Hydraulically driven pump-injector with hydromechanical...

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

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

F02M 47/02 (2006.01)

Patent

CA 2578808

Hydraulically driven pump-injector for diesel engines with locking device of the nozzle needle in which diesel fuel is used as acting fluid, comprises: a body; a pressure intensifier; a return mechanism for piston and plunger; a distributing device, and a nozzle unit. An additional cylindrical cavity is made in pump-injector body in the area adjoining the nozzle, a rod being disposed in said additional cavity whose one face is set against the face of the needle; and the return spring of the nozzle needle being disposed between the rod and the face of said additional cavity. Said additional cavity is constantly connected with the accumulator of actuating fluid. As a result, the force acting on the nozzle needle face increases ( approximately doubles) and the opening and the closing pressures of the nozzle needle increase accordingly, enabling an abrupt end of final injection phase and increasing the average injection pressure.

L'invention concerne un injecteur-pompe à commande hydraulique pour moteurs à combustion interne avec dispositif de blocage d'aiguille d'injection dans lequel le combustible est utilisé comme fluide moteur. Cet injecteur-pompe comprend un corps, un multiplicateur de pression, un mécanisme de retour pour piston et piston plongeur, un dispositif de distribution et une unité buse. Une cavité cylindrique additionnelle est formée dans le corps de l'injecteur-pompe dans la zone adjacente à la buse, une tige étant disposée dans cette cavité additionnelle, une face de cette tige venant buter contre la face de l'aiguille d'injection, et le ressort de retour de l'aiguille d'injection étant disposé entre la tige et la face de cette cavité additionnelle. Ladite cavité additionnelle est constamment reliée à l'accumulateur de fluide moteur. Par conséquent, la force agissant sur la face de l'aiguille d'injection augmente (double approximativement) et la pression d'ouverture et de fermeture de l'aiguille d'injection augmente en conséquence, ce qui permet de terminer brusquement la phase d'injection finale et d'augmenter la pression d'injection moyenne.

LandOfFree

Say what you really think

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

Rating

Hydraulically driven pump-injector with hydromechanical... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulically driven pump-injector with hydromechanical..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulically driven pump-injector with hydromechanical... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1946251

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