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cowling    音标拼音: [k'ɑʊlɪŋ]
n. 飞机引擎罩

飞机引擎罩

cowling
n 1: protective covering consisting of a metal part that covers
the engine; "there are powerful engines under the hoods of
new cars"; "the mechanic removed the cowling in order to
repair the plane's engine" [synonym: {hood}, {bonnet}, {cowl},
{cowling}]

Cowl \Cowl\ (koul), n. [AS. cuhle, cugle, cugele; cf. dial. G.
kogel, gugel, OF. coule, goule; all fr. LL. cuculla,
cucullus, fr. L. cucullus cap, hood; perh. akin to celare to
conceal, cella cell. Cf. {Cucullate}.]
1. A monk's hood; -- usually attached to the gown. The name
was also applied to the hood and garment together.
[1913 Webster]

What differ more, you cry, than crown and cowl?
--Pope.
[1913 Webster]

2. A cowl-shaped cap, commonly turning with the wind, used to
improve the draft of a chimney, ventilating shaft, etc.
[1913 Webster]

3. A wire cap for the smokestack of a locomotive.
[1913 Webster]

4. (aviation) a removable metal covering for an aircraft
engine, providing streamlining to minimize wind
resistance; -- also called {cowling}.
[PJC]

5. a covering for a chimney or other ventilating shaft
functioning to increase the draft.
[PJC]


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  • What is the difference between a nacelle and a cowling?
    A cowl or cowling is any part of the aircraft (or engine nacelle) that can be opened or removed (for inspection etc ) The following image shows cowlings in a nacelle Source: compositesworld com These are maintenance cowlings Another type of cowlings (like NACA cowlings) serve to direct the airflow into the engine
  • aircraft physics - aerodynamic forces on an engine cowling - Aviation . . .
    $\begingroup$ IF that's the case, then there must have been an imbalance of pressure on the forward and back side of the cowling It might be more intuitive to think about the cowling being pushed forward from high pressure behind the cowling than being pulled $\endgroup$ –
  • aircraft design - What are cowl flaps? - Aviation Stack Exchange
    They are flaps or doors on the engine cowling that open up in order to provide increased cooling airflow for the engine They look like this when open They are generally controlled by a handle in the cockpit (some aircraft have electric cowl flaps with an open close switch) The disadvantage is that the open flaps also increase drag
  • Structure that holds the twin-engine on an aircraft
    A cowling just covers the engine and is usually used when an engine is faired into another structure like the fuselage I'm not sure "engine nacelle structure" is a thing A prop engine is usually held in place by an engine mount, a turbofan engine is held in place by a pylon $\endgroup$
  • How hazardous is it if an engine cowl falls off?
    And as Koyovis mentions, losing the nacelle or portions thereof (looks like in this case it was the intake and fan cowling) can change the aeroelastic properties, thus inducing vibration, which is not comfortable for the passengers or crew (reducing their ability to do their jobs) and adds additional loads to other engine parts
  • aircraft design - How does the position of vortex generators on engine . . .
    The vortex generator helps only at high angle of attack by energizing the airflow between nacelle and wing During cruise it will create additional drag without much benefit, especially if the nacelle-wing-combination has been designed w
  • boeing 737 - What does the area around the fan blades in the engine . . .
    In the last picture you can see that this particular design has a separate inner cowling around the non-fan portion of the engine, as opposed to building the by-pass channel into the rear section of the nacelle that in the IPB example also houses the thrust reversers
  • What is this flange on the engine? - Aviation Stack Exchange
    I do not believe the teaching in the patent is correct Instead of the downwash from the strake suppressing the wing upwash (and remember, the other side of the vortex adds to the wing upwash!) we believe that the vortex is well organized and can withstand the adverse pressure gradient of the wing better than the 'junk' wake of the nacelle without the strake
  • aircraft design - Is there a reason for the difference in turbo prop . . .
    The TBM 940 and Cessna caravan both have the PT6A turbo prop engine The sister caravan has one single exhaust stack under the engine cowling, and almost all other small turbo props have dual exhaust on both sides of the engine cowling Is there a reason for this and is one better than the other?
  • Is the Meredith effect utilized in the cowling design of air-cooled . . .
    The Meredith Effect is not some inexplicable high science, an inlet does pressure recovery, the radiator adds heat to air, a nozzle reconverts pressure back to velocity all I'm asking is whether someone had BOTHERED to design a cowling to make a REAL EFFORT at utilizing it rather than just be SATISFIED that the engine is cooled and not TOO





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