SCREW GE-ROTOR HYDRAULIC MACHINE STARTER Russian patent published in 2010 - IPC F01C1/107 F04C2/107 E21B4/02 

FIELD: oil-and-gas industry.

SUBSTANCE: screw ge-rotor hydraulic machine starter includes a void case, a starter barrel with internal multithread tooth installed in it, also a fixed elastomer cover with internal multithread tooth. The barrel created from a set of installed in a row ring or end plates and installed in the case with ring cavity formation, filled with metal or elastomer. End plates have diametre, equal to the case internal diametre. All the plates have internal holes; starter profile shaped, installed with an equal angle displacement relatively to each other and form internal multithread surface with their edges. Ring plates stiffly connected between each other. End plates stiffly connected to ring plates and the case, for instance - welded. On the end plates external edges executed not less than three cavities.

EFFECT: screw ge-rotor hydraulic machine starter reliability and recourse increase due to the elastomer cover coupling strength increase, specified with the starter barrel developed surface creation.

6 cl, 9 dwg