Abstract: A switchbox for monitoring the position of a manual quarter-turn valve has a housing mountable to the valve to be monitored/controlled. A handle-driven shaft extends through the housing, with one end of the shaft couplable to the valve stem such that movement of the shaft moves the valve stem. One or more shaft position sensor switches interact with a cam on the shaft to signal shaft position and/or provide control signals. A plate coupled to the shaft articulates within a recess on the surface of the switchbox to limit motion of the valve to an operable range, such as between full ON and full OFF. The switchbox has a pair of lock tabs with lock apertures. A lock aperture in the plate is alignable with the lock tab apertures to receive a pin or padlock for locking the valve in a selected position. A potentiometer can be utilized in place of a switch as a shaft position sensor. The switchbox may be used with an original or new handle and may feature detents to allow a range of valve settings.

Abstract: An operating mechanism for a bottom valve for a cargo tank of a railroad tank car, in which a valve operating lever is normally disconnected from a valve operating shaft and a valve operating shaft assembly includes a weak-link connector to prevent inadvertent opening of the bottom valve in case of derailment of the tank car.

Abstract: A pinch valve includes a clamping jaw (12) which displaces perpendicularly to an axial direction and forms a mouth (16) that receives a flexible tube (18) that extends in the axial direction, and an abutment (12; 21) which is opposite the clamping jaw in the jaw displacement direction. The clamping jaw and the abutment are disposed relative to one another such that the tube is pinched by the advancing clamping jaw against the abutment. The clamping jaw has a displaceable support element (14) and two claws (16a; 16b) located opposite one another and engaging around the tube at least in some regions. The claws are articulated on the support element by the respective rear ends thereof such as to pivot about pivot pins oriented parallel to the axial direction, whereby the mouth opens as the clamping jaw advances and closes as the clamping jaw retracts.

Abstract: The present invention relates to an apparatus for pressurizing delivery of a low-temperature liquefied material, and more particularly, to an apparatus for pressurizing delivery of a low-temperature liquefied material, which can convert the low-temperature liquefied material into a high-pressure gas and easily deliver the gas without causing changes in a composition and flashing phenomenon.

Abstract: A fuel and lubricant refueling vehicle is described. The vehicle has a centralized control panel for monitoring and operating the fuel and lubricant delivery systems. The control panel is operable from ground level. The vehicle is capable of delivering fuels and/or lubricants at 300 gallons per minute. In addition, the vehicle is capable of storing a variety of different fuels and lubricants for servicing multiple types of equipment and work vehicles. The vehicle also has a power generator that supplies 50 cubic feet per minute of air flow to the motor pump assembly of the fuel and lubricant delivery systems.

Abstract: A compressor for a vehicle air supply system includes a manifold, a cover, a gasket, an inlet, and an outlet. The manifold and cover are fixedly stacked together, and define a fluid channel system between them. The gasket extends laterally from between the manifold and cover. The fluid channel system includes an inlet air passage extending from the inlet to a cylinder inlet, a discharge air passage extending from a cylinder outlet to the outlet for discharging compressed air to the outlet, and one or more coolant channels that can be fed with a coolant to cool at least the discharge air passage. The inlet air passage, the discharge air passage, and the coolant channel(s) extend laterally, defined by wall faces of the discharge air passage. The wall faces comprise turbulator fins protruding into the discharge air passage. The turbulator fins create turbulence in the discharged compressed air flow.

Abstract: A valve unit for an aircraft is provided. The valve unit includes valve assembly; and a servo controller coupled to the valve assembly and configured to control operation of the valve assembly. At least a portion of at least one of the valve assembly or servo controller is formed by a high temperature aluminum alloy.

Abstract: A valve stem for mounting and supporting a tire pressure monitoring assembly includes a flange formed after insertion into the wheel rim for preventing movement caused by forces generated during wheel rotation.

Abstract: Fuel system components comprising polymer compositions containing functionalized graphene sheets. The components are formed from the polymer compositions or are coated with the polymer composition.

Abstract: A vehicle (3) equipped with gas tanks (30a, 30b) has a common channel (34c) and branch channels (34a, 34b) that branch from the common channel (34c) to the gas tanks (30a, 30b), as a filling passageway (34) through which gas is supplied from an external gas station (2) to the gas tanks (30a, 30b). The gas tank (30a) is better in heat dissipation characteristic than the gas tank (30b). Only the branch channel (34a) that corresponds to the gas tank (30a) is provided with a shutoff valve (40) or a flow regulation valve (46) that is capable of restricting the amount of gas supplied to the gas tank (30a).

Abstract: A sampling device including a closed sample container with a flexible wall and with an interior, a coupling member for releasable coupling to a sample outlet connector, a communicating passage between the coupling member and the interior of the sample container, at least the interior of the sample container being sterile, and a sterility protection device for ensuring the sterility of the interior of the sample container in the form of a three-way valve between the coupling member and the sample container, the three-way valve having a connection to the coupling member, a connection to the sample container and an outlet, and the three-way valve being, before use, in a closed position in which it bars access to the interior of the sample container.

Abstract: The invention relates to an arrangement for adjusting a valve (12) which has a plunger (21) which is under the action of a restoring element (23) and has a valve closing member (18), having a housing (31) which can be attached to the valve (12) and in which is arranged at least one temperature-dependent actuating element (41) which interacts with an actuating device (34), by means of which actuating element (41) the actuating device (34) is activated so as to be movable between a rest position (57) and a working position, wherein the actuating element (41) is formed as at least one spring element from a shape-memory alloy, wherein the actuating device (34) is movable in the axial longitudinal direction of the actuating element (41) and the actuating element (41) extends substantially longitudinally with respect to the movement direction of the actuating device (34), and an air exchange is provided between an interior space (61) and an exterior space (65) of the actuating element (41) and an interior space and

Abstract: Positive displacement using a connector with dual diaphragms is provided. For example, the connector includes a single fluid flow path, an air chamber and a valve. The single fluid flow path is configured for delivering fluid to a person and configured for receiving fluid from a person. The air chamber configured for expelling air from the air chamber when an actuator is inserted into the connector and for receiving air into the chamber when the actuator is removed from the connector. The valve plug comprises two diaphragms that separate the air chamber from the single fluid flow path. The valve plug is configured for creating positive displacement by returning the valve plug to its uncompressed state when the actuator is removed from the connector.

Abstract: An apparatus for containing pressure associated with a well includes a ram fluid chamber, a ram piston, and an intensifier piston within a housing. The ram piston has ends associated with a ram and with the ram fluid chamber. The intensifier piston has ends associated with the ram fluid chamber and a fluid source. The end of the intensifier piston associated with the fluid source has a larger surface area than the end associated with the ram fluid chamber. Fluid from the fluid source applies a first pressure to the second end of the intensifier piston to move the intensifier piston. Movement of the intensifier piston applies a second pressure greater than the first pressure to fluid in the ram fluid chamber to move the ram piston and associated ram toward a closed position.

Abstract: The invention relates to a liquid extraction module (1) for extracting liquid from a liquid tank, in particular of an exhaust-gas aftertreatment system of a motor vehicle, comprising a basic body (2) which can be arranged in and/or on the vehicle tank and which bears a liquid extraction device (6) with an extraction orifice (5) that can be assigned to the tank interior, and at least one electric heating element (20). According to the invention, at least one heat-conducting element (18) is provided, said element having at least one first portion (24) assigned to the heating element (20) and one second portion (25) assigned to the extraction orifice (5), in order to transport the heat from the heating element (20) to the extraction orifice (5). The invention further relates to a liquid tank for a vehicle.

Abstract: In a positioning device for a processing plant, a valve is provided comprising a valve housing, a valve seat, and a valve member actuated by use of a lead-through opening in the valve housing. A top is provided for screwing on the lead-through opening and for rigidly coupling the valve housing to an actuator. A deformation buffer is arranged or formed on mutually opposite respective screw stop surfaces of the top and of the valve housing and which is deformed in a predetermined manner when screwing the top on the lead-through opening.

Abstract: A shape memory actuator is described. The shape memory actuator has a supporting body, a driven element slidably mounted on the supporting body for movement between a stable rest position and a stable operative position, a driving element that drives the driven element, the movement of the driving element being determined by a SMA wire and by first resilient return means acting to return the driving element to the rest position upon deactivation of the SMA wire, second resilient return means acting on the driven element in opposition to the SMA wire, engaging means suitable to achieve at the operative position a reversible engagement between the driven element and the supporting body, either directly or indirectly, said engagement being able to resist the action of second resilient return means, and a control system for the engagement and disengagement of the engaging means.

Abstract: In a method or device for operating a pneumatic drive system for actuating a control valve, a pneumatic working chamber is loaded with pneumatic pressure in order to move the control valve into a desired position. At least two pneumatic control signals are supplied to the working chamber by means of electropneumatic conversion.

Abstract: A pilot-controlled valve arrangement having at least one valve mechanism mounted in a valve housing for multi-stage switching of a compressed air flow between a feed pressure connection and a working line connection wherein a throttled compressed air flow can be switched in at least one switching stage by a throttle, wherein the pneumatic pilot control has a first control piston mounted in a first control chamber implemented in the valve housing and having a coaxial recess for forming a second control chamber in which a second control piston is mounted, so that an additive control pressure application to the control chambers generates a telescope-like deployment of a ram extending from the second control piston for generating a multi-stage switching stroke for the valve mechanism, in order to implement the throttled compressed air flow in at least one switching stage of the valve mechanism present between the closed and the open valve setting.

Abstract: The invention relates to a metering module (10) including a metering valve (12). The metering module further includes a cooling device through which a cooling fluid flows. Said cooling device comprises a first chamber (26) that has a cooling fluid inlet (42). The metering valve (12) has an additional cooling member (36) containing a second chamber (52) which is hydraulically connected to the first chamber (26) via at least one opening (50).