Aspects of the disclosure include providing additional sources of water, and additional means for delivering the additional water, as needed in a fire emergency. A system in accordance with an aspect of the present disclosure provides pumping means, conduit for delivering water from a local source to the pump, and conduit for delivering the water as needed to fight a fire.

Aspects of the disclosure include providing additional sources of water, and additional means for delivering the additional water, as needed in a fire emergency. A system in accordance with an aspect of the present disclosure provides pumping means, conduit for delivering water from a local source to the pump, and conduit for delivering the water as needed to fight a fire.

An integrated, portable, battery-powered, variable-pressure electric liquid pump and power emergency station including a remote wireless communication unit located remotely from and in wireless communication with the emergency station to improve wireless reception in the integrated, portable, battery-powered, variable-pressure electric liquid pump and power emergency station.

The method of maintaining a first flow rate through a first valve in a fluid delivery system, the fluid delivery system including a and a plurality of fluid valves in fluid communication with the pump, and a controller controlling the pressure generated by the pump and the position of the plurality of valves. The method includes providing the first flow rate of a fluid pressurized by the pump through the first valve, receiving a request for a second flow rate of the fluid through a second valve, determining a predicted effect on the first flow rate based on the request, adjusting at least one of the position of the first valve and the pressure generated by the pump to maintain the first flow rate based on the predicted effect, and adjusting the position of the second valve to provide the second flow rate of the fluid through the second valve.

The method of maintaining a first flow rate through a first valve in a fluid delivery system, the fluid delivery system including a and a plurality of fluid valves in fluid communication with the pump, and a controller controlling the pressure generated by the pump and the position of the plurality of valves. The method includes providing the first flow rate of a fluid pressurized by the pump through the first valve, receiving a request for a second flow rate of the fluid through a second valve, determining a predicted effect on the first flow rate based on the request, adjusting at least one of the position of the first valve and the pressure generated by the pump to maintain the first flow rate based on the predicted effect, and adjusting the position of the second valve to provide the second flow rate of the fluid through the second valve.

A portable fluid pump comprises a tank, a positive displacement pump comprising a fluid inlet and outlet, and an electric motor that drives the positive displacement pump, wherein the electric motor is a brushless variable speed electric motor operating at 110 volts or less. A conduit diverts fluid pumped by the positive displacement pump back into the tank and an actuated valve assembly controls fluid flow through the conduit and, therefore, a pressure of fluid flow through the fluid outlet. A pair of sensors measure, respectively, a pressure and a flow rate of fluid flow through the fluid outlet. A system controller receives a target fluid pressure and fluid flow rate and adjusts a throttle position of the actuated valve assembly and a speed of the electric motor such that pressure and flow rate readings from the sensors substantially match, respectively, the target fluid pressure and fluid flow rate.

A firefighting monitor that has a first section, a second section joined to the first section by a first pivot connection, and a plurality of ball bearings positioned in the first pivot connection between a pair of bearing seats. Wherein, the bearing seats define an arc of contact with each of the plurality of ball bearings, the center of the arc of contact defining a tangent angled with respect to a flow axis defined by the first pivot connection.

An extinguishing device and extinguishing method, including a dispensing device and an extinguishing agent supply. The dispensing device has a pump device and a nozzle device in order to dispense an extinguishing agent. The extinguishing device features the extinguishing agent supply including at least one bag device having a flexible wall.

An extinguishing device and extinguishing method, including a dispensing device and an extinguishing agent supply. The dispensing device has a pump device and a nozzle device in order to dispense an extinguishing agent. The extinguishing device features the extinguishing agent supply including at least one bag device having a flexible wall.

The utility model discloses a structure capable of transforming any motor vehicle into a drainage pump vehicle, comprising a motor vehicle, a chassis, a hydraulic pump/battery, a hydraulic hose/wire, a hydraulic motor/electric motor, a hydraulic oil tank, a pump, a lifting platform, and a quick water outlet connector. The motor vehicle is any motor vehicle powered by fuel or battery. The pump is any centrifugal pump or volumetric pump. The hydraulic motor/electric motor, the hydraulic hose/wire, the hydraulic oil tank, the pump, the lifting platform, and the quick water outlet connector are installed below the vehicle chassis. The pump is installed above the lifting platform, and forms a drainage working unit together with the lifting platform. In the utility model, without adding additional power, the space below the vehicle chassis and the power system of the vehicle are fully utilized, thereby improving the integration capability and function diversification of the motor vehicle, to maximize the functions of the motor vehicle with the smallest cost increase.