enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Rocket engine nozzle - Wikipedia

   en.wikipedia.org/wiki/Rocket_engine_nozzle

   The gas flow rate is constant (i.e., steady) during the period of the propellant burn. The gas flow is non-turbulent and axisymmetric from gas inlet to exhaust gas exit (i.e., along the nozzle's axis of symmetry). The flow is compressible as the fluid is a gas. As the combustion gas enters the rocket nozzle, it is traveling at subsonic velocities.

3. Propelling nozzle - Wikipedia

   en.wikipedia.org/wiki/Propelling_nozzle

   The gas expands adiabatically with low losses and hence high efficiency. The gas accelerates to a final exit velocity which depends on the pressure and temperature at entry to the nozzle, the ambient pressure it exhausts to (unless the flow is choked), and the efficiency of the expansion. [5]

4. Air-blast injection - Wikipedia

   en.wikipedia.org/wiki/Air-blast_injection

   Unlike modern designs, air-blast injected Diesel engines do not have an injection pump. A simple low-pressure fuel-feed-pump is used instead to supply the injection nozzle with fuel. At injection, a blast of compressed air presses the fuel into the combustion chamber, hence the name air-blast injection. The compressed air comes from compressed ...

5. Nozzle - Wikipedia

   en.wikipedia.org/wiki/Nozzle

   The hot gas is at a higher pressure than the outside air and escapes from the engine through a propelling nozzle, which increases the speed of the gas. [ 2 ] Exhaust speed needs to be faster than the aircraft speed in order to produce thrust but an excessive speed difference wastes fuel (poor propulsive efficiency).

6. Unit injector - Wikipedia

   en.wikipedia.org/wiki/Unit_injector

   A unit injector (UI) is a high-pressure integrated direct fuel injection system for diesel engines, combining the injector nozzle and the injection pump in a single component. The plunger pump used is usually driven by a shared camshaft .

7. Spray (liquid drop) - Wikipedia

   en.wikipedia.org/wiki/Spray_(liquid_drop)

   Examples include fuel injectors for gasoline and diesel engines, atomizers for jet engines (gas turbines), [12] atomizers for injecting heavy fuel oil into combustion air in steam boiler injectors, and rocket engine injectors. Drop size is critical because the large surface area of a finely atomized spray enhances fuel evaporation rate.