Invention Grant
- Patent Title: Cooling device for internal combustion engine and control method for cooling device
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Application No.: US15125336Application Date: 2014-09-18
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Publication No.: US09726068B2Publication Date: 2017-08-08
- Inventor: Atsushi Murai , Tomoyuki Murakami , Shigeyuki Sakaguchi , Yuichi Toyama , Masahiko Watanabe , Hideaki Nakamura
- Applicant: Hitachi Automotive Systems, Ltd.
- Applicant Address: JP Hitachinaka-shi
- Assignee: Hitachi Automotive Systems, Ltd.
- Current Assignee: Hitachi Automotive Systems, Ltd.
- Current Assignee Address: JP Hitachinaka-shi
- Agency: Crowell & Moring LLP
- Priority: JP2014-048707 20140312
- International Application: PCT/JP2014/074704 WO 20140918
- International Announcement: WO2015/136747 WO 20150917
- Main IPC: F01P7/14
- IPC: F01P7/14 ; F01P7/16 ; F01P3/02 ; F01P5/10

Abstract:
The present invention relates to a cooling device and a control method for the same. This cooling device includes: a first cooling liquid line routed by way of a cylinder head and a radiator; a second cooling liquid line routed by way of a cylinder block while bypassing the radiator; an electric flow rate control valve whose inlet is connected to the first and second cooling liquid lines, and whose outlet is connected to the intake side of an electric water pump; and a bypass line that branches off from the first cooling liquid line at a point between the cylinder head and the radiator and that joins to the outlet of the flow rate control valve while bypassing the radiator. A control unit controls the flow rate control valve according to the temperature of the cylinder head and the temperature of the cylinder block.
Public/Granted literature
- US20170107891A1 Cooling Device for Internal Combustion Engine and Control Method for Cooling Device Public/Granted day:2017-04-20
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