Electrically controlled pressure relief valve and system and...

Details Electrically controlled pressure relief valve and system and... Electrically controlled pressure relief valve and system and...

2007-11-20

2007-11-20

Cabrera, Zoila (Department: 2125)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Mechanical control system

C700S281000, C700S283000, C137S014000

Reexamination Certificate

active

11266016

ABSTRACT:
A system and method for controlling an electrically controlled pressure relief valve may use a soft position control loop to control the position of the valve. A pressure relief valve may also include a modified orifice shape to improve stability, to uniformly distribute the effective bandwidth over the valve operating range, and to provide a tunable default mode.

REFERENCES:
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patent: 5046397 (1991-09-01), Ezell et al.
patent: 5529152 (1996-06-01), Hamilton et al.
patent: 6128541 (2000-10-01), Junk
patent: 6276458 (2001-08-01), Malone et al.
patent: 6732033 (2004-05-01), LaPlante et al.
patent: 6948461 (2005-09-01), Kotwicki
International Search Report and Written Opinion dated Jan. 29, 2007 received in International Patent Application No. PCT/US05/39796 (9 pages).

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