A liquid discharge apparatus includes: a discharge head including a discharge portion configured to discharge a liquid; a cap configured to cap the discharge portion; a suction unit configured to suck an interior of the cap through a first fluid passage communicating with the interior of the cap in a state in which the cap caps the discharge portion; an open/close unit configured to open/close a second fluid passage communicating with the interior of the cap, the open/close unit being set in an open state when a negative pressure state of the interior of the cap, which is generated by suction by the suction unit, is canceled; and a filter arranged in the second fluid passage.

An apparatus for use in marine platform jacking is disclosed herein. In one aspect, a jetting valve includes a valve body with a piston assembly disposed therein. The piston assembly is selectively operated to open and close the valve. A biasing member is coupled to the piston assembly. The piston assembly includes a first piston and a second piston. The dual pistons, in cooperation with the biasing member, allow the valve to self-seal thereby preventing entry of a fluid which is external to the valve.

A bracket assembly for an integrated LIDAR and camera-based sensing system is provided. The bracket assembly can be mounted to a LIDAR sensor and includes a camera housing. The bracket assembly also includes a plurality of liquid spray nozzles and a plurality of air blower ducts. The plurality of liquid spray nozzles discharge a cleaning liquid (e.g., washer fluid) toward the exterior surface of the LIDAR sensor and the camera sensor, and the plurality of air ducts discharge compressed air toward the exterior surface of the LIDAR sensor and the camera sensor. The liquid spray nozzles and the air ducts cooperate to clear foreign matter from the LIDAR sensor and the camera sensor despite being close to the edge of each such sensor.

A method and arrangement for maintaining fluid flow pressure in a system at a preset, almost constant level. A method for maintaining fluid flow pressure almost constant regardless of mass flow. The arrangement including a pressure accumulator, and a nozzle valve. The nozzle valve having a valve body and axially oriented needle for opening and closing the mouth of its outflow channel. The needle shaft guided by a slide element mounted inside the valve body. The inflow into the flow body passes to the other side of the slide element through one or several channels. The needle moves axially to open and close the channel because of the forces acting upon it. Forces acting upon it may include the accumulator, the inflow and a spring. The needle's movement adjust the cross-sectional area of the outflow channel mouth not disposed by the needle head to maintain an almost constant pressure.

A spray nozzle assembly for a steam desuperheating or attemperator device. In one embodiment, the spray nozzle sub-assembly of the spray nozzle assembly comprises a fixed nozzle element which is integrated into a spring-loaded nozzle element, and is specifically adapted to improve water droplet fractionation at higher flow rates while further providing an effectively higher spray area through the formation of two water cones (rather than a single water cone), such water cones being sprayed into a flow of superheated steam in order to reduce the temperature of the steam. In another embodiment, the spray nozzle sub-assembly of the spray nozzle assembly comprises a nested pair of spring-loaded primary and secondary nozzle elements which are also adapted to provide an effectively higher spray area through the formation of two water cones.

A nozzle for spraying a pressurized liquid. The nozzle is adapted for processing a pressurized liquid through an orifice of the nozzle, where the pressurized liquid forces a nozzle member away from a seat. The nozzle member is moved by the pressurized liquid against a counterforce produced by a gas pressure. Gas pressure operates against a plunger to produce a force acting on the nozzle member in opposition to the liquid pressure. A desired upstream pressure of the pressurized liquid is established when the forces across the movable nozzle member are balanced. A desired upstream pressure of the pressurized liquid can be changed by changing the pressure of the gas that forces the plunger against the movable nozzle member.

A sprinkler head includes a sprinkler body, a nozzle positioned within the sprinkler body, a fixed gear coupled with the sprinkler body, a wobbler cage supported on the sprinkler body, and a water deflector plate coupled with the wobbler cage and disposed downstream of the nozzle. A brake assembly is coupled with the water deflector plate for slowing a rotating and wobbling motion of the wobbler cage and the water deflector plate. The brake assembly includes a shaft extending through the water deflector plate and a brake gear disposed at an end of the shaft, where the brake gear is engageable with the fixed gear. Among other advantages, the design eliminates the use of large fixed strut framework that creates dry shadows in the water pattern.

An irrigation sprinkler and sprinkler nozzle assembly including a self contained pressure regulator and flow control ring, which can be assembled with a desired spray deflector, shrub bubbler or rotating stream distributor on the top of the nozzle assembly. The pressure regulator housing is incorporated into the center of the nozzle assembly and includes a reference pressure chamber connected to atmospheric pressure with a spring bias enclosed to bias a pressure responsive movable member that is connected to an upstream pressure balanced flow throttling valve. A combination deflector pop-up pressure regulating mechanism housed in the filter of the nozzle housing assembly is also shown.

A fluid delivery system utilizes Bernoulli pressure differentials and kinetic forces is provided. The system includes a pressurized channel in fluid communication with a flexible pressurized line for translating pressurized fluids to a mixing chamber. The mixing chamber is also in fluid communication with a source channel receiving fluids from a flexible source line. The mixing chamber is configured for entraining the source fluids with the pressurized fluids 26 using Bernoulli principles. Kinetic valves may be used in conjunction with, or in lieu of, the Bernoulli siphoning.

A nozzle device for sorting objects by ejecting a gaseous media towards said object. The nozzle device nozzle device including: a nozzle unit including at least one nozzle; a nozzle bar including gas supply means for providing a gaseous media to said nozzle unit; and a nozzle fixation bracket adapted for holding said nozzle unit in place; said at least one nozzle including: an inlet for receiving the gaseous media; and having one outlet, having an outlet area, for ejecting the gaseous media towards an object to be sorted; a channel extending between said inlet and said outlet; an outlet portion surrounding at least said outlet, wherein said outlet portion including a flexible material, which deflects upon ejection of the gaseous media, received from said nozzle bar, through said outlet whereby said outlet area increases. Also, a system for sorting objects.