake manifold to said cylinder head.
Dependencies are inferred from the claim text.