Internal-combustion engines – Engine speed regulator – Having plural throttle valve structure
Reexamination Certificate
2007-12-04
2007-12-04
Solis, Erick (Department: 3747)
Internal-combustion engines
Engine speed regulator
Having plural throttle valve structure
C123S337000, C123S339270
Reexamination Certificate
active
11586529
ABSTRACT:
To improve an air bypass device in bypass air flow and designing freedom, a locking stepped part3,a bush inserting hole4,and a valve body drive mechanism inserting hole5are provided above an upper end2aof a valve body guiding hole2of an air control valve main body1,an air flow-in hole6is provided below a lower end2bof the valve body guiding hole2,and an inner peripheral wall2cof the valve body guiding hole2includes a plurality of air control grooves7a. . . extending downwardly from the locking stepped part3and being closed by an annular bush11on the locking stepped part3to form independent air distribution chambers12a. . . , which are connected to intake passages8b1. . . at the downstream side from the respective throttle valves of multiple throttle bodies T1. . . through bypass air passages15a . . . .
REFERENCES:
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patent: 5522362 (1996-06-01), Motose
patent: 5649512 (1997-07-01), Flanery et al.
patent: 5979388 (1999-11-01), Akagi et al.
patent: 6415765 (2002-07-01), Akagi et al.
patent: 6446599 (2002-09-01), Nakayasu
patent: 7263969 (2007-09-01), Sakamoto
patent: 2007/0068487 (2007-03-01), Sakamoto
patent: 2002-089415 (2002-03-01), None
Keihin Corporation
Solis Erick
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