A mixing apparatus including a mixing region can have an inlet and an outlet. The mixing region can be operable to couple with a solution housing, thereby defining a mixing chamber. A stem can extend from a surface of the mixing region and the inlet can be disposed at a distal end of the stem. A wing can disposed at a proximal end of the stem and adjacently engaged with the surface of the mixing region and have a leading edge and a trailing edge.

A mixing apparatus including a mixing region can have an inlet and an outlet. The mixing region can be operable to couple with a solution housing, thereby defining a mixing chamber. A stem can extend from a surface of the mixing region and the inlet can be disposed at a distal end of the stem. A wing can disposed at a proximal end of the stem and adjacently engaged with the surface of the mixing region and have a leading edge and a trailing edge.

Example apparatus for regulator heat transfer are disclosed. An example apparatus includes a regulator including a body, a stem disposed therein, a first inlet and a first outlet. The regulator regulates a pressure of a fluid flowing from the first inlet to the first outlet. The example apparatus comprises a vortex generator disposed within the body to convey heat to a valve of the regulator. The stem controls the regulator and the vortex generator.

Example apparatus for regulator heat transfer are disclosed. An example apparatus includes a housing including an inlet, an outlet, a first valve, and a stem disposed therein. The example apparatus includes a vortex generator disposed in the housing. A fluid is to flow from the inlet through the vortex generator. The example apparatus includes a second valve disposed in the vortex generator. In the example apparatus, the vortex generator is to generate heat prior to the fluid flowing through the second valve to the outlet. The stem is to control the first valve and the second valve to regulate an amount of the heat conveyed to the first valve.

A method of configuring a vortex flow control device 2 comprising a vortex chamber 4, an inlet 6 and an outlet 8 arranged at one end of the vortex chamber 4, wherein the method comprises the steps of: setting a target maximum flow rate F.sub.T-MAX through the outlet 8 for a predetermined pressure P.sub.T-MAX at the inlet; setting a target vortex initiation flow rate F.sub.T-VI through the outlet 8 at which vortex flow within the vortex chamber 4 initiates; determining the actual maximum flow rate F.sub.A-MAX through the outlet 8 for the predetermined pressure P.sub.T-MAX at the inlet 6; determining the actual vortex initiation flow rate F.sub.A-VI through the outlet 8; determining an error parameter E based on at least one of the actual maximum flow rate F.sub.A-MAX and the actual vortex initiation flow rate F.sub.A-VI and at least one of the target maximum flow rate F.sub.T-MAX and the target vortex initiation flow rate F.sub.T-VI; comparing the error parameter E against a target condition C.sub.T; and, if the error parameter E fails to satisfy the target condition C.sub.T, modifying at least one characteristic of the vortex flow control device 2 so as to vary at least one of the actual maximum flow rate F.sub.A-MAX and the actual vortex initiation flow rate F.sub.A-VI so that the modified vortex flow control configuration produces a hydraulic response that more closely satisfies the target condition C.sub.T.

To convey tactile sensations over an open space, a system may use a vortex generator to direct one or more vortices at an object in 3-D space. Once a vortex strikes an objecte.g., a user's handit applies a force. The vortex generator can control the frequency and intensity of the vortices in order to provide different tactile sensations that correspond to virtual objects or events in a visual presentation. The system may identify and track objects in the real-world environment, and based on information provided by a device displaying the visual presentation, transmit instructions to the vortex generator to discharge vortices that convey a tactile sensation corresponding to the virtual object or event in the visual presentation. By doing so, the vortices augment the real-world environment to immerse the user in the visual presentation.

A solenoid valve includes a housing, a valve actuation device, and a closing element, wherein the housing includes an interior space with a central axis, wherein the valve actuation device includes an actuator arranged in the interior space so as to be displaceable along the central axis, wherein the actuator is operatively connected to the closing element such that the solenoid valve is opened or closed by a displacement of the actuator along the central axis, wherein the actuator together with the housing delimit, in the interior space of the housing, a leakage chamber that can be filled with a fluid, e.g., a fuel, and wherein in the leakage chamber, at least one vortex generator is arranged on the housing and/or on the actuator, which vortex generator is configured to generate a fluid vortex in the leakage chamber.

A vortex-controlled variable flow resistance device ideal for use in a backpressure tool for advancing drill string in extended reach downhole operations. The characteristics of the pressure waves generated by the device are controlled by the growth and decay of vortices in the vortex chamber(s) of a flow path. The flow path includes a switch, such as a bi-stable fluidic switch, for reversing the direction of the flow in the vortex chamber. The flow path may include multiple vortex chambers, and the device may include multiple flow paths. A hardened insert in the outlet of the vortex chamber resists erosion. This device generates backpressures of short duration and slower frequencies approaching the resonant frequency of the drill string, which maximizes axial motion in the drill sting and weight on the bit. Additionally, fluid pulses produced by the tool enhance debris removal ahead of the bit.

A surgical instrument is disclosed that includes a tube, a waveguide extending through the tube, an end effector comprising an ultrasonic blade extending from the waveguide and a clamp arm pivotable relative to the ultrasonic blade between an open position and a closed position, and a pin configured to couple the clamp arm directly to the ultrasonic blade.