Carburetor designed and constructed in such a complicated, with the goal of a carburetor capable of supplying the needs of the machine in every condition, whether it is a light load or a heavy load.
Expected carburetor capable stabilizing mix required machine, while stabilizing in the ideal mix. Because of the rules of free from pollution, then the carburetor must also be able to meet those needs. It required a carburetor system are really qualified and of course there should be support components. What are the necessary components carburetor? How many kinds of these components? The following components and functions carburetor.
carburetor pictures and supporting components.
carburetor components.
Fuel chamber.
Choke valve.
Piston valve (throttle valve).
Main jet or main channel.
Slow jet.
Piston valve screw.
Pilot screw.
Acceleration pump.
Fuel chamber.
all carburetor requires a constant supply of oil and stable. supplier of motor fuel from the tank, there will always be controlled by a float and float needle. The buoy serves to regulate and control the movement of the needle floats based amount oil contained in the oil storage space inside the carburetor.
Needles float serves to close and open the oil drain from the tank of the motor. \ When the amount of oil in the carburetor container space has reached a certain height or full, the float needle will close the oil channel and vice versa.
If the oil has been reduced, the buoy will float down and the needle will open channels of motor oil from the tank.
Choke valve,
the choke valve is general called choke. The function of the choke is to enrich the fuel mixture or oil,especially when the engine is cold. For produce a mixture of oil and rich air, at the inlet of the carburetor mounted a disc (choke) to shut down the main channel caraburetor.
At choke valve is closed, the vacuum that occurred intake air duct will '' force '' more fuel out of the fuel chamber or container in the carburetor space so that the mixture becomes rich.
the piston valve (throttle valve).
In general, this function carburetor components, to regulate the large and the small venturi duct, but if we learn further, piston valve to regulate the large and the small gas amount fuel into the engine cylinder or combustion chamber. Viewed from this side of the piston valve functions are: Changing the spin machine.
Maintaining speed engines or motors on the load varies.
Piston valve or throttle fitted with a needle skepticism or jet needle, and the function of the needle skepticism is to regulate the amount of fuel or oil, which is out of the main channel (main jet).
At Needle skepticism itself there are several points settings, which can be used to reduce or increase the oil that comes out of the main channel or main jet.
Main jet or main channel.
Main jet or main channel is useful for the purposes of supplying the required engine oil in accordance with the level of engine rotation speed of the motor. Good at high speed, medium, and fast according to the load the motor itself.
slow jet
Slow jet channel serves to drain the fuel into the engine cylinders when the engine is langsang round .And in this process, piston valve or throttle in a position to close the meeting.
piston valve screw.
The adjusting bolt serves to, set throttel adjust the size idhlle or langsang round. Round idling motors ranging between 3000RPM (rotations per minute rounds). How to get a perfect lap langsang. At the moped can be obtained by sensing the vibrations or the lowest vebrasi. for motor sport the same way or see the needle get speedometer to RPM rotation.
pilot screw.
Screw is useful to set amount flow of air entering the cylinder chamber, resulting in mix get right at the time of engine idling rotation.
Acceleration pump.
Acceleration pump is pointless to increase the amount of oil when the engine rotation speed changes, from the high-low round round. Extra fuel is necessary, because when the piston valve (throttle) lifted the vacuum will fall so that the supply of oil will be reduced which will lead to detonation or explosion.
working principle and part of that work.
round idling
The working principle and the parts that function in the engine when changing speed.Round idling (idle speed), Understanding round idling is a no-load low engine rotation in accordance with factory standards.
In this condition the piston valve is closed, and the main channel does not remove the oil.Air flows through the air channel (slow bleed water) onto the channel slow jet.amount mixture of oil and air generated is generally only enough to keep the engine alive in vebrasi minimum.
In this condition the active channels are:
Slow bleed water.
Slow jet.
When the slow rotation does not comply with the provisions, it can be corrected by turning the screw trottle valve (pilot valve screw) to obtained proper engine speed.
Middle rounds.
The intent of the middle rounds, when the rotating machine is approximately half of maximum rotation engine, and the pilot valve. Gas position trajectory hands are at half maximum. In this condition the venturi formed also half of the maximum venturi.
In this state, the air will flow through the venturi channel and channel idle (slow water bled). Needle skepticism was lifted following the piston valve, the fuel will flow from the main channel (main jet) and also from channel idle (slow jet).
amount oil that comes out of the main channel will be governed by the needle-shaped tapered skepticism, in accordance with the existing gap between the main channel and the needle skepticism. Therefore, the placement of a clip or needle skepticism setter is crucial.In this case the number of positions the clip setter is usually between 3-5 pieces.
Thus, the components of the carburetor to function at medium speed engine conditions are:
Venturi bleed water.
Slow jet.
Main jet.
jet needle.
Piston valve.
round high.
The purpose of the high round here is the engine spins at a maximum rotation. In this state, the gas arms fully extended. Thus, the piston valve is in full open condition and fully uplifted needle skepticism that the main duct hole being closed again by needle skep. air will flow fully through the venturi which has maximum open. Air will pull the oil completely through the main channel.
when the engine maximum rotation, going on specifics. Air flow and the flow of oil, which has been mixed into the gas moving very fast. But in fact the oil particles faster than the air reaches the cylinder chamber. So that when the gas in the compression, the composition of the mixture becomes rich. A rich blend will produce pollution and wasted fuel.
To overcome these problems, the carburetor is equipped with a water play bleed.
The goal added air channels , to add or inject air into the flow at the moment high. so that round of mixed composition can be maintained according to the standard that is 1:15, as well as to control exhaust emissions and improve efficiency in the use of fuel.
The impact that occurs when the channel clogged up the fuel that is so wasteful at high speed and increased levels of exhaust pollution.
Another term for this channel is a correction in the fuel mix (mix correction passage) point to fix the exact composition of the mixture in order pobud.
From the description above we can conclude long, components acting on the carburetor when the engine at high speed.
Venturi maximum.
Jet maximum needle.
The main channel (main jet).
Main water bleed.
