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US 4,227,492 AGranted
Intake manifold for a vertical shaft engine
AssigneeThe Bendix Corporation
InventorElmer A. Haase
Life of this patent
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AssigneeThe Bendix Corporation
InventorElmer A. Haase
Estimating the term…
A manifold system for a two stroke cycle vertical shaft internal combustion engine. A series of horizontal bores are perpendicular to the vertical shaft. A piston located in each bore establishes a combustion chamber and a fuel-air mixture supply chamber therein. A passage connects the supply chamber to the combustion chamber and a manifold system connects the supply chamber to a mixing chamber. Each mixing chamber is connected to an independent fuel supply and to a common air supply. A valve is located between the mixing chamber and the supply chamber to control the communication of a fuel-air mixture between the mixing chamber and the supply chamber. When the piston moves toward the combustion chamber a fuel-air mixture therein is compressed and at the top of the stroke ignited to produce combustion. As the piston moves toward the combustion chamber, the supply chamber expands and draws in a fuel-air mixture. When combustion occurs, the piston moves toward the supply chamber causing the valve to close and compress the fuel-air mixture now in the supply chamber. After the piston has travelled a predetermined distance, the combustion chamber is communicated to the surrounding environment and the passages opened to allow the fuel-air mixture therein to flow into the combustion chamber. At the bottom of the exhaust stroke, the piston again moves toward the combustion chamber to initiate the compression stroke in a cycle of operation. In order to assure that the fuel-air ratio of the mixture supplied to each supply chamber is substantially identical a dam is located between the mixing chamber and the common air supply. The dam intercepts and retains any fuel delivered to the mixing chamber but not communicated into the supply chamber thereby preventing fuel from adjacent mixing chambers being intermingled during a compression stroke. Thus, the fuel-air ratio for each piston remains substantially constant for each piston in this internal combustion engine.
In a two stroke cycle vertical shaft internal combustion engine having a series of horizontal bores, each bore having an entrance port and an exhaust port, a piston located in each bore to establish a combustion chamber and a fuel-air mixture supply chamber, said entrance port being connected to said supply chamber, a manifold system establishes a mixing chamber adjacent to each supply chamber, each mixing chamber being connected to an inedpendent fuel supply and to a common air supply, and a control valve located between each mixing and supply chamber to allow a fuel-air mixture to enter the supply chamber on movement of the piston toward the combustion chamber and to prevent communication from the mixing chamber to the supply chamber on movement of the piston toward the supply chamber and allow the fuel-air mixture in the supply chamber to flow through the entrance port into the combustion chamber when the piston has moved a predetermined distance, the improvement comprising:
Dependencies are inferred from the claim text.