Internal-combustion engines – Means to whirl fluid before – upon – or after entry into... – Having multiple oxidant inlet means
Patent
1979-12-17
1982-09-07
Myhre, Charles J.
Internal-combustion engines
Means to whirl fluid before, upon, or after entry into...
Having multiple oxidant inlet means
123432, 123442, F02B 1500
Patent
active
043478166
ABSTRACT:
Disclosed is a fuel/air mixture supply system for an internal combustion engine of the single-point fuel injection type wherein, the intake manifold system is formed with a first fuel/air supply passage which inspires atmospheric air and which has fitted generally at a midpoint thereof a fuel injection valve which injects fuel into the inspired air. The fuel/air mixture then proceeds to a first set of branched passages, each one of which conducts the fuel/air mixture to a cylinder of the engine. Further, there is provided a second air supply passage which inspires atmospheric air and which branches into a second set of branched passages, each one of which conducts air to a cylinder of the engine. The first fuel/air supply passage is smaller than the second air supply passage, and the first set of branched passages are smaller than the second set of branched passages. The flow of air/fuel mixture in the first fuel/air supply passage is controlled by a first throttle valve, and the flow of air in the second air supply passage and/or the second branched passages is controlled by a regulating means responsive to the operation of the first throttle valve, so as to be substantially zero when the first throttle valve is open an amount less than a certain predetermined amount, while, when the first throttle valve is opened greater than the certain predetermined amount, the flow is progressively increased.
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Inoue Mitsumasa
Kawamura Yoshihisa
Saito Masaaki
Sugo Yuko
Cross E. Rollins
Myhre Charles J.
Nissan Motor Company Limited
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