公开(公告)号：US20180259015A1

公开(公告)日：2018-09-13

申请号：US15973786

申请日：2018-05-08

Applicant: Ener Tools S.A.

Inventor： Juan I. Zubiri ,  Carlos Caunedo ,  Nicolas Pontelli ,  Lucas Young

IPC: F16D57/02

CPC classification number: F16D57/02

Abstract: A braking arrangement for drive heads or pump heads, to be preferably used in a progressing cavity pump (PCP) system in oilfields, consisting of at least one disk moving inside a viscous fluid and facing a static disk, in which mechanical energy is transformed into heat. The viscous brake is a device acting as a function of the rotation speed, in which a higher speed generates a higher braking power caused by the increase of friction among the disks and the fluid. The arrangement may comprise more than one mobile and static disk assemblies, as well as a hollow axis instead of a solid one, to allow housing the pumping rod inside the axis, and may also comprise an anti-reverse bearing.