摘要:
Die Erfindung betrifft eine Vollstrahldüse, insbesondere für einen Wasserwerfer, die einen entlang einer Axialrichtung (10) verlaufenden Strömungskanal umschließt, mit einer an einem Axialende des Strömungskanals vorgesehenen Austrittsöffnung, die einen äußeren Umfang aufweist, der eine Austrittsfläche zur Ausbildung eines Strömungsquerschnitts umschließt, wobei der Strömungsquerschnitt eine zumindest im Wesentlichen kreisförmige oder ringförmige Grundfläche aufweist, wobei ausschließlich in einem Winkelbereich des äußeren Umfangs wenigstens eine radiale Querschnittserweiterung der Austrittsfläche vorgesehen ist, wobei der Winkelbereich maximal 180° beträgt. Die erfindungsgemäße Vollstrahldüse ist dadurch gekennzeichnet, dass die wenigstens eine radiale Querschnittserweiterung durch einen mit seiner Längsachse parallel zur Axialrichtung verlaufenden, senkrecht zur Grundfläche mündenden Schlitz oder eine mit ihrer Längsachse parallel zur Axialrichtung verlaufenden, senkrecht zur Grundfläche mündenden Aussparung gebildet wird.
摘要:
Fire extinguisher which comprises a container provided with a particulate extinguishing agent which can be dispersed on a seat of the fire. To easily disperse the particulate extinguishing agent, which comprises for instance montmorillonite, the container comprises a sidewall provided with a discharge opening for the particulate extinguishing agent, and the fire extinguisher comprises a handle connected via a telescopic tube to the container. In a protracted state the extinguishing agent can be dosed relatively safely. The discharge opening is preferably sealed until use using film such as metal tape.
摘要:
Coat-in-place assemblies and methods to provide an aesthetically pleasing sprinkler assembly. A coat-in-place assembly includes a sprinkler body having a proximal portion and a distal portion, a thermally responsive trigger disposed adjacent the distal portion; and an escutcheon centered about the distal portion of the sprinkler body to define a void between the sprinkler axis and the escutcheon. A coating-inhibiting-cap encloses and protects the thermally responsive trigger between the sprinkler body and the cap. The cap extends into the void and is radially spaced inward relative to the escutcheon so as expose surfaces of the escutcheon for coating.
摘要:
Higher pressure exists at the bottom of deep water (including other fluids). This system utilizes machinery to compress a compressible fluid matter such as air with deep water high pressure so as to store the energy in the compressed air having a smaller compressed volume. The compressed air is subsequently injected into an expansion chamber in which it releases the stored energy and returns to its original volume. In constant temperature, a 10 m3 volume of water provides 10 times pressure to compress a single volume to 1/10 its volume. When the pressure is reduced 10 times, the compressed air would return to its original volume to release the stored energy which can be utilized to rotate a turbine and in turn a power generator to generate electric power.
摘要:
An automatic spray nozzle arrangement, which comprises a nozzle casing having a cavity, with inlet and outlet openings, in which a nozzle arrangement is kept inside by means of a plate, which is characterized by the plate being located in the outlet opening of the nozzle casing by help of an automatic thermal release element, which demolishes from heat exposure, and where the release element via one or two brackets, which are fixated in one or two points attached to casing fixate, fixate the plate in the nozzle casing.
摘要:
A full coverage fluidic oscillator (2) includes a fluidic circuit member preferably having an oscillation inducing internal chamber, at least one inlet (8) or source of fluid under pressure, at least a pair of output nozzles (14, 16) connected to the source of fluid for projecting at least first and second impinging fluid jets into free space, where the first and second impinging jets collide or impinge upon one another at a selected jet angle to generate a substantially omni-directional sheet jet having selected thickness. The first and second jets are aimed at a pre-selected intersection point in free space where impingement is to occur. The sheet jet's thickness Δy is determined by the time-varying path or oscillation of each of the first and second impinging jets. The first and second impinging jets can be made to oscillate or pulsate by use of vortex generating amplifier structures (68, 70, 72, 149) within the internal chamber's fluid flow paths.