A blowing nozzle having a substantially parabolic blowing end is provided which entrains ambient gases into the output flow. A plurality of outlets are arranged so as reduce turbulence within the flow. The substantially parabolic blowing end converges at an apex coaxial with a blowing axis. A central outlet is provided at the apex to generate a core stream of gas. First outlets surround the central outlet. Second outlets surround the first outlets and are angled inward toward the blowing axis. Fins and/or additional outlets may be provided.

An irrigation spraying device includes: a tee joint, a ground picket, a spraying head and two quick connectors. The spraying head is disposed at a top portion of the tee joint; the two quick connectors are disposed on two sides of the tee joint respectively; and a top portion of the ground picket is provided with an engaging portion, which includes two clips matched with two ends of the tee joint respectively. The device can achieve spray irrigation through hanging, can adapt to various irrigation scenes, improves its adaptability, and is simple in structure, convenient to operate, and suitable for popularization and application. A setting of the clips enables a rotation of the tee joint to realize angle adjustment of the spraying head, thereby adjusting the angle of the spraying head during ground irrigation, further improving the adaptability of the device to meet needs of various irrigation scenes.

A sprinkler assembly including a pressure regulator and a flow stop element combined in a single assembly. In one embodiment, the sprinkler includes a sprinkler body in fluid communication with a water supply to provide water to the sprinkler, a riser movably mounted in the sprinkler body and in fluid communication with the sprinkler body such that the riser rises up and out of the sprinkler body when water is provided to the sprinkler, a nozzle assembly mounted on a top end of the riser and in fluid communication with the riser; and a regulation element mounted in the riser and in contact with a portion of the nozzle assembly. The nozzle assembly holds the regulation member in an open position to allow flow of water to the nozzle assembly and to maintain a substantially constant water pressure in the nozzle assembly.

It is prevented that residual fuel left in the vicinity of an injection nozzle outlet is carbonized to cause adherence of the carbonized fuel as deposit and changing of a spray pattern or an injection flow rate. A fuel injection valve includes a seat portion on which a valve body is seated and a seat portion in which an injection hole for injecting fuel downstream from the seat portion is formed, in which a concave surface denting in a direction opposite to a fuel injecting direction is formed on an outer peripheral side away from the injection hole at an end face located downstream of the seat member, and the concave surface is formed such that a material surface in an outer peripheral region has a larger wettability for the fuel than in an inner peripheral region.

A liquid membrane 100 is formed by jetting a liquid sucked from a recovery reservoir 11a and pressurized using a pump 12 from a nozzle of a liquid membrane cartridge 20. The formed liquid membrane 100 makes contact with a slope wall of the liquid membrane cartridge 20 along a surface of the liquid membrane 100. The liquid running down from the slope wall is recovered and stored in the recovery reservoir 11a in order to recover the liquid running down along the slope wall in a decelerated state into the recovery reservoir 11a. As a result, it is possible to prevent air bubbles from being generated by agitation of a liquid of the recovery reservoir 11a when the liquid enters the recovery reservoir 11a.

A variable orifice spray valve including a valve body (42) having a spray discharge orifice (42A) formed therein. The spray valve further includes a liquid flow passage into the valve body, a deflector plate (45) in proximity to the spray discharge orifice (42A) onto which liquid discharged from the orifice is directed, a spray height adjuster (44) adjacent the orifice and movable relative to the deflector plate (45) into the liquid flow path from the orifice, and an adjustment mechanism (43) to adjust the position of the spray height adjuster (44) relative to the discharge orifice (42A).

A pendent fire protection sprinkler includes a sprinkler body having an inlet and an outlet that define a fluid passage and a sprinkler axis, a pair of frame arms that form a junction, a plug that seals the fluid passage, and a thermally responsive element provided between the plug and the junction, and configured to maintain the plug in the fluid passage prior to actuation of the sprinkler. A deflector, mounted to the junction, includes a planar central portion extending along a plane that is perpendicular to the sprinkler axis, as well as a first angled portion, a second angled portion, a third angled portion, and a fourth angled portion, each angled portion extending outwardly from a planar central portion. In addition, each of the first to fourth angled portions is bent away from the frame arms in the outlet direction from the plane of the planar central portion.

A fire protection nozzle includes a body having two frame arms having proximal ends connected to an outlet of the body, and distal ends, the two frame arms defining a frame arm plane, and a junction formed by the distal ends of the frame arms, the junction including a central bore and an outer wall. A deflector is mounted to the body, and includes a planar member having a mounting hole in a center of the planar member to receive the outer wall of the junction, and a plurality of slots on a periphery of the planar member. The plurality of slots includes first slots, second slots, third slots, and fourth slots.

An irrigation sprinkler head has an auxiliary nozzle carrier having a nozzle attached to each end thereof. Each nozzle is held on one end of the flexible nozzle carrier. One end of the nozzle carrier holding a nozzle is attached to the sprinkler head to operatively attach the nozzle to the outlet of the sprinkler head while the other end extends from the side of the sprinkler head. The nozzles are rapidly exchanged on the sprinkler head by disconnecting the nozzle carrier and nozzle from the sprinkler head and connecting the other end of the nozzle carrier and nozzle to the sprinkler head without removing either nozzle from the carrier and without the use of tools. The nozzle carrier is flexible and angled between the nozzle holding ends so that the nozzle carrier can flex between the ends thereof to absorb impact without damage when used below a crop line.

A hygienic spray deflector apparatus includes an inlet opening, an outlet opening, and at least one wall that encloses a space between the inlet opening and the outlet opening. The hygienic spray deflector further includes a spray deflector in the space between the inlet opening and the outlet opening. The spray deflector is configured to deflect fluid that enters the hygienic spray deflector through the inlet opening. The hygienic spray deflector further includes a connector between the spray deflector and the at least one wall. The connector is configured to fix the spray deflector in place within the space. The connector is configured to allow air flow between the inlet opening and the outlet opening.