Cooling apparatus for internal combustion engine

• Main Authors: Watanabe, Hirotaka, Aoyagi, Takahiko, Yoshida, Masahiro, Yumisashi, Naoto, Yoshida, Masafumi, Takagi, Noboru, Hisaminato, Naoto, Ando, Hirokazu, Kaneko, Rihito, Yamaguchi, Masaaki, Kato, Hirokazu, Nunami, Koji
• Format: Patent
• Language: English
• Published: 12.10.2021
• Subjects: ACTUATING-FLOATS; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES; BLASTING; COCKS; COMBUSTION ENGINES; COOLING OF INTERNAL-COMBUSTION ENGINES; COOLING OF MACHINES OR ENGINES IN GENERAL; CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; DEVICES FOR VENTING OR AERATING; ENGINE PLANTS IN GENERAL; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

A cooling apparatus includes a circulation circuit, a pump, a flow rate adjustment valve, and a controller. The flow rate adjustment valve includes a valve member that rotates to change an open degree of the flow rate adjustment valve and a stopper that moves between a restriction position and a retraction position. The controller is configured to execute, when maintaining the open degree of the flow rate adjustment, a preparatory process of moving the stopper to the restriction position after arranging the stopper at the retraction position and arranging the valve member further in the valve-closing direction than the stopper through control of the pump discharge amount.