Low profile internally packaged fuel injection system for two cycle engine
AssigneeBrunswick Corporation
InventorsRobert J. Hensel, James L. Wagner, James M. Hundertmark, Stephen E. Sheridan, David W. Heidel
Life of this patent
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AssigneeBrunswick Corporation
InventorsRobert J. Hensel, James L. Wagner, James M. Hundertmark, Stephen E. Sheridan, David W. Heidel
Estimating the term…
In a two cycle internal combustion engine (2), a fuel injection system is provided with a low profile compact intake manifold (22) mounted to the crankcase (8) by an adaptor plate (24) and defining an intake air flow path in a first direction (28) behind the manifold (22) through a gap between the manifold (22) and the crankcase (8) provided by the adaptor plate (24). Intake air then flows (32) into throttle bore passages (30) from behind the manifold and then reverses direction and flows through supply passages (34) having fuel injectors (38) and then into the crankcase (8). The passages share a common plenum (42) within the manifold. The fuel injectors (38), their electrical connectors (48) and a common rigid fuel supply rail (44) are all in the common plenum (42) entirely within the low profile manifold (22) and sealed from moisture and salt in a marine environment.
In a two cycle internal combustion engine having a reciprocal piston connected to a crankshaft in a crankcase, fuel supply means comprising fuel injection means, and a low profile intake manifold mounted to said crankcase and defining passage means for intake air flowing in a first direction adjacent said crankcase and then flowing in a second direction away from said crankcase and then flowing in a third direction into said crankcase.
In a two cycle internal combustion engine having a plurality of reciprocal pistons connected to a crankshaft in a crankcase, fuel supply means comprising an intake manifold mounted to said crankcase, a plurality of fuel injectors mounted in said manifold, and a common fuel rail mounted within said manifold and having discharge ports for respective said injectors, wherein the junctions of said fuel rail and said injectors are internal to said manifold, and wherein each said injector includes an electrical connection for controlling injection, and wherein each said electrical connection is internal to said manifold.
In a two cycle internal combustion engine having a plurality of reciprocal pistons connected to a crankshaft in a crankcase, fuel supply means comprising an air intake manifold mounted to said crankcase, a plurality of fuel injectors mounted within said manifold, and a common fuel rail having discharge ports for respective said injectors.
Dependencies are inferred from the claim text.