Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1978-03-17
1979-07-24
Myhre, Charles J.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
1375278, 261 44A, F02M 3900, F16K 1503
Patent
active
041619323
ABSTRACT:
A fuel injection system for externally ignited internal combustion engines including a device for injecting fuel into an air stream and an air measuring device comprising a valve having an airfoil portion. The air measuring valve is pivotably mounted within the suction tube of the engine, thereby exposing the air measuring valve to the air stream flowing through the suction tube. The air measuring valve is exposed to a combination of forces. One of the forces is an impedance induced force developed in accordance with the principle associated with impedance type valves and as a function of the pressure prevailing in front of and behind the air measuring valve when viewed in the direction of flow of the air stream in the suction tube. The other force is a lift force and is developed in accordance with the airfoil principle and as a result of an air flow about the airfoil portion of the air measuring valve. The impedance induced force occurs when the air flow through the suction tube is small, whereas when the air flow through the suction tube is large, the predominant force is the lift force developed in accordance with the airfoil principle.
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Greigg Edwin E.
Myhre Charles J.
Reynolds David D.
Robert & Bosch GmbH
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