(19)
(11) EP 2 333 268 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.01.2012 Bulletin 2012/01

(43) Date of publication A2:
15.06.2011 Bulletin 2011/24

(21) Application number: 10191902.5

(22) Date of filing: 19.11.2010
(51) International Patent Classification (IPC): 
F01P 7/16(2006.01)
(84) Designated Contracting States:
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
Designated Extension States:
BA ME

(30) Priority: 24.11.2009 JP 2009266408

(71) Applicant: AISIN SEIKI KABUSHIKI KAISHA
Kariya-shi, Aichi 448-8650 (JP)

(72) Inventors:
  • Onozawa, Satoru
    Kariya-shi Aichi 448-8650 (JP)
  • Suzuki, Takashi
    Toyota-shi Aichi 471-8571 (JP)

(74) Representative: Kramer - Barske - Schmidtchen 
Landsberger Strasse 300
80687 München
80687 München (DE)

   


(54) Cooling system for engine


(57) A cooling system (1) includes a cooling portion (2) for flowing a coolant therethrough, a coolant sensitive sensor portion (3) detecting a temperature of the coolant, a heat exchanging device (4) using a heat of the coolant, a circulation flow varying device (5) for varying a circulation flow, a circulation path (6) for flowing the coolant therethrough, and a controller (7) for regulating the circulation flow by controlling the circulation flow varying device while referring to the temperature of the coolant upon a receipt of a request for a requested flow from the heat exchanging device. The controller (7) determines a condition for warming-up when the warming-up of the engine is performed in accordance with the temperature of the coolant, controls the circulation flow varying device for warming-up the engine without circulating the coolant, and increases the circulation flow to the requested flow for a predetermined period of time when the requested flow is requested during the warming-up.







Search report