Bottom covering of a cooling chamber for pistons of internal combustion engines

• US 6,722,263 B2
• Filed: 06/14/2002
• Issued: 04/20/2004
• Est. Priority Date: 12/17/1999
• Status: Active Grant

• Current Assignee: Mahle GmbH (MAHLE-STIFTUNG GmbH)
• Original Assignee: Mahle GmbH (MAHLE-STIFTUNG GmbH)
• Inventors: Kemnitz, Peter, Keller, Klaus, Lochmann, Roland
• Primary Examiner(s): Lopez, F. Daniel
• Application Number:
  US10/149,800
• Publication Number:
  US 20020178910A1
• Time in Patent Office: 676 Days
• Field of Search: 921/86, 921/81.R, 285/921, 285/192
• US Class Current: 92/186
• CPC Class Codes: F02F 3/22 the fluid being liquid
• CPC Class Codes: Y10S 285/921 Snap-fit

Abstract

The aim of the invention is to provide an easy fastening of a tubular supply or a vertical pipe in a bottom covering of a cooling chamber for pistons of internal combustion engines, e.g. in a circular covering of a cooling channel of an articulated-skirt piston. To this end, the vertical tube or the tubular supply is clipped into the bottom covering or is fastened thereto by a detent connection.

Claims

1. A bottom covering of a cooling chamber for pistons of internal combustion engines comprising approximately circular covering, with a tubular inlet line being fastened on the covering, characterized in that the tubular inlet line is secured on the covering by a detent connection.

2. The bottom covering of a cooling chamber for pistons according to claim 1, characterized in that the tubular inlet line is made of plastic.

3. The bottom covering of a cooling chamber for pistons according to claim 1, characterized in that the cross section of the tubular inlet line deviates from the circular shape.

4. The bottom covering of a cooling chamber for pistons according to claim 3, characterized in that the cross section is oval.