Internal-combustion engines – Four-cycle
Reexamination Certificate
2005-08-16
2005-08-16
Mohanty, Bibhu (Department: 3747)
Internal-combustion engines
Four-cycle
C123S184260, C123S184490, C123S184590
Reexamination Certificate
active
06928980
ABSTRACT:
A control device switches an engine between normal operation mode and special operation mode. In the normal operation mode, an independent cylinder configuration is formed to produce combustion independently in individual cylinders. In the special operation mode, a two-cylinder interconnect configuration is formed so that burned gas discharged from preceding cylinders currently in an exhaust stroke is introduced into following cylinders currently in an intake stroke through intercylinder gas channels, a lean mixture having a high air-fuel ratio is combusted in the preceding cylinders, and a mixture produced by supplying fuel to the burned gas is combusted in the following cylinders. When the engine is switched between the special operation mode and the normal operation mode, the control device selects transitional operation mode, in which the two-cylinder interconnect configuration is formed, and interrupts combustion in the preceding cylinders while producing combustion in the following cylinders by compression ignition.
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U.S. Patent Application No. 10/859,605 filed Jun. 3, 2004.
Araki Keiji
Hayashi Takayoshi
Nishimoto Toshiaki
Yamakawa Masahisa
Mazda Motor Corporation
Mohanty Bibhu
Nixon & Peabody LLP
Studebaker Donald R.
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