| 摘要 |
The invention relates to an electrohydraulic plant for extracting fluids from great depth, such as oil. According to the invention, the plant comprises a cylindrical body (1), provided with an upper compartment (a) and a lower compartment (b), separated by some upper caps (c and d), some medial caps (e and f) and a lower cap (g), where there may slide an upper piston (2) and a lower piston (3), connected by a common rod (4), the slide valve (13) is supplied with oil through a pipe (16) from a hydraulic pump (17), driven by an electric motor (18), the electromagnetic coils (14 and 15) are activated by closing, by the lower piston (3) reached to the end of stroke, a contact (19) mounted inside the medial cap (f) and a contact (20) mounted inside the lower cap (g).
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