Engine with progressive dual bore electronic throttle body

Details Engine with progressive dual bore electronic throttle body Engine with progressive dual bore electronic throttle body

2008-10-21

2010-06-15

Kwon, John T (Department: 3747)

Internal-combustion engines

Engine speed regulator

Having plural throttle valve structure

C123S376000, C123S399000, C123S400000

Reexamination Certificate

active

07735467

ABSTRACT:
An engine wherein a progressive throttle body includes two side by side throttle bores with throttle blades of equal size. A primary throttle opens from closed to an idle position with slowly increasing flow providing excellent idle and low engine speed air control. A secondary throttle opens slightly after the idle airflow position of the primary throttle and then opens more quickly, equaling the primary throttle opening near half throttle. Thereafter, the throttles open together, raising the airflow to maximum when both throttles are fully open. Both throttles are driven by a single electronically controlled motor or other actuator through two gearboxes that provide the varying flow curves. Throttle position sensors on both throttle shafts feed back throttle positions to an electronic controller to provide needed data for electronic throttle control in response to throttle commands. Additional features are disclosed.

REFERENCES:
patent: 5036816 (1991-08-01), Mann
patent: 5967861 (1999-10-01), Ozawa et al.
patent: 7066142 (2006-06-01), Hanasato
patent: 7201141 (2007-04-01), Rauch et al.
patent: 7219652 (2007-05-01), Ino et al.
patent: 7543563 (2009-06-01), Dunn
patent: 2008/0184958 (2008-08-01), Sato et al.

Affiliated with

Also associated with

Rating

Engine with progressive dual bore electronic throttle body does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Engine with progressive dual bore electronic throttle body, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine with progressive dual bore electronic throttle body will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4245747