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The structure and working principle of gear pump KCB-200
structure type:
The gear pump KCB-200 consists of an electric motor, a pressure limiter, and a check valve. The electric motor actually works in the fuel in the oil pump housing. Don’t worry, because there is nothing in the housing that can be ignited. The fuel can lubricate and cool the fuel motor. The oil outlet is equipped with a check valve, and the pressure limiter is located on the pressure side of the oil pump housing with a passage leading to the oil inlet.
working principle:
When the rotor disc rotates, the roller is pressed outward by centrifugal force, like a rotating oil seal, the rotor rotates and the pump works, sucking fuel from the oil inlet, and pressing the fuel into the fuel system from the oil outlet, when the oil pump is turned off , The check valve of the oil outlet is closed to prevent fuel from flowing back to the tank through the gear pump KCB-200. The fuel pipe pressure maintained by the check valve is called "residual pressure".
Gear pump KCB-200 pump oil pressure greatly depends on the standard of the pressure limiter. If the gear pump KCB-200 pressure exceeds the predetermined pressure limit, the pressure limiter will open the bypass so that the fuel flows back to the inlet of the gear pump KCB-200.
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