In this paper, the failure mechanism of plunger seals for injectionpump used in oil field is investigated and the features of existing reciprocating seal structures are evaluated.
对大功率油田注水柱塞泵柱塞密封的失效机理进行了论述，分析了现有几种典型的密封结构。
2
A forced-closing-and-opening plungerpump is developed to solve the problems of gas lock and sand inflow and low pump efficiency in steam injection Wells.
针对辽河油田蒸汽吞吐油井存在气锁、出砂、后期油稠泵效降低的状况，研制了强启闭柱塞抽油泵。
3
Fuel injectionpump assembly, should view the plunger positioning screw gasket roller pin, such as body positioning, such as whether the omission.