Abstract: The first seal seat is disposed in a first passage of a case. The first float valve body is disposed in the case and closes the first seal seat in response to the liquid level of the fuel. The second seal seat is disposed vertically above the first seal seat, in a second passage of the case. The second valve body is disposed on one side of the second seal seat communicating to the outside of the second passage, with being resiliently urged upwards from below. The second float is disposed in the case and regulates an upper end position of the second valve body to open the second valve seat in response to movement of the liquid level of fuel at least until the liquid level is higher than the liquid level at which the first float valve body closes the first seal seat.

Abstract: A liquid drain (2) includes a drain body (20). The drain body defines a float chamber (30) that is adapted to store a liquid. A liquid level adjusting mechanism serves to adjust the liquid level within the float chamber and includes a float (40; 240; 340; 440; 540). The float has a float body (42; 242; 342; 442; 542) that is adapted to float on the liquid surface within the float chamber. A damper (43; 46; 243; 343; 443) may inhibit or minimize a shaking phenomenon of the float body due to waving of the liquid within the float chamber.

Abstract: A four-way switching valve free from leakage of a refrigerant is disclosed. The valve includes two three-way switching valves arranged side by side, each having a pressure-regulating chamber, a piston, and a plug coaxially arranged. One of the pressure-regulating chambers selectively communicates with a low-pressure chamber or a high-pressure chamber via a three-way solenoid valve. The other pressure-regulating chamber communicates with another chamber in which the pressure increases or decreases as the pressure within one of the pressure-regulating chambers decreases or increases. As a result, refrigerant leakage is prevented, in turn preventing degradation of the refrigerating power of a system.

Abstract: An electrically actuated valve includes firstly a fixed core (1) accommodating, at least, one coil (2) in, at least, one housing and forming therewith, at least, one electromagnet of the electrically actuated valve. Further, this valve includes a body (4) forming with the fixed core (1) the sealingly tight carrier structure of the electrically actuated valve. Thirdly, this valve includes, at least, one movable core (3) placed between the fixed core (1) and the body (4). This electrically actuated valve is specially innovative in that the fixed core (1) is made as an unitary part from an injected ferromagnetic material and in that it combines several functions, in particular that of the pneumatic connection and/or of the electrical connection of the coil/coils (2). The decrease in the number of parts and the simplification of the design allow, accordingly, an additional miniaturization.

Abstract: A solenoid valve has an electromagnet subassembly and a pneumatic switching subassembly. A valve plug is mechanically associated with the electromagnet subassembly, the pneumatic switching subassembly includes a body enclosing the valve plug trapped between two sealing seating facing each other. The movement of the valve plug is controlled firstly by a spring located in a mobile core of the electromagnet subassembly through a pusher, and secondly by a means that forces the valve plug into contact on the upper seating of the pneumatic switching subassembly when the electromagnet is energized. The electromagnetic subassembly has four cylindrical pins at its assembly plane on the pneumatic switching subassembly, each cylindrical pin being provided with a transverse cavity formed on the generating line of the pin and terminating with a frustum of a sphere. The pneumatic switching subassembly includes four cylindrical cavities as its assembly plane with the electromagnet subassembly.

Abstract: A plumbing part in the form of a water delivery device is comprised of a protective liner through which potable water can flow. The protective liner is in the form of one or more lengths of stainless steel tubing and is encased in a casting of a desired material, such as bronze or brass. Fittings required to attach the water delivery device to sinks, bathtubs or other water sources and to allow for insertion of various aerators and other flow devices are also encased in the casting. The various fittings are pre-assembled to the liner prior to casting to ensure a water-tight seal between the liner and the fittings prior to casting.

Abstract: A system, apparatus, and method of forming a hydraulic control valve system is provided. The system may include a hydraulic control valve, a removable mounting module, and a mounting assembly. The hydraulic control valve may have a valve body, the body having a function port, a supply port to allow for the supply of fluid to the function port, and a vent port to allow fluid to vent from the function port. The control valve may also have a gate assembly, the gate assembly having a gate, a seal assembly, and a roller bearings assembly. The seal assembly may include a seal carrier slidably mounted within the gate and a shear seal, to selectively direct hydraulic pressure to and from the subsea function. The hydraulic control valve may also include an actuation assembly for slidably moving the seal assembly, and a female coupling assembly integral with the hydraulic control valve body.

Abstract: A support structure for a C-ring includes a pair of circumferentially spaced holding members on catch plates. The holding members may be moved individually into the C-ring after the C-ring is mounted within an outer housing. The two holding members thus provide support to an inner periphery of the C-ring. A locking plate has support structure moved between circumferential ends of the housing members, thus providing effective support for the C-ring around its entire inner periphery. In this way, the two parts secured by the C-ring need not be moved relative to each other to insert the C-ring. The clearance or ability to move one of the two parts relative to the other which has been required in the past to mount a C-ring, is not necessary. This makes the inventive C-ring particularly useful for new applications, such as holding a porting sleeve within a valve housing.

Abstract: A solenoid valve has a housing having work, pressure, and tank connectors. An armature is movably arranged in the housing and cooperates with a coil. A slide is moveably arranged in the housing and has a hydraulic chamber connected to the work connector and connectable to the pressure connector. A plunger is positioned between the armature and the slide. The armature acts on the plunger which acts on the slide for moving the slide against a counter force. The plunger has a cross-section and the slide has a piston surface cooperating with the plunger, wherein the cross-section is smaller than the piston surface. In another embodiment, the slide has a first end, loaded by a supply pressure of the pressure connector, and a second end, loaded by a return pressure, so that the slide is hydraulically tensioned by the supply pressure and the return pressure.

Abstract: A four-way switching valve includes a first three-way switching valve having a valve element for connecting a port B to a port A, or to a port D via a sleeve, in a switching manner; a second three-way switching valve having a valve element for connecting a port C to the port A, or to the port D, in a switching manner; and a piston for actuating these three-way switching valves. The three-way valves and piston are coaxially arranged within a hollow cylindrical body. A three-way solenoid valve introduces high pressure into a pressure chamber on the upper side of the piston to actuate the valve elements held on the sleeve downward, while the upward actuation is effected with a driving force produced by reducing the pressure in the pressure chamber and configuring guides to have a larger pressure-receiving area than that of a guide.

Abstract: An air vent mechanism includes a composite type air vent valve having a check valve for controlling a pressure in a fuel tank and a cut valve for discharging vapor in the fuel tank and preventing fuel from leaking. The check valve and the cut valve are connected through a communicating path. A tank side connecting portion communicates with the communicating path, and an atmosphere side connecting portion communicates with an atmosphere side port of the check valve portion.

Abstract: A solenoid operated three port pressure control valve assembly of the exhaust pressure bleed type. The valve for the inlet pressure supply port includes a pressure responsive diaphragm with the supply port obturator attached. A bleed orifice in the diaphragm provides viscous dampening of the movement of the obturator and minimizes inlet valve flutter. The valve assembly is disclosed in both normally open and normally closed configurations.

Abstract: A device that is adapted to be mounted to an interior surface of a polymeric fuel tank includes a body, a weld foot adapted to be inserted into the molten inner surface of the fuel tank and having a support surface adapted to control insertion of the weld foot into the molten inner surface of the fuel tank and to position the device relative to the inner surface, and a break zone positioned between and interconnecting the weld foot and the body and having a structural cross section that is weaker than the weld foot and the body such that under sufficient force, the break zone will fracture and allow the body to separate from the inner surface of the fuel tank, thereby leaving the weld foot embedded within the inner surface of the fuel tank.

Abstract: A spool valve comprises a slidable spool, and through displacement of the spool a supply port of the valve is allowed to communicate with one of the load ports of the valve while the other load port is allowed to communicate with a corresponding one of return ports of the valve. The spool is provided with a portion, the outside diameter of which gradually increases, at least on the other load port side from the center of a central concave portion of the spool. The outside diameter gradually increasing portion decreases fluid force which acts against an operating force of the spool when the valve is activated.

Abstract: A foot-actuated condensate drain for an air compressor tank. The foot-actuated condensate drain includes a lever that is connected to a valve on the bottom of the air compressor tank. Movement of the lever, for example by a user's foot, causes the drain valve to open. The lever may be moved to a locked position where the drain valve is held in an open position, even if the user releases his or her foot. The valve stem of the valve is hollow and includes a seal for closing off the opening, and radial holes below the seal and in fluid communication with a hollow interior portion of the stem. When moved away from the closed position, fluid in the compressor tank flows out of the opening, around the seal, into the radial holes, through the stem, and out of the valve.

Abstract: A cover assembly for a fuel tank of a vehicle includes a cover adapted to close an opening in the fuel tank and an internal port operatively supported by the cover. The cover assembly also includes a fill limiting vent valve attached to the internal port to vent the fuel tank through the cover. The internal port includes at least one convolute therein.

Abstract: A chemical delivery system having a body defining a main fluid flow passage through which a fluid passes and a storage tank for holding a chemical. An inlet nozzle delivers a quantity of the fluid in the main fluid flow passage to the storage tank to be mixed with the chemical and an outlet nozzle returns a quantity of the mixed fluid to the main fluid flow passage.

Abstract: A micro lock valve includes a cylinder forming an air chamber. One part of the cylinder is provided with an inlet port and an outlet port which communicate with each other through the air chamber, and the other part is provided with an exhaust port communicating with the air chamber. The micro lock valve also includes a plunger slidingly traveling in the cylinder, blocking up one of the inlet port or the exhaust port, and formed with a female screw thread in a traveling direction of the plunger. The micro lock valve includes a driving shaft having a male screw thread mating with the female screw thread and a driving motor rotating the driving shaft forwardly and backwardly. Accordingly, the micro lock valve maintains a normally closed state and a normally open state without consuming a large amount of electric power and is driven by low electric power for a long period of time.

Abstract: A hydraulic valve system (1) has a supply connection arrangement, having a high-pressure connection (P) and a low-pressure connection (T), a working connection arrangement, having two working connections (A, B), which can be connected with a hydraulic motor (2), and a directional valve (4) between the supply connection arrangement (P, T) and the working connection arrangement (A, B), which is connected with the working connection arrangement (A, B) via working lines (17, 18), in which are arranged check valves (21, 22), which can be opened by means of pressure.

Abstract: An auto-relieving pressure modulating valve includes a spool, a solenoid that shifts the spool in an energized direction, and a spring arrangement. The spring arrangement functions to shift the spool from a relieving position to a neutral position, in the energized direction, without energizing the solenoid.