Abstract: The invention relates to a fusible link (100) for installation in a through-opening (4) in a gas tank (1000), having a tension rod (1), a guide sleeve (2) with at least one fluid-guiding duct (2a) for guiding gas out of the gas tank (1000) into the environment of the gas tank (1000), and a fusible sheath (3), wherein the guide sleeve (2) is formed in a ring around the tension rod (1) at least in some sections, and the fusible sheath (3) surrounds the guide sleeve (2) in a sheath-like manner at least in some sections, wherein the tension rod (10) has a tapered section (1a) which tapers in a direction away from the gas tank (1000) when installed in the gas tank (1000), the guide sleeve (2) has at least one predetermined breaking section (2b) which, when the fusible link (100) is installed into the through-opening (4), breaks to introduce fusible material (3a) into the at least one fluid-guiding duct (2a), as a result of which fused material (3a) from the fusible sheath (3) can pass into at least some sections o

Abstract: The present invention relates to a drinking and service water supply device (1) of a building with at least one circulation pipe (3) leading to at least one consumer (12) and with a regulating valve installed in the circulation pipe, and in a coordinated aspect to a regulating valve (18) for hot-water circulation systems, comprising a valve housing (20) into which a thermostatic element (25) which is controlled by water temperature is installed as a setting member for a regulation member (30) which cooperates with a valve seat (34) with a flow opening (35) between inlet and outlet channel (21, 22) of the valve housing (20) for regulating the water flow rate. It is desired in drinking and service water supply devices that strongly cooled-down hot water is replaced as rapidly as possible by heated water to avoid, if possible, germ formation in the water and a drop of the water temperature at the consumer.

Abstract: A damper for dampening rotation of a dipper door relative to a dipper body of a mining shovel includes a shaft, an arm, and a high pressure fluid seal. The shaft supported for rotation about a shaft axis, and rotation of the shaft is dampened by fluid in an enclosed chamber. The high pressure fluid seal engages an outer surface of the shaft at a position between the first end of the shaft and the second end of the shaft. The high pressure fluid seal engages an outer surface of the shaft and includes a low pressure side and a high pressure side adjacent a shaft cavity. The arm includes a first end coupled to the first end of the shaft, and a second end coupled to the dipper door or the dipper body such that rotation of the dipper door drives the arm to rotate the shaft.

Abstract: The invention relates to an expansion machine (20), comprising an output shaft (24) and a shaft sealing ring (25) that interacts with the output shaft. The expansion machine (20) has an inflow region (21) and an outflow region (22). During operation, a working medium flows through the expansion machine (20), wherein compressed working medium flows into the inflow region (21) and expanded working medium flows out of the outflow region (22). The shaft sealing ring (25) separates a valve space (11) filled with working medium from a surrounding space (40). A valve (10) is arranged in the expansion machine (20). The pressure in the valve space (11) can be controlled by means of the valve (10).

Abstract: An in-line serviceable cutoff valve with excess flow capability includes a valve body and a separable cover. Internal valve components are accessible for service or replacement when the separable cover is removed from the valve body. The internal valve components may optionally be attached to the separable cover so that the separable cover and the internal valve components may be removed as a single assembly.

Abstract: A piston pump for delivering fluids includes a piston, a cylinder element and a pressure chamber which is arranged between an inlet valve and an outlet valve and is closed by a cover, wherein a throttling mechanism for throttling the fluid flow is provided in the fluid flow downstream of the outlet valve, and a vehicle brake system has a piston pump of this type. The throttling mechanism includes a movable annular disc which is guided on the cylinder element and the internal diameter of which is adapted to the external diameter of the cylinder element, wherein the axial travel of the annular disc sets a variable first throttle cross section.

Abstract: A spring brake cylinder is provided for brake systems of vehicles. It includes a spring brake piston, which is arranged in a housing of the spring brake cylinder and can be actuated by at least one accumulator spring and separates a spring chamber containing the accumulator spring from a spring brake chamber of the spring brake cylinder that can be filled with air for release and can be vented of air for application. A circulation device is provided at least for venting the spring chamber directly into the atmosphere. The circulation device is configured as a diaphragm valve device having at least one elastically movable outlet diaphragm and at least one elastically movable inlet diaphragm.

Abstract: In at least one implementation, a cap for a vehicle fluid reservoir includes a valve having a first valve portion that includes a valve passage closed by engagement of at least two portions of the valve with each other and opened when at least two portions of the valve are separated from each other to control fluid flow through the valve in a first direction and a second valve portion that controls fluid flow through the valve in a second direction different than the first direction. The second valve portion includes a flange engageable with the valve seat to selectively permit fluid flow between the flange and the valve seat and a biasing member received within the chamber and providing a force on the valve to yieldably bias the flange into engagement with the valve seat.

Abstract: A fuel flowmeter for being fed by a pump including an inlet and an outlet, including: a metering valve including an inlet and an outlet, and arranged downstream from the outlet of the pump; a return circuit connecting the inlet of the metering valve to the inlet of the pump; and a pressure regulator device including: a movable valve member to close and open the return circuit, a pressure difference detection surface fastened to the valve member and axially separating a first chamber in communication with the inlet of the metering valve from a second chamber in communication with the outlet from the metering valve, a piston axially separating the second chamber from a third chamber connected to the outlet of the metering valve, and a channel putting the second chamber in communication with the third chamber.

Abstract: Disclosed is a valve having a housing formed with a downstream port and an upstream port, with an axially displaceable plunger biased into sealing engagement of a major flow path extending between the downstream port and the upstream port for admitting flow only in the upstream direction, with the plunger formed having a normally closed minor flow path for admitting flow only in a downstream direction.

Abstract: A mud saver valve for retaining drilling fluid in the Kelly of a rotary drilling rig for insertion into a Kelly sub with an enlarged opening inside having a valve and hollow piston closing the flow in a first position and having flow through when the hollow piston is moved by flow against a spring to an open position compressing a spring to stack height, the spring being magnetized to provide magnetic latching to assist in holding the hollow piston in the open position at flow rates lower than it would otherwise be held open.

Abstract: A valve apparatus is disclosed for use in regulating the flow of fluid between a closed hydraulic loop and a fluid source in a hydraulic circuit, where the valve apparatus provides up to four different functions including a check valve, a neutral valve, a relief valve and a pressure rise rate valve. The apparatus includes a valve seat for selectively permitting fluid communication between the closed hydraulic loop and the fluid source, a sleeve member and a relief poppet in the valve seat, a relief compression spring inside the sleeve and positioned adjacent the relief poppet and the base of the slidable member, a valve guide and an accumulator piston slidably mounted within the valve guide to define an accumulator volume therein.

Abstract: A valve for an inflatable includes both inflation/deflation and pressure release functions. The valve has a housing which receives a core, a spring, and a nut. The nut is threadably received by the core and slidably received by the housing, and holds the core and spring in place within the housing. The inflation function includes a one way valve, and the release pressure of the pressure release function may both be adjusted and disabled.

Abstract: A flow damper includes a valve body, a piston, a spring, and a cap. The valve body is fastened to the rail main body and has a fuel passage therein. The fuel passage communicates between a fuel hole of the rail main body and the injector. The fuel passage includes a piston sliding hole on its rail main body-side. The piston is slidably held on an inner circumferential surface of the piston sliding hole. The spring urges the piston in an opposite direction from a direction of fuel flowing through the fuel passage. The cap includes a small diameter portion and a large diameter portion. The small diameter portion is fitted into the inner circumferential surface of the piston sliding hole with a gap between the small diameter portion and the piston sliding hole. The large diameter portion is located between the valve body and the rail main body.

Abstract: A relief valve assembly (27) for use with first (15) and second (21) conduits, one communicating high pressure. The assembly comprises a housing (29,33) defining first (45) and second (47) ports, and a poppet seat (49). A poppet member (43) and the housing define a spring chamber (55), and a spring (39) is disposed to bias the poppet member toward the seat. The poppet member defines a shuttle cavity (51), a shuttle passage (53) communicating from the cavity to the spring chamber, and the poppet defining a seat (57), and a fluid passage (61P) communicating with the first port, and a seat (59), and a second fluid passage (63) communicating with the second port. A shuttle valve assembly (71,73,75) is provided, whereby the fluid pressure in whichever of the ports is at lower pressure is communicated to the spring chamber and adds to the force of the biasing spring.

Abstract: A fuel blocking valve device includes a housing attached to a fuel tank of a vehicle and having a communication path between an inside and an outside of the fuel tank, a float valve for closing the communication path when fuel flows into the housing, and a two-way valve disposed above the float vale for opening and closing according to an inner pressure of the tank. The two-way valve opens and closes according to a difference between the inner pressure of the fuel tank and an atmospheric pressure. Further, the two-way valve includes a valve member for opening when the vehicle runs and vibrates. The valve member is formed of a spherical member and a cone shape valve seat for opening the communication path when the inner pressure of the fuel tank exceeds a predetermined high level.

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: When a pump operates, a check valve body leaves a check valve seat due to a pump side fuel pressure for opening a fluid passage inside a pressure adjusting valve body. When the pump does not operate, the check valve body contacts the check valve seat due to an engine side fuel pressure for closing the fluid passage. Thus, the engine side fuel is prevented from flowing-back to the pump. When the pump stops operating and the engine side fuel pressure exceeds a pressure corresponding to an urging force of a coil spring, the pressure adjusting valve body leaves the pressure adjusting valve seat with the check valve body, so that a gap is provided between the pressure adjusting valve body and the pressure adjusting valve seat for releasing the engine side fuel having excess pressure.