The device used to adjust the air/fuel mixture. Usually opposite the throttle arm is the high-speed needle valve. This adjusts the high-speed mixture of the engine and allows you to get peak power from the engine while preventing an over-lean condition. Some newer engines use an angled needle adjustment to keep your fingers at a safe distance from the spinning propeller.
This is used to tune the fuel to air mixture on the engine carburetor. On most engines, the needle is turned clockwise to lean the mixture, and counterclockwise to richen.
The small, tapered male part of a needle and seat.
A valve with a circular outlet through which the flow is controlled by means of a tapered needle that extends through the outlet, reducing the area of the outlet as it advances and enlarging the area as it retreats.
A needle valve is a threaded screw with a finger grip that permits the user to regulate the flow of fuel into the carburetor of a motor. Many larger glow motors have two needle valves to control flow rates at different motor speeds (e.g. medium and high range valves). Report this Word See also: Carburetor Added by: mkranitz
A small valve that is opened and closed to permit or restrict fluid or gas flow by the movement of a pointed plug or needle in an orifice or tapered orifice in the valve body.
a globe valve that contains a sharp, pointed, needle-like plug that is driven into and out of a cone-shaped seat to control accurately a relatively small rate of fluid flow. In a fuel injector, the fuel pressure forces the needle valve off its seat to allow injection.
A small dial near the carburetor of the engine that adjusts the mixture of fuel and air into the combustion chamber. Some carbs have two needle valves, one for high rpm and one for low. The low RPM also controls how smooth the transi tion is from low to high.
A valve which allows fine control over the rate of gas or liquid flowing through it. The valve contains a thin needle with a point that fits into a conical cup. When the valve is closed, the needle blocks an orifice in the bottom of the cup.
a multi-turn valve with a needle shaped closing element
A component of the carburetor, which restricts the flow of fuel or fuel/air mixture according to the position of the valve in an orifice or jet.
Fuel mixture adjustment on a model engine.
This mechanism within the carburetor adjusts the fuel mixture and throttle. Refer to your engineâ€(tm)s manufacturer instructions for directions on how to adjust the needle valve.
Adjustment on a carburetor used to set proper fuel/air mixture. Some carburetors have separate needle adjustments for low and high throttle. Typically, turning the needle clockwise (screwing in) leans the mixture (less fuel), and vice versa. However, there are a few exceptions--refer to the engine manufacturer's instructions.
Is a type of valve that provides very fine adjustment by requiring many turns to open it completely. Commonly used to meter the amount of gas needed for an application.
A nitro engine can have from one to three adjustment needles on the carburetor. They are used to adjust the air to fuel ratio. On most engines, the needle is turned clockwise to lean the mixture (allowing less fuel and more air to enter,) and counterclockwise to richen (permitting more fuel and less air to enter.)
A valve, used in HVAC systems, with a stem that tapers to a point.
A needle valve is a type of valve having a small orifice and a threaded, needle-like plunger. It allows precise regulation of flow, although it is generally used for, and is capable of, only relatively small flow rates.
