Global Patent Index - EP 2787189 A4

EP 2787189 A4 20150520 - ENGINE COOLING APPARATUS AND ENGINE COOLING METHOD

Title (en)

ENGINE COOLING APPARATUS AND ENGINE COOLING METHOD

Title (de)

MOTORKÜHLUNGSVORRICHTUNG UND MOTORKÜHLUNGSVERFAHREN

Title (fr)

APPAREIL DE REFROIDISSEMENT DE MOTEUR ET PROCÉDÉ DE REFROIDISSEMENT DE MOTEUR

Publication

EP 2787189 A4 20150520 (EN)

Application

EP 12853010 A 20121127

Priority

  • JP 2011258712 A 20111128
  • JP 2012080646 W 20121127

Abstract (en)

[origin: EP2787189A1] An object of the invention relates to a cooling system for an engine having an EGR system and the like and a cooling method for cooling the engine and is to provide a system and method for cooling an engine which realize a reduction in the capacity of a main radiator by giving a sub-radiator a function to assist the main radiator, a reduction in cost and an effective use of an installation space. A sub-control valve (22) is provided which detects a temperature of a liquid coolant in a main circulation path and separates part of the liquid coolant which is to be sent to a main radiator (16) to send it into a sub-circulation path in case the detected temperature of the liquid coolant exceeds an upper limit value of the temperature of the liquid coolant when an engine runs in a steady state, and the liquid coolant which is sent into the sub-circulation path (12) by the sub-control valve (22) is cooled in a sub-radiator (28) and is then caused to flow into a cooler device, while the liquid coolant in the sub-circulation path (12) is separated to be returned to an upstream side of a first pump (18) in the main circulation path (8).

IPC 8 full level

F01P 3/18 (2006.01); F01P 3/20 (2006.01); F01P 5/12 (2006.01); F01P 7/16 (2006.01); F02M 25/07 (2006.01)

CPC (source: EP US)

F01P 3/12 (2013.01 - US); F01P 3/20 (2013.01 - EP US); F01P 7/165 (2013.01 - EP US); F02M 26/33 (2016.02 - EP US); F01P 2005/105 (2013.01 - EP US); F01P 2007/146 (2013.01 - US); F01P 2037/02 (2013.01 - EP US); F01P 2060/00 (2013.01 - US); F01P 2060/02 (2013.01 - EP US); F01P 2060/16 (2013.01 - EP US); F01P 2060/18 (2013.01 - US)

Citation (search report)

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)

EP 2787189 A1 20141008; EP 2787189 A4 20150520; CN 103987935 A 20140813; JP 2013113182 A 20130610; US 2014326198 A1 20141106; WO 2013080980 A1 20130606

DOCDB simple family (application)

EP 12853010 A 20121127; CN 201280058311 A 20121127; JP 2011258712 A 20111128; JP 2012080646 W 20121127; US 201214360787 A 20121127