Abstract: A compressor includes a shell, a muffler plate, first and second scroll members, and first and second sealing members. The shell defines first and second pressure regions separated by the muffler plate. The first scroll member includes a first end plate and a first scroll wrap. The first end plate defines an annular recess and a discharge recess. The discharge recess is in communication with the first pressure region. The second scroll member includes a second end plate and a second scroll wrap. The second scroll wrap meshingly engages the first scroll wrap to define a compression chamber therebetween. The first sealing member is at least partially disposed in the discharge passage and fluidly separates the first and second pressure regions from each other. The second sealing member is at least partially disposed in the annular recess.

Abstract: A noise attenuating device for reducing acoustic resonance in a cavity of an aircraft with an opening in a skin of the aircraft defining a first surface area and an opening peripheral edge includes a connection mechanism for securing the noise attenuating device in proximity to the opening in the skin of the aircraft and an exterior surface. The exterior surface defines a second surface area that is less than the first surface area of the opening and a device peripheral edge, which has a first section having an edge profile complimentary to at least a portion of the opening peripheral edge and a second section having an indented edge profile in relation to the first section such that when the noise attenuating device is secured within the opening, at least one gap is formed between the device peripheral edge and the opening peripheral edge.

Abstract: A dump valve positioned between two valves inline valves, wherein the dump valve is configured to remove fluid and/or pressure acting upon the inline valves.

Abstract: The air flow of an HVAC system for a multi-story building B is controlled by optimizing the pressure setpoint at the return air plenum PL-1 used for removing or recirculate air from the building, by measuring a pressure differential between the building B air and atmosphere A air at a sensor location P-2, computing a desired pressure differential between the building B air and atmosphere A air, based upon a computed stack effect pressure that is expected to develop at the sensor location on the building for the current inside and outside air temperature in the absence of mechanical action, and controlling the return air fan and damper D-1 to pressurize the air in at the sensor location to produce the desired pressure differential between the building B air and atmosphere A air at the sensor P-2 location.

Abstract: The present application provides a system for treating malodorous gas from sludge, which includes an air compressor, a first pressure swing adsorption tower, a second pressure swing adsorption tower, a buffer tank, a decomposition tank, an exhaust gas scrubber and a vacuum device. The present invention relates to a process for treating malodorous gas from sludge treatment, which includes: compressing the malodorous gas by using an air compressor, and adsorbing by using a pressure swing adsorbent. The air for removing the malodorous component is configured for sludge separation and aerobic aeration in the treatment tank. When the pressure swing adsorbent reaches the design upper limit value, the intake air is stopped, decompression and desorption start, and the enriched malodorous component is sent to catalytic combustion or photocatalytic decomposition, and then the acid gas in the tail gas is neutralized with an alkaline absorbent, and finally discharged to the standard.

Abstract: A pressure valve to be arranged in a seal member sealing a casing in which a capacitor element is housed, the pressure valve having a base end positioned within the case and a tip positioned outside the case. The pressure valve includes a tapered portion having a tapered shape. At the top portion of the tapered portion, there is formed a slit able to undergo a state change between a close-state and an open-state by elastic deformation. When the casing internal pressure is less than a certain value, the slit maintains the close-state. When the casing internal pressure has reached the certain value, the slit undergoes a state change to the open-state, whereby the inside and outside of the case communicate with each other and the internal pressure is released from within the case.

Abstract: A flow control device has a duct section with a plurality of damper blocking elements, each having a major plane. The damper blocking elements are pivotably connected to the duct section and movable in a range that is limited to ensure that, when the duct section is mounted in a preferred orientation, the damper blocking element major planes always form an angle of at least 45 degrees from the horizontal throughout the range. The range is such that the plurality of damper blocking elements can selectively close and open the duct. The blocking elements can completely close the duct, for example, to block natural convection.

Abstract: Disclosed are an apparatus for treating a substrate and a method of treating substrates. The apparatus includes an inlet valve through which a supercritical fluid flows into the process chamber until an inner pressure of the process chamber reaches a first pressure and a turbulent flow generator turbulently supplementing the supercritical fluid into the process chamber until the inner pressure of the process chamber is recovered to the first pressure. A pressure drop module partially removes a supercritical mixture from the process chamber until the inner pressure of the process chamber is dropped to the second pressure. A pressure drop mode and a supplemental mode may be alternately repeated by the flow controller.

Abstract: A compressor may include a scroll member, a hub, a discharge valve and a bypass valve. An end plate of the scroll member includes a recess, a discharge passage in communication with the recess, and a bypass passage in communication with the recess and disposed radially outward relative to the discharge passage. The hub may be received in the recess and may include a central opening in communication with the discharge passage and the bypass passage. The discharge valve may be disposed between the hub and the end plate and may control fluid flow through the discharge passage. The bypass valve may be disposed between the hub and the end plate and may be movable between a first position restricting fluid flow through the bypass passage and a second position allowing fluid to flow through the bypass passage, around the discharge valve and through the central opening.

Abstract: A disclosed lubrication pump includes a main pump stage, an auxiliary pump stage, and scavenger pump stages. The lubrication pump therefore may be driven by a common shaft of the accessory gearbox.

Abstract: A pressure sensor is provided, which includes a pressure detector that has a pressure receiving surface in contact with a liquid, and detects a pressure of the liquid to a pressure receiving section, and a housing having a housing inner wall that demarcates a liquid chamber, wherein the housing inner wall is provided with an inflow hole, and an outflow hole, at least a part of a connecting portion, which is connected to the pressure receiving surface, of the housing inner wall is formed as an inner wall of the outflow hole, and the housing inner wall at the portion formed as the inner wall of the outflow hole protrudes more outward of the liquid chamber than the other connecting portion adjacent to the portion formed as the inner wall of the outflow hole.

Abstract: A flow control device has a duct section with a plurality of damper blocking elements, each having a major plane. The damper blocking elements are pivotably connected to the duct section and movable in a range that is limited to ensure that, when the duct section is mounted in a preferred orientation, the damper blocking element major planes always form an angle of at least 45 degrees from the horizontal throughout the range. The range is such that the plurality of damper blocking elements can selectively close and open the duct. The blocking elements can completely close the duct, for example, to block natural convection.

Abstract: A one way valve is revealed. The one way valve includes a valve seat and a valve member supported by the valve seat. A hole is mounted at a center of the valve base while an outer circular base is disposed around the hole and an inner circular base is arranged at a center of the hole. The inner circular base has a circular sidewall around an opening. At least one gap is radially formed on the circular sidewall and the gap is vertically penetrating the circular sidewall. The valve member consists of a membrane portion and a rod portion extended from one side of the membrane portion. Thereby the rod portion is passed through the gap of the inner circular base to be set into the opening of the inner circular base.

Abstract: A tank ventilation valve has a housing (21), a closing member (4), a sealing seat (5) and a first space (17). A second space (18) is connected to the first space (17) via a control opening (19) that surrounds the sealing seat (5). A spring (6) pretensions the closing member (4) against the sealing seat (5) and closes the control opening (19). The closing member (4) opens as a function of a pressure difference between the first and second spaces (17, 18). The opened closing member (4) opens the control opening (19) so that the first space (17) is connected to a first line (2) connects to fresh air. The second space (18) is connected to a second line (3) that is attachable to a filter. Structure is provided to exert a further negative pressure on the closing member (4) to move the closing member (4) into the open position.

Abstract: A valve assembly includes a valve with an annular seal installed therein. The annular seal includes an inner sealing member formed with an annular channel with an open end that faces downwards. The inner sealing member and the annular channel define an annular flap with an outer wall, which is an inner wall of the annular channel. A floating member is arranged to float up and rise with a water level present in a portion of the valve and press against the annular seal.

Abstract: A contaminant detection system for use in a fluid distribution system includes a first detector assembly including an inlet housing and detector screen through which fluid in the fluid distribution system passes and a first sensor to detect a first type of contaminant caught in the detector screen; and a second detector assembly including a second sensor which activates when the inlet housing or detector screen is clogged to detect whether the fluid contains a second type of contaminant when the first sensor does not detect the first type of contaminant.

Abstract: A valve assembly is provided that is suitable for use in a fuel fill line. The valve assembly may include a housing having a flange that surrounds the housing. A weld foot can be molded over at least a portion of the flange. A lip seal may be disposed between the flange and the weld foot. The lip seal includes a first lip and a second lip, and the first lip and the second lip may both be in contact with a surface on one of the flange and the weld foot.

Abstract: A multi-layer one-way valve (100) includes: a first layer (10) having at least one first opening (12) formed therein; a second layer (20) having at least one second opening (22) formed therein; and, a third layer (30). The first and second layers are joined together such that at least one first channel (14) is defined therebetween, and the second and third layers are joined together such that at least one second channel (24) is defined therebetween. Additionally, an amount of flow-able liquid is deposited in the first channel between the first and second openings. Suitably, the valve selectively opens to permit gas flow through the first and second channels in response to a pressure differential, the rate of gas flow through the valve is exponentially proportional to the pressure differential.

Abstract: Provided is an electronic circuit unit to be mounted within a casing of an automatic transmission for a vehicle. An electronic circuit body including circuit-side terminals protruding in an outward direction from a main-body, connectors to be connected to the electronic circuit body, a cover, and a base member having a placing face on which the cover, the electronic circuit body and the connectors are placed. The cover is provided with a main-body covering part, fitting-portion covering parts and which cover a fitting-portion of the circuit-side terminals and fitting parts of the wire-side terminals from a side opposing to the placing face, and a restricting part for regulating the detachment of the connectors from the fitting position to the detached position.

Abstract: A vehicle-carried air compression device includes a case installed with an air compressor therein, a tire repairing container containing a liquid adhesive, and a flexible linking tube. An air inlet coupler of the tire repairing container is connected with an air outlet manifold of the air compressor. An end of the flexible linking tube is coupled to an adhesive outlet coupler of the tire repairing container, and the other end of the flexible linking tube is combined with a protection adapter for coupling to a tire nipple. Before the protection adapter is connected with the tire nipple, the other end of the flexible linking tube is closed by the protection adapter, so that the liquid adhesive in the tire repairing container will not shoot out suddenly because of improper handling.

Abstract: A high-pressure pump has a metering valve and a valve stopper. The stopper has a regulation portion which an end surface of the valve is brought into contact with. An outer diameter of the regulation portion is equal to an outer diameter of the outer peripheral surface of the valve. A cylindrical sleeve is disposed around the regulation portion. When the end surface of the valve is in contact with the regulation portion, the sleeve covers a tapered surface of the valve.

Abstract: A valve 10, for relieving ground water pressure on a swimming pool for containing pool water. A body 30 defines a flow path. An element 20 is mounted to be moved in a direction from a position, in which at least one feature 22 of the element co-operates with at least one feature 33 of the body to form a sealing arrangement to block the flow path to retain the pool water, to a position in which the flow path is open to allow ground water into the swimming pool. The sealing arrangement defines an effective area over which the ground water pressure acts to drive the element in the direction, and an effective area over which pool water pressure acts to drive the element opposite the direction. The co-operable features are configured such that a ratio, of the effective area over which the ground water pressure acts to the effective area over which pool water pressure acts, has a value of at least 0.9.

Abstract: A venting valve for a container for liquid has a valve housing having a pressure compensation passage connecting the container interior with the container exterior. A valve member is arranged in the valve housing and controls the pressure compensation passage. An air-permeable filter body is secured within the valve housing and covers the pressure compensation passage, wherein a face of the filter body faces the container interior. A filter element covers the face of the filter body that is facing the container interior. The filter element is a securing element for the filter body. The filter element closes off an opening of the valve housing that opens into the container interior.

Abstract: In at least some implementations, a fuel tank includes a tank body defining a chamber adapted to receive liquid fuel therein, a reinforcement for the tank body to permit the pressure within the chamber to exceed the vapor pressure of a fuel to be received within the chamber, and an inlet to the tank body through which fuel is added to the chamber. The inlet is configured to mate with a refueling nozzle through which fuel is added to the chamber to permit refueling the tank and maintaining the pressure in the chamber above atmospheric pressure.

Abstract: A hot water storage unit 100 having a vessel 102, in which hot water is storable, an outer casing 104 enclosing the vessel 102, a hot water outlet 114 for heated water to exit from inside the vessel 102, and a relief device 106. The relief device 106 relieves excess pressure and/or temperature from inside the vessel 102 by allowing water to escape from inside the vessel 102 and exit from the relief device 106. The relief device 106 comprises a housing 108 containing the operational components of the relief device 106. The relief device 106 is removably retainable relative to the vessel 102 such that the housing 108 of the relief device 106 is located substantially behind the outer casing 104 of the hot water storage unit 100 on the inner side 122 of the outer casing 104.

Abstract: A valve assembly for a compressor includes a flow passage defining an inlet, an outlet, and a valve seat located proximate the inlet. The valve assembly also has a valve member that includes a head portion engageable with the valve seat. The head portion has a front face, a rear face located closer to the outlet than the front face, and a side face extending between the front and rear faces. The head portion further has a first convex curvature formed between the front face and the side face. The valve member also includes a collar portion extending toward the outlet from the rear face of the head portion.

Abstract: A circuit pressure control unit includes a relief valve and a variable throttle valve. The relief valve is connected to a connecting passage communicating with an actuator upstream. The variable throttle valve is disposed upstream of the relief valve and is configured to change an opening degree thereof according to a control signal from a controller.

Abstract: A pouch air valve used on a sealing pouch comprises a coupling duct and a piercing base. The coupling duct includes a duct, an air valve and a first suction plate. The piercing base has a piercing head and a second suction plate. The first suction plate surrounds and seals the duct to form coupling therewith. The piercing head has an airflow passage running through two sides thereof. The second suction plate surrounds and seals the piercing head to form coupling therewith. The piercing base is positioned at one side of the sealing pouch while the duct is directly aligned and coupled with the piercing head from another side of the sealing pouch so that the piercing head can pierce through the sealing pouch to allow the first and second suction plates to attract each other and anchor on the sealing pouch which serves as separation.

Abstract: A ball valve includes a valve body, the valve body has a valve cavity, a first connecting port and a second connecting port; a valve rod and a valve ball are provided inside the valve cavity, the valve ball is provided with a valve ball passage, the valve rod is configured to drive the valve ball to rotate to allow or disconnect a communication between the first connecting port and the second connecting port via the valve ball passage; wherein, a one-way valve having a preset opening pressure is provided between the valve ball passage and the first connecting port, and in a case that the valve ball disconnects the communication between the first connecting port and the second connecting port, the one-way valve is configured to allow a one-way communication from the valve ball passage to the first connecting port.

Abstract: The present invention relates to an anti-shake flow-limiting cutoff valve, comprising a flow stop valve, a cutoff valve and a check structure. Said flow stop valve comprises a valve body, a valve seat, a piston and a biasing component. The check structure is arranged downstream said flow stop valve to prevent fluid from flowing back. In case of a sudden excessive water flow, the flow stop valve is closed under impact of excessive water pressure to block the water flow. At this time, since the liquid flow in the pipeline is suddenly blocked, the liquid flow remaining in a pipeline downstream the flow stop valve tends to form a reverse flow to impact the flow stop valve, thus shaking the flow stop valve, which may further lead to insufficient close or damage of the flow stop valve.

Abstract: A check valve apparatus includes at least one first test channel including a first pathway extending through a valve body and in communication with a flow path. The pathway is configured to receive a test stick for inserting through the pathway of the test channel to engage a disc such that the disc moves from the open position to the closed position. In further examples, methods for testing a check valve include the step of moving an end of a test stick to engage a downstream face of a disc such that the disc is moved against a bias of a biasing device from the open position to the closed position. The method further includes the step of inspecting an interior portion of the check valve apparatus.

Abstract: A check valve comprises a housing, a fluid passage, a seat, a valve member and a stop. The fluid passage extends through the housing. The seat is disposed in the fluid passage. The valve member is positioned in the passage to engage the seat. The stop extends through the housing to engage the valve member. The stop is accessible from outside the housing to adjust a distance the valve member can travel from the seat. In one embodiment, the stop includes a variable stop feature, such as an offset pin or a cam. In another embodiment, the stop includes a pump control valve. In yet another embodiment, the housing includes markings to indicate a position of the stop. The valve member comprises a ball or a poppet in different embodiments.

Abstract: A rotating electrical machine cooling system includes a cooling structure for a rotating electrical machine that is mounted on a hybrid vehicle, and a controller. The cooling structure includes a coolant discharge channel and a coolant supply channel through which a coolant is circulated between an oil pump unit and the interior of a case body that includes the rotating electrical machine therein. The cooling structure further includes a bypass flow channel that connects the oil pump unit and the interior of the case body with each other, and a relief valve that is provided in the bypass flow channel. The oil pump unit includes a mechanical oil pump and an electric oil pump.

Abstract: Described herein are several embodiments and implementations of a fluid receiver with a removable sleeve. According to one representative embodiment, an apparatus for receiving a fluid from a fluid source includes a base having an inlet and an outlet. The base defines an interior cavity through which fluid is flowable from the inlet to the outlet. The apparatus also includes a valve that is movable relative to the base between a closed and open position. In the closed position, the valve is in sealing engagement with the base to prevent fluid flow through the inlet. In the open position, the valve allows fluid flow through the inlet. The apparatus further includes a removable sleeve that is removably securable about a portion of the base. The valve remains in the closed position as the removable sleeve is removed from and secured about the base.

Abstract: A major challenge for the general use of “lab-on-a-chip” (LOAC) systems and point-of-care (POC) devices has been the generally complex and need for sophisticated peripheral equipment, such that it is more difficult than anticipated to implement low cost, robust and portable LOAC/POC solutions. It would be beneficial for chemical, medical, healthcare, and environmental applications to provide designs for inexpensive LOAC/POC solutions compatible with miniaturization and mass production, and are potentially portable, using compact possibly hand-held instruments, using reusable or disposable detectors. Embodiments of the invention address improved circuit elements for self-powered self-regulating microfluidic circuits including programmable retention valves, programmable trigger valves, enhanced capillary pumps, and flow resonators.

Abstract: A system for collecting and accumulating excess water from one or more in-building sources and delivering it to one or more flushing toilet tanks and possibly also to one or more other in-building consumption devices, such as washing machines or utility faucets. The in-building sources may include any of condensate from an air conditioner, cool water in a hot water supply pipe emerging during initial flow, treated waste water and collected rain- or snow water. At the heart of the disclosed system is an accumulation tank of large capacity, having at least two inlets and at least one outlet. One of the inlets is connected to the main water supply system and includes a valve, configured to let fresh water flow into the main tank whenever the level of the water stored therein falls below a given height.

Abstract: A pressure controlled valve having a housing with a first pressure chamber for communication to a pneumatically pressurized control source. The housing has an inlet for communication with a pneumatic supply source and outlet selectively in fluid flow with the inlet. A movable valve selectively opens and closes with respect to a valve seat for selectively opening a pathway from the inlet to the outlet and closing the pathway between the inlet and outlet. The pressure chamber may be sealingly and fluidly separated from the pathway between the inlet and the outlet. The pressure chamber provides a closing biasing force on the movable valve and a resilient spring mounted in the housing provides an opening biasing force on the movable valve.

Abstract: A pressure relief tube or enclosure such as for an auger screw. In one embodiment, a pressure relief tube may comprise at least one hatch that is adapted to expand in response to force applied from within the tube. An example of the pressure relief tube may automatically adapt or adjust to potential problem material in the tube to allow for conveyance or clearance of the problem material. Another example of the pressure relief tube may be manually adapted or adjusted to facilitate conveyance or clearance of the problem material. Related systems and methods comprising a pressure relief tube are also provided.

Abstract: A hydrostatic power-unit (7) is connected with an internal combustion engine (2). The suction side (S) of the power-unit (7), when operating as a pump, sucks hydraulic fluid from a tank (9) and delivers into a delivery side (P), and when operating as a motor is driven by hydraulic fluid from a hydraulic accumulator (20). A check valve device (30) is located in the suction side (S) to provide a pressure increase when the power-unit (7) is operated as a motor. The check valve device (30) has a check valve (32) operated by an actuator device (31). The actuator device (31) actuates the check valve (32) between a closed position (32a) in which a connection of the suction side (S) with the tank (9) is shut off, and an open position (32b) in which the connection of the suction side (S) to the tank (9) is opened.

Abstract: A check valve structure has a first space and a second space. The check valve structure is configured to allow a flow of a fluid from the first space to the second space and to inhibit flow of the fluid from the second space to the first space. The check valve structure has a partition wall arranged between the first space and the second space and provided with a communication hole providing communication between the first space and the second space, an elastic film body for covering the side of the second space of the communication hole so as to prevent a reverse flow of the fluid, an elastic member having a wall portion surrounding the communication hole for holding the elastic film body, and a nipping member for nipping the elastic member with the partition wall.

Abstract: Various embodiments of valve assemblies are provided for use in connection with the fluid systems of machines such as engine-powered machines. The valve assemblies may be used for performing fluid refill operations, fluid evacuation operations, fluid purge operations, and other types of fluid operations in connection with machine maintenance.

Abstract: The present application provides a water distribution system with a flow of water therethrough. The water distribution system may include one or more water lines, a number of flow control passages in communication with the one or more water lines, a number of flow controllers with a number of preset flow rates positioned about the flow control passages, and a number of flow control valves positioned about the flow control passages such that opening one of the flow control valves allows the flow of water to flow through one of the flow control passages with the preset flow rate.

Abstract: The present invention is a reversed wastewater overflow prevention system that provides alternate wastewater routing in case of main sewer blockage as well as home detection and alert system of wastewater drainage problem. Its main components include a wastewater overflow conduit outfitted with an overflow water sensor that is connected to an alarm, and one or more wastewater backflow preventers. The system application is both in new construction, residential and commercial, as well as in retrofitting existing systems. When all the components are combined the system provides both an alternate route for reversed wastewater to exit the building wastewater drainage system into an overflow leaching field and an alert system that provides warning about a drainage system problem.

Abstract: A backflow prevention assembly for global use with dispensers requiring a variety of backflow prevention devices based on regulatory standards is provided. The assembly includes a housing comprising first and second housing members and including quick connector attachments extending therefrom. The quick connector attachments are non-threaded members configured to be attached to the various measurement and types of connections found throughout the world. A cover is provided for venting purposes to reduce the backflow siphoning forces or pressure, which causes the backflow of a product chemistry. Furthermore, a backflow prevention device is configured to be fluidly coupled to the housing of the present invention to provide for one way flow and the prevention of backflow of a product chemistry into a water supply. The flow control may be selected based on the regulatory standards of the location used.

Abstract: An actuation device comprises a housing comprising one or more ports, a magnetic valve component, and a central flowbore. The central flowbore is configured to receive a disposable member configured to emit a magnetic field, and the magnetic valve component is configured to radially shift from a first position to a second position in response to interacting with the magnetic field.

Abstract: This invention relates to a mixing device for an aircraft air conditioning system with a supply conduit for fresh air from the air conditioning system, with a second supply conduit for recirculated air from a pressurized region of the aircraft, and with a discharge conduit for supplying mixed air into the pressurized region of the aircraft, wherein a non-return valve is integrated in the mixer.

Abstract: An apparatus includes a canister comprising a venturi component. The venturi component includes a check valve and a channel defined in the venturi component coupling the check valve to an interior cavity of the canister. Another apparatus additionally includes a plenum fluidly coupled to a venturi component via a channel defined in the venturi component such that a check valve only permits fluid to travel from the plenum into the canister.

Abstract: A tempered connecting piece is provided for transporting a viscous fluid, and includes an excess pressure release component, which separates the inside of the connecting piece from a discharge line and is fixed to an outer edge on the discharge line. The excess pressure release component is designed to release the discharge line in the event of predetermined excess pressure and a mixing element, which thoroughly mixes a fluid flow in the region of the excess pressure release component, is arranged in the inside of the connecting piece.

Abstract: Disclosed is a beverage system having an ingredient module and an ingredient dispensing valve assembly in communication with the ingredient module via at least one ingredient conduit, in which the ingredient dispensing valve assembly includes a dispensing manifold with at least one dispensing valve having a through-hole, an insert disposed within the through-hole, and a valve disposed between the insert and the dispensing valve, with the dispensing valve having a body portion and the insert is removeably connected to the body portion. The insert can be secured to the body portion of the dispensing valve by a locking mechanism, with the locking mechanism providing for removing or securing the valve from between the body portion of the dispensing valve and the insert by hand.

Abstract: A liquid pressure control valve includes at least one O-ring seal mounted, in a first sealing position, on a sealing section of a first component thereof to seal a junction between that first component and a second component which junction controls a bleed passage between. The first component is threadingly engaged within the second component. The valve includes a chamber intended to contain liquid up to a required pressure during operation of the valve. The valve includes at least one annular impingement element mounted about a reduced diameter section, relative to the sealing section, of the first component and adjacent thereto with the impingement element.