Internal-combustion engines – Charge forming device – Including exhaust gas condition responsive means
Patent
1997-06-03
1998-08-11
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Including exhaust gas condition responsive means
123458, 123497, 123520, F02M 2508, F02M 3708, F02D 4114
Patent
active
057913218
ABSTRACT:
An fuel supplying apparatus for supplying a fuel to an internal combustion engine. The engine has a plurality of injectors for injecting fuel to the engine, a pump for supplying fuel from a fuel tank to the injectors and a fuel vapor treating device that collects fuel vapor generated in a fuel tank and treats the vapor without releasing it into the atmosphere. An electronic control unit (ECU) controls the injectors for adjusting an opening time period of the injectors depending on the running condition of the engine to control the amount of fuel to be injected from the injectors. The ECU also controls the pump for adjusting the amount of fuel to be discharged from the pump depending an the running condition of the engine to control the pressure of the fuel to be pumped to the injectors. The ECU reduces the opening time period of the injectors to reduce the amount of fuel to be injected from the injectors when the fuel vapor is supplied to the engine by the treating device. The ECU also reduces the amount of fuel to be discharged from the pump so as to further reduce the amount of fuel to be injected from the injectors.
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patent: 5143040 (1992-09-01), Okawa et al.
patent: 5586539 (1996-12-01), Yonekawa et al.
Argenbright Tony M.
Toyota Jidosha & Kabushiki Kaisha
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