Abstract: Roof drying processes and associated systems. A representative process includes drawing moisture-laden air from within the internal structure of a roof via a vacuum blower, a extraction insert and an extraction manifold, and removing moisture from the moisture-laden air via a dehumidifier. The dry air can be directed back into the roof through an injection insert and an injection manifold.

Abstract: The present disclosure provides a gas flow regulating device and a mass flow controller. The gas flow regulating device includes: a valve port component, in which a first inlet channel is provided; a push rod component, in which a first through hole is provided, a push rod being provided in the first through hole, a first end surface of the push rod facing a gas outlet end of the first inlet channel, and the push rod being elastically connected with the push rod component through an elastic diaphragm; and a driving assembly configured to drive the push rod to move along a direction of approaching or leaving the first inlet channel to cause the first end surface of the push rod to be in contact with and seal or separate from the gas outlet end of the first inlet channel. In the gas flow regulating device, the structure can be simplified, the number of parts in contact with gas can be reduced, and the fault caused by the failure of a spring piece can be avoided.

Abstract: Apparatus, system and method for dispensing a particle-laden fluid from a fluid holding and dispensing micro-feature. In some implementations, the apparatus includes: a chamber having one or more surfaces that define a volume to receive fluid containing particulate matter, and an outlet port to dispense at least a portion of the fluid from the chamber. The outlet port may have a normal vector that, when the apparatus is positioned to dispense the fluid, is substantially perpendicular to gravity. The apparatus may be used to measure a number of individual particles from the fluid that flow through the outlet port over a period of them, measure a total volume of the fluid dispensed through the outlet port over the period of time, and calculate a concentration of the particulate matter within the chamber. In some implementations, the particle-laden fluid may be whole blood.

Abstract: An apparatus includes a housing, a flow control mechanism, and an actuator. At least a portion of the flow control mechanism is movably disposed within the housing. The apparatus further includes an inlet port and an outlet port, and defines a fluid reservoir. The outlet port is fluidically coupled to a second fluid reservoir and is fluidically isolated from the first fluid reservoir. The actuator is configured to move the flow control mechanism between a first configuration, in which the inlet port is placed in fluid communication with the fluid reservoir such that the fluid reservoir receives a first flow of bodily-fluid, and a second configuration, in which the inlet port is placed in fluid communication with the outlet port.

Abstract: A regulating apparatus for a pressure activated one-way valve. The one-way valve is for mounting on a container to permit the release of gas from within the container and to control the ingress of atmospheric air. The regulating apparatus comprises a sealed and expandable chamber containing a gas. The chamber is operatively associated with the one-way valve such that when the chamber is exposed to elevated temperatures and/or reduced external pressure the gas within the chamber expands and exerts a force upon the one-way valve or portions thereof. The force tends to maintain the one-way valve in a closed or semi-closed configuration.

Abstract: A method and a fluid tap device for retaining the temperature of a liquid, in a liquid distribution system having at least one liquid conduit extending from a liquid source to a liquid tap. After completion of a tapping operation and replacing the liquid with gas in the conduit, the refilling of liquid in the conduit is performed in three steps: a first step, initiated by activating the tap thereby causing a change of a physical variable which propagates backwards along the conduit and initiates a second step, the second step involving refilling the conduit with liquid from the source, while permitting remaining gas to escape via a gas passage separate from a liquid passage in the tap, and a third step, initiated when the liquid reaches the tap, involving opening the passage and permitting the liquid to flow out via the passage and through the tap.

Abstract: A waterproof, dustproof, breathing bolt includes a bolt body having a hollow shank with a breathing chamber and a cap member fixedly located at the top side of the hollow shank and defining therein an air passage in communication with the breathing chamber and one or a number of openings in communication between the air passage and the surroundings, and a waterproof breathing member made out of a metal material by powder metallurgy and set in between the breathing chamber and the air passage and having micro pores therein of size larger than air molecules but smaller than water molecules. Thus, the waterproof breathing member allows discharge of hot air out of the apparatus in which the waterproof, dustproof, breathing bolt is installed, but prohibits external water from entering the apparatus.

Abstract: A housing of a driving device, in particular an electric motor adjustment drive for a motor vehicle, has a housing opening, which is covered by a gas-permeable membrane, in particular a membrane that is impermeable to liquid. The housing opening is surrounded by a collar contour, which is interrupted locally at the circumference and within which the membrane lies.

Abstract: A liquid vapor separator drain valve includes an outer housing defining upper and lower chambers separated by a divider. An upper housing coupled to the outer housing partitions the upper chamber into inner and outer chambers and defines an upper port for communication with a carbon canister. The outer housing defines an external port in communication with the outer chamber and for communicating with a fill limit valve. Upper and lower valves are positioned in the respective upper and lower chambers such that the valves and upper and lower chambers are arranged in a vertically stacked, concentric manner. The lower valve vents fuel vapor to the upper chamber in a rest position and seals a divider vent passage when liquid fuel reaches a lower threshold. The upper valve vents fuel vapor to the upper port and seals the upper port when liquid fuel reaches an upper threshold.

Abstract: A vapor purge system having a tank isolation valve and a canister vent valve, where each valve includes a latching mechanism for maintaining the valves in an open position, and a diagnostic test is performed on the purge system to prove that each of the valves are functioning correctly. Using latching valves in these applications reduces electricity draw from the battery and reduces electrical interference with integrated pressure sensors. The fuel tank is sealed by the tank isolation valve between the fuel tank and a vapor storage canister, and the canister vent valve provides sealing between the canister and the atmosphere, and controls venting of the canister. The diagnostic test is performed using the tank isolation valve and the canister vent valve under different operating conditions.

Abstract: A condensate trap is provided with a liquid supply hole and a liquid discharge hole, as well as a vapor discharge hole located in the upper side of the casing. A cylindrical chamber is located in the casing in which chamber an expansion piston can move. A hollow piston rod is attached to the lower side of the expansion piston. The liquid supply hole communicates with the chamber around the piston rod. The wall of the piston rod has throttling ports which extend in tangential direction. A siphon is located in the piston rod underneath the throttling ports. In the piston rod underneath the siphon is located a further throttling port, which can communicate with the liquid discharge hole when the expansion piston moves up. The space in a further chamber underneath the bottom of the piston rod communicates via a channel with the liquid discharge hole.

Abstract: A breather cap assembly is provided which is configured to be connected to a stand-tube used in a watering system. When the watering system is in normal operation, the breather cap assembly is configured to allow for air to flow between the outside the assembly and the stand-tube. The breather cap assembly also provides for structure which acts as a baffle to minimize the introduction of foreign material from outside the breather cap assembly into the stand-tube. When the watering system is in flushing operation, the breather cap assembly is configured to seal off the stand-tube in order to minimize the possibility of water leaving the stand-tube. The breather cap assembly further also provides for structure which acts as a baffle to collect and retain a majority of any water that does leave the stand-tube during a flushing operation.

Abstract: A breather cap assembly is provided which is configured to be connected to a stand-tube used in a watering system. When the watering system is in normal operation, the breather cap assembly is configured to allow for air to flow between the outside the assembly and the stand-tube. The breather cap assembly also provides for structure which acts as a baffle to minimize the introduction of foreign material from outside the breather cap assembly into the stand-tube. When the watering system is in flushing operation, the breather cap assembly is configured to seal off the stand-tube in order to minimize the possibility of water leaving the stand-tube. The breather cap assembly further also provides for structure which acts as a baffle to collect and retain a majority of any water that does leave the stand-tube during a flushing operation.

Abstract: A valved cover device prevents pump cavitation of a swimming pool pump by allowing air to be released through an open valve of a strainer cover. The device includes a strainer cover configured for positioning over a strainer housing for a swimming pool pump. An air-bleed valve extends into the strainer cover. The air-bleed valve is selectively manipulated wherein the air bleed valve is configured to vent an interior of the housing when the strainer cover is positioned over and closes an access opening into the interior of the housing. The air-bleed valve is configured for environmentally communicating with the interior of the housing wherein a gas is permitted to bleed outwardly through the strainer cover when the strainer cover closes the access opening and the air-bleed valve is actuated.

Abstract: A system for ventilating and venting containers containing a fluid volume, such as gearboxes containing an oil filling, has a line system connecting the container to the atmosphere. Upon changes in the volumes in the container due to temperature changes, pressure is equalized. The line system contains a separating housing (12) in which a separating medium (46) having oleophobic and hydrophobic properties separates a first space (42) connected to the container from a second space (44) connected to the atmosphere. Line connections (10, 14) on the separating housing (12) are provided such that liquid-phase substances on opposite sides of the separating medium (46) can flow out of the first space (42) to the container and can drain out of the second space (44) to the atmosphere.

Abstract: The present disclosure relates to a system for producing high pressure steam from low quality feedwater for a designated process. The system includes a first closed loop in fluid communication with a boiler and a heat exchanger assembly. A first fluid flows through the first closed loop, and is of acceptable quality for use in a boiler. Heat from the boiler is transferred to a second loop through the heat exchanger assembly. The second loop includes the low quality feedwater, which is converted to high pressure steam. The high pressure steam produced from the low quality water can be used in the designated process. This reduces corrosion/downtime in the boiler that might otherwise occur if the low quality water was directly heated by the boiler.

Abstract: Disclosed is a safety valve of a low-pressure gas pipe which can be installed in a large-scale pipeline through which waste gases generated in a large-scale factory such as a steel mill flow and can reduce maintenance/management costs. The safety valve of a low-pressure gas pipe installed in a waste gas pipeline to discharge condensate includes: a first pipeline connected to a bottom surface of the waste gas pipeline and having a waste gas outlet on an inner wall thereof at one side thereof; a second pipeline extending from the first pipeline to be bent and extending in a direction parallel to the first pipeline; and an opening/closing unit for opening or closing the waste gas outlet.

Abstract: A solar thermal power plant is provided. The solar thermal power plant includes a solar collection system configured for utilizing incident solar radiation to heat a heat transfer fluid (HTF) and a power block configured for utilizing the heated HTF to generate power. The solar collection system includes a plurality of pipes for carrying HTF characterized by a first degree of permeability to hydrogen, at least some of the pipes including portions exposed to the atmosphere, and including a membrane made of a material being characterized by a second degree of permeability to hydrogen, the second degree of permeability being higher than the first degree of permeability to hydrogen.

Abstract: A microvalve includes a base plate having a surface defining an actuator cavity. A venting groove extends from a first cavity portion of the actuator cavity having a dead end region to a second cavity portion of the actuator cavity having a structure that can vent air from the microvalve. A cover plate includes a surface having an actuator cavity provided therein that includes a first cavity portion having a dead end region and a second cavity portion having a structure that can vent air from the microvalve. An intermediate plate includes a displaceable member that is disposed within the actuator cavity for movement between a closed position, wherein the displaceable member prevents fluid communication through the microvalve, and an opened position, wherein the displaceable member does not prevent fluid communication through the microvalve.

Abstract: A connector includes an inlet port into which liquid is poured and which has a first flow path for the liquid, a liquid discharge port to which a tube body is connectable and which has a second flow path discharging liquid from the first flow path to the connected tube body, a gas discharge which discharges air in the first flow path, and a blocking device which, when the liquid is poured in the first flow path, temporarily stops the liquid flow. Use of the connector involves sealing an opening section of the liquid discharge port, pouring liquid in the inlet port, causing air in the first flow path to be discharged, temporarily stopping the flow of the liquid in the first flow path, unsealing the opening section of the liquid discharge port, connecting the tube body to the liquid discharge port, and resuming flow of the liquid.

Abstract: A method for controlling the pressure inside a fuel cartridge with a deformable inner fuel container connectable to a fuel cell is disclosed.

Abstract: Disclosed are high pressure test systems and methods. One dynamic fluid gas bleeder manifold includes gas outlet having opposing first and second ends and defining first opening at first end of gas outlet, wherein gas outlet extends between first and second ends along longitudinal axis of gas bleeder manifold, a first fluid inlet having opposing first and second ends defines second opening at first end of first fluid inlet, wherein first fluid inlet extends between first and second ends along first direction forming first acute angle with longitudinal axis, a second fluid inlet having opposing first and second ends defines third opening at first end of second fluid inlet, wherein second fluid inlet extends between first and second ends of second fluid inlet along second direction forming second acute angle with longitudinal axis, an internal fluid passage fluidly couples gas outlet to first and second fluid inlets.

Abstract: A fuel tank structure comprising a fuel tank; a canister that adsorbs evaporated fuel within the fuel tank, and that releases vapor after adsorption of evaporated fuel; a full tank regulating valve within the fuel tank that becomes a closed state due to a float floating in fuel when a fuel liquid surface reaches a full tank liquid level that is set in advance; a communication pipe that communicates the fuel tank and the canister via the full tank regulating valve, a cross-sectional area varying valve that, when tank internal pressure that is applied from inside of the fuel tank increases, reduces a cross-sectional area of a flow path of vapor that flows toward the float; and a suppressing member that is positioned between the cross-sectional area varying valve and the float, and that suppresses airflow from the cross-sectional area varying valve from directly abutting the float.

Abstract: A hydraulic control system for an automatic transmission. The hydraulic control system is applied to an automatic transmission adapted to vary a torque capacity of a transmission member by an actuator. The hydraulic control system includes: a discharging device configured to discharge compressible gas entrained in the hydraulic fluid in the actuator; an interrupting device that interrupts power transmission; and a controller configured to determine an entrainment of the compressible gas in the hydraulic fluid, disconnect the power transmission via the interrupting device in a case that an entrained compressible gas is determined, and cause the entrained compressible gas to be removed from the hydraulic fluid by rotating the actuator while interrupting the power transmission.

Abstract: An insert assembly for a fitment used with a pouch containing a liquid product producing an off-gas is provided. The assembly includes a vented insert for use with the vented fitment allowing the off-gas to pass there through. A carrier is configured to be attached to the vented insert and includes a liquid impermeable membrane attach to the carrier and fluid coupled to the fitment and insert to allow gas from the product to pass there through. The membrane, which can comprise an EPTFE material allows the gas to pass through, while preventing the liquid product from passing through a wall of the pouch. The insert assembly can be selectively opened and closed to allow or prevent the off-gas produced by the product to pass through the assembly as needed to reduce the pressure within the pouch or container.

Abstract: The present invention relates to an exhaust gas expansion tank and an ozone generator system applying the same. The exhaust gas expansion tank includes a tank body and an automatic exhaust valve, and is provided at the top thereof with a gas outlet conduit, the lower end of the gas outlet conduit extending into the tank body and being at a distance from the bottom of the tank body, the automatic exhaust valve fixedly mounted on the upper end of the gas outlet conduit, and the tank body having a first water port and a second water port. The ozone generator system applying the exhaust gas expansion tank is simplified in system structure, can evacuate gas automatically and omit the manual exhausting of gas, thereby the operation procedure is simplified, the thermal expansion of the system is effectively controlled and the stability of the system operation is increased.

Abstract: A device includes a filling valve, a sleeve, an absorbing member, and a gas control unit. The filling valve can be engaged for filling liquid gas. The sleeve includes a fluid passing section that enables liquid gas outside to flow therein. The absorbing member can absorb liquid gas and is disposed in the sleeve. The gas control unit includes a main body, a gas inlet and flow rate adjusting mechanism, and a gas outlet mechanism. The gas inlet and flow rate adjusting mechanism includes an adjustably movable valve and a first air seal. The first air seal is mounted between the adjustably movable valve and the main body to prevent liquid gas from passing therebetween. The adjustably movable valve is in fluid communication with the gas outlet mechanism such that vaporized gas emitted from the absorbing member is discharged from the device from the gas outlet mechanism.

Abstract: A fire suppression wet pipe system air vent assembly and method of venting air from a fire suppression wet pipe system includes providing a primary air vent valve having an inlet and an outlet. The primary air vent inlet is adapted to be connected with a fire suppression wet pipe system and is configured to vent air, but not water, from its outlet. A secondary air vent valve having an inlet and an outlet is provided. The secondary air vent valve is configured to vent air, but not water, from its outlet. A fluid conduit connects the primary air vent valve outlet with the secondary air vent valve inlet. The second air vent valve provides failsafe air venting upon the failure of the primary air vent valve. A fluid indicator may be provided that indicates the presence of fluid in the conduit. The presence of an appreciable amount of fluid in the conduit is an indication of likely failure of the primary air vent valve.

Abstract: A valve assembly includes a housing. A membrane supported by the housing such that the membrane covers a vapor passage defined by the housing. The membrane allows the passage of vapor through the membrane and prevents the passage of liquid through the membrane. A flow control feature is supported by the housing and at least partially controls flow of a vapor to the vapor passage. The flow control feature enables variable flow of vapor to the vapor passage.

Abstract: A condensate drain for pressurized gas systems, having a condensate collecting chamber, which can be connected to the pressurized gas system via a condensate inflow and has a condensate outflow that can be closed by means of an operable valve, at least one electronic filling level gauge, with which the condensate filling level in the condensate collecting chamber can be detected, and an electronic control unit, with which the condensate filling level detected by means of the filling level gauge can be evaluated and the valve can be operated, where the condensate drain has at least one battery, which provides the power supply for at least the control unit, the filling level gauge and the valve.

Abstract: A drain connector attaches a hose to a port from which oil is drained from the chock of an oil film bearing. The drain connector comprises an elbow-shaped conduit having a horizontal leg adapted to be connected to the chock in communication with the port, and an angled leg adapted to be connected to the hose. A breather valve in the conduit is adapted to admit ambient air into the conduit when oil is flowing through the conduit from the port to and through the hose, and is adapted to automatically close in the event that the conduit is filled with oil occasioned by a reduction in the flow of oil through the hose.

Abstract: A system for ventilating and venting containers containing a fluid volume, such as gearboxes containing an oil filling, with a line system which connects the container concerned to the atmosphere and, upon changes in the volumes located in the container due to temperature changes, permits pressure equalization, is characterized in that the line system contains a separating housing (12) in which a separating medium (46) having oleophobic and hydrophobic properties separates a first space (42), which is connected to the container, from a second space (44), which is connected to the atmosphere, and in that line connections (10, 14) to the separating housing (12) are laid in such a manner that liquid-phase substances deposited on the separating medium (46) can flow out of the first space (42) to the container and out of the second space (44) to the atmosphere.

Abstract: An inflow protection device for preventing liquids and other contaminants from entering a water-carrying pipeline through an air valve connected to the pipeline. The inflow protection device includes an adaptor and an elongated vent pipe. The adaptor has a first end for coupling with an outlet of the air valve and second end. The vent pipe has a first end configured for directly or indirectly coupling with the second end of the adaptor and a second end extending out of and above a vault in which the air valve is installed. The vent pipe is of a length sufficient to position its second end above a flood plain level so that the second end allows air to be exhausted from and admitted into the air valve even when the vault in which the air valve is located becomes flooded.

Abstract: A self-aligning product delivery system including a vapor plate assembly and a ball joint assembly is provided. The vapor plate assembly has a vapor plate base portion with a vapor plate passage and a seating plate portion. The seating plate portion has a generally spherical segment shaped seating face defining an opening to the vapor plate passage. The ball joint assembly includes a ball joint base portion with a ball joint passage and an engaging portion. The engaging portion includes a generally spherical segment shaped joining surface. The spherical segment shaped joining surface of the engaging portion of the ball joint assembly is configured and arranged to rotationally mate with the spherical segment shaped seating face defining the opening of the vapor plate assembly to create a seal between the vapor plate assembly and the ball joint assembly.

Abstract: An apparatus, including a sealed housing defining a manifold having an inlet port for receiving an input fluid stream into the manifold and an outlet port for exiting an output fluid stream from the manifold; and a bleed structure having a proximal end, a distal end, and a hollow channel communicating a first opening at the proximal end to a second opening at the distal end, the distal end disposed within the manifold and the proximal end disposed in the outlet port outside of the manifold.

Abstract: The invention relates to a pressure-relief valve of a housing for an electrical/electronic unit, particularly for a housing of a control unit of a motor vehicle, comprising a pressure equalization element, which comprises a membrane. It is provided that at least one hydrophobic layer (22) is located on the membrane (21). The invention further relates to a housing (1) for an electrical/electronic unit (2), particularly of a control unit (4) of a motor vehicle, comprising such a pressure-relief valve (11).

Abstract: An ORVR valve assembly operative of relatively few movable components includes a valve body, having conduits to provide for routine passage of vapors therethrough through operations of a vacuum assist system. This is when a non-ORVR vehicle is being replenished with fuel. But, when a vehicle equipped with ORVR vapor recovery is being fueled, vacuum is generated above a piston supported diaphragm, attracts the diaphragm upwardly, plugs off the vapor passage conduits, and allows the ORVR system of the automobile to exclusively treat the generated vapors at the location of the vehicle and its fuel tank. Simultaneously, air is vented into the valve body, below its diaphragm, and into the vapor return line of the vacuum assist system, to prevent it from being subject to excessive vacuuming.

Abstract: A valve assembly for a fuel tank for a small engine includes a housing. A membrane is supported by the housing such that the membrane covers a housing opening. The membrane allows the passage of vapor through the membrane and into the housing cavity and prevents the passage of liquid through the membrane. A pressure relief valve is supported by the housing to control flow of a vapor through the housing cavity.

Abstract: A valve arrangement for venting a coolant circuit of an internal combustion engine having several subcircuits includes a valve which is in fluid communication with a primary vent line extending from one of the subcircuits. At least one secondary vent line is in fluid communication with the valve and extends from another one of the subcircuits. The primary and secondary vent lines are connectable to a shared third vent line which feeds into a compensating reservoir arranged at a geodetically highest point in the coolant circuit. The valve is constructed to establish a continuous fluid communication of the primary vent line with the compensating reservoir via the third vent line and to establish a fluid communication of the secondary vent line with the compensating reservoir via the third vent line only in the presence of air bubbles in the secondary vent line.

Abstract: A radiator apparatus for a vehicle may include an inlet tank receiving coolant from an engine, a heat-exchanging portion fluidly connected to the inlet tank and provided with a plurality of tubes and radiation fins so as to cool the coolant flowing in the tubes by exchanging heat with air, and an outlet tank disposed apart from the inlet tank and fluid-connected to the heat-exchanging portion, wherein the outlet tank receives the coolant from the heat-exchanging portion and discharges the coolant back to the engine, a bubble separating unit mounted on a connecting hose supplying the coolant from the engine to the inlet tank, wherein the bubble separating unit separates bubble contained in the coolant and supplies the coolant from which the bubble may be separated to the inlet tank so as for the coolant to pass through the heat-exchanging portion.

Abstract: A radiator for a vehicle may include an inlet tank adapted to receive coolant from an engine; an outlet tank disposed apart from the inlet tank and adapted to discharge the coolant back to the engine; a heat-exchanging portion fluidly connecting the inlet tank and the outlet tank and provided with a plurality of tubes and radiation fins to cool the coolant flowing in the tubes by exchanging heat with air; and a bubble separating unit connected to the inlet tank and adapted to separate bubble contained in the coolant discharged from the engine and to continuously discharge the coolant from which the bubble is separated to a reserve tank to supply the coolant from which the bubble is separated to the heat-exchanging portion.

Abstract: A flow channel member includes: an ink flow channel having a horizontal flow channel; a self-sealing valve disposed on the downstream side of the ink flow channel and configured to open and close the ink flow channel; a pressurizing unit configured to apply a pressurizing force to the ink in the ink flow channel from the upstream side; and an air bubble trap provided in the middle of the horizontal flow channel for storing an air bubble, wherein the air bubble trap includes an air-bubble permeable wall formed of an air-bubble permeable member configured to allow permeation of the air bubble and is configured to cause the air bubble coming into abutment with the air-bubble permeable wall to be a flat shape and to be pressed against the air-bubble permeable wall so as to bring the air bubble into surface contact with the air-bubble permeable wall.

Abstract: Expansion reservoir (1) for a coolant circuit, having a fill opening (3) that can be closed by a lid (2) and is located in the geodetically upper region of the expansion reservoir (1), wherein a differential-pressure-controlled valve (4) having at least two switching positions is integrated into the lid (2), and having at least one inlet port (5) which opens into a lid region (10), and an outlet port (6) in the geodetically lower region of the expansion reservoir (1), wherein the inlet port (5) is closed by the valve (4) in a first switching position and is opened in at least one second switching position, thus allowing the inlet port (5) to vent into the expansion reservoir (1).

Abstract: A hydrogen venting device for separating and releasing hydrogen gas from a gaseous mixture comprising hydrogen and steam generated in nuclear power plants is disclosed. The method includes providing a chamber at a high point in the cooling water circuit, allowing the collection chamber to cool below a gaseous mixture inlet temperature thereby allowing the hydrogen to collect at a first elevation within the collection chamber and condensate of the steam to collect at a second elevation within the collection chamber below the first elevation, and releasing substantially only hydrogen from the collection chamber at or proximal the first elevation when a threshold temperature, less than the first temperature, is reached.

Abstract: An auto bleed valve and method of bleeding a hydraulic system of an aircraft is accomplished by illuminating a plenum of a bleed valve using an LED oriented to illuminate a phototransistor when air is present in the plenum. A comparator circuit is used on an output of the phototransistor such that a predetermined voltage output corresponds to air detected in the plenum. An integrating circuit and a second comparator in series with the first comparator circuit is used to determine when a predetermined time period is met in which air is continuously detected in the plenum. Thereafter an air bleed solenoid can be used to vent the air upon a signal from the aircraft computer logic system.

Abstract: A vent assembly connectable to a transmission housing includes a stem, a membrane and a cap. The stem has an annular flange, a first end, a second end, and a through bore extending between the first end and the second end. The first end is connectable to the transmission housing and the second end has at least one flange and an annular rim. The membrane is located on the second end of the stem over the bore. The cap has a base and an annular wall extending from the base. The annular wall of the cap is deformed at a terminal end against the annular flange of the stem at discrete locations, where an undeformed portion of the annular wall of the cap creates at least one channel axially extending along the stem. The at least one channel creates a path between the cap and the flange of the stem.

Abstract: The present invention provides an air discharge implement for a portable pressurized sprayer comprising a cylindrical main body of discharging duct, an external hood jacket, a conical moving plug and a compression spring. Wherein the main body of hollow discharging duct includes a cylinder bore, a cylindrical discharging mount for containing conical moving plug, and an air passage interposed between hollow discharge chamber and cylinder bore. The external hood jacket is a hollow holder to contain compression spring. The conical moving plug includes a top cone and a planar base with plural footing legs so that a water flow gap is created between the planar base and the air passage at the cylinder bore. If the present invention is properly connected to a water outtake hose of a portable pressurized sprayer, either no air or certain air mingled in the compressed water, it can achieve the air-discharging effect completely.

Abstract: A pressure compensation device for compensating an internal pressure in a housing of an electrochemical device is provided, including at least one gas through-opening and at least one membrane element with a gas-permeable membrane, which is deformable depending on a change in the internal pressure and by which the gas through-opening is blocked, and a protective degassing element, which is configured and arranged in such a way that when a critical deformation of the membrane is reached, it damages the membrane in such a way that the membrane at least partially opens the gas through-opening for protective degassing of the housing. The pressure compensation device allows both reliable pressure compensation between the interior of the housing and the exterior of the housing of an electrochemical device during normal operation of the electrochemical device and also ensures reliable bursting protection in the event of excess internal pressure in the housing.

Abstract: Ventilation for a reducing agent tank, having a first reducing agent tank which is provided with a first reducing agent fill opening, a fuel tank which is provided with a fuel fill opening and a ventilation device, as well as a first line through which the first reducing agent tank is connected to the fuel tank.

Abstract: A valve assembly includes a housing. A membrane supported by the housing such that the membrane covers a vapor passage defined by the housing. The membrane allows the passage of vapor through the membrane and prevents the passage of liquid through the membrane. A flow control feature is supported by the housing and at least partially controls flow of a vapor to the vapor passage. The flow control feature enables variable flow of vapor to the vapor passage.