Title:
流体作動式ブレーキアクチュエータのためのスプリング室隔離システム
Document Type and Number:
Japanese Patent JP3553596
Kind Code:
B2
Abstract:
A fluid-operated brake actuator having a hollow actuator rod between a spring chamber of a spring brake housing and a spring chamber of a service brake housing incorporates a valve within the actuator rod. The valve isolates the two spring chambers from each other in normal operation and releases a vacuum in the spring brake housing spring chamber when the spring brake is activated. A separate one-way check valve mounted in a well of the spring brake housing permits fluid to exhaust from the spring chamber to atmosphere and prevents contaminants in the atmosphere from entering the spring chamber.
Inventors:
Pierce, william sea
Bowie, John Pea
Bowie, John Pea
Application Number:
JP52424694A
Publication Date:
August 11, 2004
Filing Date:
March 14, 1994
Export Citation:
Assignee:
Holland NewA International, Inc.
International Classes:
B60T13/38; B60T13/50; B60T15/00; B60T17/08; F16D65/28; (IPC1-7): B60T13/38
Foreign References:
| US3736842 | ||||
| EP0025558A1 | ||||
| US3712178 |
Attorney, Agent or Firm:
Masao Okabe
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa