Exhaust system of multi-cylinder internal combustion engine

Details Exhaust system of multi-cylinder internal combustion engine Exhaust system of multi-cylinder internal combustion engine

2005-06-07

2010-06-01

Denion, Thomas E (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S278000, C060S288000, C060S313000, C060S323000

Reexamination Certificate

active

07726119

ABSTRACT:
A plurality of upstream main exhaust passages extend from cylinders of an engine. A downstream main exhaust passage is connected to the upstream main exhaust passages. A main catalytic converter is mounted in the downstream main exhaust passage. A plurality of upstream bypass exhaust passages extend from the upstream main exhaust passages. Each upstream bypass exhaust passage has a sectional area smaller than that of the corresponding upstream main exhaust passage. A downstream bypass exhaust passage is connected to the upstream bypass exhaust passages and has a downstream end connected to the downstream main exhaust passage at a position upstream of the main catalytic converter. An auxiliary catalytic converter is mounted in the downstream bypass exhaust passage. A gas flow switching device is provided which is capable of forcing the exhaust gas from the cylinders of the engine to flow toward the upstream bypass exhaust passages when assuming a given operation position.

REFERENCES:
patent: 5072583 (1991-12-01), Urushihara et al.
patent: 5277026 (1994-01-01), Boll et al.
patent: 5433073 (1995-07-01), Duret et al.
patent: 2002/0062642 (2002-05-01), Dini et al.
patent: 101 51 530 (2003-04-01), None
patent: 0 584 350 (1994-03-01), None
patent: 1 188 909 (2002-03-01), None
patent: 3-083315 (1991-08-01), None
patent: 05-321644 (1993-12-01), None
patent: 07-077034 (1995-03-01), None
patent: 7-22016 (1995-04-01), None
patent: 07-22016 (1995-04-01), None
patent: 11-062563 (1999-03-01), None
patent: 11-343835 (1999-12-01), None
patent: 2002-213236 (2002-07-01), None
patent: WO 93/18285 (1993-09-01), None
Sungi I, et al., U.S. Appl. No. 11/295,728, dated Apr. 30, 2007, 11 pgs.
Sungi I, et al., U.S. Appl. No. 11/295,728, dated Jul. 10, 2008, 10 pgs.
Sungi I, et al., U.S. Appl. No. 11/295,728, dated Sep. 19, 2007, 11 pgs.
Sungi I, et al., U.S. Appl. No. 11/295,728, dated Oct. 4, 2006, 16 pgs.

Affiliated with

Also associated with

Rating

Exhaust system of multi-cylinder internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Exhaust system of multi-cylinder internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exhaust system of multi-cylinder internal combustion engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4156801