SUBSEA ELECTRIC ACTUATOR - PETROLVALVES S R L

Title:

SUBSEA ELECTRIC ACTUATOR

Document Type and Number:

WIPO Patent Application WO/2017/016690

Kind Code:

A9

Abstract:

A subsea electric actuator (100) includes a housing (1) configured to be filled with dielectric oil, an electric motor (2), a brake (3), a clutch (4), and a spring (9). The clutch (4) and the brake (3) are configured to maintain the spring (9) in a compressed position. In certain embodiments, the actuator (100) further includes a planetary gear (5) and a multi-turn gear assembly, such that the planetary gear (5) and the multi-turn gear assembly are configured to multiply the torque provided by the electric motor (2). The actuator (100) can further include a ball screw (7) and a nut screw (8) configured to convert the torque provided by the motor (2) into linear thrust to compress the spring (9).

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Inventors:

GARRONE MARCO (IT)
AMBROSINI IVAN (IT)
CAZZOLA TIZIANO (IT)

Application Number:

PCT/EP2016/059900

Publication Date:

June 01, 2017

Filing Date:

May 03, 2016

Export Citation:

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Assignee:

PETROLVALVES S R L (IT)

International Classes:

F16K31/04; E21B33/035; F16H25/20; F16K31/50

Attorney, Agent or Firm:

SPINA, Alessandro et al. (IT)

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