V-type engine

Details V-type engine V-type engine

2008-01-15

2010-02-23

Solis, Erick (Department: 3747)

Internal-combustion engines

Charge forming device

Auxiliary air or oxygen added to combustible mixture

C123S054400, C060S305000

Reexamination Certificate

active

07665449

ABSTRACT:
In a V-type engine, throttle devices are disposed between front and rear cylinders disposed in a V-shape, and an air cleaner is disposed above the throttle device. A secondary air pipe is connected to a secondary air entrance portion formed in an outer peripheral wall surface of each of the cylinders. A secondary air on-off valve is disposed below the throttle device, and the secondary air on-off valve is provided so as to be substantially accommodated in a V-bank space between the cylinders. A secondary air inlet of the secondary air on-off valve is connected to the air cleaner by the secondary air source pipe extended upward, a secondary air pipe for each cylinder is connected to the secondary air outlet for each cylinder, and the secondary air outlet for each cylinder is formed in the secondary air on-off valve.

REFERENCES:
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patent: 6311483 (2001-11-01), Hori et al.
patent: 6382197 (2002-05-01), Matsumoto
patent: 6439185 (2002-08-01), Tosaka et al.
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patent: 2005/0193725 (2005-09-01), Kaneshiro
patent: 2006/0065255 (2006-03-01), Hirayama et al.
patent: 2006/0157004 (2006-07-01), Gunji et al.
patent: 2008/0308082 (2008-12-01), Kisaichi et al.
patent: 2003-74319 (2003-03-01), None

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