Abstract: A mechanical control valve that can automatically direct the flow of fluid between two output lines. The control valve has a housing with a fluid inlet, a first outlet and second outlet. The valve also has a poppet that allows fluid to flow out of the first outlet when in a first position and through the second outlet when in a second position. The poppet is normally in contact with a mechanical timing switch. When fluid initially flows into the housing inlet, the poppet directs the fluid to the first outlet. The fluid activates the mechanical timing switch which releases from the poppet. When the fluid no longer flows through the valve, a spring moves the poppet into the second position. At the same time, the mechanical timing switch begins to move back into contact with the popper. An orifice controls the movement of the switch, so that there is a time delay between the moment the fluid pressure in the valve drop, to the point when the poppet is pushed back to the first position.

Abstract: An expansion device for a refrigeration system, piston therefor and methods of making the same are provided, the expansion device comprising a housing having opposed ports for coupling the device in the system and being separated from each other by an internal valve seat of the housing, and a movable piston disposed in the housing and having a first end surface adapted to engage against the valve seat to tend to close the same when the piston is disposed in a first position thereof in the housing, the housing having an annular shoulder, the piston having a second end surface for engaging against the shoulder when the piston is disposed in a second position thereof in the housing, the piston having a passage passing therethrough and through the end surfaces thereof for interconnecting the opposed ports together in a restricted manner when the piston is in the first position thereof, the piston having an outer peripheral surface interconnecting the end surfaces together and being provided with a plurality of gr

Abstract: Valve which consists of a body (1) provided with a flow passage, of a closing member (2), such as, e.g., a flap, fitted in the flow passage (3) pivotably or turnably and having no passage opening, and, if necessary, of jointly operative sealing members (6) fitted between the closing member (2) and the valve body (1). In the flow passage (3) in the valve body (1), after the closing member (2), at the outlet side of the flow, one or several attenuation member or members (9) are fitted, which are placed one after the other at a distance from each other and from the closing member (2), which the closing member is in the closed position, and which reduce the cross-sectional area of the flow passage (3). The attenuation member or members (9) may be provided with holes or openings (12) passing through them.

Abstract: A check relief valve particularly suited for use with corrosive fluids includes a body having an input port and an output port connecting a fluid passageway therebetween. A ring spring is mounted to the body along the fluid passageway. An annular sleeve is attached to the ring spring. A rod, having a sealing member at one end adapted to engage an annular edge of the sleeve, is lightly biased against the sleeve so that forward flowing fluid flows relatively unhindered while reverse fluid flow is checked. When the pressure at the output port is sufficiently greater than the pressure at the input port, the rod and moveable sleeve cause the ring spring to flex. After the rod has travelled a predetermined distance, movement of the rod is halted so that further movement of the sleeve breaks the seal with the sealing member to allow reverse flow of fluid. Also disclosed is a governor, which includes the check relief valve and pilot valve, for use between a pump, a system and a reservoir.

Abstract: A regulating valve for dividing a flow of fluid into a plurality of equal flows, wherein a pressure responsive member is positioned in a casing in communication with inlet pressure fluid, and a movable valve member with a plurality of equal size openings therethrough is connected with the pressure responsive member for movement therewith and is positioned in operative association with a plurality of outlet openings in the casing, whereby when the pressure responsive member is moved by inlet pressure fluid, the valve member is moved accordingly to open or close the outlet openings and thus obtain a plurality of equal, regulated flows through the plurality of outlets.