Long plunger sliding sleeve type oil well pump

The utility model discloses a long plunger sliding sleeve type oil well pump, and relates to an oil well pump. The utility model aims to solve the problems that the processing difficulty of an inner circular hole of a lower pump cylinder is large, the processing cost is high, the pump is easy to blo...

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Bibliographic Details
Main Author ZOU SHUJUN
Format Patent
LanguageChinese
English
Published 05.09.2023
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Summary:The utility model discloses a long plunger sliding sleeve type oil well pump, and relates to an oil well pump. The utility model aims to solve the problems that the processing difficulty of an inner circular hole of a lower pump cylinder is large, the processing cost is high, the pump is easy to block, and the leakage amount does not reach the standard in the conventional oil well pump. The plunger pump comprises a pump cylinder (1) and a plunger (2), the pump cylinder (1) is sleeved on the plunger (2), the pump cylinder (1) is in sliding fit with the plunger (2), and the length of the lower portion of the pump cylinder (1) is smaller than that of the lower portion of the plunger (2). The inner side wall of the lower portion of the pump cylinder (1) is in sliding clearance fit with the outer circumferential surface of the lower portion of the plunger (2). The sliding gap H between the inner side wall of the lower portion of the pump cylinder (1) and the outer circumferential surface of the lower portion of th
Bibliography:Application Number: CN202320547252U