unit injector

In a Unit injector, the device is usually lubricated and cooled by the fuel itself.

Fuel is provided by Unit Injectors, one per cylinder.

Each bank of cylinders has a camshaft which operates the exhaust valves and the Unit injectors.

The overhead camshaft (operating both valves and the unit injectors) was chain-driven.

Most modern diesel engines use Common rail or Unit Injector direct injection systems.

The unit injector system allows accurate injection timing, and amount control as in the common rail system .

Depending on the engine, this might include high pressure injection pumps, pump injectors (also called unit injectors) and fuel injectors.

Two common types include the unit injection system and the distributor/inline pump systems (See diesel engine and unit injector for more information).

Frederick Lamplough was a British engineer who invented the diesel injector (Unit Injector).

D13A featured closed-crankcase ventilation and also included a new type of unit injector (UI) E3 from Delphi.

The development of the all-new design 12 litre engine with its overhead camshaft and electronic unit injectors technology placed Volvo among the world's leading engine designers.

In 1911 a patent was issued in Great Britain for a unit injector resembling those in use today to Frederick Lamplough.

In 1994, Robert Bosch GmbH supplied the first electronic Unit Injector for commercial vehicles, and other manufacturers soon followed.

HEUI uses engine oil pressure to power high pressure fuel injection, where usual method of unit injector operation is the engine camshaft.

All engines have mechanically-controlled Unit injectors (patented in 1934 by General Motors, EMD's former owner).

Some current PD TDI engines now use piezoelectric unit injectors, allowing far greater control of injection timing and fuel delivery.

Cylinder head (including the four exhaust valves but not the Unit injector or Electronic unit injector)

It performs the same function as a conventional Unit Injector (UI) in an internal combustion engine, such as in a diesel-electric locomotive.

The Unit Injector is fitted into the engine cylinder head, where the fuel is supplied via integral ducts machined directly into the cylinder head.

Post-1995 engines have electronically-controlled Unit injectors (EUIs) which fit within the same space as a Unit injector.

Unit Injector (UI) is an integrated direct fuel injection system for diesel engines, combining the injector nozzle and the injection pump in a single component.

Fuel Injection system: Split Shot HEUI (Hydraulic Electronic Unit Injectors)

Design of the Unit Injector eliminates the need for high pressure fuel pipes, and with that their associated failures, as well as allowing for much higher injection pressure to occur.

An Electronically-controlled Unit Injector (EUI) is a Unit Injector with electronic control.

Turbocharged Direct Injection diesel engines which use the common rail direct injection will replace the longstanding Pumpe/Düse (PD) Unit Injector system.