Title:
VALVE TIMING CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE AND SEAL STRUCTURE FOR VALVE TIMING CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/055951
Kind Code:
A1
Abstract:
The present invention is equipped with: an electric motor 12 for changing the relative rotational phase of a sprocket 1 and a camshaft 2; a cover member 4; a chain case 22 arranged on the outer peripheral side of a motor housing 14; and an oil seal 42 for sealing between the motor housing and the chain case. The oil seal is secured with bolts 44 while securing parts 45 on the outer peripheral side of the oil seal are sandwiched between an inside surface 28f of a cover main body 28 and a front-end surface 22b of the chain case, and the oil seal has an annular seal part 46 elastically contacting the outer peripheral surface of the motor housing. Before the oil seal is secured with the bolts the entire oil seal is able to move in the radial direction via bolt insertion holes 45e. Thus, a reduction in sealing performance can be prevented while ensuring concentricity of the motor housing and the oil seal.
Inventors:
IWASE YOSUKE (JP)
MANAKO MASATO (JP)
ITAKURA HIROYUKI (JP)
YAMADA YOSHIHIKO (JP)
MANAKO MASATO (JP)
ITAKURA HIROYUKI (JP)
YAMADA YOSHIHIKO (JP)
Application Number:
PCT/JP2017/029261
Publication Date:
March 29, 2018
Filing Date:
August 14, 2017
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F01L1/352; F01L1/356
Domestic Patent References:
| WO2015093423A1 | 2015-06-25 |
Foreign References:
| JP2016048053A | 2016-04-07 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
Download PDF: