Monday, November 10, 2014

How Vehicle Fuel Pumps Work

Camshaft and Lever


Following to the fuel pump entity is the camshaft. This camshaft rotates in aligning to function the pump. As the camshaft rotates, the lever arm of the fuel pump is pushed up. This causes the contrary (internal) boundary of the lever arm to movement down.


Diaphragm Lowered


As the internal bound of the lever moves down, the diaphragm above it comes with it, as the two are connected. The lowering of the diaphragm makes the inlet valve of the fuel pump accessible.

Diaphragm Raised

The camshaft continues on its 360-degree rotation. The rotation allows the pump lever arm to come down. The internal neb of the lever arm thus comes up within the pump.


With this valve disclosed, fuel is taut from the Gauze receptacle and into the pump. At the identical date, the lowering of the diaphragm closes an Issue valve. With this valve closed, fuel can't come back into the pump from the fuel border and carburettor.


This pushes up on the diaphragm. As the diaphragm is pushed up, the strength closes the inlet valve so that fuel cannot be pushed back into the Gauze tank. At the same time, the pressure of the raised diaphragm causes the outlet valve to open. This pushes fuel into the fuel line and carburetor.