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throttle meld

Bulgarian translation: - - - x x x - - - ? ? ? - - - throttle meld ? ? ? - - - x x x - - - ? ? ? - - -

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13:43 Apr 4, 2002
English to Bulgarian translations [PRO]
Tech/Engineering
English term or phrase: throttle meld
letala
slavist
Local time: 02:15
Bulgarian translation:- - - x x x - - - ? ? ? - - - throttle meld ? ? ? - - - x x x - - - ? ? ? - - -
Explanation:
http://www.britannica.com/eb/article?eu=120022&tocid=64150&q...

carburetor
(also spelled Carburettor), device for supplying a spark-ignition engine with a mixture of fuel and air. Components of carburetors for automobile engines usually include a storage chamber for liquid fuel, a choke, an idling (or slow-running) jet, a main jet, a venturi-shaped air-flow restriction, and an accelerator pump. The quantity of fuel in the storage chamber is controlled by a valve actuated by a float. The choke, a butterfly valve, reduces the intake of air and allows a fuel-rich charge to be drawn into the cylinders when a cold engine is started. As the engine warms up, the choke is gradually opened either by hand or automatically by heat- and engine-speed-responsive controllers. The fuel flows out of the idling jet into the intake air as a result of reduced pressure near the partially closed throttle valve. The main fuel jet comes into action when the THROTTLE VALVE is further open. Then the venturi-shaped air-flow restriction creates a reduced pressure for drawing fuel from the main jet into the air stream at a rate related to the air flow so that a nearly constant fuel-air ratio is obtained. The accelerator pump injects fuel into the inlet air when the throttle is opened suddenly.

Other components have been added to carburetors to reduce hydrocarbon emissions and improve fuel economy. A miniature electronic device called a microprocessor, as part of the engine system, can provide precise control of the intake air-fuel mixture on the basis of engine temperature, load, and speed.

======================================
Principles of aircraft flight and operation
Primary flight controls
Thrust controls
The pilot controls thrust by adjustment of the control levers for the engine. In an aircraft with a reciprocating engine these can consist of a throttle, mixture control (to control the ratio of fuel and air going to the engine), and propeller control as well as secondary devices such as supercharger controls or water-alcohol injection. In a turbojet engine, the principal control is the throttle, with auxiliary devices such as water injection and afterburners. With water injection, a water-alcohol mixture is injected into the combustion area to cool it, which allows more fuel to be burned. With afterburners, fuel is injected behind the combustion section and ignited to increase thrust greatly at the expense of high fuel consumption. The power delivered by reciprocating and jet engines is variously affected by airspeed and ambient air density (temperature, humidity, and pressure), which must be taken into consideration when establishing power settings. In a turboprop engine, power is typically set by first adjusting the propeller speed with a propeller lever and then adjusting fuel flow to obtain the desired torque (power) setting with the power lever.

To cite this page:
"airplane" Encyclopaedia Britannica
<http://www.britannica.com/eb/article?eu=120022&tocid=64150&q...
[Accessed April 4, 2002].

=====================================
Helicopters
Control functions
A helicopter has four controls: collective pitch control, throttle control, antitorque control, and cyclic pitch control.

The collective pitch control is usually found at the pilot's left hand; it is a lever that moves up and down to change the pitch angle of the main rotor blades. Raising or lowering the pitch control increases or decreases the pitch angle on all blades by the same amount. An increase in the pitch angle will increase the angle of attack, causing both lift and drag to increase and causing the rpm of the rotor and the engine to decrease. The reverse happens with a decrease in pitch angle.

Because it is necessary to keep rotor rpm as constant as possible, the collective pitch control is linked to the throttle to automatically increase power when the pitch lever is raised and decrease it when the pitch lever is lowered. The collective pitch control thus acts as the primary control both for altitude and for power.

The throttle control is used in conjunction with the collective pitch control and is an integral part of its assembly. The throttle control is twisted outboard to increase rotor rpm and inboard to decrease rpm.

The antitorque controls are pedals linked to operate a pitch change mechanism in the tail rotor gearbox. A change in pedal position changes the pitch angle of the tail rotor to offset torque. As torque varies with every change of flight condition, the pilot is required to change pedal position accordingly. The antitorque control does not control the direction of flight.

It was stated above that the lift/thrust force is always perpendicular to the plane of rotation of the rotor. The cyclic pitch control, a stick-type control found to the pilot's right, controls the direction of flight by tipping the plane of rotation in the desired direction. The term cyclic derives from the sequential way each blade's pitch is changed so that it takes the flight path necessary to effect the change in direction.

Differences in helicopter and airplane design and construction
...........................
Selected response from:

xxxVihar Kraste
Grading comment
1 KudoZ points were awarded for this answer

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Summary of answers provided
1 +1- - - x x x - - - ? ? ? - - - throttle meld ? ? ? - - - x x x - - - ? ? ? - - -xxxVihar Kraste


Discussion entries: 1





  

Answers


3 hrs   confidence: Answerer confidence 1/5Answerer confidence 1/5 peer agreement (net): +1
- - - x x x - - - ? ? ? - - - throttle meld ? ? ? - - - x x x - - - ? ? ? - - -


Explanation:
http://www.britannica.com/eb/article?eu=120022&tocid=64150&q...

carburetor
(also spelled Carburettor), device for supplying a spark-ignition engine with a mixture of fuel and air. Components of carburetors for automobile engines usually include a storage chamber for liquid fuel, a choke, an idling (or slow-running) jet, a main jet, a venturi-shaped air-flow restriction, and an accelerator pump. The quantity of fuel in the storage chamber is controlled by a valve actuated by a float. The choke, a butterfly valve, reduces the intake of air and allows a fuel-rich charge to be drawn into the cylinders when a cold engine is started. As the engine warms up, the choke is gradually opened either by hand or automatically by heat- and engine-speed-responsive controllers. The fuel flows out of the idling jet into the intake air as a result of reduced pressure near the partially closed throttle valve. The main fuel jet comes into action when the THROTTLE VALVE is further open. Then the venturi-shaped air-flow restriction creates a reduced pressure for drawing fuel from the main jet into the air stream at a rate related to the air flow so that a nearly constant fuel-air ratio is obtained. The accelerator pump injects fuel into the inlet air when the throttle is opened suddenly.

Other components have been added to carburetors to reduce hydrocarbon emissions and improve fuel economy. A miniature electronic device called a microprocessor, as part of the engine system, can provide precise control of the intake air-fuel mixture on the basis of engine temperature, load, and speed.

======================================
Principles of aircraft flight and operation
Primary flight controls
Thrust controls
The pilot controls thrust by adjustment of the control levers for the engine. In an aircraft with a reciprocating engine these can consist of a throttle, mixture control (to control the ratio of fuel and air going to the engine), and propeller control as well as secondary devices such as supercharger controls or water-alcohol injection. In a turbojet engine, the principal control is the throttle, with auxiliary devices such as water injection and afterburners. With water injection, a water-alcohol mixture is injected into the combustion area to cool it, which allows more fuel to be burned. With afterburners, fuel is injected behind the combustion section and ignited to increase thrust greatly at the expense of high fuel consumption. The power delivered by reciprocating and jet engines is variously affected by airspeed and ambient air density (temperature, humidity, and pressure), which must be taken into consideration when establishing power settings. In a turboprop engine, power is typically set by first adjusting the propeller speed with a propeller lever and then adjusting fuel flow to obtain the desired torque (power) setting with the power lever.

To cite this page:
"airplane" Encyclopaedia Britannica
<http://www.britannica.com/eb/article?eu=120022&tocid=64150&q...
[Accessed April 4, 2002].

=====================================
Helicopters
Control functions
A helicopter has four controls: collective pitch control, throttle control, antitorque control, and cyclic pitch control.

The collective pitch control is usually found at the pilot's left hand; it is a lever that moves up and down to change the pitch angle of the main rotor blades. Raising or lowering the pitch control increases or decreases the pitch angle on all blades by the same amount. An increase in the pitch angle will increase the angle of attack, causing both lift and drag to increase and causing the rpm of the rotor and the engine to decrease. The reverse happens with a decrease in pitch angle.

Because it is necessary to keep rotor rpm as constant as possible, the collective pitch control is linked to the throttle to automatically increase power when the pitch lever is raised and decrease it when the pitch lever is lowered. The collective pitch control thus acts as the primary control both for altitude and for power.

The throttle control is used in conjunction with the collective pitch control and is an integral part of its assembly. The throttle control is twisted outboard to increase rotor rpm and inboard to decrease rpm.

The antitorque controls are pedals linked to operate a pitch change mechanism in the tail rotor gearbox. A change in pedal position changes the pitch angle of the tail rotor to offset torque. As torque varies with every change of flight condition, the pilot is required to change pedal position accordingly. The antitorque control does not control the direction of flight.

It was stated above that the lift/thrust force is always perpendicular to the plane of rotation of the rotor. The cyclic pitch control, a stick-type control found to the pilot's right, controls the direction of flight by tipping the plane of rotation in the desired direction. The term cyclic derives from the sequential way each blade's pitch is changed so that it takes the flight path necessary to effect the change in direction.

Differences in helicopter and airplane design and construction
...........................



    Reference: http://www.britannica.com/eb/article?eu=20583&tocid=0&query=...
    Reference: http://www.britannica.com/eb/article?eu=120023&tocid=64178&q...
xxxVihar Kraste
PRO pts in pair: 306

Peer comments on this answer (and responses from the answerer)
agree  milaplev
10 hrs
  -> Не съм сигурен, че разбирам с кое точно сте съгласна, но Ви благодаря все пак. Горното не е отговор, нали сте се досетили, защото няма ясен въпрос. По-горе има информация за питащия.
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