US 12,241,319 B2
Flushing element, rock drilling machine and method
Timo Kela, Tampere (FI); Jussi Peurala, Tampere (FI); and Esa Laakkola, Tampre (FI)
Assigned to Sandvik Mining and Construction Oy, Tampere (FI)
Appl. No. 18/277,924
Filed by SANDVIK MINING AND CONSTRUCTION OY, Tampere (FI)
PCT Filed Feb. 18, 2022, PCT No. PCT/EP2022/054055
§ 371(c)(1), (2) Date Aug. 18, 2023,
PCT Pub. No. WO2022/175438, PCT Pub. Date Aug. 25, 2022.
Claims priority of application No. 21158220 (EP), filed on Feb. 19, 2021.
Prior Publication US 2024/0133254 A1, Apr. 25, 2024
Prior Publication US 2024/0229581 A9, Jul. 11, 2024
Int. Cl. E21B 21/01 (2006.01); E21B 6/04 (2006.01); E21B 7/02 (2006.01)
CPC E21B 21/01 (2013.01) [E21B 6/04 (2013.01); E21B 7/025 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A flushing element of a rock drilling machine, the flushing element being configured to surround a shank adapter passing through the flushing element; and wherein the flushing element comprising:
a feed opening arranged for feeding flushing agent to a flushing space surrounding the shank adaptor; and
at least two sealing housings arranged for receiving flushing sealings and wherein the sealing housings are located at axial distance from each other and on opposite sides relative to the flushing space, wherein the flushing element has a split configuration having two halves mountable to each other in a transverse direction relative to an axial direction of the shank adapter, and wherein the halves define together an axial opening inside which the shank adapter is mountable.