A vacuum exhaust system includes a plurality of low pressure vacuum pumps that operate in a molecular flow region and evacuate a plurality of vacuum chambers. A plurality of chamber valves are positioned between the low pressure vacuum pumps and the plurality of vacuum chambers. A plurality of branch channels are each connected to a corresponding exhaust of the plurality of low pressure vacuum pumps and a main channel is formed from a confluence of the branch channels. An intermediate vacuum pump is connected to the main channel and operates in a viscous flow region. A higher pressure vacuum pump operates in a higher pressure viscous flow region and is connected to an exhaust of the intermediate pressure vacuum pump. A plurality of bypass channels, each having a valve, provide a fluid communication path between at least some of the plurality of vacuum chambers and a higher pressure vacuum pump.

A well operation facility including a first pump for delivering mud and cement to a borehole, a second pump for delivering mud to the borehole; a third pump for delivering the mud to the borehole, an inlet manifold coupled to each of the pumps for delivering the mud and/or cement to the pumps, and a discharge manifold coupled to each of the pumps for delivering the mud and/or cement at a pressure. In some embodiments, the first pump, the second pump, and the third pump are configured to be isolated from each other and to be used in series, parallel or as backups to each other.

An assembly line grow pod includes a plurality of fluid lines fluidly coupled between a fluid source and a fluid destination within the assembly line grow pod, a plurality of valves, each coupled to a fluid line such that fluid movement through the fluid lines is selectively controlled by the valves, and a master controller communicatively coupled to the valves. The master controller is programmed to receive information relating to fluid delivery within the assembly line grow pod, determine one or more valves to direct the fluid, determine valve parameters for each of the valves that achieve the fluid direction, and transmit one or more control signals to the valves for directing the fluid within the assembly line grow pod.

An assembly line grow pod includes a plurality of fluid lines fluidly coupled between a fluid source and a fluid destination within the assembly line grow pod, a plurality of valves, each coupled to a fluid line such that fluid movement through the fluid lines is selectively controlled by the valves, and a master controller communicatively coupled to the valves. The master controller is programmed to receive information relating to fluid delivery within the assembly line grow pod, determine one or more valves to direct the fluid, determine valve parameters for each of the valves that achieve the fluid direction, and transmit one or more control signals to the valves for directing the fluid within the assembly line grow pod.

A method for controlling and/or monitoring a compressor system is provided. The compressor system includes one or more compressors and one or more peripheral devices. The compressors and peripheral devices are arranged or connected in a predetermined configuration. The compressor system is controlled and/or monitored by a control/monitoring unit. The method involves creating one or more derived models on the basis of one or more initial models of the compressor system that are based on a P&I diagram. The derived models take into account the operative interrelationships among the individual compressors and peripheral devices, and optionally also dynamic processes. The one or more derived models form the basis for subsequent control, monitoring, diagnosis or evaluation routines.

A hydrostatic positive displacement machine has an adjustable swept volume, and has a lifting element, a rotor with positive displacement elements supported on the lifting element, and a hydraulic adjusting device that adjusts the swept volume and includes an adjusting piston that is mounted in or on a cylinder, is movable axially rectilinearly in relation to the cylinder, and is adjacent to a pressurizable adjusting chamber. A bearing gap is formed between a circular-cylindrical bearing surface of the adjusting piston and a circular-cylindrical bearing surface of the cylinder. The adjusting piston is mounted hydrostatically, wherein at least three pressure pockets are distributed uniformly in a row over the circumference of a bearing surface. Pressure fluid flows into each pressure pocket via a fixed throttle, which is assigned only to the respective pressure pocket, and flows out of each pressure pocket via the bearing gap.

A method can include operating a pump system; determining a condition associated with the pump system; and controlling the pump system based at least in part on the condition.

A method can include operating a pump system; determining a condition associated with the pump system; and controlling the pump system based at least in part on the condition.

A method for operating a double-action piston pump of an application system for applying a fluid medium to a substrate, wherein the piston pump has a piston which is movable between a first reversal point and a second reversal point for delivering the fluid medium, wherein on reaching the first reversal point and the second reversal point, the movement direction of the piston is reversed, wherein during an output period, the fluid medium is output by means of an output device, and during an interruption period, an output of the fluid medium by means of the output device is interrupted, wherein during the interruption period, the movement direction of the piston is reversed, wherein on reversal of the movement direction during the interruption period, the piston is situated at an intermediate position between the first reversal point and the second reversal point.

A method for controlling a compressor system comprising a plurality of compressors, wherein the compressor system is intended to maintain a predefined excess pressure in a pressurized fluid system, wherein decisions are met at fixed or variable intervals as to switching operations for adapting the system to current conditions, wherein—in a pre-selecting step, switching alternatives are excluded from the plurality of combinatorially available switching alternatives, —in a main selecting step, remaining switching alternatives are weighed against one another while referring to one or more optimization criterion (criteria) and optimum switching alternatives are selected from among the given criteria, and—in a control step, the selected switching alternative is output for implementation in the compressor system.