Casting core for forming a cooling channel

Details Casting core for forming a cooling channel Casting core for forming a cooling channel

2009-04-21

2011-12-20

Ward, Jessica L (Department: 1735)

Metal founding

Means to shape metallic material

United particle type shaping surface

C164S348000, C164S373000, C123S041350, C123S1960CP, C092S186000

Reexamination Certificate

active

08079403

ABSTRACT:
A soluble casting core for forming a cooling channel in a piston has a formed-on part for forming an oil supply opening and a formed-on part for forming an oil drain opening. In order to improve the mechanical strength of the piston, the oil supply opening and the oil drain opening lie in a different pin boss support of the pin bosses of the piston. A third formed-on part, which lies in the circumferential direction and is configured in oblong manner, is disposed between the first formed-on part and the end of the casting core, which part has a shape that narrows conically towards the end of the casting core and forms a continuation of the cooling channel, which narrows conically towards the end of the cooling channel.

REFERENCES:
patent: 3865179 (1975-02-01), Steinwart et al.
patent: 2009/0025550 (2009-01-01), Benz et al.
patent: 10 2007 044 105 (2008-10-01), None
patent: 2006090159 (2006-04-01), None

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