EP 2150380 A2 20100210 - PERCUSSION DEVICE ACTUATED BY A PRESSURISED NON COMPRESSIBLE FLUID
Title (en)
PERCUSSION DEVICE ACTUATED BY A PRESSURISED NON COMPRESSIBLE FLUID
Title (de)
DURCH EINE UNTER DRUCK STEHENDE UNKOMPRIMIERBARE FLÜSSIGKEIT BETÄTIGTE SCHLAGVORRICHTUNG
Title (fr)
APPAREIL À PERCUSSIONS MÛ PAR UN FLUIDE INCOMPRESSIBLE SOUS PRESSION
Publication
Application
Priority
- FR 2008050877 W 20080521
- FR 0703727 A 20070525
Abstract (en)
[origin: US8167055B2] According to the invention, the body of the apparatus includes a flow rate adjustment device including a calibrated opening provided on a high-pressure fluid supply circuit, a bore formed in the body and in which is mounted a slider having a first face located in a first chamber connected to a high-pressure fluid supply circuit upstream from the calibrated opening and a second face located in a second chamber connected to the high-pressure fluid supply circuit downstream from the calibrated opening, the bore receiving the slide including an annular groove connected to a low pressure feedback circuit. The slider is adapted for connecting the annular groove to the first chamber when the pressure difference on either side of the calibrated opening increases beyond a predetermined value in order to divert a portion of the fluid flow supplied by the high-pressure fluid supply circuit to the feedback circuit.
IPC 8 full level
B25D 9/12 (2006.01); B25D 9/14 (2006.01); F15B 11/05 (2006.01)
CPC (source: EP KR US)
B25D 9/02 (2013.01 - KR); B25D 9/12 (2013.01 - EP KR US); B25D 9/14 (2013.01 - KR); E02F 3/966 (2013.01 - EP US); E02F 9/2217 (2013.01 - EP US); E02F 9/226 (2013.01 - EP US); F15B 11/0423 (2013.01 - EP US); F15B 11/05 (2013.01 - KR); B25D 2250/125 (2013.01 - EP US); B25D 2250/195 (2013.01 - EP US); F15B 2211/413 (2013.01 - EP US); F15B 2211/428 (2013.01 - EP US); F15B 2211/45 (2013.01 - EP US); F15B 2211/50536 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
FR 2916377 A1 20081128; FR 2916377 B1 20090724; AT E553889 T1 20120515; CN 101678542 A 20100324; CN 101678542 B 20111228; EP 2150380 A2 20100210; EP 2150380 B1 20120418; ES 2384079 T3 20120629; KR 101455705 B1 20141028; KR 20100017110 A 20100216; US 2010084152 A1 20100408; US 8167055 B2 20120501; WO 2008149030 A2 20081211; WO 2008149030 A3 20090129
DOCDB simple family (application)
FR 0703727 A 20070525; AT 08805823 T 20080521; CN 200880016385 A 20080521; EP 08805823 A 20080521; ES 08805823 T 20080521; FR 2008050877 W 20080521; KR 20097024030 A 20080521; US 45118608 A 20080521