Invention Grant
- Patent Title: Cast steel piston for internal combustion engines
- Patent Title (中): 内燃机铸钢活塞
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Application No.: US12302723Application Date: 2007-06-12
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Publication No.: US08528513B2Publication Date: 2013-09-10
- Inventor: Tilmann Haug , Wolfgang Rehm , Karl Weisskopf
- Applicant: Tilmann Haug , Wolfgang Rehm , Karl Weisskopf
- Applicant Address: DE Stuttgart
- Assignee: Daimler AG
- Current Assignee: Daimler AG
- Current Assignee Address: DE Stuttgart
- Agency: Patent Central LLC
- Agent Stephan A. Pendorf
- Priority: DE102006030699 20060630
- International Application: PCT/EP2007/005155 WO 20070612
- International Announcement: WO2008/000347 WO 20080103
- Main IPC: F02F3/00
- IPC: F02F3/00 ; F01P1/04 ; C22C38/18 ; C22C38/58
Abstract:
The invention relates to a steel piston for internal combustion engines, comprising at least one piston upper part (12) provided with a combustion cavity (11) and an annular wall (5), and a piston lower part (13) provided with a connecting rod bearing (8). The steel piston is cast as a single component from a reduced-density steel alloy or a special steel alloy in the same material by means of a low-pressure casting method.
Public/Granted literature
- US20090178640A1 CAST STEEL PISTON FOR INTERNAL COMBUSTION ENGINES Public/Granted day:2009-07-16
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