F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
F02M 51/00 (2006.01) F02D 31/00 (2006.01) F02D 41/12 (2006.01) F02D 41/34 (2006.01) F02M 69/04 (2006.01) F02D 41/10 (2006.01) F02D 41/24 (2006.01)
Patent
CA 2437337
There will be provided a fuel injection system for an internal combustion engine capable of supplying, in structure in which fuel injection valves are arranged on the upstream side and on the downstream side from the throttle valve respectively, an adequate quantity of fuel into the combustion chamber all the time without fuel adhering to and remaining at the throttle valve even when the throttle valve is abruptly enclosed. On the basis of plural parameters including the throttle opening .theta.TH and the engine speed NE, there are included: means 101, 102, 105 for determining each injection quantity of the upstream and downstream fuel injection valves, means 5 for detecting a rate of change .DELTA..theta.TH of the throttle opening in the injection-valve closing direction, means 104a for stopping fuel injection due to the upstream fuel injection valve when the rate of change .DELTA..theta.TH is large, and means 104b for reducing the injection quantity from the downstream fuel injection valve when the fuel injection of the upstream injection valve is stopped.
Watanabe Tsuguo
Yuhara Tomomi
Dennison Associates
Honda Giken Kogyo Kabushiki Kaisha
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