Pressure-storage type fuel injection device for internal combustion engines

Pressure-storage type fuel injection device for internal combustion engines

A fuel injection device is so constructed that fuel fed from a pressure storage chamber to a valve housing ( 11 ) with a nozzle ( 14 ) is led to a needle valve back pressure chamber ( 16 ) through a groove ( 21 ) provided on the peripheral surface of a needle valve ( 17 ); a fuel pressure in the bac...

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Hauptverfasser: TANAKA HIROHISA, URAI TAKAHIRO
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF
WEAPONS
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creator TANAKA HIROHISA
URAI TAKAHIRO
description A fuel injection device is so constructed that fuel fed from a pressure storage chamber to a valve housing ( 11 ) with a nozzle ( 14 ) is led to a needle valve back pressure chamber ( 16 ) through a groove ( 21 ) provided on the peripheral surface of a needle valve ( 17 ); a fuel pressure in the back pressure chamber ( 16 ) is controlled by opening and closing a pressure regulating port ( 13 ) provided in the valve housing by a pilot valve ( 38 ) so as to move the needle valve, whereby the nozzle is opened and closed. The pressure regulating port is opened and closed by a drive control of the pilot valve with a valve drive unit by means of elongation and contraction of the magnetostrictive rods attributable by the action of an external magnetic field. The magnetostrictive rods, consisting of first and second magnetostrictive rods ( 34 and 35 ), are axially arranged side by side in parallel to the pilot valve.
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subjects BLASTING
COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF
WEAPONS
title Pressure-storage type fuel injection device for internal combustion engines
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