The ammonia is placed in a vessel under sufficient pressure to maintain a substantial portion of the ammonia in a liquid form. By maintaining the ammonia in a liquid form, uniform and accurately controlled flow rates can be dispensed from the dispensing tubes.Ībstract: The present invention is generally directed to a system and to a process for dispensing a volatile liquid fertilizer and particularly ammonia into a field. In particular, the flow control devices allow ammonia to be dispensed from the system while maintaining sufficient back pressure and temperature within the distribution manifold to maintain the ammonia in a liquid form. Furthermore, the outlet flow of each constant pressure rate control device is made to vaporize nearby the inlet flow path to create a heat exchange effect thereby cooling the inlet flow. A constant pressure flow rate control device is placed at each dispensing tube for metering the amount of ammonia fed to the soil. From the pressurized vessel, the ammonia is fed to a distribution manifold where it is ultimately injected into a soil through a plurality of dispensing tubes. Publication/Patent Number: US20050076818A1Ībstract: A system and process for dispensing a liquid agrochemical such as ammonia into a field is disclosed. The processor also actuates each of the agricultural spray system components such as the spray nozzles to selectively control each of the nozzles or a designated group of the nozzles. The processor conveys information to an operator regarding the agricultural spray system component based on the sensed vibrations. The networked delivery system also includes a control area network with a computer processor in communication with the vibration sensors. When the solenoid valves are attached to pressure-atomization spray nozzles, control over spray pattern and droplet size is further achieved.Ībstract: A networked delivery system and method for controlling operation of a spraying system includes nozzles for emitting an agrochemical according to a predetermined spray pattern and flow rate vibration sensors located adjacent an agricultural spray system component to sense vibrations of the agricultural spray system component, such as spray nozzles.
This wide range of pressure control indirectly allows the flow-controlled liquid application system to operate over a wider range of flow control, yielding indirect benefits to performance and productivity. This pulsing solenoid valve technique preserves a high degree of accuracy and uniformity through a wide range of pressure control. Direct acting solenoid valves are pulsed at varying frequencies and duty cycles0000change the resistance to flow encountered by the flow-controlled liquid application system. Abstract: An electrically-actuated variable pressure control system for use with flow-controlled liquid application systems. Since 1956, Raven has designed, produced, and delivered exceptional solutions, earning the company a reputation for innovation, product quality, high performance, and unmatched service. Raven is a leader in precision agriculture, high-performance specialty films, and lighter-than-air technologies. Raven Industries (NASDAQ:RAVN) is dedicated to providing innovative, high-value products and solutions that solve great challenges throughout the world. “We look forward to continuing to deliver our suite of solutions to the growing precision agriculture industry.” “Raven is pleased with the results of this settlement,” said Brian Meyer, Division Vice President and General Manager of Raven Applied Technology. The parties agreed to a mutually acceptable, no-fault business solution. SIOUX FALLS, S.D., Ma(GLOBE NEWSWIRE) - Raven Industries (NASDAQ:RAVN) announced today that the patent infringement lawsuit against the company and CNH Industrial brought by Capstan Ag Systems related to Raven’s Hawkeye® Nozzle Control System and CNH Industrial’s AIM Command FLEX™ sprayer system has been settled between the parties.
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