Two-stage high flow purge valve

F - Mech Eng,Light,Heat,Weapons – 02 – M

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

F02M 33/02 (2006.01) F02M 25/08 (2006.01)

Patent

CA 2055571

A two-stage high flow purge valve for an evaporative emission system of a vehicle. The valve body contains two valves for controlling fluid flow through separate parallel flow paths in the valve body. A fast-acting, pulse width modulated solenoid valve responsive to an electrical control signal from the engine control computer precisely controls flow through a low flow path, and a vacuum-responsive valve controls flow through a high flow path in accordance with the level of manifold vacuum at the engine intake. A third valve member is provided to block flow through the high flow path when the engine is off and the manifold vacuum is zero. Means for calibrating both the solenoid valve and the vacuum-responsive valves are also provided.

Cette invention concerne une soupape de purge bi-étagée à haut débit pour système de contrôle de l'évaporation de carburant d'un véhicule. Le corps de soupape comporte deux clapets servant à régler le flux de fluide dans deux passages parallèles séparés du corps de soupape. Un clapet électromagnétique à action rapide modulée par la durée des impulsions, asservi à un signal électrique provenant d'un ordinateur de gestion du moteur, assure le réglage fin du débit dans le passage inférieur tandis qu'un clapet commandé par dépression règle le débit dans le passage supérieur en fonction du vide régnant dans le collecteur d'admission du moteur. Un troisième clapet sert à bloquer le passage supérieur lorsque le moteur est fermé et le vide dans le collecteur d'admission, nul. L'invention prévoit également un moyen d'étalonnage du clapet électromagnétique et du clapet commandé par dépression.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Two-stage high flow purge valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two-stage high flow purge valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-stage high flow purge valve will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1505384

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.