EP 3301284 B1 20201125 - PISTON WITH COOLING ARRANGEMENT
Title (en)
PISTON WITH COOLING ARRANGEMENT
Title (de)
KOLBEN MIT ANORDNUNG ZUR KÜHLUNG
Title (fr)
PISTON AVEC DISPOSITIF DE REFROIDISSEMENT
Publication
Application
Priority
EP 16191417 A 20160929
Abstract (en)
[origin: EP3301284A1] A piston (1) for an engine (100) comprises a cooling arrangement that allows for an increased cooling efficiency of an outer peripheral wall (5) of a piston body (4) including a plurality of piston ring grooves (10, 12, 14). Lubricant is supplied to an outer plenum (22) formed adjacent to outer peripheral wall (5) via a cooling passage (26) that extends at an upwardly-inclined angle from a central plenum (28) towards the outer plenum (22). Lubricant that enters cooling passage (26) is imparted with a corresponding flow velocity component due to the upwardly-inclined orientation of cooling passage (26) prior to entering outer plenum (22) to flow along an inner surface of the same. A heat transfer between the lubricant and the inner surface of the outer plenum (22) is increased due to the resulting flow of lubricant.
IPC 8 full level
CPC (source: EP)
F02F 3/22 (2013.01); F02F 3/0015 (2013.01)
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 RS SE SI SK SM TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 16191417 A 20160929