A quantitative essential oil dripping device which includes: N sealed essential oil containers for containing essential oil, wherein N is a positive integer greater than or equal to 1; N gas inlet tubes and N oil outlet tubes, which are all inserted into the N essential oil containers respectively, wherein in each of the essential oil containers, a gas outlet of the gas inlet tube is located above an inlet of the oil outlet tube; a gas pump arranged at gas inlets of the N gas inlet tubes; a throttle valve communicating the gas pump with the essential oil container; and a drip number detection module configured to detect the drip number of the essential oil dripped from an oil outlet of the oil outlet tube. During use, the gas pump is started, pressure is applied to the essential oil container through the gas pump, and the essential oil is driven to be dripped from the oil outlet tube under the combined action of the gas pump and the throttle valve, thereby achieving the dripping of the essential oil. The drip number of the essential oil dripped from the oil outlet of the oil outlet tube is detected through the drip number detection module, and the amount of the dripped essential oil is measured by recording the drip number, thereby accurately controlling the dripping of the essential oil. After the dripping of the essential oil is completed, the gas pump is stopped.

A mobile fuel monitoring system (MMU) is disclosed. The fuel monitoring system may be skid mounted and is configured to monitor fuel transfers between a fuel source and a vessel, such as a ship. The disclosed MMU is a stand-alone, self-contained unit that can be easily moved from place to place. The MMU is configured to monitor and remotely report custody transfers of fuel performed at any location. Parameters of the fuel transfer operation, such as the amount of fuel transferred, the flow rate, the fuel density, and fuel temperature can be monitored and alarms may be issued if any of the parameters are out of specification. The parameter values may be transmitted to a remote location, for example, via a satellite link.

A fueling station payment system having a fuel pump dispensing fuel to individual customers; a forecourt controller; a terminal disposed within said fuel pump, said terminal comprising a processing unit, a secure card reader, an encryption module and a wireless communication module; said terminal being in wireless communication with a payment processor such that encrypted secure payment information is transmitted between said terminal and said payment processor; said terminal being in wireless communication with the cloud such that encrypted secure payment information is transmitted between said terminal and said cloud; one or more point of sale systems which communicate with said forecourt controller using established protocols; and a gateway device, wherein said terminal communicates wirelessly with said gateway device, and wherein said terminal and said forecourt controller communicate with each other through said gateway device, and wherein said gateway device communicates with said forecourt controller using said established protocols of said point of sale systems.

The present invention provides a smart and automated system that is used for refueling of frac truck tanks during fracturing operations. The system is used to refuel the frac truck tanks which are constantly working in the high pressure and high-temperature zone for the fracturing of the wellbore to extract oil and gas. For safety, the system is equipped with explosion/fire free wiring system. The system incorporates inventive fuel valve to avoid the fuel clogging that increases the frac truck performance. The system employs artificial intelligence (AI) and cloud-based software for ease of operation and to maximize economic performance. The system is equipped with artificial intelligence and Programmable Logic Controller (PLC) software and incorporates charge pump and loop systems which maintain a predetermined pressure (in Pounds per Square Inch (PSI) unit) in each loop so as to maximize the performance and control function in the refueling system.

The present application discloses a metering system for calculating a real-time profit or loss of a gas station, including a metering module, a level gauge of the oil tank, and a communication management machine with a built-in data processing module; the metering module and the level gauge are respectively communicated with the communication management machine; the oil tank, an oil pipeline of the oil tank and an oil inlet of the fuel dispenser are respectively provided with a sensor array module for collecting density data of the oil therein; the sensor array module includes a plurality of oil density sensors; the sensor array modules are communicated with the communication management machine; the built-in data processing module receives and processes data from the metering module, the level gauge and the sensor array modules respectively.

A distribution station includes a mobile trailer that has outer walls that enclose at least one interior compartment and the outer walls contain at least an exterior shell and thermal insulation adjacent the exterior shell. There is a pump, at least one manifold fluidly connected with the pump, a plurality of reels, a plurality of hoses connected with different ones of the reels, and a plurality of valves on the mobile trailer. Each valve is situated between the manifold and a respective different one of the reels. A plurality of fluid level sensors are associated with different ones of the hoses. A controller is configured to individually open and close the valves responsive to the fluid level sensors.

A fueling station transaction system, method and retrofitting method, the system having a fuel pump dispensing fuel to individual customers; a forecourt controller; a terminal disposed within the fuel pump, the terminal comprising a processing unit, a secure card reader, an encryption module and a wireless communication module; the terminal being in wireless communication with a payment processor; one or more point of sale systems which communicate with the forecourt controller using established protocols; and a gateway device, wherein the terminal communicates wirelessly with the gateway device, and wherein the terminal and the forecourt controller communicate with each other only through the gateway device, and wherein the gateway device communicates with the forecourt controller using the established protocols of the point of sale systems. Also disclosed is a method of performing the payment transaction, and for retrofitting current fuel station systems to incorporate the system disclosed herein.

Method and system for measured dispending of a liquid to a target reservoir. An oval gear flow meter provides two pulses from different magnets. A pipe subsystem allows liquid from an above-ground reservoir measured through the oval gear flow meter to be controllably dispensed using a controllable valve. A processor module, upon receipt of a start-signal, opens the controllable valve and, until receipt of a stop-signal, computes a volume of the liquid dispensed by the system into the target reservoir by counting the pulses as a first and second counts. An adjustable volume-per-count value is computed with the count(s) to obtain the volume of liquid dispensed. The processor generates an error when a difference between the two counts is greater than a predetermined threshold set considering a target precision setting for the dispensing system.

The windshield washer fluid dispenser is a self-service station, that is capable of providing a user with high quality windshield washer fluid and the ability to utilize the windshield washer fluid manually. To accomplish this, the device includes a combination of components, that allows one to properly clean the windshield on one's vehicle without the need of an attendant. To accomplish this, the system includes a body, that houses a user-friendly dispenser container, a blend center unit that can instantaneously mix liquids to make a windshield washer solution, and a HID (human interface device) that can dispense the windshield washer solution according to users' needs. Further, the system includes a display device, a payment system, a sign board and necessary accessories that help with the smooth functioning of the system. Thus, the device utilizes simple, user-interactive, and cost-effective technologies to provide the windshield washer fluid dispenser self service station.

A fuel island redundant monitoring system having sensors of varying purpose to transmit data signals to dual remote monitoring stations. One monitoring site is a live monitoring station manned by personnel. The other monitoring station is a data receiving station utilizing unmanned machines, e.g., computers. The unmanned data station is capable of transmitting information to the manned monitoring station, to local fuel island managers and/or to local emergency responders, and/or to control equipment at the fuel island. The manned monitoring station is capable of transmitting commands or inquiries to the unmanned data station and/or to control equipment at the fuel island, and/or to local fuel island managers and/or to local emergency responders. Sensors may be dedicated to either the unmanned data station or the manned live monitoring station, or may send data to both stations.