Title:
流体軸受装置
Document Type and Number:
Japanese Patent JP3613309
Kind Code:
B2
Abstract:
A hydraulic bearing device includes a cylindrical bearing metal (1, 20), a groove-like pocket (4, 21), a dynamic pressure generation land (6), a fluid flowing space (7, 14, 23) and an oil supply hole (8). The cylindrical bearing metal (1, 20) supports a rotating shaft (S). The pocket (4, 21) is formed in an inner peripheral surface of the bearing metal (1, 20). The pocket (4, 21) defines the dynamic pressure generation land (6). The fluid flowing space (7, 14, 23) is formed in the dynamic pressure generation land (6). The oil supply hole (8) supplies fluid from a fluid pressure source (50) to the pocket (4, 21) and the fluid flowing space (7, 14, 23). The dynamic pressure generation land (6) which has been heated due to fluid friction is cooled by the fluid passing through the fluid flowing space (7, 14, 23) formed in the dynamic pressure generation land (6). It is thus possible to inhibit thermal expansion of the hydraulic bearing device, especially the dynamic pressure generation land (6).
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Inventors:
Kazuhisa Sugiyama
Yoshiharu Inaguma
Yoshiharu Inaguma
Application Number:
JP8462297A
Publication Date:
January 26, 2005
Filing Date:
March 19, 1997
Export Citation:
Assignee:
Toyota Koki Co., Ltd.
International Classes:
F16C17/02; F16C17/24; F16C32/00; F16C32/06; F16C33/10; F16C37/00; (IPC1-7): F16C32/00; F16C17/02
Domestic Patent References:
| JP5022843U | ||||
| JP56059025A | ||||
| JP4050721U | ||||
| JP5026239A | ||||
| JP63235723A |
Attorney, Agent or Firm:
Endo Zenjiro
Shiro Kubota
Shiro Kubota