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    • 4. 发明授权
    • Unit injector of internal combustion engine
    • 内燃机单元喷油器
    • US4565320A
    • 1986-01-21
    • US357879
    • 1982-03-15
    • Hiroyuki TaniguchiHiroaki Tsukahara
    • Hiroyuki TaniguchiHiroaki Tsukahara
    • F02M57/02F02M47/02
    • F02M57/02
    • A unit fuel injector for internal combustion engines having a fuel injecting pump portion and a fuel injection valve portion which are assembled as a unit in a single injector body (6). The injector body (6) has an upper section into which a check valve (9), barrel (5), plunger (3), and so forth are inserted from the upper side of the injector body. The check valve, barrel, plunger and so forth are secured by means of a barrel holder (7) screwed into the upper section of the injector body. Also a nozzle spring (13), nozzle body (19), nozzle valve (18) and so forth are assembled and placed within from the lower side of the injector body. The nozzle spring, nozzle body, nozzle valve and so forth are fixed by a nozzle nut (20) screwed to the lower section. This arrangement permits the diameter of the unit fuel injector to be reduced to facilitate the mounting in the limited space on a cylinder head of the engine.
    • 一种具有燃料喷射泵部分和燃料喷射阀部分的内燃机的单元燃料喷射器,其在单个喷射器主体(6)中组装为一个单元。 喷射器主体(6)具有从喷射器主体的上侧插入止回阀(9),筒(5),柱塞(3)等的上部。 止回阀,桶,柱塞等通过拧入喷射器主体的上部的筒保持器(7)固定。 此外,喷嘴弹簧(13),喷嘴体(19),喷嘴阀(18)等组装并从喷射器主体的下侧放置。 喷嘴弹簧,喷嘴体,喷嘴阀等通过螺纹连接到下部的喷嘴螺母(20)固定。 这种布置允许单元燃料喷射器的直径减小,以便于安装在发动机的气缸盖上的有限空间中。