Intake manifold for a vertical shaft engine

Details Intake manifold for a vertical shaft engine Intake manifold for a vertical shaft engine

1979-06-21

1980-10-14

Burns, Wendell E.

Internal-combustion engines

Multiple cylinder

Cylinders in-line

123 52M, 123 73R, 123 73A, 123 55R, 123445, 123470, 123591, F24C 116, F24C 1528, F24B 1304, F24C 1500

Patent

active

042274923

ABSTRACT:
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.

REFERENCES:
patent: 2630791 (1953-03-01), Kiekhaefer
patent: 2643510 (1953-06-01), Kiekhaefer
patent: 3020707 (1962-02-01), Post et al.
patent: 3269374 (1966-08-01), Conover
patent: 3851631 (1974-12-01), Kiekhaefer
patent: 4079706 (1978-03-01), Konig

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