| 摘要 |
<p>PCT No. PCT/FR92/00927 Sec. 371 Date May 4, 1993 Sec. 102(e) Date May 4, 1993 PCT Filed Oct. 7, 1992 PCT Pub. No. WO93/09484 PCT Pub. Date May 13, 1993.The invention relates to a pressure regulation device for a hydraulic system comprising at least one generator (30) of fluid under pressure, a brake actuator (28) and a reservoir (32) of fluid under low pressure, and including an electrovalve controlled by a computer, the electrovalve being connected via a duct (29) to the generator (30) of fluid under pressure and via a duct (31) to the brake actuator (28), and comprising in a casing (8) an electrical coil (10) and a sliding magnetic core (12) controlling a slide valve (16) sliding in a bore provided in a body (18), the slide valve (16) determining two chambers (22, 40) arranged on either side of the slide valve (16) and being formed with a valve (48) with ball (50) co-operating with a seating (52) formed on the casing (8), the slide valve (16) being formed with a groove (34) delimited by two bearing surfaces (36, 38). One of the bearing surfaces (36) co-operates with the duct (31) for connection with the brake actuator (28) and has a length (L) greater than the diameter (D) of that duct by a length (R) representing a functional overlap.</p> |
