Global Patent Index - EP 2483547 A1

EP 2483547 A1 20120808 - STEEL PISTON FOR INTERNAL COMBUSTION ENGINES

Title (en)

STEEL PISTON FOR INTERNAL COMBUSTION ENGINES

Title (de)

STAHLKOLBEN FÜR VERBRENNUNGSMOTOREN

Title (fr)

PISTON EN ACIER POUR MOTEURS À COMBUSTION INTERNE

Publication

EP 2483547 A1 20120808 (DE)

Application

EP 10750070 A 20100903

Priority

  • DE 102009048124 A 20091002
  • EP 2010005417 W 20100903

Abstract (en)

[origin: WO2011038823A1] The invention relates to a steel piston, comprising a piston upper part (12) having a combustion recess (11) and an annular wall (5), as well as a piston lower part (13) having a piston skirt or piston barrel and connecting rod bearing (8) for internal combustion engines having crankcases made of light metal alloys, wherein at least the piston lower part consists of a steel alloy comprising a thermal expansion coefficient in the range of 13 to 20 * 10-6 1/K.

IPC 8 full level

F02F 3/00 (2006.01)

CPC (source: EP US)

C22C 38/02 (2013.01 - EP US); C22C 38/40 (2013.01 - EP US); C22C 38/58 (2013.01 - EP US); F02F 3/0084 (2013.01 - EP US); F02F 3/00 (2013.01 - US); F02F 3/0092 (2013.01 - US); F02F 3/02 (2013.01 - US); F05C 2201/021 (2013.01 - US); F05C 2201/0448 (2013.01 - EP US); F05C 2251/042 (2013.01 - EP US)

Citation (search report)

See references of WO 2011038823A1

Citation (examination)

  • DE 102006030699 A1 20080103 - DAIMLER CHRYSLER AG [DE]
  • WO 2006048153 A1 20060511 - KS KOLBENSCHMIDT GMBH [DE], et al
  • US 5816211 A 19981006 - ATMUR STEVEN DONALD [US], et al
  • "ASM ready reference: thermal properties of metals (#06702G)", 1 January 2002, ASM INTERNATIONAL, US, ISBN: 978-0-87170-768-0, article FRAN CVERNA: "Passage Chapter 2: Thermal Expansion", pages: i-vi, 9 - 16, XP055233442
  • JOSEPH W MCENERNEY: "Experience manufacturing alloy 19D (UNS S32001)", 1 January 2001 (2001-01-01), XP055354805, Retrieved from the Internet <URL:http://www.stainless-steel-world.net/pdf/SSWCE01_duplex_McEnerney.pdf?resourceId=200> [retrieved on 20170314]

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DOCDB simple family (publication)

DE 102009048124 A1 20110407; EP 2483547 A1 20120808; JP 2013506085 A 20130221; JP 5859440 B2 20160210; US 2012174899 A1 20120712; US 9051896 B2 20150609; WO 2011038823 A1 20110407

DOCDB simple family (application)

DE 102009048124 A 20091002; EP 10750070 A 20100903; EP 2010005417 W 20100903; JP 2012531256 A 20100903; US 201013390717 A 20100903