Invention Application
- Patent Title: Wear-Optimised Production of Conical Injection Holes
- Patent Title (中): 磨损优化的锥形注射孔的生产
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Application No.: US14342934Application Date: 2012-08-28
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Publication No.: US20150083829A1Publication Date: 2015-03-26
- Inventor: Heinrich Werger
- Applicant: Heinrich Werger
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Priority: ATA1269/2011 20110906
- International Application: PCT/AT2012/000223 WO 20120828
- Main IPC: F02M61/16
- IPC: F02M61/16 ; F02M61/18

Abstract:
A method for producing injection holes in fuel injection nozzles for internal combustion engines. An injection hole is formed by at least one abrading manufacturing method. An injection nozzle is subsequently subjected to a hardening treatment at least in the region of the injection hole, such that the injection hole surface is hardened over the entire axial length thereof.
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