Invention Grant
- Patent Title: Direct drill bit drive for tools on the basis of a heat engine
- Patent Title (中): 在热机的基础上直接钻头驱动工具
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Application No.: US13882509Application Date: 2011-10-21
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Publication No.: US09328559B2Publication Date: 2016-05-03
- Inventor: Marcus Schwarz , Ulf Kirsten , Matthias Reich , Silke Röntzsch , Florian Mertens
- Applicant: Marcus Schwarz , Ulf Kirsten , Matthias Reich , Silke Röntzsch , Florian Mertens
- Agent Michael Soderman
- Priority: DE102010050244 20101030
- International Application: PCT/DE2011/001878 WO 20111021
- International Announcement: WO2012/055392 WO 20120503
- Main IPC: E21B4/14
- IPC: E21B4/14 ; E21B4/06 ; F02G1/043 ; F01B11/00
Abstract:
In a direct drill bit drive for tools for comminuting brittle materials and penetrating into brittle materials by percussive impact on the basis of a heat engine operated with a gaseous working medium, the heat engine is a hot gas engine operating in accordance with a real Stirling cycle process.
Public/Granted literature
- US20130220656A1 DIRECT DRILL BIT DRIVE FOR TOOLS ON THE BASIS OF A HEAT ENGINE Public/Granted day:2013-08-29
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