A control valve for adjusting fluid flow has a cylindrical housing bushing with a first and a second flow opening. A control bushing is arranged coaxially in the housing bushing and adjustable between control positions opening and/or closing the flow openings. A first spacer disk and a second spacer disk are arranged axially spaced apart at the housing bushing and surround the housing bushing. At least the first spacer disk is arranged eccentrically at the housing bushing by eccentric displacement relative to a longitudinal axis of the control valve. A first side of the housing bushing has a larger radial spacing relative to an outer rim of the first spacer disk than a second side of the housing bushing. At least one of the first and second flow openings is arranged at the first side of the housing bushing. A cooling system is provided with such a control valve.

A control valve (100) for regulating a fluid flow in an HVAC system is described, the control valve (100) comprising a valve housing (11) defining a flow path (12), a valve regulating body (13) arranged in the flow path (12) and being adjustable between a closed position and an open position for the fluid flow, and a flow regulating insert (14) configured to regulate the fluid flow over a range of pressure differences across the flow regulating insert (14), wherein the flow regulating insert (14) comprises a spatially fixed pin (141) and an elastically deformable annular throttling member (142) encompassing at least a part of the pin (141), wherein the annular throttling member (142) defines an orifice (143) in the flow regulating insert (14) for the passage of the fluid flow, the orifice (143) being modifiable by deformation of the annular throttling member (142) under a pressure difference across the flow regulating insert (14).

A control valve includes a casing, a valve body, and a seal cylindrical member. The casing includes an inlet and an outlet. The valve body is rotatably disposed inside the casing and includes a circumferential wall portion in which a valve hole that allows the inside and outside to communicate is formed. The seal cylindrical member includes one end portion which communicates with a downstream side of an outlet and the other end portion on which a valve sliding contact surface is provided. In the other end portion of the seal cylindrical member, a protrusion height changes continuously in a circumferential direction along a shape of an outer circumferential surface of the circumferential wall portion. A thick portion which is thicker compared to other portions is provided in a region of the other end portion of the seal cylindrical member at which the protrusion height is high.

A valve having an inlet, exhaust, control port, and diaphragm. The diaphragm moves between an open position, in which the inlet and exhaust are in fluid communication, and a closed position, in which the diaphragm blocks fluid from flowing between the inlet and the exhaust. The diaphragm moves from the closed position to the open position when an inlet force due to pressure at the inlet is greater than the sum of the biasing force and a control port force due to pressure at the control port. The valve is operable to automatically drain contaminants from a vehicle air reservoir when the vehicle's emergency brakes are set. To reduce noise, the diaphragm of the valve is preferably in tension when in the closed position, and/or the diaphragm opens a limited distance when in the open position so that a back pressure is generated at the inlet.

Described herein is a flow divider that has two chambers defined by two diaphragms and a spool disposed through the diaphragms. The spool has two tapered nozzles that extend into outlets from each chamber. Within the spool are orifices for providing fluid communication from an inlet to each chamber and dividing the flow. The flow divider generally maintains consistent flow to each outlet even when there is downstream backpressure by being able to move away from the outlet with the increased pressure to further drive the opposite nozzle into the other outlet to reduce the flow at the other outlet to balance the pressure at each outlet.

A fluid control device includes a piezoelectric pump, an inhaler, and a valve. The piezoelectric pump has a gas suction hole and a gas discharge hole. The inhaler has a container, an inhalation port, and a connection hole. The valve has a first ventilation hole, a second ventilation hole, a third ventilation hole, a first valve housing, a second valve housing, and a valve body. The first ventilation hole of the valve is connected to the connection hole of the inhaler. The second ventilation hole of the valve is connected to the suction hole of the piezoelectric pump. The third ventilation hole of the valve is opened to the atmosphere. The valve body is held between the first valve housing and the second valve housing, and configures a first region and a second region.

A micro-valve includes an orifice plate having a first surface, a second surface and an orifice extending from the first surface to the second surface. An actuating beam is disposed in spaced relation to the orifice plate. The actuating beam includes a base portion and a cantilevered portion. The base portion is separated from the orifice plate by a predetermined distance. The cantilevered portion extends from the base portion such that an overlapping portion thereof overlaps the orifice. The actuating beam is movable between a closed position and an open position. The micro-valve also includes a sealing structure including a sealing member disposed at the overlapping portion of the cantilevered portion. When the actuating beam is in the closed position, the cantilevered portion is positioned such that the sealing structure seals the orifice so as to close the micro-valve.

A valve includes a housing, a membrane, and a hole. The housing includes a flat plate having a hole connectable to an external pump, a housing component having a hole connectable to a component to which a fluid is discharged, and a valve chamber held between a housing component including the flat plate and the housing component. The membrane divides a valve chamber into a space facing the flat plate and a space facing the housing component. The hole is connected to the space facing the flat plate and the space facing the housing component. The housing component has a hole that is connectable to an outside of the housing and that allows the fluid to flow out from the valve chamber.

A pilot valve includes a housing, a motor secured in the housing and including a rotating output shaft, and a rocker disposed in the housing and coupled with the motor via a cam mechanism. The rocker is pivotable between a CLOSED position and an OPEN position by operation of the motor. The rocker includes a left-side boss and a right-side boss that are positioned in a path of the cam mechanism, where the left- and right-side bosses serve as cam stops in the CLOSED and OPEN positions, respectively. The housing may include features to better secure the motor, and the assembly may be configured to prevent unintended changes of state during periods of nonuse.

A valve includes a lower valve housing, a diaphragm, and an upper valve housing. A top surface of a piezoelectric pump is bonded to a bottom surface of the lower valve housing. A circular hole portion is provided in a central portion of a region of the diaphragm that opposes a projecting portion of the lower valve housing. The diaphragm is bonded to the upper valve housing and the lower valve housing, and a divided interior of a valve housing configures a first lower valve chamber, a second lower valve chamber, a first upper valve chamber, and a second upper valve chamber. A groove is located in a wall portion of the upper valve housing that opposes the diaphragm in the first upper valve chamber.