FIELD: engines and pumps.
SUBSTANCE: invention proposes a fuel system containing fuel pump 28, a fuel pressure amplifier and injection nozzle 1. In housing 2 of the pressure amplifier there located is spring-loaded piston-multiplier 3, opposite which disk 11 separating drain valve 12 located after it is installed. A cavity between disk 11 and piston-multiplier 3 is interconnected with fuel accumulator 18 is interconnected with the fuel accumulator through a discharge valve and contains spring-loaded plunger made in the form of a pipe located in head of cylinders 5. Fuel pump 28 is interconnected with the fuel accumulator through a discharge valve and contains spring-loaded plunger 29 having a drive from cam shaft 26 of the engine. Plunger 29 is located in a sleeve installed in a cartridge enveloping a return spring of the plunger, which is arranged about the sleeve.
EFFECT: reduction of pressure losses of fuel supplied to the injection nozzle to increase spray pressure of fuel to engine cylinders to improve a process of mixture formation, and therefore, fuel combustion.
2 cl, 2 dwg
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Authors
Dates
2015-06-27—Published
2014-05-20—Filed