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:
Oct. 06, 2020
Filed:
Jan. 26, 2018
Otics Corporation, Nishio-shi, Aichi, JP;
Kubota Corporation, Osaka-shi, Osaka, JP;
Kazunori Kawahara, Nishio, JP;
Masayasu Takami, Sakai, JP;
OTICS CORPORATION, Nishio-Shi, Aichi, JP;
KUBOTA CORPORATION, Osaka-Shi, Osaka, JP;
Abstract
In a tappet with a built-in lash adjuster, hydraulic oil is prevented from leaking from a low pressure chamber during a long-period stop. A tappet () includes a hydraulic lash adjuster () which supports a lower end portion of a push rod () and a tappet case () to which the lash adjuster () is internally fitted and which is reciprocally displaced in a vertical direction according to a rotating cam (). An inner peripheral surface of the tappet case () is provided with an air-vent passage () through which air existing between the tappet case () and the lash adjuster () can be discharged upward when the lash adjuster () is being assembled.