A rotary multi-port valve having a valve body defining a valve chamber and having a plurality of inlet flow ports each having a stationary seat member therein and having a discharge port. A flow diverter member is supported by a valve stem and a tubular trunnion for rotation within the valve chamber and has a diverter chamber. A piston is hydraulically moveable within the diverter chamber and has driving connection with a diverter valve member is linearly moveable for sealing engagement with a selected stationary seat member. The diverter valve member is selectively retracted to a position completely within the valve chamber to permit selective rotation of the flow diverter member within the valve body to an aligned position with any of the inlet ports of the valve body.

A diverter valve assembly includes a diverter valve. The diverter valve includes a housing having an inlet, multiple destination outlets, and a subsequent diverter valve outlet. The diverter valve also includes a rotary element disposed within the housing. The rotary element has an inlet, one or more target destination outlets, and a subsequent diverter valve outlet. Furthermore, the inlet of the rotary element is fluidly coupled to the inlet of the housing, the subsequent diverter valve outlet of the rotary element is fluidly coupled to the subsequent diverter valve outlet of the housing, and the rotary element is configured to rotate to selectively fluidly couple the one or more target destination outlets of the rotary element to one or more respective destination outlets of the housing.

A dual fuel heating system can be used in a gas appliance. A dual fuel heating system can have a fuel selector valve for selecting between a first fuel and a second fuel different from the first. The dual fuel heating system can include a regulator unit configured to regulate the pressure of the two different fuels. The selector valve determines which flow path for which fuel is open and which is closed.

A rotary multi-port valve having a valve body defining a valve chamber and having a plurality of inlet flow ports each having a stationary seat member therein and having a discharge port. A flow diverter member is supported by a valve stem and a tubular trunnion for rotation within the valve chamber and has a diverter chamber. A piston is hydraulically moveable within the diverter chamber and has driving connection with a diverter valve member is linearly moveable for sealing engagement with a selected stationary seat member. The diverter valve member is selectively retracted to a position completely within the valve chamber to permit selective rotation of the flow diverter member within the valve body to an aligned position with any of the inlet ports of the valve body.

The improved servovalve broadly (20) includes: a body (21) having an axis of elongation (y-y), a portion of the body defining a cylinder (43) having an axis (x-x) substantially perpendicular to the body axis; a valve member (44) movably mounted in the cylinder, and adapted to be moved off-null in either direction along the cylinder axis to selectively meter the flows of fluid between a plurality of ports defined between the spool and cylinder; a rotor (58) mounted on the body for rotation about the body axis; a motor (69) acting between the body and rotor, and selectively operable to cause the rotor to rotate in a desired angular direction relative to the body; and a quill-like transfer member (64) acting between the rotor and valve spool.

A valve for an adsorption heat pump may include a first channel, a second channel, a third channel, a first valve unit, and a second valve unit. The first valve unit may include a first valve body and a first valve seat and may be constructed and arranged to open and close the first channel. A second valve unit may include a second valve body and a second valve seat and may be constructed and arranged to open and close the second channel. A spring element may be pre-stressed between the first valve body and the second valve body and may be constructed and arranged to provide a first closing force upon the first valve body in a first direction of the first valve seat and a second closing force upon the second valve body in a second direction of the second valve seat. An actuating drive may include a control rod and may extend through the first valve body and the second valve body. A first carrier element and a second carrier element may each be secured to the control rod. The first valve body, the second valve body, and the spring element may be positioned between the first carrier element and the second carrier element. The valve may be constructed and arranged to move between a closed position, a first open position, a second open position, and at least one intermediate position. In the closed position, the first valve unit and the second valve unit may be closed. In the first open position, the first valve unit may be fully open. In the second open position, the second valve unit may be fully open. In the at least one intermediate position, one of the first valve unit or the second valve unit may be partially open. The actuating drive may be constructed and arranged to hold the valve in the closed position, the first open position, the second open position, and the at least one intermediate position without power. The actuating drive may include a stepping motor and a gear unit. The stepping motor and the gear unit may be constructed and arranged to hold the valve in the closed position, the first open position, the second open position, and the at least one intermediate position via a currentless holding moment. The first valve unit and the second valve unit may include a valve opening characteristic of a flow coefficient dependent on an adjustment path which may not be linear. The valve opening characteristic may include at least one flat region.

Systems, methods, and devices are described for providing a brace having an inflation control. The control directs fluid flow from an inflation component to one or more inflatable cells of the brace. The inflatable cells are independently inflated and deflated by the inflation component through the control. The control allows a user to create a fluid path between the inflation component and one of the inflatable cells by positioning the control in an orientation corresponding to the desired inflatable cells. Each inflatable cell is independently inflated and deflated in various orientations of the control.

The valve device has a valve main body defining a valve chest provided with a NO outlet port and a NC outlet port through which a fluid flows, and a valve for opening/closing the NC outlet port and NO outlet port. The valve includes a diaphragm disposed so as to cover the valve chest, and a drive means for pressing the diaphragm to open/close the NC outlet port and NO outlet port. The first valve seat and the second valve seat are formed around the NC outlet port and NO outlet port. The diaphragm is made of an elastic material of which JIS-K6253 durometer A hardness is A50-A85. The pressure of the diaphragm seated on the first valve seat and the second valve seat is 0.5-1.0 N/sq.Math.mm.

A washer fluid distribution device includes a plurality of nozzle units formed consecutively, a transfer conduit configured to pass through the plurality of nozzle units and having one end fluidly connected to an introduction part, the introduction part located at one end of the transfer conduit and configured to allow a washer fluid to be introduced from a washer pump, a plurality of discharge holes configured to correspond to the number of the nozzle units in the transfer conduit and having different angles based on a center of the transfer conduit, and a controller configured to control a rotation angle of the transfer conduit to allow the discharge holes to correspond to the nozzle units in response to a user's request.

In one aspect, a valve is provided. The valve includes a body having a first inlet, a second inlet and an outlet. The valve further includes a shuttle disposed in the body. The shuttle is movable within the body between a first position and a second position, wherein the first inlet is open and the second inlet is closed when the shuttle is in the first position, and wherein the first inlet is closed and the second inlet is open when the shuttle is in the second position. In addition, the valve includes a non-metallic seal assembly disposed adjacent each inlet. The seal assembly having a seal member with a V-shaped configuration. In another aspect, a method of moving a shuttle in a valve is provided. The method includes three stages of dampening which slows the velocity of the shuttle as it moves within a body of the valve toward an inlet.