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Inline diesel metering pump. All injection pumps incorporate a governor to cut fuel supply if the crankshaft rpm endangers the engine - the heavy moving parts of diesel engines do not tolerate overspeeding well, and catastrophic damage can occur if they are over-revved. Poorly maintained and worn engines can consume their lubrication oil ...
A unit injector (UI) is a high-pressure integrated direct fuel injection system for diesel engines, combining the injector nozzle and the injection pump in a single component. The plunger pump used is usually driven by a shared camshaft. In a unit injector, the device is typically lubricated and cooled by the fuel itself.
1994: Unit injector system by Bosch for lorry diesel engines. [130] 1996: First diesel engine with direct injection and four valves per cylinder, used in the Opel Vectra. [131] [81] 1996: First radial piston distributor injection pump by Bosch. [130] 1997: First mass-produced common rail diesel engine for a passenger car, the Fiat 1.9 JTD. [81 ...
Higher pressure diesel injection pumps were introduced by Bosch in 1927. In 1898, German company Deutz AG started producing four-stroke petrol stationary engines [31] with manifold injection. [citation needed] The 1906 Antoinette 8V aircraft engine (the world's first V8 engine) was another early four-stroke engine that used manifold injection.
Most internal combustion engines now require a fuel pump. Diesel engines use an all-mechanical precision pump system that delivers a timed injection direct into the combustion chamber, hence requiring a high delivery pressure to overcome the pressure of the combustion chamber.
It is a high revving high output diesel on its VE-Rotary Zexel injection pump. It replaced the 4BC2 in Isuzu NPR's from 1987- non turbo, while the other version uses Diesel Kiki A-type injection pump but not the same as high revving like the Rotary version. Power ratings in VE-Rotary versions (NKR300) are 74 kW (100 PS) at 3800 rpm and 242 N⋅ ...
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