Rotierendes Halbabgedichtetes Bohrwerkzeug

Details

Veröffentlichungs-Nr.

EP2990587

Aktenzeichen

EP14182604

Anmeldetag

28. August 2014

Veröffentlichung

1. April 2020

Erteilung

1. April 2020

Rechtsraum

EP

IPC

E21B10/08E21B10/22E21B10/24

Abstract

A rotary drill tool for cutting rock having at least one journal leg (105) mounting a spindle (200) and a respective rotary cone cutter (103). The spindle comprises a plurality of fluid distribution passageways (302, 400) to provide a supply of a cooling and cleaning fluid to the bearing assembly. Vent holes are provided through the cutter to allow an exhaust flow of fluid and an annular seal (509) is provided at a base region of the spindle to maintain a positive fluid pressure within the cutter cavity to prevent dust and dirt ingress.

Anmelder

Firma

Sandvik Intellectual Property AB

Land

🇸🇪 Schweden

Fachgebiete