| 摘要 |
<p>A hydraulic apparatus provides a base (34) with a discharge passage (102) communicating a circumferential portion of an annular pump discharge passage (121) to a damper chamber (86). A piece of hydraulic equipment is connected via an orifice (251,252) to the discharge passage (102) without arranging said annular pump discharge passage (121) between the damper chamber (86) and the orifices (251,252), so that the damper chamber (86) and the orifices (251,252) cooperate to exert an effective attenuating action so as to effectively suppress the transfer of pressure pulsation to the hydraulic equipment. Further, an anti-lock brake control apparatus provides a pipe member (114) which integrally includes an orifice (251,252) interposed between a damper (241,242) and a normally open electromagnetic valve (VOFL,VORR,VOFR,VORL), a connector body (115) being arranged in a connecting bore (1121,1122) coaxially with the orifice (251,252), and a connecting pipe portion (116) being coaxially formed between the orifice (251,252) and said connector body (115), the connector body (115) being press-fitted into a large-diameter portion (111a) of the base (34) and the orifice (251,252) being press-fitted into a small-diameter portion (111b) of the base (34). The number of component parts is reduced and the normally open electromagnetic valves are prevented from malfunctioning due to clogging of the orifices by particles resulting from the press-fitting process.</p> |
