Title:
内燃機関のためのピストン及びピストンを作製するための鋳造法
Document Type and Number:
Japanese Patent JP4741479
Kind Code:
B2
Abstract:
The invention relates to a piston ( 1 ), which is comprised of an approximately circular cylindrical upper area ( 5 ) and of a lower area ( 6 ), having two hubs ( 7 ), which are set back toward the piston central axis ( 8 ) so that, in the upper area ( 5 ), recesses ( 12, 12' ) can be made, which are open toward the lower area ( 6 ), in the vicinity of the hubs ( 7 ). In order to make relief cuts ( 13, 13' ) in the area between the hubs ( 7 ) and the upper area ( 5 ), a salt mold part ( 15 ) is placed on the respective window insert ( 14 ). The salt mold part ( 15 ) serves to produce the recesses ( 12, 12' ) as well as the relief cuts ( 13, 13' ) when casting the piston ( 1 ) and is washed out after the piston ( 1 ) has been cast.
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Inventors:
Gottfried Schneitman
Application Number:
JP2006515667A
Publication Date:
August 03, 2011
Filing Date:
June 07, 2004
Export Citation:
Assignee:
MAHLE GmbH
International Classes:
F02F3/22; B22D15/02; B22D19/00; F02F3/00; F16J1/02
Domestic Patent References:
| JP4042246U | ||||
| JP2003502558A | ||||
| JP61157122U |
Foreign References:
| EP0364810A1 | ||||
| DE10142980A1 |
Attorney, Agent or Firm:
Toshio Yano
Takuya Kuno
Einzel Felix-Reinhard
Takuya Kuno
Einzel Felix-Reinhard