US 2013/0092341 A1 · METHOD AND DEVICE FOR CASTING A PISTON FOR AN INTERNAL COMBUSTION ENGINE

Abstract

In a method for casting a piston for an internal combustion engine, after solidification of the surface layer in the region of the piston-pin bores (12), at least one mandrel provided there is withdrawn and the region of at least one piston-pin bore (12) is cooled by coolant supplied through at least one mandrel. A device for casting pistons for internal combustion engines has at least one mandrel which can be withdrawn from the region of a piston-pin bore (12) and through which a coolant for cooling the region of the piston-pin bores (12) can be supplied.

Claims11

Dependent claims

A method of casting a piston for an internal combustion engine having piston-pin bores, comprising:

establishing during casting boundary layer solidification in the region of the piston-pin bores, and about at least one sleeve provided in the region of at least one of the piston-pin bores;
supplying a cooling agent through the at least one sleeve and thereafter withdrawing the sleeve.

Dependencies are inferred from the claim text.

Facts

Application

13/637,436Filed 24 Mar 2011

Priority

DE 10 2010 003 346.426 Mar 2010

Published

18 Apr 2013

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

B22D 25/02
Special casting characterised by the nature of the product: by its peculiarity of shape; of works of art
B22C 9/06
Moulds or cores ; Moulding processes: permanent moulds for shaped castings
B22C 9/101
Cores; Manufacture or installation of cores: permanent cores
B22D 15/02
Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or…: of…

Method and device for casting a piston for an internal combustion engine

Life of this patent

Method and device for casting a piston for an internal combustion engine

Life of this patent

Abstract

Claims11