31results about "Inlet pressure control" patented technology

An outlet assembly for hybrid pressure and flow regulation includes a first orifice of a first size, a second orifice of a second size that is larger than the first size, and a mechanism that automatically moves the first orifice between a first position, a second position, and a third position. When the first orifice is in the first position, the flow of gas passes through the first orifice, which regulates a flow rate of the flow of gas through the second orifice. When the first orifice is in the second position, the flow of gas primarily bypasses the first orifice and flows through the second orifice with a first specific flow rate. When the first orifice is in the third position, the flow of gas primarily bypasses the first orifice and flows through the second orifice with a second specific flow rate.

Method for providing controlling parameters for controlling a vacuum valve (10) to control the pressure in a process chamber (1) by means of the vacuum valve (10), wherein the method comprises performing a valve calibration step by providing a calibration chamber having an upstream gas inlet and the vacuum valve to control a downstream gas outlet flow, providing defined gas flow into the calibration chamber, running a valve calibrating cycle with defined variation of a valve position of a valve closure of the vacuum valve, measuring a chamber pressure in the calibration chamber, modelling a controlling behavior for the vacuum valve based on the measured chamber pressure and the related variation of the valve position and deriving respective calibration controlling parameters for the vacuum valve based on the controlling behavior. The method comprises performing a process calibration step by providing a process chamber comprising at least an upstream gas inlet and the vacuum valve to control a downstream gas outlet flow, measuring an actual pressure in the process chamber, performing a pre-process step with the process chamber (1) with given process target pressure and given process timing, controlling the actual pressure in the process chamber by means of the vacuum valve to provide the process target pressure with the process timing and deriving process controlling parameters based on the controlling. Further, the process controlling parameters and / or the calibration controlling parameters are provided to control a process cycle.

A system for regulating an axial biasing force applied to a stacked set of packing elements mounted within stationary equipment, comprising a packing loading assembly for sealing a process fluid within the stationary equipment and for applying the axial biasing force to the packing elements via a pressurized fluid from a pressure regulator. The packing loading assembly includes a gland element for mounting to the stationary equipment by a plurality of gland bolts, and an external actuation subsystem for coupling to at least one of the plurality of gland bolts for applying an axial actuation force directly to the gland element in response to the pressurized fluid. The gland element in response to the axial actuation force applies the axial biasing force to the packing elements.

Embodiments generally relate to a system for cooling computing devices using liquid immersion. An exemplary system includes a plurality of open cooling tanks, each cooling tank defining an interior volume for receiving a computing device and for receiving a non-conductive liquid coolant, a coolant supply line including a supply header line and a plurality of supply branch lines, each supply branch line fluidly connecting the supply header line to a respective cooling tank, the supply header line having a diameter greater than the diameter of the supply branch line, and a coolant return line including the return header line and the plurality of return branch lines. a refrigerant return line, each return branch line fluidly connecting the return header line to a respective cooling tank, the return header line having a diameter greater than the diameter of the return branch line; at least one heat exchanger; and a pump system fluidly connected to the at least one heat exchanger, the supply header line, and the return header line, for causing liquid refrigerant to flow in a closed circuit via the supply and return branch lines, through the at least one heat exchanger, and through each tank simultaneously.

A pressure regulating valve includes a body having a pressure regulating chamber into which a working liquid flows and an attachment hole fluidly coupling with the pressure regulating chamber, a valve seat assembly fitted in the attachment hole, wherein the valve seat assembly includes a surplus liquid discharge path fluidly coupled with the pressure regulating chamber, a piston configured to open and close an opening of the surplus liquid discharge path in the pressure regulating chamber, a valve seat seal forming a seal between the valve seat assembly and the body in the attachment hole in a liquid-tight manner and a return flow path fluidly coupling an inside of the attachment hole to the surplus liquid discharge path. Wherein the valve seat seal is located between the return flow path and the pressure regulating chamber.

A pressure stabilising valve (100) is described, comprising: an inlet chamber (120), an outlet chamber (125), a cylindrical hole (130) adapted to make the inlet chamber (120) communicate with the outlet chamber (125), a shutter element (135) provided with a stem (140) coaxially fitted into the cylindrical hole (130), a spring (210) adapted to push the shutter element (135) towards a first end-of-stroke position, wherein the stem (140) defines with the cylindrical hole (130) a passage port which leaves open the communication between the inlet chamber (120) and the outlet chamber (125), and a pushing surface (185) radially protruding with respect to the stem (140) and adapted to at least partially delimit the inlet chamber (120), which is adapted to transform the pressure prevailing in the inlet chamber (120) into a force that pushes the shutter element (135) in contrast with the action of the spring (210) towards a second end-of-stroke position, progressively increasing the passage port between the stem (140) and the cylindrical hole (130).

A cooling tank for cooling a computing device using liquid immersion is disclosed, the cooling tank comprising: a container configured to receive a coolant in a cavity of the container; a separation panel dividing the container cavity into a cooling space and a return space; a perforated panel connected to the container and the separation panel to divide an inlet space from the cooling space; a racking system configured to support a computing device within the cooling space; a coolant inlet conduit configured to discharge the coolant into the inlet space; and a coolant outlet conduit disposed within the return space, wherein perforations defined in the perforated panel allow passage of the coolant from the inlet space to the cooling space for cooling the computing device within the cooling space, and wherein a top portion of the separation panel is disposed farther from the bottom panel than an inlet of the coolant outlet conduit.

The cooling system (100) includes a plurality of cooling tanks (101), each of the cooling tanks (101) configured to contain a liquid coolant; a set of connecting pipes (106) configured to fluidly connect the plurality of cooling tanks (101); a set of inlet pipes (102) fluidly connected to the plurality of cooling tanks (101) to supply liquid coolant into the plurality of cooling tanks (101); a set of outlet pipes (103) fluidly connected to the plurality of cooling tanks (101) to discharge liquid coolant carrying heat absorbed from the computing device (520) out of the plurality of cooling tanks (101); a heat exchanger (104) fluidly connected to each of the set of inlet pipes (102) and each of the set of outlet pipes (103); and a coolant pump (105) fluidly connected to each of the set of outlet pipes (103).

An inner component assembly for a regulator can include a cage and a plug assembly. The cage can include a peripheral wall defining an opening and a plurality of cage holes formed in the peripheral wall. The plug assembly can include a plug and a sealing element and can be configured to be movably received within the opening such that the sealing element selectively contacts an inner surface of the cage to vary a flow area through the plurality of cage holes depending on a position of the plug.

Disclosed is a signaling beacon that includes an infrared or thermal energy emission system using fluid such as water for use in infrared signaling without the need for more complicated electronic systems. The beacon includes a pump coupled to a porous media emission structure that selectively allows fluid in and out of the. The apparatus features a porous structure that generate one or more fluid structures such as droplets or other fluid shapes that effectively increase or decrease fluid surface area on the fluid emission structure and thereby increase or decrease energy emissions in relation to the fluid emission structure. The control system can selectively modulate pressure / fluid transfer via the fluid pump to alter energy emission according to a modulation pattern that can be detected at a distance and recognized as a known signal.

Method for providing controlling parameters for controlling a vacuum valve (10) to control the pressure in a process chamber (1) by means of the vacuum valve (10), wherein the method comprises performing a valve calibration step by providing a calibration chamber having an upstream gas inlet and the vacuum valve to control a downstream gas outlet flow, providing defined gas flow into the calibration chamber, running a valve calibrating cycle with defined variation of a valve position of a valve closure of the vacuum valve, measuring a chamber pressure in the calibration chamber, modelling a controlling behavior for the vacuum valve based on the measured chamber pressure and the related variation of the valve position and deriving respective calibration controlling parameters for the vacuum valve based on the controlling behavior. The method comprises performing a process calibration step by providing a process chamber comprising at least an upstream gas inlet and the vacuum valve to control a downstream gas outlet flow, measuring an actual pressure in the process chamber, performing a pre-process step with the process chamber (1) with given process target pressure and given process timing, controlling the actual pressure in the process chamber by means of the vacuum valve to provide the process target pressure with the process timing and deriving process controlling parameters based on the controlling. Further, the process controlling parameters and / or the calibration controlling parameters are provided to control a process cycle.

A pressure regulating valve includes a body forming a pressure regulating chamber for regulating a pressure of a working liquid, an attachment hole provided in the body and fluidly coupled with the pressure regulating chamber, a valve seat assembly fitted in the attachment hole and forming a surplus liquid discharge path for discharging the working liquid in the pressure regulating chamber, a piston partially positioned inside the pressure regulating chamber, and a valve seat seal located in the attachment hole and positioned between the body and the valve seat assembly. The valve seat assembly includes a return flow path opening provided in an outer peripheral surface of the valve seat assembly at a position facing an inner peripheral surface of the attachment hole, and a return flow path fluidly coupling the return flow path opening and the surplus liquid discharge path.

A coolant system is arranged to be driven by a prime mover of an aircraft. The coolant system comprises a fluid circuit with a fluid therein, the fluid for cooling an electricity generator located in the fluid circuit. The fluid circuit comprises: a cooling path passing via at least one cooled component of the generator; a first fluid flow source configured to deliver a first fluid flow to the cooling path; a second fluid flow source configured to generate a second fluid flow; and a valve arrangement configured to selectively direct at least a proportion of the second fluid flow away from the cooling path in dependence on a measured operational parameter of the generator. An aircraft propulsion system and an aircraft can also include the coolant system.

A back pressure regulator includes: a body including: a process surface including at least one inlet orifice and a plurality of outlet orifices; an inlet port communicating with an exterior of the body and with the at least one inlet orifice; an outlet port communicating with the exterior of the body and with the outlet orifices; a reference housing defining a reference cavity; a diaphragm secured between the body and the reference housing such that the diaphragm contacts the process surface, the diaphragm movable between a closed position and an open position; a transfer assembly disposed in the reference cavity, positioned against the reference side of the diaphragm; and an actuator configured to apply a force against the transfer assembly, in response to an electrical input.

A time-variant gas-flow parameter ({P}|13) is applied to a pressure-control device (163) in a gas-collecting main (183) of an offtake piping system (143, 143', 183) of at least one stamp-charging coke-oven (103) that is adapted to process a coal-cake (113). The parameter ({P}| 3) is a parameter value sequence (503) that is provided by a computer (203) with a pre-trained neural network (253). The computer (203) receives a set (303) of input parameters ({X}|3), with a modality parameter set ({X0}) that represents a charging modality by that the coal-cake (113) is to be inserted into the stamp-charging coke-oven (103), and a coal-cake property parameter set ({X1}) that represents a property of the coal-cake (113) before insertion. The neural network (253) has been trained with historical data-sets of input parameters from reference operations and with historical sequences of time-variant gas-flow parameters as the ground-truth.

The gas regulator includes a valve chamber body that houses the regulator's two valves. A valve element that moves to open and close the two valves is received in the valve chamber body through the same opening, and the valve chamber body is closed by a plug. The plug can define a first valve seat and a piercing element used to pierce the compressed gas cylinder. A retainer can hold a gasket to the valve seat as well as provide a bore or other support for the valve element and valve element spring.

To achieve high cleanliness and discharge accuracy with the smaller number of components even when using a chemical solution with high viscosity.SOLUTION: A treatment liquid supply system according to an embodiment of the present disclosure, comprises: a tank that accumulates treatment liquid supplied from a treatment liquid supply part; a circulation passage connected to the tank; a plurality of supply passages that is connected to the circulation passage, and supplies each treatment liquid to a plurality of liquid treatment parts that performs a liquid treatment on a substrate; a set of first pump filters that is a combination of the first pump and a plurality of first filters provided on downstream side thereof; and a set of second pump filters that is a combination of the second pump and a plurality of second filters provided on downstream side thereof. The set of first pump filters and the set of second pump filters are arranged in series on the circulation passage so that the set of first pump filters is positioned on an upstream side of the set of second pump filters.SELECTED DRAWING: Figure 1

Control methods for generating Venturi vacuum in a substantially oscillation-free manner for surgical systems are disclosed. The control methods generally include utilizing real-time readings from a Venturi vacuum generator inlet pressure sensor and a vacuum pressure sensor on the vacuum side of the Venturi vacuum generator. These values can be used in real-time to ascertain the occurrence of an oscillation region on the vacuum side, which can then be addressed by bleeding control proportional valves. When used in conjunction with a throttle control proportional valve on the inlet side of the Venturi vacuum generator, pressure can be manipulated relative to each other and / or individually by the direction of a central controller. Thus, surgical procedures can be avoided in which oscillations are presented on the vacuum side to provide more stable vacuum support.

A pressure regulation device 1 controlling a fluid pressure has a housing, a fluid reservoir and a controller. The housing has fluid passage 23 for a fluid, the pressure of which is to be controlled,

A fluid handling protection system configured to prevent cavitation in a first pump can include a first pump, a first pump fluid inlet line, a first pump fluid outlet line, a first pump drive unit, wherein the first pump drive unit is operatively coupled to the first pump, a first pressure sensor, and a control unit, wherein the control unit is operatively coupled to the first sensor and the first pump drive unit.

A processing liquid supply system includes a tank that stores a processing liquid supplied from a processing liquid supply, a circulation passage that is connected to the tank, a plurality of supply passages that is connected to the circulation passage and supplies the processing liquid to each of a plurality of liquid processing units that perform a liquid processing on a substrate, a first pump filter set that is a combination of a first pump and a plurality of first filters provided downstream of the first pump, and a second pump filter set that is a combination of a second pump and a plurality of second filters provided downstream of the second pump. The first pump filter set and the second pump filter set are arranged in series in the circulation passage such that the first pump filter set is located upstream of the second pump filter set.

A system for monitoring an axial biasing force applied to a packing assembly having a packing loading assembly for sealing a process fluid within stationary equipment and for applying the axial biasing force to the packing assembly via a pressurized fluid from a fluid source. The packing loading assembly has a gland element for coupling to the stationary equipment and an external actuation subsystem for applying an axial actuation force directly to the gland element in response to the pressurized fluid. The gland element in response to the axial actuation force applies the axial biasing force to the packing assembly. The external actuation subsystem has a stationary component and a movable component coupled to the gland element. The system also includes a sensor assembly having a position sensor coupled to the external actuation subsystem for monitoring movement of the movable component relative to the stationary component.

The present invention relates to an outlet assembly for mixed pressure and flow regulation, comprising a first orifice of a first size, a second orifice of a second size larger than the first size, and a mechanism to automatically move the first orifice between a first position, a second position, and a third position. When the first orifice is in the first position, gas flow passes through the first orifice, which regulates the flow rate of the gas flow through the second orifice. When the first orifice is in the second position, gas flow primarily bypasses the first orifice and flows through the second orifice at a first specific flow rate. When the first orifice is in the third position, gas flow primarily bypasses the first orifice and flows through the second orifice at a second specific flow rate.

Pressure regulators with adjustable boost bodies are described herein. An example pressure regulator includes a valve body; a seat in the fluid passageway; an actuator casing coupled to the valve body; and a plug assembly including: a stem; a plug coupled to the stem; a stem guide disposed in the channel of the actuator casing; a boost body on the second side of the stem guide; and a tube extending through the boost body, the tube having a first end and a second end, the first end aligned with a passage in the stem guide and the second end disposed in a downstream location relative to the seat such that the pressure sense chamber is in fluid communication with the downstream location, wherein the boost body is rotatable with respect to the stem guide to position the tube in at least one other orientation relative to the actuator casing.

Described embodiments generally relate to a cooling system for cooling computing devices. The cooling system comprises at least one cooling tank configured to hold a first cooling fluid and sized to at least partially immerse at least one computing device in the first cooling fluid in order for the first cooling fluid to absorb heat generated from the at least one computing device; at least one inlet pipe fluidly connected to the cooling tank to supply the cooling fluid into the cooling tank; at least one outlet pipe fluidly connected to the cooling tank to release the first cooling fluid carrying the heat absorbed from the computing device out of the cooling tank; a heat dissipation system fluidly connected to the inlet pipe to supply the first cooling fluid and fluidly connected to the outlet pipe to receive the first cooling fluid carrying the heat absorbed from the computing devices, the heat dissipation system being configured to dissipate the heat from the first cooling fluid; a pump configured to facilitate circulation of the first cooling fluid through the tank, the inlet pipe, the outlet pipe, and the heat dissipation system; and a control device.

Embodiments generally relate to systems for cooling computing devices using liquid immersion. An example system includes: a plurality of open cooling tanks, each cooling tank defining an interior volume to receive computing devices and to receive a non-conductive liquid coolant; coolant supply conduits, including a supply header conduit and a plurality of supply branch conduits, each of the supply branch conduits fluidly coupling the supply header conduit to a respective cooling tank, wherein a diameter of the supply header conduit is larger than a diameter of the supply branch conduits; coolant return conduits, including a return header conduit and a plurality of return branch conduits, each of the return branch conduits fluidly coupling the return header conduit to a respective cooling tank, wherein a diameter of the return header conduit is larger than a diameter of the return branch conduits; at least one heat exchanger; and a pump system fluidly coupled to the at least one heat exchanger, the supply header conduit and the return header conduit to cause liquid coolant to flow in a closed circuit through the at least one heat exchanger and through each of the tanks simultaneously via the supply branch conduits and the return branch conduits.

A back pressure regulator (“BPR”) includes a pressure housing that at least partially defines a flow chamber that the liquid flows through and the BPR has an adjustable restriction that varies with the flow rate to maintain an upstream liquid pressure. The pressure housing is contoured to distribute the liquid flow to provide radial flow into the adjustable restriction from circumferentially about the adjustable restriction. The pressure housing includes ramped and curved side passages that guide the flow and ridges that divide the flow and prevent internal collisions between the flow. A flow deflector extends into the chamber outlet to prevent the radial flows through the annular restriction from colliding. The flow deflector redirects the flows to smoothly recombine in the chamber outlet.

A backpressure regulator ("BPR") includes a pressure housing that at least partially defines a flow chamber through which liquid flows, and the BPR has an adjustable restriction that varies as a function of flow to maintain upstream liquid pressure. The pressure housing is contoured to distribute the flow of liquid to provide a radial flow from a circumferential periphery of the adjustable restriction into the adjustable restriction. The pressure housing includes inclined and curved side channels that direct the flows, and ridges that separate the flows and prevent internal collisions between the flows. The flow guide extends into the chamber outlet to prevent impingement of radial flow through the annular restriction. A flow guide redirects the flow to smoothly recombine in the chamber outlet.

A pressure regulating valve (100) includes a body (1) forming a pressure regulating chamber (10), a valve seat unit (2) forming a surplus liquid discharge path (L) for discharging a working liquid in the pressure regulating chamber (10), and a piston valve body (3) configured to open and close an opening (La). A valve seat seal (8) sealing between the body (1) and the valve seat unit (2) in a liquid-tight manner is provided between them. A return flow path opening (L10a) provided in an outer peripheral surface of the valve seat unit (2) and a return flow path (L10) connecting the return flow path opening (L10a) and the surplus liquid discharge path (L) are formed in the valve seat unit (2). The valve seat seal (8) is disposed between the return flow path opening (L10a) and the pressure regulating chamber (10).

A back pressure regulator ("BPR") includes a pressure housing at least partially defining a flow chamber through which a liquid flows, and the BPR has an adjustable restriction that varies with flow to maintain an upstream liquid pressure. The pressure housing is contoured to distribute the liquid flow to provide radial flow into the adjustable restriction from a circumferential perimeter of the adjustable restriction. The pressure housing includes angled and curved side channels that direct the flow, and ridges that separate the flow and prevent internal collisions between the flows. A flow director extends into the chamber outlet to prevent collisions of the radial flows through the annular restriction. The flow director reorients the flows to smoothly recombine in the chamber outlet.