627results about "Venting valves" patented technology

This application relates to a liquid discharge mechanism, a battery box, a battery, and an electric apparatus. The liquid discharge mechanism includes: a valve seat having a mounting chamber; a valve core assembled on the valve seat and at least partially accommodated in the mounting chamber; and a deformation member accommodated in the mounting chamber and connected between the valve seat and the valve core. The deformation member is configured to deform after contacting a target liquid, thus causing formation of a liquid discharge channel between the valve core and the valve seat.

The automatic cover plate comprises a base, a seat ring and a toilet cover, the base is provided with an air compression device and a pneumatic limiting device, the air compression device is provided with an air return structure, and the pneumatic limiting device is provided with a slow leakage valve; the seat ring is rotatably mounted on the base, and the seat ring in a seated state can close the slow leakage valve; the barrel cover is rotationally installed on the base and is in transmission fit with the air compression device, a first reset structure matched with the pneumatic limiting device is arranged between the barrel cover and the base, and when the barrel cover rotates from the closed position to the open position, the barrel cover drives the air compression device to exhaust air in the air compression device to the pneumatic limiting device through the first flow channel; the pneumatic limiting device is driven to limit work of the first reset structure. According to the automatic cover plate, the barrel cover can be automatically closed after a period of time of defecation of a user, the problem that the user forgets to cover the barrel cover after defecation is solved, and the user is allowed to open or close the barrel cover at any time according to needs.

A fluid system is provided for an aircraft engine. This fluid system includes a lubricant reservoir and a pressure relief system. The lubricant reservoir includes an internal volume. The pressure relief system includes a sensor system, a pressure relieve valve and a controller. The sensor system is configured to provide sensor data indicative of an air pressure within the internal volume. The pressure relief valve is fluidly coupled with the internal volume. The controller is configured to control operation of the pressure relieve valve based on the sensor data.

Disclosed are an oilproof assembly, an oilproof vent valve, and a device with an oil tank. The oilproof assembly includes: a valve body, wherein a cavity is formed in the middle, the valve body includes a first end and a second end; a first filter element arranged in the cavity at the first end; a limiting part arranged in the cavity at the second end; and an elastic part arranged between the first filter element and the limiting part and configured to apply a thrust to the filter element after the first filter element absorbs oil to swell, so that at least part of oil absorbed in the first filter element can be extruded by the thrust of the elastic part. According to the oilproof assembly, the oilproof vent valve, and the device with the oil tank, the maintenance cost can be reduced, and the service life can be prolonged.

A valve connector includes a body having a first end adapted to attach to an American valve, a second end opposite the first end, and a through hole extending through both ends. A shoulder portion divides the through hole into a first accommodating portion and a second accommodating portion, with a sealing ring disposed on the second accommodating portion. A control member is movably disposed in relation to the body between a first and second position. The control member includes a body portion, a guiding hole, an abutting end, and a control end adapted to communicate with an air pump device. A venting portion is arranged between the abutting end and the control end, having a first cross-sectional area smaller than a second cross-sectional area.

The automatic cover plate comprises a base, a seat ring and a toilet cover, the base is provided with an air compression device and a pneumatic limiting device, the air compression device is provided with an air return structure, and the pneumatic limiting device is provided with a slow leakage valve; the seat ring is rotatably mounted on the base, and the seat ring in a seated state can close the slow leakage valve; the barrel cover is rotationally installed on the base and is in transmission fit with the air compression device, a first reset structure matched with the pneumatic limiting device is arranged between the barrel cover and the base, and when the barrel cover rotates from the closed position to the open position, the barrel cover drives the air compression device to exhaust air in the air compression device to the pneumatic limiting device through the first flow channel; the pneumatic limiting device is driven to limit work of the first reset structure. According to the automatic cover plate, the barrel cover can be automatically closed after a period of time of defecation of a user, the problem that the user forgets to cover the barrel cover after defecation is solved, and the user is allowed to open or close the barrel cover at any time according to needs.

A breather for a reservoir as disclosed herein may comprise a housing, a first end, and a second end. The housing may have a standpipe for at least receiving an air flow containing oil. The first end may be configured for at least receiving the air flow containing oil into the standpipe. The second end may be located at an opposite side of the standpipe from the first end. The second end may be parallel to the first end and configured for at least emitting air from the standpipe. The standpipe may be substantially cylindrical in shape and include first and second protrusions integrally formed in an inner wall of the standpipe. The first protrusion may have a first protrusion peak and the second protrusion may have a second protrusion peak. The first protrusion peak and the second protrusion peak may extend in opposite directions and form an airflow distance.

An air valve includes a valve seat including a first hollow tube member defining a first air passage, a valve element including a first opening and a second hollow tube member defining a second air passage, and being at least partially arranged in the first hollow tube member, a valve cap at least partially arranged in the second hollow tube member and connected to the valve element by a first connecting strap, the valve cap including a first hand-held portion extending outwards along an edge of the valve cap, a valve diaphragm arranged in the second hollow tube member that opens and closes the second air passage, and a fixing ring including an annular part and a second hand-held portion extending outwards along the annular part, the annular part being arranged on the first hollow tube member and being connected to the valve element a second connecting strap.

A pressure-regulating valve for escaping a fluid inside an enclosure from an opening of the enclosure when internal pressure of the fluid rises. The pressure-regulating valve includes a cover part that includes a circumferential edge surrounding the opening in a plan view and that covers the opening, a seal part positioned between the circumferential edge of the cover part and a surface of the enclosure, an elastic member configured to generate urging force urging the cover part toward the enclosure in a first direction, and a base part that is fixed to the enclosure and that supports the elastic member such that the elastic member expands and contracts in the first direction.

A valve assembly includes a body engageable with a container, an internal cavity, and a vent outlet. A wall divides the internal cavity into a first chamber and a second chamber, the first chamber being between the bottom end of the body and the wall, and the second chamber being between the top end of the body and the wall, in communication with the vent outlet. An umbrella valve is coupled to the wall and has a central passage and an umbrella portion. The umbrella portion is positioned within the second chamber and is configured to engage a top side of the wall. The umbrella portion is configured to deform away from the top side of the wall to vent a gas along a first pathway from the first chamber to the vent outlet in response to pressure within the first chamber exceeding a cracking pressure of the umbrella valve.

The present invention relates to the technical field of ship ventilators, and discloses an improved structure of a ship ventilator, wherein the guide rail assembly comprises a sliding column, the top of the sliding column is fixedly connected to a hollow shell, the outer wall of the sliding column is slidably connected to a sliding block 1, the outer wall of the sliding block 1 is fixedly connected to a connecting frame 2, the end of the connecting frame 2 away from the sliding block 1 is fixedly connected to a circular plate 1, the side of the sliding column away from the sliding block 1 is slidably connected to the sliding block 2, the outer wall of the sliding block 2 is fixedly connected to a connecting plate 1, the end of the connecting plate 1 away from the sliding block 2 is fixedly connected to a fixing plate, and the bottom of the fixing plate is fixedly connected to an annular plate by setting the guide rail assembly to prevent the exhaust port from being blocked due to the displacement of the connection caused by the strong wind and waves at sea.

The utility model provides a vehicle speed reducer and an automobile, the vehicle speed reducer comprises a speed reducer shell and a speed reducer body, one side of the speed reducer shell is sunken to form a labyrinth structure, the labyrinth structure is provided with an oil gas cavity, a ventilation channel and an overflow channel, and the ventilation channel and the overflow channel both communicate with the oil gas cavity; the vehicle speed reducer further comprises a labyrinth cover piece and a ventilation valve assembly, the labyrinth cover piece is arranged on the labyrinth structure in a covering mode, the labyrinth cover piece is provided with an air inlet channel, and the ventilation valve assembly is installed on the ventilation channel. A mixture of oil and gas in the speed reducer shell flows into the oil gas cavity through the gas inlet channel, the oil flows back into the containing cavity from the overflow channel, and the gas is discharged from the ventilation valve assembly. According to the vehicle speed reducer, the ventilation valve assembly and the labyrinth structure are integrated on the speed reducer shell, and the air tightness, the dustproof and waterproof performance and the compactness of the whole structure of the speed reducer are improved.

The present technology relates to a breather assembly. The breather assembly has an assembly body having a coupling structure configured to be coupled to a housing, an assembly opening, and an environmental opening. The assembly body is configured to define an airflow pathway between the assembly opening and an outside environment through the environmental opening. A conductive shield is coupled to the assembly body and disposed across the assembly opening. The conductive shield defines a portion of the airflow pathway. The conductive shield is configured to be in conductive communication with the housing in response to the coupling structure being coupled to the housing.

A pressure equalization apparatus comprises a main element, a sealing device, and a connection device for connecting the main element and the sealing device. The sealing device sealingly bears against the main element when the pressure equalization apparatus is in a closed state and is fixed relative to the main element via the connection device. A fixing connection between the main element and the sealing device which is formed thereby can be released in order to unblock a fluid connection between the interior of the pressure equalization apparatus and surroundings of the pressure equalization apparatus. The connection device comprises a spring element, the spring force of which acts in particular in a direction extending crosswise to an opening direction of the pressure equalization apparatus.

The present disclosure relates to the field of vehicles, and specifically provides a valve for a battery pack. The valve comprises: a valve bracket having a first opening located at one end and a second opening located at the other end; a breathable membrane that covers the first opening; and a piston that covers the second opening and includes a hole closed by an openable sealing portion. The present disclosure also discloses a battery pack using the above-mentioned valve. By using the above-mentioned valve, the pressure inside and outside the battery pack can be balanced, effective waterproof and dustproof can be achieved, and the pressure inside the battery pack can be more effectively controlled when it rises rapidly.

The utility model discloses a distributed round hole ventilation groove for fermentation of Pu'er tea, which comprises a fermentation box body, a plurality of ventilation round holes communicated with the inside are formed in the bottom of the fermentation box body; and the rectangular connecting plate is arranged at the bottom of the fermentation box body, and the top of the rectangular connecting plate is fixedly connected with a plurality of limiting cylinders matched with the ventilation round holes, and relates to the technical field of Pu'er tea fermentation. Through cooperation of parts such as the limiting cylinders, the limiting cylinders move upwards, when the ends of part of the limiting cylinders enter the inner sides of the ventilation round holes, the single-rod piston hydraulic cylinders stop moving, and at the moment, a small part of the ventilation round holes are blocked through the limiting cylinders, so that the leakproofness of the device is improved, and the service life of the device is prolonged. Contact between the tea leaves and oxygen is reduced, excessive fermentation of the tea leaves and decline of the quality of the tea leaves are prevented, and therefore the overall practicability of the device is improved.

A filling device (1) for a packaging machine (100) for filling bulk material (300) into a container (200) comprises a housing (2), a filling channel (3) formed in the housing, and a controllable channel shutter (4) for controlling the filling of bulk material into the container. The channel shutter (4) comprises at least one rotating closing element (6) which, in the installed state, is accommodated in a closing receptacle (5) in the housing (2), the closing receptacle (5) extending in the transverse direction (7) to the filling channel (3), through the filling channel (3) and at least partially through the housing (2). The closure part (6) comprises side walls (13, 14) and a closure element (15), the side walls (13, 14) in the closure receptacle (5) in the housing (2) being arranged outside the region of the filling channel (3), and the closure element (15) being arranged inside the closure receptacle (5) in the region of the filling channel (3). A circumferential seal (16) is arranged on the side wall (13, 14) for forming a seal between the side wall (13, 14) and the closed receptacle (5). Furthermore, a seal (19) is arranged on the closing element (15), perpendicular to the filling channel (3).

A ventilation system is provided for persistent natural ventilation by circulation of air between an interior space and an external environment. In one example, the ventilation system includes an air intake including a domed upper cover with exterior windows which allow air to circulate through an upper chamber, a baffle around floatable elements, the baffle including an annular protective screen and valve windows, a lower chamber fluidly coupled to each of the upper chamber via the baffle and an interior duct via a main window thereof, wherein the interior duct is fluidly coupled to the interior space, and wherein the floatable elements are positioned on respective seats when no liquid is present, each of the seats spaced a distance opposite to a respective one of the valve windows. Responsive to liquid entering the upper chamber via the exterior windows, the valve windows may be automatically blocked by the floatable elements.

The utility model relates to a ventilation valve and a power system of an oil-cooled motor, the ventilation valve is used for balancing the pressure difference between the inside and the outside of the oil-cooled motor, the ventilation valve comprises a ventilation channel main body, an air outlet ventilation valve and a hydrophobic ventilation film, the ventilation channel main body is used for being connected with the inside of the oil-cooled motor, and the air outlet ventilation valve is used for leading out air in the oil-cooled motor. The air inlet ventilation valve is used for guiding air into the oil cooling motor, the hydrophobic ventilation film is arranged on the outer side of the air inlet ventilation valve, and the air can enter the air inlet ventilation valve only after passing through the hydrophobic ventilation film; and the air outlet ventilation valve and the air inlet ventilation valve are respectively connected to different positions of the ventilation channel main body. According to the scheme, the air outlet ventilation valve and the air inlet ventilation valve are arranged, and the hydrophobic ventilation film is arranged on the outer side of the air inlet ventilation valve and filters water vapor in inlet air; in addition, an air inlet channel and an air outlet channel of the ventilation valve do not coincide, mutual interference of air inlet and air outlet is avoided, oil dirt accumulation near the air inlet ventilation valve is avoided, and therefore the service life of the hydrophobic ventilation film is prolonged.

The automatic exhaust valve comprises a valve body, a valve deck, an automatic exhaust assembly and a suspension part, one end of the valve body is connected with a water pipe through a drainage hole, the other end of the valve body is connected with the valve deck in a sealed mode, the periphery of the valve body is connected with the automatic exhaust assembly through a ventilation pipeline, and the suspension part is located in a cavity of the valve body and connected with the automatic exhaust assembly. The automatic exhaust assembly comprises an exhaust plug, an elastic piece and an exhaust pipe which are sequentially connected in the axial direction of the automatic exhaust assembly, the exhaust plug and the exhaust pipe are sleeved with the elastic piece, and the exhaust plug is located at the end, stretching into the ventilation pipeline, of the automatic exhaust assembly. A sealing groove is formed in the end, facing the elastic piece, of any one of the venting plug and the exhaust pipe, a sealing piece is embedded in the sealing groove, and the two ends, in the axis direction of the automatic venting assembly, of the sealing piece abut against the venting plug and the exhaust pipe in an interference fit mode respectively. The end, facing the elastic piece, of the exhaust plug is provided with a sealing protrusion, and the end, facing the exhaust pipe, of the sealing protrusion is embedded into the exhaust through hole of the exhaust pipe.

This invention relates to a valve assembly disposed between a vacuum pump and an adsorption pad in a vacuum system, thereby enabling venting of the pad. The valve assembly includes: a main body having a space within an internal channel; a valve plate capable of being raised / lowered within the space; and vents variablely configured by air gaps formed at the contact points between the valve plate and the upper sill of the space. Initially, temporary venting is performed through the open channel; subsequently, as the plate 'rises,' micro-venting is performed through the vents formed at the contact points between the plate and the upper sill.

An intelligent pressure solenoid valve includes a valve body, an air valve stem and a pressure cap, the valve body is provided with an electromagnetic component and an air vent, the air vent penetrates through the electromagnetic component, the air valve stem passes through the air vent, and the air valve stem, the electromagnetic component and the valve body are integrated through a molding process; both ends of the air valve stem penetrate through the upper end face and the lower end face of the valve body, respectively, the pressure cap is in snap-fit connection with the upper end of the air valve stem, and a permanent magnet is provided in the pressure cap.

A pressure relief valve having an inlet port and an outlet port is disclosed for retaining pressure from an outlet until a set pressure is achieved at the inlet. The valve is disposed between the inlet and outlet ports and has a valve member movable between an open position that allows fluid flow between the ports and a closed position that prevents fluid flow. Inlet pressure acts on the valve member to increase its closing force. A movable sensing spindle is provided in fluid communication with the inlet pressure and a reference pressure, the sensing spindle having a first position and a second position. As the pressure difference between the inlet pressure and the reference pressure increases toward the set pressure, the sensing spindle moves, eventually acting on the valve member to move it away from its sealing position, thus providing an opening for fluid to flow from the inlet to the outlet.

Disclosed is a pressure relief valve with inlet and outlet ports, to hold pressure from outlet until a set pressure is achieved at the inlet. The valve has a valve member located between the inlet and outlet ports, movable between an open position to allow a fluid flow between the ports, and closed position to prevent fluid flow. Inlet pressure acts on the valve member to increase its closing force. Provided is a movable sensing spindle in fluid communication with the inlet pressure and a reference pressure, the sensing spindle having a first position, and a second position. Increased pressure difference between the inlet pressure and reference toward the set pressure moves the sensing spindle to eventually acts on the valve member to move it away from it's sealing position and thus provide an opening for fluid to flow from the inlet to the outlet.

The utility model belongs to the technical field of ventilation control solenoid valves, and provides a multistage adjustment ventilation control solenoid valve structure which comprises a valve core shell, a first pipe joint and a second pipe joint, the valve core shell is arranged above the first pipe joint, and the second pipe joint is arranged below the first pipe joint; wherein the side face of the first pipe joint is provided with a side face ventilation opening, the bottom of the first pipe joint is provided with N ventilation openings, an inner cavity of the second pipe joint is communicated with the N ventilation openings in the bottom of the first pipe joint, and the second pipe joint is further provided with a total ventilation opening communicated with the inner cavity of the second pipe joint and the outside. M valve elements are installed at the bottom of the valve element shell and extend into the first pipe connector, and the valve elements are matched with ventilation openings in the bottom of the first pipe connector. Wherein M is less than or equal to N. The three electromagnetic assemblies are arranged to control opening and closing of the three valve elements of different specifications respectively, multi-stage adjustment of ventilation flow in the flight process of an airplane is achieved, the multi-stage ventilation flow adjusting device is used for being matched with various flight working conditions of the airplane, and the working performance of a lubricating oil system is improved.

Air valves for cases are shown and described. In one embodiment, an air valve includes an insert, a receiver, and spacer. In other examples, embodiments include a case having an air valve. Examples of an air valve system may include an insert assembly, a receiver assembly, and a sealing assembly. The result is a cost effective, reliable, easy to use, air venting system.

The invention relates to a device (1) for pressure compensation in a housing (2), comprising: a first surface (3); a second surface (4), wherein the second surface (4) is arranged facing away from the first surface (3); an opening (5), wherein the opening (5) extends from the first surface (3) to the second surface (4); a gas-permeable membrane (6), which closes the opening (5) in a fluid-tight manner in the region of the first surface (3); and a cover (7), which is arranged in the region of the second surface (4) and covers at least a central region of the opening (5) when viewed in the perpendicular direction to the second surface (4).

The application provides an exhaust valve core assembly and an assembling device, and belongs to the technical field of valves. The valve core assembly comprises a bottom cover, an outer cover, a sealing gasket, a spring and a rivet. The back surface of the outer cover is provided with a groove part, the bottom cover is arranged in the groove part, the sealing gasket is arranged in abutment between the bottom cover and the outer cover, the center of the bottom cover, the outer cover and the sealing gasket is coaxially provided with a through hole, the rivet passes through the through holes of the outer cover, the sealing gasket and the bottom cover in sequence to form riveting, the front surface of the outer cover is provided with an air hole, the front surface of the outer cover is provided with a sunken part, the side of the sunken part towards the sealing gasket forms an upper annular ridge, the upper annular ridge abuts against the sealing gasket to form sealing, and a cavity is formed between the inner side of the upper annular ridge and the sealing gasket. The valve core assembly effectively solves the problem of loose sealing caused by plane contact. The upper annular ridge reduces the contact area of the sealing gasket and the outer cover, and the cavity design reduces the risk of adhesion of the two after long-term sealing, so that the opening force of the valve core is stable.