Internal-combustion engines – Combustion chamber means having fuel injection only – Having a particular relationship between injection and...
Reexamination Certificate
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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Kihara Yuusuke
Nogi Toshiharu
Oosuga Minoru
Shiraishi Takuya
Yamaoka Shiro
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