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.UntitledCd.9 Fuel Oil SystemFUEL INJECTORlWhat do we understand by atomizing when we talk about injectors?llC - That so solid beam of fuel shall be present.llHow do we recognize a leaking fuel injector during testing?llA - If we have a sudden drop of pressure after the valve is supposed to be closed, this is caused by a leak.llWhy must we never use grinding paste on the seating or on the gilding surface of a needle?llC - Any remaining grinding paste will corrode on the metal surface and after some time the needle will be damaged.lHIGH PRESSURE PUMPlWhich main unit determines the increasing/decreasing of the fuel quantity, i.e.controls “the effective delivery stroke”?llA - The governorllWhat do we mean with “edge of cut off” when we talk about pumps with turntable plungers”?llC - The edge on the plunger which opens for the return line.llWhat do we mean with “dual controlled” fuel pumps when we talk about valve controlled fuel pumps?llA - Both the suction and spill valves are controlled.lVISCOSITY CONTROLlWhat do we mean by viscosity?llA - It can be termed as a resistance to flow.llWhat principle of measurement is the viscosity controlled based on?llC - Measurement of differential pressure.l [ Pobierz całość w formacie PDF ]
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.UntitledCd.9 Fuel Oil SystemFUEL INJECTORlWhat do we understand by atomizing when we talk about injectors?llC - That so solid beam of fuel shall be present.llHow do we recognize a leaking fuel injector during testing?llA - If we have a sudden drop of pressure after the valve is supposed to be closed, this is caused by a leak.llWhy must we never use grinding paste on the seating or on the gilding surface of a needle?llC - Any remaining grinding paste will corrode on the metal surface and after some time the needle will be damaged.lHIGH PRESSURE PUMPlWhich main unit determines the increasing/decreasing of the fuel quantity, i.e.controls “the effective delivery stroke”?llA - The governorllWhat do we mean with “edge of cut off” when we talk about pumps with turntable plungers”?llC - The edge on the plunger which opens for the return line.llWhat do we mean with “dual controlled” fuel pumps when we talk about valve controlled fuel pumps?llA - Both the suction and spill valves are controlled.lVISCOSITY CONTROLlWhat do we mean by viscosity?llA - It can be termed as a resistance to flow.llWhat principle of measurement is the viscosity controlled based on?llC - Measurement of differential pressure.l [ Pobierz całość w formacie PDF ]