Fuel injector with piezoelectric and hydraulically actuated need

Fluid sprinkling – spraying – and diffusing – Fluid pressure responsive discharge modifier* or flow... – Fuel injector or burner

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

2395334, 2395338, 2395339, 25112906, F02M 6120

Patent

active

058848487

ABSTRACT:
An improved fuel injector for providing precise control over injection timing, quantity and rate shape is provided which includes a piezoelectric actuator for compressing actuating fluid in an actuating fluid circuit which includes a fluid chamber positioned adjacent a needle valve element and fluidically separate from a fuel supply circuit for supplying high pressure fuel for injection. Actuating fluid pressure in the chamber acts on the needle valve element to initiate injection. A fuel pressure balancing device is provided for balancing the fuel pressure forces acting on the needle valve element while the element is in both the closed and open positions thereby permitting the piezoelectric actuator to more precisely and predictably control the rate of movement, and the extent of movement, of the needle valve element.

REFERENCES:
patent: 2959360 (1960-11-01), Nichols
patent: 4022166 (1977-05-01), Bart
patent: 4394964 (1983-07-01), Ecomard et al.
patent: 4637553 (1987-01-01), Kushida et al.
patent: 4649886 (1987-03-01), Igashira et al.
patent: 4728074 (1988-03-01), Igashira et al.
patent: 4784102 (1988-11-01), Igashira et al.
patent: 4803393 (1989-02-01), Takahashi
patent: 4909440 (1990-03-01), Mitsuyasu et al.
patent: 4943004 (1990-07-01), Takahashi
patent: 5419492 (1995-05-01), Gant et al.
patent: 5421521 (1995-06-01), Gibson et al.
patent: 5452858 (1995-09-01), Tsuzuki et al.
patent: 5463996 (1995-11-01), Maley et al.
patent: 5673669 (1997-10-01), Maley et al.
patent: 5697342 (1997-12-01), Anderson et al.
patent: 5720318 (1998-02-01), Nagarajan et al.

LandOfFree

Say what you really think

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

Rating

Fuel injector with piezoelectric and hydraulically actuated need does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fuel injector with piezoelectric and hydraulically actuated need, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel injector with piezoelectric and hydraulically actuated need will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2118302

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