Mechanically Controlled Diesel

DENSO's mechanically controlled injection pumps are divided into two categories:

 

In-Line Fuel Injection

 

The in-line fuel injection pump has the same number of fuel pressure mechanisms (elements) as engine cylinders. This type of pump, including the governor, timer and feed pump on the pump's body, is mainly used for medium and large trucks and construction machinery. The pump body is equipped with fuel pressure/feed mechanisms and injection quantity control mechanisms driven by a camshaft. The elements in the pump body feed fuel to each engine cylinder according to the injection order.

 

Distributor injection pump

 

The distributor injection pump has only one fuel pressure mechanism, irrespective of the number of engine cylinders. Instead, it has a distributor designed to distribute the pressurized fuel to each cylinder according to the injection order. All the components, including the governor, timer and feed pump, are built into the pump housing. The small, light pump can operate at high speeds – making it ideal for small engines.