G - Physics – 01 – F
Patent
G - Physics
01
F
G01F 1/075 (2006.01) A01C 23/00 (2006.01) G01F 1/115 (2006.01)
Patent
CA 2239315
The present invention provides an apparatus and method for accurately controlling the amount of NH3 to be applied to a field by measuring the NH3 flow rate without condensing or cooling the NH3. The system includes a control station 12 on the vehicle with a tachometer 12A or a GPS system for providing a vehicle speed signal to a control panel 13. The control panel includes a toggle switch 17 for adjusting the opening or closing of a valve 52 in the flow line to regulate the flow through the system, although the control panel alternatively may automatically control the valve 52. The vehicle transports a tank 20 containing liquid NH3 and a tool bar 30 for distributing the NH3 to the soil. After flowing through the flow meter 40, 60, 130, the NH3 is conducted to the soil through a series of hoses, fittings, a distributor, and tubing. The flow meter transmits a signal to the control panel, which is converted to a corrected flow rate signal in response to a fixed value vaporization correction factor. The temperature of the NH3 is also measured to correct for density variations. An improved variable area meter 60, 130 uses a hall effect sensor 72 and a magnet 68 mounted on a rotatable vane shaft 70 to overcome problems with prior flow meters. The improved meter 60, 130 is ideally suited for measuring the fluid flow of a low temperature vaporization liquid, such as anhydrous ammonia, propane and butane.
Cessac Kevin J.
Nimberger Spence M.
Finlayson & Singlehurst
Pgi International Ltd.
LandOfFree
Method and apparatus for flow control of nh3 does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for flow control of nh3, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for flow control of nh3 will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1525671