摘要:
An electromagnetic solenoid for use with a fluid control valve is disclosed in which a fixed iron core and a casing for housing a solenoid coil can be fabricated separately from each other without difficulty, and in which the configuration and the clearance between the fixed iron core and a movable iron core or the length of the extension of the fixed iron core from an end wall of the casing can be readily changed in accordance with the desired magnetic attraction characteristics thereof as required. The cylindrical casing has an end wall formed at its one end and is open at its other end, the open end being closed by an end cap member to form a yoke for a magnetic circuit. The fixed iron core is adapted to be separably connected with the end wall of the casing. An output rod is disposed in the casing with its one end extending outwardly through the end wall of the casing, the output rod slidably extending through the fixed iron core and being supported at its opposite ends by the end wall of the casing and the end cap member through a pair of slide bearings for axial sliding movement. A movable iron core is received in the hollow of the solenoid coil and fixedly mounted on the output rod in a face-to-face relation with the fixed iron core. The end wall of the casing has an insertion bore formed therein, and the fixed iron core has its one end firmly fitted into the insertion bore.
摘要:
A power steering system for a vehicle having a power cylinder to which a hydraulic fluid delivered from a pump driven by an engine is supplied through a fluid passage switching valve includes a pressure control valve provided in a branched fluid passage extending from a high pressure fluid passage between the pump and the switching valve to a reaction piston in the switching valve, and having a degree of opening controlled by a pilot pressure, and a pilot pressure control valve provided in a low pressure fluid passage having one end connected through an orifice to the branched fluid passage downstream of the pressure control valve and another end leading to a fluid reservoir.
摘要:
A hydraulic power-steering system for vehicles, comprises a hydraulic directional control mechanism interposed between an input shaft and an output shaft. A rotor provided in the housing of said hydraulic directional control mechanism without receiving any hydraulic reaction, rotates integrally with said output shaft, and a spool valve is fitted in said rotor to perform directional control of hydraulic fluid flowing from a pump to a steering cylinder. An input pin fixed to said input shaft circularly rotates in order to drive said spool valve and also serves as a stopper pin for engaging said input shaft with said output shaft directly when manually steering.
摘要:
A vehicle steering apparatus includes a steering wheel which has an annular boss portion with an axis and is rotatably supported on a vehicle body side member, a steering shaft, and a non-rotatable member provided in the steering wheel, which is coupled to the vehicle body side member by shafts. The rotation of the steering wheel is transmitted to the steering shaft by a mechanism including a pinion portion having an axis, formed at an end portion of the steering shaft on a side of the steering wheel, and a ring gear portion having an axis, formed on an inner surface of the boss portion and meshed with the pinion portion, the axis of the ring gear portion being eccentric with the axis of the pinion portion and concentric with the axis of the boss portion. The coupling member extends through a gap between the ring gear portion and the pinion portion.
摘要:
A power steering apparatus includes a motor 5 connected through a clutch 6 and a worm gear mechanism 50,51 with a steering column 12. A multi-lead strap 46 is wound around the steering column within a first cylindrical housing 23 for electrically connecting a torque sensor 4 to terminals disposed outside the steering column. The worm gear mechanism includes a worm wheel 50 fitted on the steering column in the first housing, and a worm shaft 51 in mesh with the worm wheel and disposed in a second cylindrical housing 54 adjacent the first housing. The second housing has one end closed and the other end open. The worm shaft is rotatably supported at one end by a first bearing 52 press fitted in the closed end of the second housing and at its other end, which is connected with the clutch, by a second bearing 53 fixedly mounted thereon, such that the worm shaft can be axially removed from the second housing through its open end.
摘要:
An electromagnetic solenoid for a fluid control valve includes a cylindrical casing accommodating a solenoid coil and having an end wall formed at its one end and which is open at its other end, the open end of the casing being closed by an end cap. A fixed iron core is disposed in and fixedly mounted on the casing. An output rod is disposed in the casing with its one end extending outwardly through the casing end wall for connection with a valve member of the fluid control valve. The output rod slidably extends through the fixed iron core and is supported on its opposite ends by a slide bearing disposed in the end wall of the casing and by a slide ball bearing disposed in the end cap member. A movable iron core is received in the solenoid coil for axial sliding movement and is firmly mounted on the output rod in a face-to-face relation with the fixed iron core at a location such that the distance between the center of the movable iron core and the slide ball bearing is less than the distance between the center of the movable iron core and the slide bearing. The output rod and the slide bearing in the casing end wall are formed of a non-magnetic material.In one embodiment, the end wall of the casing has a fluid passage formed therethrough for providing fluid communication between the interior of the casing and the outside. In another embodiment, the slide bearing in the end wall of the casing has a fluid passage formed therethrough for providing fluid communication between the interior of the casing and the housing bore.