Piezoelectric valve

Details Piezoelectric valve Piezoelectric valve

2006-02-07

2006-02-07

Rivell, John (Department: 3753)

Fluid handling

With indicator, register, recorder, alarm or inspection means

Position or extent of motion indicator

C251S129060, C251S335300

Reexamination Certificate

active

06994110

ABSTRACT:
The valve comprises a mobile needle having a movement in the valve body which is controlled by an amplified piezoelectric actuator. A bellows, surrounding an intermediate zone of the needle, is integral at a first end with the valve body and at a second end with the needle so as to isolate the actuator from the pressure chamber. At least one flexible guide blade of the needle is fixed on the one hand to the valve body and on the other hand to the needle. This flexible guiding enables any part sliding with respect to another part, liable to generate wear or contaminating particles, to be avoided, except for the seat and needle.

REFERENCES:
patent: 4635683 (1987-01-01), Nielsen
patent: 4695034 (1987-09-01), Shimizu et al.
patent: 4796854 (1989-01-01), Ewing
patent: 4808874 (1989-02-01), Stahlhuth
patent: 4954799 (1990-09-01), Kumar
patent: 5031841 (1991-07-01), Schafer
patent: 6311950 (2001-11-01), Kappel et al.
patent: 6807875 (2004-10-01), Lebrun et al.
patent: 198 54 506 (2000-04-01), None
patent: 1 070 844 (2001-01-01), None
patent: 1 079 098 (2001-02-01), None
patent: 2 740 276 (1997-04-01), None
patent: 2740276 (1997-04-01), None

Affiliated with

Also associated with

Rating

Piezoelectric 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 Piezoelectric valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piezoelectric valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3635852