Nozzle

About: Nozzle is a research topic. Over the lifetime, 158675 publications have been published within this topic receiving 893026 citations. The topic is also known as: spout.

Exposure device and method

Abstract: PROBLEM TO BE SOLVED: To surely fill a space between the final surface of a projection optical system and a substrate with a liquid in an exposure device to which an immersion method is applied SOLUTION: This exposure device comprises a liquid supply nozzle 5 disposed in the periphery of the projection optical system 4 and in the first direction as seen from the projecting optical system When a substrate 9 is moved in the second direction opposite to the first direction by a substrate stage 10, the liquid is supplied onto the surface of the substrate 9 through the liquid supply nozzle 5 to form a liquid film f on that surface Here, the liquid is continuously supplied onto the surface of the substrate 9 through the liquid supply nozzle 5 so that the liquid film f is continuously spread as the substrate 9 moves COPYRIGHT: (C)2005,JPO&NCIPI

Gas turbine dual fuel nozzle assembly with steam injection capability

Abstract: A fuel nozzle assembly is provided having the capability of burning either gaseous or liquid fuel, or both simultaneously, along with steam injection. The nozzle has a nozzle body that is attached to a nozzle cap by inner, outer and middle sleeves. The sleeves form inner and outer concentric annular conduits between themselves for directing the flow of gaseous fuel and steam from the fuel and steam inlet ports to the outlet ports. In addition, the inner sleeve forms a central chamber in which an oil fuel nozzle is disposed. Radial passages in the nozzle body allow cooling air to flow over the oil nozzle and through the oil outlet port, thereby preventing coking at the nozzle tip. The fuel nozzle assembly is originally built, and the nozzle cap is replaced, by sliding the sleeves forward and aft on the assembly so as to gain access to the next innermost sleeve.

Turbofan engine with reduced noise

Abstract: A noise reduction kit for modifying a two (2) spool axial flow turbofan engine with multi-stage compressors and fan driven by multi-stage reaction turbines, and a thrust of at least about 18,000 lbs. at sea level. There is a fan at the upstream end of the core engine for generating axial fan air flow through bypass ducts terminating at a common nozzle, the common nozzle having a mixing plane area for each of the fan air flow and for the exhaust gas in a range between 700 and 800 square inches. A target thrust reverser includes opposing doors rotatable into position to block and divert the flow of exhaust gas for generating reverse thrust. Mixing means for radially diverting fan air and permitting radially outward expansion of exhaust gas is provided coaxially downstream to the core engine. An acoustically dampened light bulb-shaped nose cone is provided for coaxial attachment to an upstream end of the core engine. The axial flow front fan is axially separated from the inlet guide vane is extended relatively forwardly. A bleed air valve, selectively operational to bleed air from the core engine when the valve is open, is ducted for directing bleed air to the vicinity of the common nozzle.

Experimental study on the hazards of high-pressure hydrogen jet diffusion flames

Abstract: The present paper reports the hazards of a hydrogen jet diffusion flame formed by high-pressure hydrogen gas. Hydrogen jets were horizontally released from circular nozzles with diameters ranging from 0.1 to 4 mm, and the release pressure varied from 0.01 to 40 MPa (gauge). The blow-off limits were determined from the nozzle diameter and the release pressure. The flame sizes were measured, and experimental equations were obtained for the length and width of the flame. The flame sizes depended not only on the nozzle diameter but also on the release pressure. In the case of slit nozzles, the flame length depended on the length of the shorter side of the slit nozzle. The radiation from the hydrogen flame could be predicted from the flow rate of the gas and the distance from the flame.