Title:
DRIVE DEVICE, VALVE DEVICE EQUIPPED WITH DRIVE DEVICE, AND TURBOCHARGER LINK DRIVE MECHANISM
Document Type and Number:
WIPO Patent Application WO/2019/150436
Kind Code:
A1
Abstract:
This drive device is provided with a shaft and a tubular bushing formed with an insertion hole permitting insertion of the shaft. The insertion hole includes an opening portion having an inner diameter that decreases from one end surface toward another end surface of the bushing, and a small-diameter hole portion extending from an end of the opening portion toward the other end surface. The shaft includes a shaft portion having an outer diameter smaller than an inner diameter of the small-diameter hole portion, and an abutting portion having an outer diameter greater than the inner diameter of the small-diameter hole portion. The bushing has a seal surface defining the opening portion, and is configured such that a gap formed between the shaft and the bushing in the insertion hole is sealed as the abutting portion of the shaft abuts on the seal surface of the bushing in an axis direction of the insertion hole.
Inventors:
ISHIZAKI TATSUYA (JP)
ISHII YUTA (JP)
FUTAE TAKAYA (JP)
HAYASHI NORIYUKI (JP)
ISHII YUTA (JP)
FUTAE TAKAYA (JP)
HAYASHI NORIYUKI (JP)
Application Number:
PCT/JP2018/002990
Publication Date:
August 08, 2019
Filing Date:
January 30, 2018
Export Citation:
Assignee:
MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD (JP)
International Classes:
F02B37/24; F02B37/18
Foreign References:
| JPH01179132U | 1989-12-22 | |||
| JP2016186241A | 2016-10-27 | |||
| JP2013530337A | 2013-07-25 | |||
| US20150097345A1 | 2015-04-09 | |||
| JP2016186241A | 2016-10-27 |
Other References:
See also references of EP 3730759A4
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (JP)
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