Control device for supercharged engine

Details Control device for supercharged engine Control device for supercharged engine

2006-08-29

2006-08-29

Trieu, Thai-Ba (Department: 3748)

Internal-combustion engines

Multiple cylinder

Cylinders in-line

C060S601000, C060S620000, C123S305000

Reexamination Certificate

active

07096833

ABSTRACT:
In a pair of preceding and following cylinders whose exhaust and intake strokes overlap each other, intake air supplied to the preceding cylinder (2A,2D) is supercharged by a turbocharger (23) to produce combustion at a “lean” air-fuel ratio in the preceding cylinder (2A,2D), and burned gas discharged from the preceding cylinder (2A,2D) is introduced into the following cylinder (2B,2C) through an intercylinder gas channel (22). Combustion in the following cylinder (2B,2C) is made at an air-fuel ratio equal to or smaller than the stoichiometric air-fuel ratio by supplying fuel to the burned gas of a “lean” air-fuel ratio introduced from the preceding cylinder (2A,2D), and gas discharged from the following cylinder (2B,2C) is led to an exhaust passage (20) provided with a three-way catalyst (30).

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Miyoshi N et al.: “Development of New Concept Three-Way Catalyst for Automotive Lean-Burn Engines” SAE Technical Paper Series, Society of Automotive Engineers, Warrendale, PA, US, 1995, pp. 1361-1370.

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