System for suppressing noise due to exhaust gas from motor vehic

Details System for suppressing noise due to exhaust gas from motor vehic System for suppressing noise due to exhaust gas from motor vehic

1989-01-17

1990-02-20

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Pulsed, timed, tuned or resonating exhaust

181236, 181239, 181254, 181265, F02B 2702, F01N 700

Patent

active

049015281

ABSTRACT:
In an automotive vehicle installed with a V-6 engine, engine revolution speed and engine load are detected and a selector valve provided in a silencer is normally closed but it is opened when the engine revolution speed exceeds a predetermined engine revolution speed value when the 3rd order component of exhaust sound coincides with a longitudinal resonance frequency within a vehicle cabin when the vehicle is at acceleration. The selector valve which is normally closed is opened when the engine revolution speed exceeds a second predetermined engine revolution speed value when the 1.5th order component of the exhaust sound coincides with the longitudinal resonance frequency.

REFERENCES:
patent: 4665692 (1987-05-01), Inaba

Affiliated with

Also associated with

Rating

System for suppressing noise due to exhaust gas from motor vehic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for suppressing noise due to exhaust gas from motor vehic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for suppressing noise due to exhaust gas from motor vehic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1607618