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US 4,738,110 AGranted
Diesel engine equipped with a mechanically driven charger
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHidenori Tateno
Life of this patent
Estimating the term…
Abstract
A diesel engine comprising an intake passage in which a turbocharger and a mechanically driven charger are arranged. A bypass passage bypassing the mechanically driven charger is provided, and a bypass valve is arranged in the bypass passage. When the engine is started, the mechanically driven charger is operated and the bypass valve is closed. When the engine is operating under a partial load after completion of the warm-up of the engine, the operation of the mechanically driven charger is stopped and the bypass valve is opened.
Claims28
A diesel engine comprising:
- a turbocharger driven by an exhaust gas of the engine;
- an intake passage;
- a mechanically driven charger arranged in said intake passage and mechanically driven by the engine;
- connection control means for controlling a mechanical connection between said mechanically driven charger and the engine;
- a bypass passage connected to said intake passage downstream of said mechanically driven charger;
- valve means controlling a bypass air flow flowing within said bypass passage;
- first detecting means for detecting a starting operation of the engine;
- second detecting means for detecting an operating state of the engine;
- and
- control means for controlling said connection control means and said valve means in response to output signals from said first detecting means and said second detecting means to connect said mechanically driven charger to the engine and shut off said bypass air flow when the engine is started or when the engine is operated in a predetermined first operating state, and to disconnect said mechanically driven charger from the engine and allow said bypass air flow when the engine is operating in a predetermined second operating state.
7 more elements
Dependencies are inferred from the claim text.