| 摘要 |
<p>A solenoid valve (10) comprises a body (12) received within a stepped opening (13) of a modulator body (11). The solenoid valve (10) includes a first opening (16) communicating with a chamber (40) and second (20) and third (22) openings communicating with an interior area (30) of the solenoid body (12). Located within the chamber (40) is a shuttle valve (50) having a longitudinal through-opening (52) with an orifice opening (54) and a transverse opening (56) communicating with the chamber (40) and intersecting the longitudinal through-opening (52). An armature (100) is disposed within the interior area (30) and has a first valve member (101) which may seat sealingly with a valve seat (53) of the longitudinal through-opening (52) of the shuttle valve (50), and a second valve member (102) which may seat sealingly with a valve seat (28) of the third opening (22). The armature (100) has a pair of parallel axial through-passages (105). The armature (100) and shuttle valve (50) are biased by a spring (51) and each move reciprocably within the solenoid body (12). The second opening (20) extends transversely through the solenoid valve body (12) and intersects orthogonally a pair of openings (21) which communicate with the interior area (30) and are coaxially aligned with the pair of axial through-passages (105) in the armature (100). A coil (90) is disposed about the shuttle valve (50) and armature (100). Energization of the coil (90) caused the armature (100) to move and seat the first valve member (101) within the valve seat (53) of the longitudinal through-opening (52) and separate the second valve member (102) from the third opening (22), thus permitting fluid to flow from the second opening (20) to the third opening (22). A pressure differential created across the shuttle valve (50) and armature (100) causes conjoint movement of the shuttle valve (50) and armature (100) toward the third opening (22) so that fluid flow from the chamber (40) directly to the transverse opening (56) is substantially restricted and fluid in the chamber (40) flows through the orifice opening (54).</p> |
