Which part component of the carburetor controls the amount of air flowing through the carburetor when the engine is at idle or full power?
Table of Contents
- 1 Which part component of the carburetor controls the amount of air flowing through the carburetor when the engine is at idle or full power?
- 2 What is the possible cause of an engine running rich at full throttle if it i equipped with a float type carburetor?
- 3 What are the limitations of simple carburetor?
- 4 When air passes through the venturi of a carburetor?
- 5 What are the main components of the pressure injection carburetor?
- 6 Which component of the carburettor is used to produce low pressure in the throat of the carburettor?
- 7 Why must a float type carburetor supply a rich mixture during idle?
- 8 What is the fuel metering force of a conventional carburetor?
Which part component of the carburetor controls the amount of air flowing through the carburetor when the engine is at idle or full power?
What is a function of the carburetor venturi? Proportions the fuel/air mixture and Limits the airflow at full throttle. introducing low pressure (intake manifold) air into the float chamber.
What is the possible cause of an engine running rich at full throttle if it i equipped with a float type carburetor?
What is the possible cause of an engine running rich at full throttle if it is equipped with a float-type carburetor? Clogged main air bleed. Better fuel vaporization & control of fuel discharge, especially at lower engine speeds.
What element of the pressure carburetor regulates the overall pressure for the entire carburetor?
The diaphragms are attached concentrically to a shaft which operates a wedge-shaped servo valve. This valve controls the rate at which fuel can enter the pressure carburetor.
What component is used to ensure fuel delivery during rapid engine acceleration?
What component is used to ensure fuel delivery during periods of rapid engine acceleration? Acceleration pump.
What are the limitations of simple carburetor?
Limitations of simple carburetor
- At low speed, the amount of fuel in air-fuel mixture is very low.
- It gives stoichiometric mixture only at one specific speed and load.
- Fuel economy is very low.
- The working of simple carburetor will be affected by the atmospheric pressure.
When air passes through the venturi of a carburetor?
Fuel Metering
| Question | Answer |
|---|---|
| When air passes through the venturi of a carburetor, what three changes occur? | Velocity increases, temperature decreases, and pressure decreases |
| The carburetor venturi does not do what? | regulate the idle system |
What is the theory of float-type carburetor?
A float-type carburetor consists essentially of six subsystems that control the quantity of fuel discharged in relation to the flow of air delivered to the engine cylinders. These systems work together to provide the engine with the correct fuel flow during all engine operating ranges. Float chamber mechanism system.
What is a diaphragm in a carburetor?
The diaphragm is connected to the needle valve and as it moves inward it opens the needle valve to admit more fuel, thus replenishing the fuel as it is consumed. As fuel is replenished the diaphragm moves out due to fuel pressure and a small spring, closing the needle valve.
What are the main components of the pressure injection carburetor?
The pressure injection carburetor is an assembly of the following units:
- Throttle body.
- Automatic mixture control.
- Regulator unit.
- Fuel control unit (some are equipped with an adapter)
Which component of the carburettor is used to produce low pressure in the throat of the carburettor?
Explanation: Venturi tube is provided to produce low pressure in the throat of the carburettor. The suction force causes the fuel to rise in the jet.
Which is the most fuel efficient type of gas turbine engine?
turbofan
The turbofan, with a lower TSFC, is more fuel efficient. The values of 1.0 for a turbojet and 0.5 for a turbofan are typical sea level static values.
What is float carburetor?
A float-type carburetor consists essentially of six subsystems that control the quantity of fuel discharged in relation to the flow of air delivered to the engine cylinders. These systems work together to provide the engine with the correct fuel flow during all engine operating ranges.
Why must a float type carburetor supply a rich mixture during idle?
The throttle valve of float-type aircraft carburetors is located Between the venturi and the engine. Why must a float-type carburetor supply a rich mixture during idle? Because at idling speeds the engine may not have enough airflow around the cylinders to provide proper cooling.
What is the fuel metering force of a conventional carburetor?
The fuel metering force of a conventional float-type carburetor in its normal operating range is the difference between the pressure acting on the discharge nozzle located within the venturi and the pressure Add or remove shims under the needle-valve seat.
What is the back suction mixture control on a carburetor?
The purpose of the back-suction mixture control in a float-type carburetor is to adjust the mixture by Regulating the pressure on the fuel in the float chamber. Reciprocating engine power will be decreased at all altitudes if the
What is the function of the carburetor in an aircraft?
Varying the pressure acting on the fuel in the float chamber. If an aircraft engine is equipped with a carburetor that is not compensated for altitude and temperature variations, the fuel/air mixture will become Richer as either the altitude or temperature increases. Float-type carburetors which are equipped with economizers are normally set for