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1. (WO2018077576) DEVICE FOR ABRASIVE FLUID-JET CUTTING

Pub. No.:    WO/2018/077576    International Application No.:    PCT/EP2017/075117
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Thu Oct 05 01:59:59 CEST 2017
IPC: B24C 5/02
B24C 7/00
Applicants: ROBERT BOSCH GMBH
Inventors: FEUCHT, Guenter
KULHAVY, Felix
IBEN, Uwe
GOOSS, Nicolas
KROACK, Peter
OBERWEIN, Florian
PAAL, Valentin
SCHUETZENBERGER, Raymond
Title: DEVICE FOR ABRASIVE FLUID-JET CUTTING
Abstract:
Device for abrasive fluid-jet cutting with a compressor unit (1) for compressing a fluid, which can be fed to a nozzle (25) in the form of a stream of high-pressure fluid, wherein the nozzle (25) is designed for discharging a high-pressure fluid jet (33). The stream of fluid to the nozzle (25) can be interrupted, or at least greatly restricted, by an interrupter unit (6), wherein the interrupter unit (6) comprises a control chamber (8), which can be filled with high-pressure fluid and can be connected to a drainage chamber (19) by way of a control valve (14). The quantity of control fluid removed by way of the control valve (14) flows through a feed line (20) into a mixing chamber (27), wherein an abrasive channel (22) carrying abrasive particles opens out into the feed line (20) and the quantity of control fluid mixes with the high-pressure fluid jet (33).