Abstract: A metering system for a fuel atomizer includes a housing having a fuel inlet and an oxidizer inlet arranged coaxially, and an oxidizer metering device having a plurality of oxidizer channels, an oxidizer flow controller, and a fuel metering device. The oxidizer channels are spaced apart circumferentially in the housing and are arranged angled in at least one of a radially inward direction and a tangential direction to create a swirl of oxidizer flow in a mixing chamber of the fuel atomizer. The oxidizer flow controller is configured to control flow of oxidizer from the oxidizer inlet to the plurality of oxidizer channels. The fuel metering device is configured to control fuel flow from the fuel inlet to the mixing chamber.

Abstract: Provided is a fuel injection valve capable of stroking a valve body in two stages of large and small strokes and improving responsiveness of a valve opening operation. Therefore, a first mover 201 is attracted to a magnetic core 107. A second mover 202 is formed separately from the first mover 201, and is attracted to the magnetic core 107 on an inner diameter side of the first mover 201. A valve body 101 has a flange portion 101a on an upstream side of the second mover 202. A spacer 213 forms a gap (void g1) in an axial direction between the flange portion 101a and the second mover 202 in a valve closed state.

Abstract: An atomizer includes an atomizer body with a plurality of air passages defined therethrough from an upstream end of the atomizer body to a downstream end thereof. The air passages together define an air circuit through the atomizer body. A fuel circuit is defined in the atomizer body extending from a fuel inlet to a respective fuel outlet opening into each air passage. The air passages can be arranged circumferentially about a central axis defined by the atomizer body. The fuel circuit can include a manifold extending circumferentially about the atomizer body in fluid communication with a fuel opening in each respective air passage.

Abstract: A fire apparatus includes an engine, a fluid delivery system, and a controller. The fluid delivery system includes a first pump that provides a first fluid output at a first pressure, and a second pump positioned downstream of and coupled to the first pump in a serial arrangement. The second pump is driven by the engine. The second pump provides a second fluid output at a second pressure. During a first mode, the first fluid output is dischargeable from a low pressure discharge. During a second mode, the second fluid output is dischargeable from a first high pressure discharge and/or a second high pressure discharge, the engine operates at a first set point when the second fluid output is discharged from the first high pressure discharge, and the engine operates at a second set point when the second fluid output is discharged from the second high pressure discharge.

Abstract: A sprinkler assembly that includes a deflector assembly that translates with respect to the sprinkler frame upon actuation of the sprinkler from an unactuated state. The sprinkler frame includes a support member having an annular member spaced from the outlet to limit or control the axial translation of the deflector assembly relative to the outlet. Moreover, the annular member includes a region to support a closure assembly and thermally responsive trigger assembly under a fluid static load. A cover plate assembly includes a flexible annular wall to allow the cover plate assembly to be pushed on and held about the annular member of the sprinkler frame.

Abstract: A dual-chamber fire extinguisher includes an upper chamber in which a high pressure compressed gas is stored together with an extinguishing agent, a lower chamber in which a high pressure compressed gas is stored, a cylinder section provided between the upper chamber and the lower chamber, the cylinder section having an injection hole and an orifice prior to the injection hole on the basis of a flow direction of the extinguishing agent, a piston section provided inside the cylinder section and operated to block or open the orifice, and a solenoid-type valve unit provided in the lower chamber and operated to discharge a high pressure compressed gas stored in the lower chamber.

Abstract: A fire suppression apparatus for a vehicle includes a sensor for detecting a condition of an object mounted in the vehicle, a controller configured to determine whether the condition of the object mounted in the vehicle, which is detected by the sensor, satisfies a predetermined criterion for determining outbreak of fire and to output a control signal for suppression of the fire when the condition of the object satisfies the predetermined criterion, and a spread bag apparatus mounted in the vehicle, which is configured to unfold a collapsed spread bag toward the object in response to the control signal from the controller such that the unfolded spread bag hermetically covers the object, thereby suppressing fire at the object.

Abstract: A system for dispensing flame retardant foam on the exterior of a structure. The structure has an opening that enables distribution of flame retardant foam onto the roof. The system includes a foam distribution system having a foam expansion chamber and a roof plenum for delivery through the roof opening. Foam solution and compressed air are combined in a conduit and supplied to the foam expansion chamber. The structure may have at least one wall. In that case, the system may have a wall plenum for delivery of flame retardant foam from the foam expansion chamber through a first wall-associated opening. Each such wall will have an opening associated with the wall that enables distribution of flame retardant foam onto that wall.

Abstract: An electrostatic atomizer can include a paint supply path configured to supply paint to a paint discharge section; and a high voltage supply path configured to supply a high voltage to a discharge electrode, wherein the discharge electrode comprises a semi-conductive material, and wherein the high voltage supply path includes a high resistance near the discharge electrode, and is electrically segregated from the paint supply path.

Abstract: It is suggested to provide a line marking device having a GNSS receiver or prism for a robotic total station. The line marking device further has at least one spray nozzle and a comparator adapted to compare a detected location to a predetermined pattern. The comparator calculates a location and/or a direction error. Further the line marking device has a prompting device for providing steering information to a user. The provided information is the location and/or direction error. The at least one spray nozzle and the GNSS receiver or the prism are in a fixed spatial relation to a connecting element, which is connected or connectable to an unmovable receiving element of a cart.

Abstract: A fire protection system that includes a fluid supply and a fluid delivery apparatus. The fluid delivery apparatus receives fluid from the fluid supply and delivers a protectant solution to a building to prevent the building from catching fire. The fluid delivery apparatus includes an expansion chamber having an inlet for receiving fluid from the fluid supply, and an outlet where the protectant solution exits the expansion chamber. The fluid delivery apparatus also includes a resource line in fluid communication with the expansion chamber to provide a flame resistant substance to the expansion chamber from a reservoir. Further, the fluid delivery apparatus includes a vent line in fluid communication with the reservoir and the expansion chamber, a pressure difference between the vent line and the resource line causes the fluid in the vent line to push the flame resistant substance from the reservoir to the expansion chamber via the resource line. A method of installing the fire protection system on a building.

Abstract: A fire extinguishing system for a vehicle includes a fire detection device outputting a fire detection signal in response to detecting a fire and is installed in a predetermined space of the vehicle. A controller outputs a control signal for spraying fire extinguishing agent when the fire detection signal is received from the fire detection device. An air tank stores compressed air and a fire extinguishing agent cylinder is connected to the air tank through an air hose, is filled with the fire extinguishing agent, and is operated to discharge the fire extinguishing agent by the compressed air, supplied from the air tank through the air hose, by the control signal. A spray nozzle assembly is connected to the fire extinguishing agent cylinder through a fire extinguishing agent hose and sprays the fire extinguishing agent being supplied, from the fire extinguishing agent cylinder, through the fire extinguishing agent hose.

Abstract: A liquid reductant injector nozzle includes a first portion defining a hollow cylindrical static chamber, in fluid communication with second portion defining a hollow frustoconical converging section, which is in turn in fluid communication with a sharp edged type discharge orifice. The hollow cylindrical static chamber is in reductant receiving communication with a reductant source, and has a first and second circular opening having equal diameters. The second circular opening is downstream of the first circular opening. The hollow frustoconical converging section is in reductant receiving communication with the hollow cylindrical static chamber via the second circular opening. Reductant received from the reductant source is discharged through the discharge orifice. A sidewall of the hollow cylindrical static chamber and a frustum side of the frustoconical converging section define an angle of convergence of the liquid reductant injector nozzle relative to a plane of the second circular opening.

Abstract: In a sanitary outlet unit (1), it is provided that a contact surface (6) is formed on a valve element (4) which is adjustable between an open position and a closed position in a flow path (2), which contact surface (6), in the open position, covers a corresponding, stationary counterpart surface (7) and, in the closed position, frees said counterpart surface (7), such that the valve element (4) is automatically held in the open position by the pressure in the flow path and returns to the closed position in the event of a pressure drop (cf. FIG. 1).

Abstract: A sprinkler assembly guard includes a base, a plurality of protective members, and at least one clip member. The base has a plurality of base members centered about a central axis. Each of the protective members having a first portion radially spaced from the central axis and a second portion affixed to one of the base members and extending radially toward the central axis, the first portions of the plurality of protective members being angularly spaced about the central axis to define a cage volume for housing a sprinkler assembly. The at least one clip member is engaged with the protective members to draw the base members radially inward. The second portion of at least one of the protective members includes a securement member extending from the second portion and axially spaced from the base to define a space therebetween for securely housing a portion of a sprinkler frame.

Abstract: A deflectable touchdown wheel system for a sprayer boom of an agricultural sprayer is provided that includes a touchdown wheel that deflects transversely when contacting the ground at an angle, damping ground contact impact forces at the sprayer boom, reducing reactionary forces such as external steering inputs at the sprayer vehicle.

Abstract: A mobile drip irrigation system includes a plurality of drip tubes anchored at a first end to a water supply conduit. As the mobile irrigation system travels across a surface to be watered a second, free end of each drip tube is pulled along the surface to provide precise and uniform water distribution through the drip tubes. A cable extending across each section of the mobile irrigation system is attached to the plurality of drip tubes within that section, with the cable movable via a winch mechanism to shift the position of the drip tubes within that section to correspondingly shift the drag path of the tubes to a desired location. In exemplary embodiments, a lower manifold distributes water to the drip tubes, and in further embodiments a support restraint provides support to the lower manifold.

Abstract: An air-assisted electrostatic ultrasonic atomization nozzle includes an intake sleeve, a Laval tube, a resonant body and a jet element body. The left end of the intake sleeve is equipped with the air intake, and the right end of the air inlet sleeve is connected with the left end of the Laval tube. The right end of the Laval tube is connected with the left end of the resonant body. The right end of the resonant body is connected with the left end of the jet element body. The sealing surface of the resonant tube is arranged between the resonant body and the jet element body. The sealing surface of the resonant tube obstructs the gas-liquid in the axial direction of the resonant body and the jet element body. The resonant body has a resonant chamber, and the sidewall of the resonant body is equipped with a V-shaped resonant tube.

Abstract: Ceiling only dry sprinkler systems and methods for protection of a storage occupancy employing a mandatory fluid delivery delay period. The systems and methods provide for fire protection of stored commodities of forty-five feet or greater with a hydraulic design ranging from six to eighteen design sprinklers. The systems and methods employ an upright sprinkler having a nominal K-factor greater than 28.

Abstract: A nozzle for atomizing and dispersing a discharge flow of a fluid, and a spacing plate for use in the nozzle is disclosed. The nozzle includes a bonnet, including an inlet port for receiving the fluid in the nozzle, and a first surface extending outward from the inlet port. The nozzle includes at least one deflector base, including a second surface arranged opposite to the first surface. At least one spacing plate is arranged between the first surface of the bonnet and the second surface of the deflector base. The spacing plate includes at least one gap extending through the spacing plate in its perpendicular direction (P) and extending from the outer periphery of the spacing plate to a distance (D) towards the inner section of the spacing plate. A discharge port is fluidly connected to the inlet port allowing the fluid to flow from the inlet port to surroundings of the nozzle. The discharge port is created between the first and the second surface and defined by the at least one gap of the spacing plate.