Multi-channel, multi-phase flow metering valve

Fluid handling – Systems – Valves with separate – correlated – actuators

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C251S084000

Reexamination Certificate

active

07874315

ABSTRACT:
A multi-channel, multi-phase flow metering valve has multiple pintle valves for metering liquid media through each valve channel. The valve channels have venturi passageways that alone, or in cooperation with the pintles, cause the local pressure of the media to fall below its saturated vapor pressure and allow the liquid media to change phase. The cavitation creates a gaseous region, formed from one or many discrete cavities, in the media within valve channels that effectively isolates the pressures in the upstream and downstream parts of the valve channels to reduce the affects of input pressure fluctuations in the output media. The valve components, particularly the modules defining the venturi passageways, are made of a high-strength material to better resist pitting and other surface erosion from sonic shock associated with the collapse of the gaseous cavities.

REFERENCES:
patent: 215478 (1879-05-01), Pottle
patent: 1538207 (1925-05-01), Niedecken
patent: 1721954 (1929-07-01), Herst
patent: 2959541 (1960-11-01), Cleary
patent: 3430654 (1969-03-01), Mills
patent: 4211258 (1980-07-01), Switall
patent: 4356840 (1982-11-01), Friedland et al.
patent: 4782660 (1988-11-01), Domyan et al.
patent: 4948091 (1990-08-01), Satoh et al.
patent: 5368273 (1994-11-01), Dante
patent: 6016832 (2000-01-01), Vars et al.
patent: 6250602 (2001-06-01), Jansen
Brennen, Christopher E.; Cavitation and Bubble Dynamics; Chapter 1—Phase Change, Nucleation, and Cavitation; Copyright Oxford University Press 1995; Last Updated Dec. 1, 2000.
Brennen, Christopher E.; Cavitation and Bubble Dynamics; Chapter 2—Spherical Bubble Dynamics; Copyright Oxford University Press 1995; Last Updated Dec. 1, 2000.
Brennen, Christopher E.; Cavitation and Bubble Dynamics; Chapter 3—Cavitation Bubble Collapse; Copyright Oxford University Press 1995; Last Updated Dec. 1, 2000.
Brennen, Christopher E.; Cavitation and Bubble Dynamics; Chapter 6—Homogeneous Bubbly Flows; Copyright Oxford University Press 1995; Last Updated Dec. 1, 2000.

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

Multi-channel, multi-phase flow metering 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 Multi-channel, multi-phase flow metering valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-channel, multi-phase flow metering valve will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2681969

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