Title:
バルブタイミング調整装置及びその組み付け方法
Document Type and Number:
Japanese Patent JP4837099
Kind Code:
B2
Abstract:
Provided is a valve timing adjusting device (1) comprising a first rotor (2) fixing a housing (7) having a bearing portion of a camshaft (3), a case (5) having a plurality of protruding shoes (5a) on the inner side and forming a delay oil pressure chamber (10) and an advance oil pressure chamber (11) between the shoes (5a), and a cover (6) closing the delay oil pressure chamber (10) and the advance oil pressure chamber (11), integrally by means of fastening bolts (8), so that it rotates integrally with a crankshaft. Further comprised is a second rotor (4) including a vane rotor (9) having a plurality of vanes (9b) radially, for dividing the delay oil pressure chamber (10) and the advance oil pressure chamber (11), and fixed so integrally to the camshaft (3) as is made relatively rotatable by a predetermined angle in the first rotor (2). Further comprised is an assist spring (22) interposed between the shoes (5a) of the first rotor (2) and the vanes (9b) of the second rotor (4), for urging the second rotor (4) in the advancing direction thereby to adjust the relative position. Further comprised is a cylindrical holder (23) having an opening portion (23a) at one end and a bottom portion (23b) at the other end, for holding one end of the assist spring (22). The case (5) of the first rotor (2) has a through hole (25) extending through the shoes (5a) and an opening portion (25a) in the outermost circumference of the case (5). The assist spring (22) and the holder (23) are arranged in the through hole (25).
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Inventors:
Koji Yumi
Akira Sakata
Hiroyuki Kinukawa
Akira Sakata
Hiroyuki Kinukawa
Application Number:
JP2009526325A
Publication Date:
December 14, 2011
Filing Date:
June 25, 2008
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F01L1/356
Domestic Patent References:
| JP2002541380A | 2002-12-03 | |||
| JPH11229828A | 1999-08-24 | |||
| JP2005155541A | 2005-06-16 | |||
| JP2001227309A | 2001-08-24 |
Attorney, Agent or Firm:
Hideaki Tazawa
Hamada Hatsune
Hamada Hatsune