Fluid flow control devices, systems, and methods may include a body extending along a longitudinal axis. The body has a fluid inlet at a first axial end of the body and a fluid outlet at a second axial end of the body. Channels may extend through an interior portion of the body between the fluid inlet at the first axial end and the fluid outlet at the second axial end. The channels collectively define fluid pathways through the body.

A damping device, in particular for damping or preventing pressure impacts, like pulsations, in hydraulic supply circuits, comprising a damping housing (1) which surrounds a damping chamber and has at least one fluid inlet (13) and a fluid outlet (15) and a damping tube (21; 51) located in the flow path between the damping inlet and outlet, said damping tube having at least one branch opening (29; 73, 75, 77, 79, 81) passing through the tube wall and leading to a Helmholtz volume (27; 53, 55, 57, 59, 61) inside of the damping housing (1) for forming a Helmholtz resonator in a region positioned inside of the length of the damping tube, characterized in that a fluid filter (35) is arranged inside of the damping housing (1) in the flow path running between the fluid inlet (13) and fluid outlet (15).

A high frequency attenuating device for an air flow induction system of a vehicle employing a thermoformed fibrous mat of any shape that fits robustly inside the duct. The dissipative nature of the fibrous mat helps in achieving broadband attenuation in the high frequency regime. The ability to manufacture the fibrous mat into any shape helps with restriction, targets different attenuation bands, and makes it more feasible to manufacture. Hybrid solutions are possible when combined with low frequency perforated silencers or high frequency QWT arrays injection molded onto them.

A cylinder porous cylinder, a gas flow control valve, and a mounting method for the gas flow control valve. The porous cylinder (1) includes a plurality of pipe bundles filled inside the pipe. A single flow passage is formed in each of the pipe bundles, such that a seepage passage is formed inside the pipe. The inner diameter, length and permeability of the pipe bundle are determined in advance based on a Reynolds number smaller than 2300. The porous cylinder (1) is capable of implementing a stable gas flow in a gas injection channel. The valve body (21) of the gas flow control valve (2) is provided therein with a plurality of tubular passages arranged in sequence along the horizontal direction of the valve body. The tubular passages include a pipe flow passage (24) and a plurality of seepage passages (25). The porous cylinder (1) is mounted in each of the seepage passages (25). A plurality of connection channels (221) are provided in the valve cap. One end of each of the connection channels (221) communicates with the interior of each of the tubular passages, and the other end of each of the connection channels (221) is provided respectively with a valve stem. The opening and closing of the plurality of tubular passages are controlled by the valve stem, thus regulating the output ratio of the injected gas. In addition, a mounting method for the gas flow control valve is further provided.

A valve assembly including a valve body defining an inlet, an outlet, a fluid flow path, and a chamber. A control element is disposed in the chamber and in the fluid flow path, and is rotatable by a valve stem about a pivot axis between an open position and a closed position. A flow conditioner coupled to the valve body and including a first end, a second end, and a plurality of channels extending between the first end and the second end. The plurality of channels are in flow communication with the fluid flow path of the valve body when the control element is in the open position. A plurality of walls separate the plurality of channels and include a first thickness and a second thickness different than the first thickness.

A pressure pulsation trap is provided. The pressure pulsation trap includes a channel extending from an inlet to an outlet, and a plurality of branches extending from the channel, each of the branches having different lengths than one another. The different lengths are configured such that the branches attenuate noise and/or vibration over a range of operating frequencies.

The present invention relates to a flow control valve to be connected to a pipe. The valve includes: a plurality of fluid transport tubes having a geometrically variable cross-section and placed in parallel with each other; and a means for connecting to the pipe and located at one end of the fluid transport tubes.

Methods, systems, and devices for dissipating fluid velocity are described. An example apparatus for dissipating fluid velocity may include an elongated pipe configured to allow fluid to flow therethrough, the elongated pipe having a first end and a second end. The apparatus may include an inlet portion at the first end of the elongated pipe, an outlet portion at the second end of the elongated pipe, and a dissipation chamber between the inlet portion and the outlet portion. The dissipation chamber may be configured to reduce a velocity of a stream of the fluid along a direction from the inlet portion to the outlet portion, where a cross-sectional area of the dissipation chamber perpendicular to the direction from the inlet portion to the outlet portion is greater than a cross-sectional area of the inlet portion perpendicular to the direction from the inlet portion to the outlet portion.

A high frequency attenuating device for an air flow induction system of a vehicle employing a thermoformed fibrous mat of any shape that fits robustly inside the duct. The dissipative nature of the fibrous mat helps in achieving broadband attenuation in the high frequency regime. The ability to manufacture the fibrous mat into any shape helps with restriction, targets different attenuation bands, and makes it more feasible to manufacture. Hybrid solutions are possible when combined with low frequency perforated silencers or high frequency QWT arrays injection molded onto them.

A valve assembly including a valve body defining an inlet, an outlet, a fluid flow path, and a chamber. A control element is disposed in the chamber and in the fluid flow path, and is rotatable by a valve stem about a pivot axis between an open position and a closed position. A flow conditioner coupled to the valve body and including a first end, a second end, and a plurality of channels extending between the first end and the second end. The plurality of channels are in flow communication with the fluid flow path of the valve body when the control element is in the open position. A plurality of walls separate the plurality of channels and include a first thickness and a second thickness different than the first thickness.