The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 14, 2021
Filed:
Oct. 22, 2019
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Noboru Takagi, Toyota, JP;
Hirokazu Kato, Nisshin, JP;
Rihito Kaneko, Miyoshi, JP;
Naoto Hisaminato, Toyota, JP;
Hirokazu Ando, Seto, JP;
Masaaki Yamaguchi, Okazaki, JP;
Hirotaka Watanabe, Anjo, JP;
Masahiro Yoshida, Toyota, JP;
Koji Nunami, Nagoya, JP;
Naoto Yumisashi, Nagoya, JP;
Masafumi Yoshida, Konan, JP;
Takahiko Aoyagi, Anjo, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
AISIN SEIKI KABUSHIKI KAISHA, Kariya, JP;
Abstract
A cooling apparatus for an internal combustion engine includes a pump, a radiator, a flow rate adjustment valve, a bypass passage, 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 valve member biasing component that biases the valve member in a valve-closing direction in which the open degree decreases. The valve member rotates in a valve-opening direction in which the open degree increases when a pressure difference increases between positions upstream and downstream of the valve member in a flow direction of coolant in the circulation circuit and rotate in the valve-closing direction when the pressure difference decreases. The controller increases the pump discharge amount as a target radiator flow rate that is a target of an amount of coolant passing through the radiator increases.