Title:
軸部材の摺動構造およびインジェクタ
Document Type and Number:
Japanese Patent JP4007202
Kind Code:
B2
Abstract:
In a sliding structure in which a shaft member is retained slidably in a guide hole, the lack of an oil film caused by the edge contact of the shaft member to which a pressing load in the axial direction is applied is prevented. With the fact being taken into account that end portions 25 c 1 and 25 c 2 , which are always in slidable contact with a side surface 1232 a of a guide hole 1232 , of a side surface 25 c of a shaft member 251 are the partial edge portion, a plurality of labyrinth grooves 2501 and 2502 are formed in the end portions 25 c 1 and 25 c 2 , respectively, thereby it is possible for an oil film to cover the entire contact portion without increasing the groove width extremely. Because the groove width is not increased extremely, the length of the sliding portions can be ensured.
Inventors:
Tetsuya Yoshimura
Shuichi Matsumoto
Shuichi Matsumoto
Application Number:
JP2003014882A
Publication Date:
November 14, 2007
Filing Date:
January 23, 2003
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02M61/16; F02M47/00; F02M47/02; F02M51/06; F02M59/46; F02M61/12; F02M63/00
Domestic Patent References:
| JP2002295342A | ||||
| JP2000337222A |
Foreign References:
| WO2003004865A1 |
Attorney, Agent or Firm:
Hirohiko Usui
Takashi Ito
Takashi Ito