An improved open-center improved valving sub-assembly of the type used for power steering systems for motor vehicles is disclosed. In particular, the improved open-center improved valving sub-assembly has a valve spool member with first and second sets of input slots and first and second sets of return slots, and a valve sleeve member with output slots and diversionary slots wherein only the output slots are coupled to a power cylinder member of a host power steering system. The output slots are...

A multi-function valve has a floating disc (24) with concentric annular ribs (25,27) on one face for cooperation with respective first and second seatings, and an annular rib (26) on its other face for cooperation with a third seating.

A test stand having a control chamber with a fluid pressure therein for simulating an operational parameter of a device. A doser system with a controller which receives an input representing a desired pressure Px in the control chamber. The controller supplies either a first or second solenoid valve with an actuation signal to allow fluid pressure from a source to enter the control chamber or fluid from the control chamber to flow to the surrounding environment to change the fluid pressure in th...

A structure of an electromagnetic valve for opening and closing a passage of a fluid flow which is applicable to a air suspension system of a vehicle. The electromagnetic valve includes a plunger linked with an armature, a first valve attached to the plunger for defining a first chamber and a second chamber in a body of the electromagnetic valve, together with a valve seating member installed within the body, a second valve attached to the plunger for opening and closing the fluid flow passage o...

A lift gas safety valve has a compound valve closure assembly which will close automatically upon loss of hydraulic control pressure, and which can be reopened and maintained in the open position by the application of hydraulic control pressure at a relatively low pressure level. A primary valve closure member is slideably mounted onto a valve stem for movement to a seated position on the valve body in which a lift gas flow passage is closed, to an unseated position in which the lift gas flow pa...

Apparatus for deicing the discharge gas from a safety relief valve includes a high pressure probe and an injection probe extending into the flow path of the discharge gas. Inlet orifices in the high pressure probe include inlet orifices facing directly upstream relative to the gas for communication of the total pressure of the flowing gas to the inside of a reservoir containing the deicing agent. The injection probe connects with an outlet of the reservoir and includes outlet orifices facing dir...

An automatic drain valve for discharging accumulations of condensables and foreign materials from a pneumatic system. The drain valve (10) comprises a reservoir (14) defining an inlet (30) and an outlet (86) for flowthrough communications with a pneumatic system. A pilot valve (41) is mounted in the reservoir (14) for selectively communicating pressurized air to a valve operator (57), such that the valve operator selectively opens and closes a drainage valve (82) communicating with the outlet (8...

In a flow meter, a detective core (5) is slidably fitted in a cylindrical chamber (3a) in a main body (2), and a fluid is introduced at a predetermined angle from inflow passageways (17) into the interior of this detective core (5), the fluid introduced into the detective core (5) being discharged at a predetermined angle to the interior of the main body (2) through outflow passageways (13). A force generated by a variation in momentum of the fluid is applied to the detective core (5), and this ...

Quick drop valves are usable in hydraulic circuits in which fluid is expelled from a hydraulic cylinder due to gravity force acting on a load connected to the hydraulic cylinder. The present quick drop valve has a sleeve carried by a valve member for establishing an orifice through which the fluid expelled from the hydraulic cylinder passes. When the flow rate of the expelled fluid exceeds a predetermined flow rate, a differential pressure generated by the orifice causes the valve member to star...

A transducer having a cross field polarized permanent magnet mounted for slight pivotal movement within an annular coil winding. The magnet comprises neodymium-iron-boron to provide a compact, lightweight, low inertia and high intensity magnetic field. A magnetic field generated by current in the coil winding influences the permanent magnet to pivot slightly about a horizontal axis and rotate a yoke structure to produce a mechanical output of the transducer. In the preferred embodiment of the in...