| 摘要 |
PCT No. PCT/US80/01300 Sec. 371 Date Oct. 1, 1980 Sec. 102(e) Date Oct. 1, 1980 PCT Filed Oct. 1, 1980 PCT Pub. No. WO82/01169 PCT Pub. Date Apr. 15, 1982.A brake system (10) providing a self-bleeding and self-cleaning operation as a function of selective positioning of the transmission control (16) of the vehicle. The brake (12,13), in the illustrated embodiment, is a spring-applied, hydraulically released brake permitting the piston (24) to force hydraulic fluid and accumulated air from an upper portion (34) of the brake pressure chamber (23) outwardly through a bleed line (33) in which a flow restrictor (35) and a check valve (36) are provided. A brake fluid inlet supply line (14) communicates with a lower portion (22) of the pressure chamber (23) so as to permit flushing of debris from the lower portion (22) of the pressure chamber (23) concurrently with the self-bleeding operation. |
