Operating method for a hydraulic injection valve comprising...

Details Operating method for a hydraulic injection valve comprising... Operating method for a hydraulic injection valve comprising...

2003-09-03

2009-12-29

Benson, Walter (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S324000, C367S069000, C367S070000

Reexamination Certificate

active

07638923

ABSTRACT:
The invention relates to a method and a control unit for operating a hydraulic injection valve, which comprises at least one piezoelectric actuator (2), a displaceable component (3) and a hydraulic element (9) such as bearing or a transmission system. The use of a drive voltage (U) modifies the length of an actuator (2), which makes it possible to control the stroke of the displaceable component (a valve needle3). The inventive control unit (10) produces a polarizing voltage (UB) which pre-stresses the actuator (2) and whose polarization direction is opposite to the polarization direction of said actuator (2). Said invention makes it possible to obtain the greater modification of the length when the actuator (2) operates in the polarization direction than the drive voltage starts at 0 volts, as it was in practice before. Said invention makes it possible to reduce energy consumption.

REFERENCES:
patent: 4398204 (1983-08-01), Dietrich et al.
patent: 5036263 (1991-07-01), Yamada et al.
patent: 5986360 (1999-11-01), Gerken et al.
patent: 5988799 (1999-11-01), Abe et al.
patent: 6679474 (2004-01-01), Cotton et al.
patent: 6739575 (2004-05-01), Cotton et al.
patent: 2002/0048124 (2002-04-01), Kuwajima et al.
patent: 39 35 937 (1990-05-01), None
patent: 197 34 895 (1999-02-01), None
patent: 1 079 158 (2001-02-01), None

Affiliated with

Also associated with

Rating

Operating method for a hydraulic injection valve comprising... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Operating method for a hydraulic injection valve comprising..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Operating method for a hydraulic injection valve comprising... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4142057