Title:
VARIABLE VALVE TIMING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/054408
Kind Code:
A1
Abstract:
Disclosed is a variable valve timing device provided with: a camshaft (1); a sprocket (2) which is disposed coaxially with the camshaft (1); and a varying mechanism part (3) which varies the phase of the camshaft (1) with respect to the sprocket (2). The varying mechanism part (3) comprises: an armature (6) that is supported so as to be movable in an axial direction; an electromagnet (7) that attracts the armature (6) in an axial direction when current is applied thereto; and a cam mechanism (8) that converts the axial movement of the armature (6) into rotation of the camshaft (1) relative to the sprocket (2).
Inventors:
SAITO TAKAHIDE (JP)
SATO KOJI (JP)
SATO KOJI (JP)
Application Number:
PCT/JP2018/033808
Publication Date:
March 21, 2019
Filing Date:
September 12, 2018
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F01L1/356
Foreign References:
| JP2003286814A | 2003-10-10 | |||
| JP2005133544A | 2005-05-26 | |||
| JP2003074602A | 2003-03-12 | |||
| JP2006226144A | 2006-08-31 | |||
| JP2010077849A | 2010-04-08 |
Attorney, Agent or Firm:
KAMADA Naoya et al. (JP)
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