从柱塞开始间向上运动到油孔被柱塞上端面挡住前为止。在这一段时间内，由于柱塞的运动，燃油从油室被挤出，流向油道。这段升程称为预行程。当柱塞将油孔挡住时，便开始压油过程。柱塞上行，油室内油压急剧升高。当压力超过出油阀的弹簧弹力和上部油压时，就顶开出油阀，燃油压入油管送至喷油器。
PV2R1-6-F-RAA PV2R1-8-F-RAA,
PV2R1-10-F-RAA PV2R1-12-F-RAA,
PV2R1-14-F-RAA PV2R1-17-F-RAA,
PV2R1-19-F-RAA PV2R1-23-F-RAA,
PV2R1-25-F-RAA PV2R1-31-F-RAA,
PV2R1-6-F-LAA PV2R1-8-F-LAA,
PV2R1-10-F-LAA PV2R1-12-F-LAA,
PV2R1-14-F-LAA PV2R1-17-F-LAA,
PV2R1-19-F-LAA PV2R1-23-F-LAA,
PV2R1-25-F-LAA PV2R1-31-F-LAA,
PV2R1-6-L-RAA PV2R1-8-L-RAA,
PV2R1-10-L-RAA PV2R1-12-L-RAA,
PV2R1-14-L-RAA PV2R1-17-L-RAA,
PV2R1-19-L-RAA PV2R1-23-L-RAA,
PV2R1-25-L-RAA PV2R1-31-L-RAA,
PV2R1-6-L-LAA PV2R1-8-L-LAA,
PV2R1-10-L-LAA PV2R1-12-L-LAA,
PV2R1-14-L-LAA PV2R1-17-L-LAA,
PV2R1-19-L-LAA PV2R1-23-L-LAA,
PV2R1-25-L-LAA PV2R1-31-L-LAA.
台湾EALY弋力叶片泵 台湾EALY弋力办事处
高压定量叶片泵PV2R1-10-F-RAA,
PV2R1-12-F-RAA,PV2R1-14-F-RAA,
高压定量叶片泵PV2R2-26,PV2R2-33,
叶片泵PV2R2-41 叶片泵PV2R2-47 叶片泵PV2R2-53 叶片泵PV2R2-59
叶片泵PV2R2-65 叶片泵PV2R2-75 叶片泵PV2R2-26-F-RAA
PV2R2-33-F-RAA PV2R2-41-F-RAA
PV2R2-47-F-RAA PV2R2-53-F-RAA,
PV2R2-59-F-RAA PV2R2-65-F-RAA,
PV2R2-75-F-RAA PV2R2-26-F-LAA,
PV2R2-33-F-LAA PV2R2-41-F-LAA,
PV2R2-47-F-LAA PV2R2-53-F-LAA,
PV2R2-59-F-LAA PV2R2-65-F-LAA,
PV2R2-75-F-LAA PV2R2-26-L-RAA,
PV2R2-33-L-RAA PV2R2-41-L-RAA,
PV2R2-47-L-RAA PV2R2-53-L-RAA,
PV2R2-59-L-RAA PV2R2-65-L-RAA,
PV2R2-75-L-RAA PV2R2-26-L-LAA,
PV2R2-33-L-LAA PV2R2-41-L-LAA,
PV2R2-47-L-LAA PV2R2-53-L-LAA,
PV2R2-59-L-LAA PV2R2-65-L-LAA.
PV2R2-75-L-LAA
