The invention relates to an implantable valve (1) for a drainage system for discharging cerebrospinal fluid, comprising: a valve housing (10) extending along a valve axis (A), an inlet (2) and an outlet (3) as well as a valve housing (10) surrounding an interior space (4), a valve body assembly (600) arranged in the interior (4) and movably arranged in the interior space (4), a first valve seat (5), wherein the valve body assembly (600) is configured to abut the first valve seat (5) to close a flow connection between the inlet (2) and the interior space (4) of the valve housing (10), a second valve seat (7) which faces the first valve seat (5), wherein the valve body assembly (600) is configured to abut the second valve seat (7) to close a flow connection between the outlet (3) and the interior space (4) of the valve housing (10), and a spring device (800) arranged in the interior space (4) which exerts a spring force on the valve body assembly (600) in the direction of the first valve seat (5).

The invention relates to an implantable valve (1) for a drainage system for discharging cerebrospinal fluid, comprising: a valve housing (10) extending along a valve axis (A), an inlet (2) and an outlet (3) as well as a valve housing (10) surrounding an interior space (4), a valve body assembly (600) arranged in the interior (4) and movably arranged in the interior space (4), a first valve seat (5), wherein the valve body assembly (600) is configured to abut the first valve seat (5) to close a flow connection between the inlet (2) and the interior space (4) of the valve housing (10), a second valve seat (7) which faces the first valve seat (5), wherein the valve body assembly (600) is configured to abut the second valve seat (7) to close a flow connection between the outlet (3) and the interior space (4) of the valve housing (10), and a spring device (800) arranged in the interior space (4) which exerts a spring force on the valve body assembly (600) in the direction of the first valve seat (5).

A water outlet valve assembly and a humidifier including the water outlet valve assembly are provided. The water outlet valve assembly is disposed at a water outlet of a water tank and includes a body and a pressure limiting portion. The body includes a housing and a valve core assembly. A flow passage is formed in the housing. The valve core assembly is capable of blocking the flow passage. The pressure limiting portion is disposed on the valve core assembly and applies a weight of the pressure limiting portion to the valve core assembly, and the pressure limiting portion provides the valve core assembly with a downward pre-tightening force, thus allowing the valve core assembly to block the flow passage. The water outlet valve assembly provides a pre-tightening force to the valve core assembly through the pressure limiting portion to be able to block the flow passage.

Disclosed is a pressure regulator, comprising: a first cylindrical chamber; a second cylindrical chamber located concentrically within the first cylindrical chamber and in thermal communication with the first cylindrical chamber; and further comprising at least one of: an internal valve, wherein the internal valve is connected at a first end to the first cylindrical chamber and at a second end to the second cylindrical chamber, wherein the internal valve allows the flow of gas from the second cylindrical chamber to the first cylindrical chamber; and an external gas chamber and an external valve, wherein the external gas chamber is located outside the first cylindrical chamber, wherein the external valve is connected at a first end to the first cylindrical chamber and at a second end to the external gas chamber, wherein the external valve allows the flow of gas from the external gas chamber to the first cylindrical chamber.

Flow control devices herein have a housing defining a plurality of parallel conduits. The first conduit has a normally closed check valve defined to open under a first preselected pressure differential controlling flow through the first conduit in a first direction of flow. The second conduit has a normally neutral check valve defined to open under a second preselected pressure differential in a second direction of flow that is opposite the first direction of flow. The third conduit defines a restriction profile, i.e., has a restrictor, having a third preselected pressure differential. The flow control devices are included as part of an engine system, more specifically a crankcase ventilation breach detection system.

Flow control devices herein have a housing defining a plurality of parallel conduits. The first conduit has a normally closed check valve defined to open under a first preselected pressure differential controlling flow through the first conduit in a first direction of flow. The second conduit has a normally neutral check valve defined to open under a second preselected pressure differential in a second direction of flow that is opposite the first direction of flow. The third conduit defines a restriction profile, i.e., has a restrictor, having a third preselected pressure differential. The flow control devices are included as part of an engine system, more specifically a crankcase ventilation breach detection system.

Embodiments of a flow control apparatus of the present invention generally include a vessel equipped with a substantially vertical, bottom-feeding liquid inlet line, a vapor space pressure equalization line, and a liquid outlet, wherein the vessel contains a pair of connected, horizontally oriented, O-ring and/or piston ring equipped sealing plates that are designed to rise and fall as a pair in response to gravity provided liquid pressure in the sump of the vessel, whereby an elevation of the sealing plates provides the liquid in fluid communication with the liquid outlet via internal orifices fluidly connected to one or more fluid conduits. Embodiments of a method of using embodiments of an apparatus of the present invention to control liquid flow are also provided.

Embodiments of a flow control apparatus of the present invention generally include a vessel equipped with a substantially vertical, bottom-feeding liquid inlet line, a vapor space pressure equalization line, and a liquid outlet, wherein the vessel contains a pair of connected, horizontally oriented, O-ring and/or piston ring equipped sealing plates that are designed to rise and fall as a pair in response to gravity provided liquid pressure in the sump of the vessel, whereby an elevation of the sealing plates provides the liquid in fluid communication with the liquid outlet via internal orifices fluidly connected to one or more fluid conduits. Embodiments of a method of using embodiments of an apparatus of the present invention to control liquid flow are also provided.

A pressure relief valve to balance the pressure between a cargo tank and the ambient atmosphere is described. The valve is so arranged that the velocity of the out flowing gas jet at no time is under a preset value when the valve is in open position. The valve comprises a valve body (2) designed to act against a valve seat (1) located in a structural outlet (5a) from the cargo tank, which valve body (2) is connected to a rod (7) extending into the structural outlet (5a) opening (5). The rod (7) is being supported and guided by a frame structure (6) extending into the structural outlet (5a) opening (5) and fixed to the structural outlet (5a).

A pressure relief valve to balance the pressure between a cargo tank and the ambient atmosphere is described. The valve is so arranged that the velocity of the out flowing gas jet at no time is under a preset value when the valve is in open position. The valve comprises a valve body (2) designed to act against a valve seat (1) located in a structural outlet (5a) from the cargo tank, which valve body (2) is connected to a rod (7) extending into the structural outlet (5a) opening (5). The rod (7) is being supported and guided by a frame structure (6) extending into the structural outlet (5a) opening (5) and fixed to the structural outlet (5a).