A check valve with a a housing having an inlet connected to an outlet. A stop and a membrane are disposed in the housing. The membrane is movable and bendable to control fluid flow between the inlet and the outlet. The stop may be an elongated extension about which the membrane may bend along a line or a curve such that the extension lies between overlapping sections of the membrane.

A check valve with a a housing having an inlet connected to an outlet. A stop and a membrane are disposed in the housing. The membrane is movable and bendable to control fluid flow between the inlet and the outlet. The stop may be an elongated extension about which the membrane may bend along a line or a curve such that the extension lies between overlapping sections of the membrane.

A check valve including a valve housing defining a pair of valve openings; a pair of flappers pivotably mounted for rotation relative to the housing between an open position in which they permit fluid flow through the respective valve openings and a closed position in which they prevent fluid flow through the valve openings; and a stop element arranged such that the flappers will contact the stop element in their open positions. Each flapper includes a primary flapper element pivotally mounted to a hinge pin that extends across the valve, and a secondary flapper element. The primary flapper element further includes at least one flapper opening formed therethrough. The secondary flapper element is pivotally mounted such that it may rotate relative to the primary flapper element for opening and closing the at least one flapper opening in the primary flapper element.

An inlet tank for a charge cooler comprises a manifold portion, a turbocharger inlet port, and a supercharger inlet port. The turbocharger inlet port is in fluid communication with a compressor wheel of a turbocharger and the manifold portion of the inlet tank. An opening is formed in a sidewall of the turbocharger inlet port. The supercharger inlet port is in fluid communication with an electric supercharger and intersects the turbocharger inlet port. The opening formed in the sidewall of the turbocharger inlet port provides fluid communication between the supercharger inlet port and the turbocharger inlet port. A valve element selectively determines when a flow of air from the supercharger inlet port enters the turbocharger inlet port through the opening based on a pressure differential present between the air exiting the compressor wheel of the turbocharger and the air exiting a compression mechanism of the electric supercharger.

A check valve comprises a valve housing defining a valve opening and a pair of flapper elements pivotably mounted relative to the housing for rotation between an open position in which they permit fluid flow through the opening and a closed position in which they prevent fluid flow through the opening. Each flapper element comprises a first surface facing the opening and a second surface opposite the first surface and facing away from the opening. The valve further comprises a bowed leaf spring member mounted to the second surface of each flapper element. The leaf spring members are arranged such that when the flapper elements move towards the closed position, the bowed leaf spring members move into engagement with one another.

The present invention relates to a check valve and, more particularly, to a check valve comprising a main disk and a separate auxiliary disk, the main disk making a rapid closing operation, and the auxiliary disk, which has an area smaller than that of the main disk, making a slow closing operation, thereby reducing the velocity of a reverse flow inside a conduit, right before the disks are finally closed, and preventing a slam (a characteristic phenomenon wherein, when the disks are closed with a bang, an instantaneous increase in pressure wave raises the possibility of piping fracture and causes noise and vibration) of the disks and water hammer.

A valve assembly and a method of additively manufacturing the same are provided. The valve assembly includes a valve housing defining first and second mounting features, such as recessed dimples or protruding bumps, positioned on opposite sides of a substantially cylindrical channel to define a hinge axis. One or more valve flaps are positioned within the cylindrical channel, each valve flap including a hinge member extending along the hinge axis and defining two or more complementary features or coupling members for engaging either the mounting features of the valve housing or an adjacent hinge member.

A check valve comprises a valve housing defining a valve opening and a web extending across the valve opening. First and second mounting posts are provided on the valve housing on opposite sides of the opening and extend away from the opening. Each mounting post has a transverse bore formed therein.

A check valve comprises a valve housing defining a valve opening. A pair of mounting posts is arranged on opposite sides of the opening. A pair of flapper elements is pivotably mounted for rotation between an open position and a closed position. The flapper elements are mounted to hinge pins mounted to respective mounting posts. A base portion of the hinge pins is formed with a sleeve having a bore which is slidably mounted on a hinge pin mounting portion of a respective mounting post.

A check valve comprises a valve housing defining a valve opening, a pair of mounting posts arranged on opposed sides of the valve opening and a hinge pin mounted between the mounting posts. A pair of flapper elements are pivotably mounted to the hinge pin for rotation relative to the housing between an open position in which they permit fluid flow through the valve opening and a closed position in which they prevent fluid flow through the valve opening. The valve further comprises a stop mounted between the mounting posts above the hinge pin and extending across the valve opening such that the flapper elements will contact the stop in their open positions. The stop is a coil spring.