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US 4,727,719 AGranted
Apparatus for controlling inlet air flow in a turbocharged internal combustion engine
AssigneeToyota Jidosha Kabushiki Kaisha
InventorKoichi Mizutani
Life of this patent
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Abstract
An apparatus for controlling inlet air flow in an internal combustion engine having a turbo-supercharger which includes an air compressor connected to a combustion chamber through two intake passages. An air flow control valve is provided in one of the intake passages and is closed while the engine is running in the accelerating transitional condition and until the pressure of the compressed air pressure reaches a predetermined value. At the same time, the ignition timing is delayed.
Claims7
An apparatus for controlling inlet air flow in an internal combustion engine having a turbo-supercharger;
- said turbo-supercharger having a turbine driven by a pressure of an exhaust gas and an air compressor actuated by said turbine and connected to a combustion chamber of said engine through at least two intake passages so that inlet air compressed thereby is supplied to said combustion chamber, said engine having a means for controlling ignition timing;
- wherein said apparatus comprises:
- an air flow control valve provided in one of said intake passages;
- means for detecting an accelerating transitional condition of said engine;
- means for detecting a pressure of inlet air compressed by said air compressor;
- means for closing said air flow control valve and delaying an ignition timing while said engine is running in the accelerating transitional condition and until a pressure of the compressed air reaches a predetermined value.
3 more elements
Dependencies are inferred from the claim text.