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:
Mar. 29, 2016
Filed:
Sep. 27, 2012
Advics Co., Ltd., Kariya-shi, JP;
Denso Corporation, Kariya-shi, JP;
Daishi Kato, Nagoya, JP;
Kunihito Ando, Okazaki, JP;
Yuki Nakamura, Kariya-shi, JP;
Takahiro Naganuma, Kariya-shi, JP;
Tomoaki Kawabata, Takahama, JP;
ADVICS CO., LTD., Kariya-Shi, Aichi-Ken, JP;
DENSO CORPORATION, Kariya-Shi, Aichi-Ken, JP;
Abstract
A shaft seal device includes: a rotary shaft; a seal member that is arranged on an outer periphery of the rotary shaft; a liquid chamber; and a seal member accommodation chamber that accommodates the seal member therein, wherein the liquid chamber and the seal member accommodation chamber is separated by a partition wall, wherein the rotary shaft passes through a shaft hole formed in the partition wall and an outer periphery of the rotary shaft is sealed by the seal member, wherein the partition wall is formed with a through-hole penetrating the partition wall, a hollow member is mounted in the through-hole, a protrusion part of the hollow member protrudes toward the seal member accommodation chamber to engage with the seal member, and wherein the liquid chamber and the seal member accommodation chamber communicate with each other through a hole of the hollow member.