In general, intelligent fuel dispensers are provided. In at least some implementations, an intelligent fuel dispenser can determine customer identities and/or other characteristics and provide customized fueling sessions based on the determined customer identities and/or other characteristics. In at least some implementations, the fuel dispenser includes a touchless interface allowing customers to complete fueling sessions with minimal physical contact with the fuel dispenser.

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 distribution station includes an adjustable feed network that connects first and second pumps with first and second manifolds. The network is switchable between first and second configurations. In the first configuration a first pump is fluidly connected with the first manifold and fluidly disconnected from the second manifold. Concurrently, the second pump is fluidly connected to the second manifold and is fluidly disconnected from the first manifold. In the second configuration the first pump is fluidly connected with the second manifold and fluidly disconnected from the first manifold, and the second pump is fluidly disconnected from the first and second manifolds.

A distribution station includes an adjustable feed network that connects first and second pumps with first and second manifolds. The network is switchable between first and second configurations. In the first configuration a first pump is fluidly connected with the first manifold and fluidly disconnected from the second manifold. Concurrently, the second pump is fluidly connected to the second manifold and is fluidly disconnected from the first manifold. In the second configuration the first pump is fluidly connected with the second manifold and fluidly disconnected from the first manifold, and the second pump is fluidly disconnected from the first and second manifolds.

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 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.

In general, intelligent fuel dispensers are provided. In at least some implementations, an intelligent fuel dispenser can determine customer identities and/or other characteristics and provide customized fueling sessions based on the determined customer identities and/or other characteristics. In at least some implementations, the fuel dispenser includes a touchless interface allowing customers to complete fueling sessions with minimal physical contact with the fuel dispenser.

An improved fluid transfer accuracy, information collection, and overall management. A system may utilize a pump to transfer fluid from a source to a target vessel, a meter for measuring an amount of fluid transferred, a density meter to detect actual fluid density, and a control unit to determine actual fluid transfer amount based on density. As an example, a fluid flow meter can be coupled with a flow conduit to determine fluid volume, along with the density meter to detect real-time density of transferred fluid. During a fluid transfer event, such as aircraft refueling, LPG fueling, or other refined fuels or valuable liquids, fluid volume can be converted to fluid weight in real-time based on actual density. The real-time fluid weight can be used to determine if a target fluid weight has been reached, and fluid flow can be shut off at the appropriate time.

Indicating a fuel level in a fuel tank of a vehicle during a refueling event may include illuminating exterior vehicle lighting to indicate the fuel level in the fuel tank, adding fuel to the fuel tank, and as the fuel is added to the fuel tank, changing the illumination of the exterior vehicle lighting to indicate the current fuel level in the fuel tank.

Indicating a fuel level in a fuel tank of a vehicle during a refueling event may include illuminating exterior vehicle lighting to indicate the fuel level in the fuel tank, adding fuel to the fuel tank, and as the fuel is added to the fuel tank, changing the illumination of the exterior vehicle lighting to indicate the current fuel level in the fuel tank.