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. 18, 1979
Filed:
Jul. 03, 1978
Hajime Akado, Anjo, JP;
Yoshiro Uchida, Toyota, JP;
Kenichi Kubota, Kariya, JP;
Toshiharu Hasebe, Kariya, JP;
Akihide Yamaguchi, Kariya, JP;
Tsutomu Tomita, Okazaki, JP;
Suminobu Ootsubo, Toyota, JP;
Nippondenso Co., Ltd., Kariya, JP;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JP;
Abstract
A thermostatic valve for intake air temperature compensation for an internal combustion engine includes a housing formed with first, second, and third openings leading, respectively, to the atmosphere, a negative pressure motor, and the intake manifold of the engine. To this housing is secured a temperature sensor including a piston rod to be actuated by a thermally expandable element whose volume increases or decreases with a change in temperature. A valve element to be moved into and out of contact with a valve seat by the piston rod of the temperature sensor is accommodated in a casing. Inside the casing a holed partition member is disposed between the first and third openings and between the second and third openings, and a check valve designed to open in one direction only is located between the partition member and the third opening.