Title:
液圧装置及びこれに用いられる通気装置
Document Type and Number:
Japanese Patent JP4195661
Kind Code:
B2
Abstract:
A hydraulic device with a housing 41 inside which is a space 42 containing hydraulic fluid and an air volume. A breather assembly 1, 60, 80 is further provided, having a breather duct 5 extending between the outside atmosphere and the above-mentionned space, for aerating and de-areating the above-mentionned space, in particular during the operation of the hydraulic device. The breather assembly is provided with shut-off means 4, 20, 23, 61, 63, 85, 86 shut-off the breather duct until the hydraulic device is first put into operation. The hydraulic device is designed in such a way that when it is first put into operation the seal of the breather duct provided by the shut-off means is automatically and permanently removed.
Inventors:
Tone Haudelar
Application Number:
JP2003542797A
Publication Date:
December 10, 2008
Filing Date:
November 04, 2002
Export Citation:
Assignee:
Actuant Corporation
International Classes:
F15B1/26; F16K24/04; F15B21/044; F16H57/027; F16H61/00; F16K17/04; F16K17/19; F16K24/00; F16N39/00
Domestic Patent References:
| JP7310702A | ||||
| JP63101302U | ||||
| JP63270983A |
Foreign References:
| WO1989008786A1 |
Attorney, Agent or Firm:
Shin Ishikawa
Shigemitsu Tanaka
Shigemitsu Tanaka