Exhaust pipe collecting structure of multiple cylinder...

Details Exhaust pipe collecting structure of multiple cylinder... Exhaust pipe collecting structure of multiple cylinder...

2007-10-30

2007-10-30

Nguyen, Tu M. (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Exhaust gas or exhaust system element heated, cooled, or...

C060S320000, C060S323000

Reexamination Certificate

active

10622315

ABSTRACT:
An exhaust pipe collecting structure for a multi-cylinder engine unit having multiple cylinders including a first exhaust pipe group and a second exhaust pipe group, each of which has two exhaust pipes selected from four exhaust pipes respectively connected to the four cylinders; a first exhaust sub-collecting pipe cast integrally with the first exhaust pipe group, a second exhaust sub-collecting pipe cast integrally with the second exhaust pipe group, a first joint portion located at a downstream end portion of the first exhaust sub-collecting pipe, and a second joint portion located at a downstream end portion of the second exhaust sub-collecting pipe.

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