Abstract: A surgery visualization system is described herein. The surgery visualization system includes a display monitor positioned in view of a surgeon and a support arm system including a first support arm and a second support arm. The first and second support arms are orientated such that the display monitor is visible to the surgeon between the first and second support arms. A 3D digital viewport coupled to the first support arm. A 3D digital microscope coupled to the second support arm. A computer system including a processor programmed to receive and process images from the 3D digital microscope and display the processed images on the 3D digital viewport and the display monitor.

Abstract: A control system is disclosed having at least one spray head, a fluid pump, and a power converter driving the fluid pump. The control system may also have an interface device to receive at least one parameter associated with a desired fluid delivery event, a pressure sensor configured to generate a first signal, a travel speed sensor configured to generate a second signal, and a controller. The controller may be configured to determine a desired fluid pressure based on the at least one parameter, and determine a control command for the power converter based on the desired fluid pressure. The controller may be further configured to determine a feedforward gain parameter based on the at least one parameter and the second signal, determine a feedback gain parameter based on a difference between desired and actual fluid pressures, and adjust the control command based on the feedforward and feedback gain parameters.

Abstract: A liquid delivery system includes an engine and a hydraulic circuit, which includes a hydraulic pump driven by the engine and a hydraulic motor driven by the hydraulic pump. A liquid pump is driven by the hydraulic motor and is configured to provide pressurized liquid along a liquid conduit. A variable orifice spray head is configured to receive the pressurized liquid from the liquid conduit and deliver the pressurized liquid through an opening of the variable orifice spray head. An actuation mechanism is configured to change a size of the opening of the variable orifice spray head responsive to command signals. An electronic control module has a spray head calibration algorithm executable thereon that identifies a correlation, which is stored in memory, between a variable orifice spray head command signal and a target variable orifice spray head opening size based on a hydraulic pressure along the hydraulic circuit.

Abstract: A control system is disclosed having at least one spray head, a fluid pump, and a power converter driving the fluid pump. The control system may also have an interface device to receive at least one parameter associated with a desired fluid delivery event, a pressure sensor configured to generate a first signal, a travel speed sensor configured to generate a second signal, and a controller. The controller may be configured to determine a desired fluid pressure based on the at least one parameter, and determine a control command for the power converter based on the desired fluid pressure. The controller may be further configured to determine a feedforward gain parameter based on the at least one parameter and the second signal, determine a feedback gain parameter based on a difference between desired and actual fluid pressures, and adjust the control command based on the feedforward and feedback gain parameters.

Abstract: A power and data delivery system for a machine. The system includes a power and data conductor located throughout at least a portion of the machine, a plurality of processing nodes, each connected to the conductor at various locations, and a plurality of devices, each connected to a corresponding one of the plurality of processing nodes and controlled by the processing node, wherein each processing node may be connected at any location of the conductor.

Abstract: A power and data delivery system for a machine. The system includes a conductor located throughout at least a portion of the machine for delivering power, a plurality of nodes, each connected to the conductor at a respective location, and a plurality of devices, each connected to a corresponding node. At least one node controls the delivery of power and data by way of a message containing a unique identifier for that one node.

Abstract: A flow control valve, comprising a flow controlling valve configured to deflect from a generally planar posture to an increasingly nonplanar posture responsive to a relative increase in pressure difference and flow across the valve element; and a support element including a support structure supporting the valve element in its undeflected state; at least a first contact surface recessed from the support structure and configured to engage the valve element only when the valve element is deflected; and a flow passage wherein an effective flow-through volume through the at least one opening and the flow passage decreases as deflection of the valve element increases.

Abstract: A flow control valve, comprising a flow controlling valve configured to deflect from a generally planar posture to an increasingly nonplanar posture responsive to a relative increase in pressure difference and flow across the valve element; and a support element including a support structure supporting the valve element in its undeflected state; at least a first contact surface recessed from the support structure and configured to engage the valve element only when the valve element is deflected; and a flow passage wherein an effective flow-through volume through the at least one opening and the flow passage decreases as deflection of the valve element increases.

Abstract: A flow control valve is provided. According to one aspect of this disclosure, the flow control valve includes a valve element and a support element. The valve element is configured to deflect responsive to a change in pressure difference across the valve element. The support element cooperates with the valve element to present an effective flow-through area that changes as the valve element deflects. The amount of relative engagement between the valve element and the support element changes as the valve element deflects. External vibration causes the valve element to vibrate to reduce stiction or ice buildup.