A trailer-mounted pumping system includes a flatbed trailer having a generally flat deck surface, a pump, a batch controller, and a metering device in electronic communication with the batch controller, wherein the pump is configured to move a liquid from at least one tote supported by the generally flat deck surface to a location off-board the flatbed trailer, and the batch controller is configured to measure a volume of the liquid via the metering device. The pump, the metering device, and/or the batch controller may be disposed beneath the generally flat deck surface.

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.

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.

A liquid transfer apparatus and a control method thereof are provided. The liquid transfer apparatus includes a first auxiliary cover, a second auxiliary cover, a transfer tube and a breathing pipe. The first auxiliary cover is configured to cover a container for holding a liquid to be transferred; and the second auxiliary cover is configured to cover a target container. One end of the transfer tube runs through the first auxiliary cover and the other end runs through the second auxiliary cover. One end of the breathing pipe runs through the first auxiliary cover and the other end is configured to introduce nitrogen, or an inert gas, so that the liquid in the container for holding the liquid to be transferred can be transferred to the target container through the transfer tube.

The present system is directed in one embodiment to a vehicle with a cargo tank or reservoir and a pumping system, comprising a centralized controlled area network (CAN) in operative communication with a programmed computing device, e.g., a programmed logic controller (PLC) that may automate the pumping process output to automatically adjust based on demand and may further enable a pump flow rate that is infinitely adjustable to match output requirements. In other embodiments, the pump speed is no longer dependent upon engine speed or RPM. In other embodiments, the CAN may monitor for vapor at the pump inlet and automatically slow the pump speed until the vapor problem is resolved. Other embodiments may comprise the CAN integrating various vehicle and pumping systems to maximize safety and safety issue annunciations.

The present system is directed in one embodiment to a vehicle with a cargo tank or reservoir and a pumping system, comprising a centralized controlled area network (CAN) in operative communication with a programmed computing device, e.g., a programmed logic controller (PLC) that may automate the pumping process output to automatically adjust based on demand and may further enable a pump flow rate that is infinitely adjustable to match output requirements. In other embodiments, the pump speed is no longer dependent upon engine speed or RPM. In other embodiments, the CAN may monitor for vapor at the pump inlet and automatically slow the pump speed until the vapor problem is resolved. Other embodiments may comprise the CAN integrating various vehicle and pumping systems to maximize safety and safety issue annunciations.

The liquid material ejector has a liquid material supply port through which the liquid material is supplied, a nozzle for ejecting the liquid material, a valve block having a metering bore to be filled with the ejected liquid material and a liquid material supply channel communicating with the liquid material supply port, a selector valve having a first channel for allowing communication between the metering bore and the liquid material supply channel and a second channel for allowing communication between the metering bore and the nozzle, a plunger advancing and retracting in the metering bore, a plunger driving section for driving the plunger, a valve driving section for driving the selector valve, and a transmission section for transmitting driving power from the valve driving section to the selector valve. The plunger driving section, the valve driving section, and the valve block are arranged successively in the longitudinal direction.

The liquid material ejector has a liquid material supply port through which the liquid material is supplied, a nozzle for ejecting the liquid material, a valve block having a metering bore to be filled with the ejected liquid material and a liquid material supply channel communicating with the liquid material supply port, a selector valve having a first channel for allowing communication between the metering bore and the liquid material supply channel and a second channel for allowing communication between the metering bore and the nozzle, a plunger advancing and retracting in the metering bore, a plunger driving section for driving the plunger, a valve driving section for driving the selector valve, and a transmission section for transmitting driving power from the valve driving section to the selector valve. The plunger driving section, the valve driving section, and the valve block are arranged successively in the longitudinal direction.

An embodiment of the present invention provides a single-particle dispensing device, including: a first syringe containing particles and fluid therein; a particle separating body connected to an outlet end of the first syringe and separating the particles from the fluid; and a container connected to the particle separating body and containing the fluid separated in the particle separating body, wherein the particle separating body includes a rotating body provided with a particle collector collecting the particle and a fluid flow path formed therein, and a fixing body provided with a nozzle discharging the particle and rotatably accommodating the rotating body therein.

An embodiment of the present invention provides a single-particle dispensing device, including: a first syringe containing particles and fluid therein; a particle separating body connected to an outlet end of the first syringe and separating the particles from the fluid; and a container connected to the particle separating body and containing the fluid separated in the particle separating body, wherein the particle separating body includes a rotating body provided with a particle collector collecting the particle and a fluid flow path formed therein, and a fixing body provided with a nozzle discharging the particle and rotatably accommodating the rotating body therein.