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.

Fluid drop ejector and method

Abstract: An improved fluid drop ejector is disclosed which includes one wall including a thin elastic membrane having an orifice defining a nozzle and elements responsive to electrical signals for deflecting the membrane to eject drops of fluid from the nozzle.

Fuel injection pump

Abstract: PURPOSE:To improve an engine starting property and reduce the generation of graphite by electrically controlling opening/closing of an overflow valve for allowing part of fuel which is fed under pressure into a fuel injection nozzle to escape, in accordance with the operating condition of a diesel engine CONSTITUTION:Fuel which is fed under pressure from a feed pump 31 driven by a diesel engine is fed into a fuel injection nozzle 32 Part of the fuel is allowed to escape into a fuel tank 33 via an overflow valve 15 provided in a pump housing 11 In this structure, in the overflow valve 15, a poppet 20 for opening/closing an inlet port 18 is provided inside a valve chamber 17 formed on a valve body 16 The poppet 20 is pressed by a pressure regulating plunger 22 via a pressure spring 21 while the drive of the pressure regulating plunger 22 is controlled by means of a control unit 34 via an electric actuator 23

Gas dynamic virtual nozzle for generation of microscopic droplet streams

Abstract: A nozzle for producing a single-file stream of droplets of a fluid, methods using the nozzle, and an injector, comprising the nozzle of the invention, for providing the single-file stream of droplets of a fluid to a high-vacuum system are described. The nozzle comprises two concentric tubes wherein the outer tube comprises a smoothly converging-diverging exit channel and the outlet end of the first tube is positioned within the converging section of the exit channel.

Method of and apparatus for tunable gas injection in a plasma processing system

Abstract: A method of and apparatus for providing tunable gas injection in a plasma processing system ( 10, 10′ ). The apparatus includes a gas injection manifold ( 50 ) having a pressurizable plenum ( 150 ) and an array of adjustable nozzle units ( 250 ), or an array of non-adjustable nozzles ( 502, 602 ), through which gas from the plenum can flow into the interior region ( 40 ) of a plasma reactor chamber ( 14 ) capable of containing a plasma ( 41 ). The adjustable nozzle units include a nozzle plug ( 160 ) arranged within a nozzle bore ( 166 ). A variety of different nozzle units are disclosed. The nozzle plugs are axially translatable to adjust the flow of gas therethrough. In one embodiment, the nozzle plugs are attached to a plug plate ( 154 ), which is displacable relative to an injection plate ( 124 ) via displacement actuators ( 170 ) connecting the two plates. The displacement actuators are controlled by a displacement actuator control unit ( 180 ), which is in electronic communication with a plasma processing system control unit ( 80 ). The gas flow into the chamber interior region is preferably controlled by monitoring the pressure in the plenum and in the chamber and adjusting the nozzle units accordingly. Where the nozzle units are not adjustable, a portion of the nozzles are sized to a first flow condition, and another portion of the nozzles are sized to a second flow condition.