R305 - 9 Excavator Electric Throttle Motor 21N6 - 01273 Wiper Motor Controller

21N6 - 01273 Excavator Throttle Motor Wiper Motor Controller R225 / R305 - 9 Excavator Parts

Specifiions

Description

A throttle body is somewhat analogous to the carburetor in a non-injected engine, although it is important to remember that a throttle body is not the same thing as a throttle, and that carbureted engines have throttles as well. A throttle body simply supplies a convenient place to mount a throttle in the absence of a carburetor venturi. Carburetors are an older technology, which mechanically modulate the amount of air flow (with an internal throttle plate) and combine air and fuel together (venturi). Cars with fuel injection don't need a mechanical device to meter the fuel flow, since that duty is taken over by injectors in the intake pathways (for multipoint fuel injection systems) or cylinders (for direct injection systems) coupled with electronic sensors and computers which precisely calculate how long should a certain injector stay open and therefore how much fuel should be injected by each injection pulse. However, they do still need a throttle to control the airflow into the engine, together with a sensor that detects its current opening angle, so that the correct air/fuel ratio can be met at any RPM and engine load combination. The simplest way to do this is to simply remove the carburetor unit, and bolt a simple unit containing a throttle body and fuel injectors on instead. This is known as throttle body injection (called TBI by General Motors and CFI by Ford), and it allows an older engine design to be converted from carburetor to fuel injection without significantly altering the intake manifold design. More complex later designs use intake manifolds, and even cylinder heads, specially designed for the inclusion of injectors.

Characteristic

1. The largest piece inside the throttle body is the throttle plate, which is a butterfly valve that regulates the airflow.

2. The throttle body is usually loed between the air filter box and the intake manifold, and it is usually attached to, or near, the mass airflow sensor.

3.the internal high-speed gear is powder metallurgy material, to ensure strength and wear resistance, and has self-lubriing grease performance, quiet performance, low-speed gear is special engineering plastics, ensuring reliable and durable

4. the accelerator pedal motion is communied via the throttle cable, which is mechanically connected to the throttle linkages, which, in turn, rotate the throttle plate.
5. Development and manufacture follow original ones

6. Optimized design of the outer box sealing structure, and all use high-quality silicone sealing ring, improve the waterproof and dustproof ability;

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