发明名称 |
TWO-STAGE FUEL INJECTION VALVE FOR A DIESEL ENGINE, COMPRISING A SOLENOID VALVE AND A SHUTTLE VALVE |
摘要 |
Disclosed herein is a two-stage fuel injection valve for a diesel engine. The valve includes a fuel valve block (110) having therein a passage (1701) into which fuel is supplied; a nozzle (140) having a low pressure nozzle hole (160) and a high pressure nozzle hole (161); a needle valve (130) differentially opening the low pressure nozzle hole and the high pressure nozzle; pressure booster spindles (141), (142) and (143) pressurizing the needle valve to boost pressure of low-load fuel; a shuttle valve (150) configured to supply a gauge pressure to the pressure booster spindles, thus raising the pressure of the fuel; a lifting bush valve (180) discharging fuel to a fuel discharge hole through a gap between the fuel discharge hole and a nozzle holder when a solenoid valve (201) is moved upwards; and the solenoid valve (201) controlling pressure applied to the lifting bush valve. |
申请公布号 |
US2012325937(A1) |
申请公布日期 |
2012.12.27 |
申请号 |
US201113581640 |
申请日期 |
2011.03.04 |
申请人 |
PARK DEUK-JIN;KIM EUNG-SUNG;KIM JU-TAE;KIM JONG-SUK;HEO KWANG-CHEOL;JUNG KANG-YUN;HA EUN;HYUNDAI HEAVY INDUSTRIES CO., LTD. |
发明人 |
PARK DEUK-JIN;KIM EUNG-SUNG;KIM JU-TAE;KIM JONG-SUK;HEO KWANG-CHEOL;JUNG KANG-YUN;HA EUN |
分类号 |
F02M63/00 |
主分类号 |
F02M63/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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