公开(公告)号：US5228844A

公开(公告)日：1993-07-20

申请号：US960967

申请日：1992-10-14

申请人： Kenneth H. Klopfer ,  Ilija Djordjevic ,  Malcolm C. Higgins ,  Daniel E. Salzgeber

发明人： Kenneth H. Klopfer ,  Ilija Djordjevic ,  Malcolm C. Higgins ,  Daniel E. Salzgeber

IPC分类号： F02B75/02 ,  F02M39/00 ,  F02M41/14 ,  F02M59/46 ,  F04B1/107

CPC分类号： F04B1/107 ,  F02M39/005 ,  F02M41/1411 ,  F02M59/466 ,  F02B2075/025 ,  F02M2200/04

摘要： A fuel injection pump having a rotor with a distributor rotor at its outer end and an annular arrangement of radial pumping plunger bores providing a pumping chamber at its inner end. The pump rotor has a coaxial throughbore providing a valve bore intersecting the annular arrangement of plunger bores. A poppet valve, axially shiftable in the valve bore, has a sealing head engageable with a valve seat at the inner end of the rotor throughbore. An armature of a valve electromagnet is fixed to the outer end of the poppet valve for attraction by a coaxial stator when the electromagnet is energized. The poppet valve and armature are coupled to the pump rotor for rotation therewith. A coaxial accumulator bore is provided in a drive shaft adjacent the inner end of the rotor throughbore for supplying fuel to and receiving spilled fuel from the pumping chamber. A shaft driven transfer pump supplies fuel via an annulus in the distributor head to a chamber at the outer end of the rotor and then via the rotor throughbore and a coaxial bore in the poppet valve to the accumulator bore. A pressure regulator is connected between the accumulator bore and transfer pump inlet.

摘要翻译： 一种燃料喷射泵，其具有在其外端具有分配器转子的转子和在其内端处提供泵送室的径向泵送柱塞孔的环形布置。 泵转子具有同轴的通孔，其提供与柱塞孔的环形布置相交的阀孔。 可在阀孔中轴向移动的提升阀具有可在转子通孔的内端处与阀座接合的密封头。 当电磁铁通电时，阀电磁体的电枢固定在提升阀的外端，用于由同轴定子吸引。 提升阀和电枢联接到泵转子以与其一起旋转。 在与转子通孔的内端相邻的驱动轴中设有同轴的蓄能器孔，用于向泵送室供应燃料和从泵送室接收溢出的燃料。 轴驱动的输送泵通过分配器头部中的环空将燃料供应到转子的外端处的腔室，然后经由转子通孔和提升阀中的同轴孔到蓄能器孔。 压力调节器连接在蓄能器孔和输送泵入口之间。