Compression ignition internal combustion engine

Details Compression ignition internal combustion engine Compression ignition internal combustion engine

2006-06-06

2006-06-06

Huynh, Hai (Department: 3747)

Internal-combustion engines

Combustion chamber means having fuel injection only

Having a particular relationship between injection and...

C123S399000, C123S531000

Reexamination Certificate

active

07055495

ABSTRACT:
A compression ignition internal combustion engine includes a combustion chamber, an intake valve19a, intake port6, and an exhaust valve19b. The temperature and pressure in the combustion chamber are increased to self-ignite an air-fuel mixture with the compressive operation of a piston after closing of the intake valve19a. A fuel injection valve11injects pressurized air, serving as an ignition trigger factor, directly into the combustion chamber so that the air-fuel mixture under the expansion stroke of the piston is brought into an ignitable state. An ECU1controls the injection timing of the pressurized air depending on the ignition timing. The self-ignition timing can be controlled to a proper timing in a wide engine operating range with respect to a load and a revolution speed without changing the shape of the combustion chamber to a large extent.

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