Title:
COOLER FOR LIQUID-COOLED INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP3644262
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To control water temperature of a pump inlet with high accuracy without measuring a flow rate.
SOLUTION: A flow ratio Vrb of a radiator flow Vr to a bypass flow Vb is determined on the basis of a pump water temperature Tp (first water temperature sensor 621), a bypass water temperature Tb (second water temperature sensor 622) and a radiator water temperature Tr (third water temperature sensor 623), and the relationship between the flow rate Vrb and a valve opening is determined in advance and mapped. In an actual cooler, the valve opening is determined based on the flow ratio Vrb and the map. Whereby the water temperature of a pump inlet can be controlled with high accuracy without detecting the flow rate.
Inventors:
Kazutaka Suzuki
Eizo Takahashi
Eizo Takahashi
Application Number:
JP21449398A
Publication Date:
April 27, 2005
Filing Date:
July 29, 1998
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F01P7/04; F01P7/16; F01P7/14; (IPC1-7): F01P7/16; F01P7/04
Domestic Patent References:
| JP783052A |
Attorney, Agent or Firm:
Yoji Ito
Takahiro Miura
Takahiro Miura