EP 1546536 B1 20090603 - SINGLE-PART COOLING CHANNEL PISTON FOR AN INTERNAL COMBUSTION ENGINE
Title (en)
SINGLE-PART COOLING CHANNEL PISTON FOR AN INTERNAL COMBUSTION ENGINE
Title (de)
EINTEILIGER KUEHLKANALKOLBEN FUER EINEN VERBRENNUNGSMOTOR
Title (fr)
PISTON MONOBLOC A CONDUITE DE REFROIDISSEMENT POUR MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- DE 0303116 W 20030919
- DE 10244510 A 20020925
Abstract (en)
[origin: US6698392B1] A single-part cooling channel piston for a combustion engine with a piston head of forged steel comprises a combustion bowl in the piston crown, a ring wall with ring belt and an all-round closed cooling channel level with the ring belt. The piston skirt is connected to the pin bosses attached to the piston head. Inexpensive manufacture together with improved cooling and good form stability of the piston is achieved by providing the cooling channel with holes spread over its circumference towards the piston crown and spaced such that the piston material present between such holes forms supporting ribs for the piston crown.
IPC 8 full level
F02F 3/22 (2006.01)
CPC (source: EP KR US)
F02F 3/22 (2013.01 - KR); F02F 3/225 (2013.01 - EP US); F05C 2201/0448 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
US 6698392 B1 20040302; BR 0314798 A 20050726; BR 0314798 B1 20121002; CN 100368674 C 20080213; CN 1685142 A 20051019; DE 10244510 A1 20040408; DE 50311581 D1 20090716; EP 1546536 A1 20050629; EP 1546536 B1 20090603; HK 1078916 A1 20060324; JP 2006501392 A 20060112; KR 20050057589 A 20050616; WO 2004029443 A1 20040408
DOCDB simple family (application)
US 27025602 A 20021011; BR 0314798 A 20030919; CN 03822839 A 20030919; DE 0303116 W 20030919; DE 10244510 A 20020925; DE 50311581 T 20030919; EP 03769202 A 20030919; HK 05110759 A 20051125; JP 2004538730 A 20030919; KR 20057005251 A 20050325