| 摘要 |
<p>1,154,176. Disc brakes; valves. ALFRED TEVES G.m.b.H. 30 Nov., 1966 [10 March, 1966], No. 53660/66. Headings F2E, F2F and F2V. In order to prevent the evaporation of brake fluid in hydraulically actuated disc brakes, the working chambers 4 and 5 of the split brake caliper housing 1a 1b are connected to one another via two separate passages 6 and 7 in which are provided one-way valves 8 and 9, such that fluid entering the connection 16 passes into passages 6 and 7 but only valve 8 allows flow to the chamber 5 on the cover side 1b of the caliper housing. On release of the brakes, the fluid passes through the one-way valve 9 into passage 7, the closed one-way valve preventing return flow via passage 6. Figs. 2 and 3 show two types of one-way valves, the former being of the form of a hose valve 11 tapering and having a slot 11a in the centre of the tapered section, the latter being of the form of plate valves comprising a perforated plate 14 and a rubber disc 15 which are laid on top of one another and formed with non-registering apertures, 14a, 15a. Reference has been directed by the Comptroller to Specification 842,913.</p> |
