413 results about "Plenum chamber" patented technology

A combustor includes a combustion liner that defines a combustion chamber and an outer sleeve spaced apart from the combustion liner, such that an annulus is defined between the combustion liner and the outer sleeve. The combustor further includes a fuel injection assembly having a boss coupled to at least one of the combustion liner and the outer sleeve. The boss includes an inner flange coupled to the combustion liner, an outer flange, and a body extending between the outer flange and the inner flange. The boss defines a cooling circuit having a post-impingement plenum defined in the inner flange between an inner wall of the inner flange and an impingement plate in cooling proximity to the inner wall; and a plurality of film cooling channels that are defined in the inner flange and fluidly couple the post-impingement plenum to the combustion chamber.

The present invention includes a spray drying disposable device for use in a spray drying system. The disposable has a spray drying head and a plasma drying chamber. The head has a spray dry nozzle assembly in fluid communication with the plasma source and the pressurized aerosol gas source. The pressurized gas flows in a vortex pattern that atomizes plasma droplets in the chamber. The head also includes a plenum has uniform air pressure of the drying gas. A baffle plate forms the floor of the plenum having drying gas jets that supply drying gas to the chamber. The atomized plasma droplets evaporate in the presence of the drying gas emitted from the jets to obtain dried plasma particles and humid air. A capture filter captures the dried plasma particles and allows the humid air to pass. The humid air passes through the gas outlet and the exhaust port.

The present invention includes a spray drying disposable device for use in a spray drying system. The disposable has a spray drying head and a plasma drying chamber. The head has a spray dry nozzle assembly in fluid communication with the plasma source and the pressurized aerosol gas source. The pressurized gas flows in a vortex pattern that atomizes plasma droplets in the chamber. The head also includes a plenum has uniform air pressure of the drying gas. A baffle plate forms the floor of the plenum having drying gas jets that supply drying gas to the chamber. The atomized plasma droplets evaporate in the presence of the drying gas emitted from the jets to obtain dried plasma particles and humid air. A capture filter captures the dried plasma particles and allows the humid air to pass. The humid air passes through the gas outlet and the exhaust port.

The present invention includes a spray drying disposable device for use in a spray drying system. The disposable has a spray drying head and a plasma drying chamber. The head has a spray dry nozzle assembly in fluid communication with the plasma source and the pressurized aerosol gas source. The pressurized gas flows in a vortex pattern that atomizes plasma droplets in the chamber. The head also includes a plenum has uniform air pressure of the drying gas. A baffle plate forms the floor of the plenum having drying gas jets that supply drying gas to the chamber. The atomized plasma droplets evaporate in the presence of the drying gas emitted from the jets to obtain dried plasma particles and humid air. A capture filter captures the dried plasma particles and allows the humid air to pass. The humid air passes through the gas outlet and the exhaust port.

The invention discloses an outdoor waste gas condensate collection plenum chamber, and relates to the technical field of condensate collection, the outdoor waste gas condensate collection plenum chamber comprises a mounting base, a condensate drainage piece is arranged on a movable plate, and a distance adjusting and quantity controlling unit located above the movable plate is mounted on the inner wall of a collection box. According to the device, a condensate drainage part and a distance adjusting and quantity controlling unit are arranged, a floating block moves upwards through buoyancy along with increase of the quantity of condensate in a collecting box, when a first U-shaped frame makes contact with the distance adjusting and quantity controlling unit in the upward moving process, a locking pin and a locking hole are separated, and a water pump is powered on to operate; when the floating block moves to the lowest position, the movable contact piece is separated from the static contact piece, the water pump stops running, the condensate collected in the collecting box can be automatically discharged by repeating the steps, operation is simple, the labor intensity of workers is relieved, and the working efficiency is improved. And meanwhile, the situation of empty pumping caused by insufficient water solution pumping amount of the water pump is also prevented.

Methods and apparatus to determine engine status with plenum measurements are disclosed. A disclosed example apparatus for use with a gas turbine engine having bleed offtakes includes at least one sensor on or within the gas turbine engine, the at least one sensor to measure at least one parameter corresponding to: a first plenum within a casing of the gas turbine engine, the first plenum positioned at or downstream of a volume at which flows from respective ones of the bleed offtakes are combined, and a second plenum within the casing, the second plenum positioned upstream of the first plenum, and an interface to communicatively couple the at least one sensor to a controller, the controller to determine a status of the bleed offtakes based on the at least one parameter.

The invention discloses a continuous force measurement wind tunnel test method based on a differential pressure type pressure scanning valve, and belongs to the technical field of wind tunnel tests. In order to solve the problem that a test result can be introduced by a reference pressure error measured by reference pressure measurement equipment, the method comprises the steps that a differential pressure type pressure scanning valve is installed in an aircraft model, and a reference pressure channel and a last measurement channel of the differential pressure type pressure scanning valve are connected with a wind tunnel plenum chamber static pressure air pipeline; measuring the pressure at the same position with a wind tunnel static pressure sensor; calculating the range of the differential pressure type pressure scanning valve; performing a wind tunnel test, and synchronously acquiring the pressure of each surface pressure measuring hole, the wind tunnel total pressure and the wind tunnel plenum chamber static pressure of the aircraft model in different states; whether the difference value between the wind tunnel plenum chamber static pressure collected by the last channel of the differential pressure type pressure scanning valve and the wind tunnel plenum chamber static pressure collected by the wind tunnel static pressure sensor meets the measurement precision or not is judged based on the range of the differential pressure type pressure scanning valve; and performing test data processing on the effective test data, and calculating the coefficient of the wind tunnel flow field pressure hole.

The present invention includes a spray drying disposable device for use in a spray drying system. The disposable has a spray drying head and a plasma drying chamber. The head has a spray dry nozzle assembly in fluid communication with the plasma source and the pressurized aerosol gas source. The pressurized gas flows in a vortex pattern that atomizes plasma droplets in the chamber. The head also includes a plenum has uniform air pressure of the drying gas. A baffle plate forms the floor of the plenum having drying gas jets that supply drying gas to the chamber. The atomized plasma droplets evaporate in the presence of the drying gas emitted from the jets to obtain dried plasma particles and humid air. A capture filter captures the dried plasma particles and allows the humid air to pass. The humid air passes through the gas outlet and the exhaust port.

The invention provides a weak tunnel wall interference device for a 1-meter transonic wind tunnel airfoil test, and belongs to the technical field of wind tunnel tests. The invention aims to weaken the interference effect of upper and lower tunnel walls during transonic wind tunnel airfoil test. A test section and a wind tunnel body are arranged in a plenum chamber, the wind tunnel body is located on the outlet side of the test section, and the test section comprises left and right side walls, upper and lower ventilation walls, a hinge seat, an adjusting seat, left and right frames and upper and lower frames; the side walls are solid walls and are mounted on the left and right frames, the incoming flow sides of the ventilation walls are connected with the hinge seats, and the outgoing flow sides are connected with the adjusting seats; the four injection seam adjusting pieces are arranged on the outer sides of the left and right side walls and the upper and lower ventilation walls, the outflow side is hinged to the wind tunnel body, the inflow side is connected with a motor driving pull rod on the plenum chamber, and the injection seam adjusting pieces make contact with the outer side lines of the left and right side walls and the upper and lower ventilation walls when closed. The method can effectively weaken the interference effect of the upper and lower tunnel walls during the transonic wind tunnel airfoil test, and improves the data accuracy during the airfoil test of the transonic wind tunnel.

The present invention includes a spray drying disposable device for use in a spray drying system. The disposable has a spray drying head and a plasma drying chamber. The head has a spray dry nozzle assembly in fluid communication with the plasma source and the pressurized aerosol gas source. The pressurized gas flows in a vortex pattern that atomizes plasma droplets in the chamber. The head also includes a plenum has uniform air pressure of the drying gas. A baffle plate forms the floor of the plenum having drying gas jets that supply drying gas to the chamber. The atomized plasma droplets evaporate in the presence of the drying gas emitted from the jets to obtain dried plasma particles and humid air. A capture filter captures the dried plasma particles and allows the humid air to pass. The humid air passes through the gas outlet and the exhaust port.

A patient interface includes: a plenum chamber; a seal-forming structure; a positioning and stabilising structure; a plenum chamber insert configured to be positioned and retained within the plenum chamber; and a vent structure; wherein the plenum chamber insert has a plenum chamber insert port; wherein the plenum chamber insert has an exterior surface configured to be positioned adjacent to an interior surface of the plenum chamber; wherein when the plenum chamber insert is positioned and retained within the plenum chamber, a radial channel is formed by the interior surface of the plenum chamber and the exterior surface of the plenum chamber insert such that gas is able to pass between a patient-proximal side of the plenum chamber insert and a patient-distal side of the plenum chamber insert via the radial channel during use.

A decentralized multi-chamber air duct system for decontaminating air in indoor spaces is provided. The system includes an air duct having positive and negative pressure chambers each in fluid communication with a plenum chamber. A fan extracts air from an indoor space through the negative pressure chamber of the air duct into the plenum chamber, where the air is decontaminated before being discharged back into the same indoor space through the positive pressure chamber of the air duct.

The invention relates to a hardware immersion cooling system (1) comprising a tank (2). The tank (2) is configured to receive a plurality of server modules (10) and contain a cooling fluid. The hardware immersion cooling system (1) comprises a flow distribution system (4) configured to distribute the cooling fluid through the tank (2). The flow distribution system (4) comprises a plurality of flow bars (5) extending along the bottom of the tank (2). The flow distribution system (4) comprises a tank manifold (20) which is configured to distribute cooling fluid over a set of flow bars (5), wherein the tank manifold (20) comprises a plenum (21).

A patient interface includes a plenum chamber pressurizable to a therapeutic pressure, a seal-forming structure configured to form a seal against the patient's face, and a positioning and stabilising structure configured to provide a force for maintaining the seal-forming structure in a therapeutically effective position. The patient interface also includes an RPT device connected directly to the plenum chamber. The PRT device includes an electric blower for providing airflow at the therapeutic pressure. The positioning and stabilising structure supports at least part of the weight of the RPT device. The patient interface may also include an electrical power source electrically connected to the RPT device.

An assembly is provided for a turbine engine. This assembly includes an engine structure, and the engine structure includes a plenum, a reverse flow combustor, a nozzle structure and a cooling circuit. The reverse flow combustor is disposed in the plenum and includes a combustion chamber. The nozzle structure is arranged at an outlet from the combustion chamber. The nozzle structure includes a first platform, a second platform and a plurality of vanes arranged circumferentially about an axis. The vanes extend across the flowpath from the first platform to the second platform. The cooling circuit extends in the first platform and between a circuit inlet into the cooling circuit and a circuit outlet from the cooling circuit. The circuit inlet is fluidly coupled with and disposed along the plenum. The circuit outlet is fluidly coupled with and disposed along the flowpath.

A patient interface may include: a plenum chamber at least partly defining a patient interface chamber, a seal-forming structure constructed and arranged to form a seal with a region of the patient's face, at least one conduit, at least one conduit connector configured to pneumatically connect the at least one conduit to the plenum chamber to provide a flow of air at a therapeutic pressure to the patient interface chamber for breathing by the patient, and a positioning and stabilising structure to provide a force to hold the seal-forming structure on the patient's head, the positioning and stabilising structure comprising at least one tie, wherein the at least one conduit connector includes an anti-asphyxia valve configured to allow the patient to breath from ambient through their mouth in the absence of a flow of pressurised air.

A head-worn air pump is provided which directs a stream of air to the goggles between the user and the transparent / translucent surface. The air pump can be attached to the rear portion of the goggle strap, or to an auxiliary or supplemental strap, so as to be behind the user and out of the line of sight of the user. One or more flexible tubes or hoses can be attached to a manifold or plenum receiving air under pressure from the pump, and lead from the rear of the head to one or both sides of the goggles. A rechargeable battery can power the air pump, and the pump can be switched on and off by a button on the pump housing, even by a user wearing gloves or hand coverings. The battery can be recharged by a conventional USB connection. The air can be supplied either at ambient temperature or refrigerated and / or heated, as desired in particular applications.

An air handling transport includes a base frame, and an air housing mounted to the base frame. The air housing includes a combustion air plenum on a longitudinal side of the air handling transport, the combustion air plenum outputting filtered combustion air. The transport further includes an exhaust stack mounted to the base frame for releasing combustion exhaust air. The exhaust stack is rotatable between the longitudinal side in an operation mode and an end side in a transportation mode. The exhaust stack includes a stack base having an exhaust plenum and a stack extension. The stack extension is housed within the stack base in the transportation mode and extends vertically by a predetermined vertical distance in the operation mode.

A patient interface may include a plenum chamber pressurisable to a therapeutic pressure; a seal-forming structure constructed and arranged to form a seal with a region of the patient's face; a positioning and stabilising structure to provide an elastic force to hold the seal-forming structure on the patient's head, the positioning and stabilising structure may include a tie; a vent structure; a decoupling structure configured to provide a fluid connection between the plenum chamber and an air circuit for the flow of air at the therapeutic pressure for breathing by the patient; and a frame having at least one tie attachment structure to receive the tie, wherein the frame is configured to be resiliently movable in any direction having at least one of a component parallel to the patient's sagittal plane, a component parallel to the patient's coronal plane, a component parallel to the patient's Frankfort horizontal plane.

A patient interface is configured to deliver a pressurized flow of respiratory gas to a patient's airways. The patient interface includes a cradle base configured to cradle the patient's nose in use. Two protrusions extend from the cradle base and are configured to be inserted into the patient's nares in use. Each of the protrusions have formed therein an opening configured to allow a continuous flow of air therethrough. In addition, a plenum base forms a plenum chamber together with the cradle base. The cradle base is configured so that movement of the cradle base is decoupled from the plenum base.

The utility model discloses a reverse jet flow system structure for a wind tunnel test. The reverse jet flow system structure comprises a tail jet pipe, a gas collection chamber, a pull rod, a high-pressure pipeline, a ventilation support rod and a force measurement balance. The reverse jet flow system is fixedly connected with a wind tunnel through a supporting rod, a gas collection chamber is connected with a ventilation supporting rod through a pull rod and a high-pressure pipeline, a balance is connected with the ventilation supporting rod through cone matching, and finally a tail jet pipe and a test model are installed to achieve installation and reverse jet flow of the model in the wind tunnel. According to the utility model, the balance is arranged on one side of the ventilation support rod in an offset manner, and the jet flow gas collection chamber is moved forwards, so that the axial force of the test model is measured while the reverse jet flow is realized.

A gas turbine shroud assembly comprises a turbine shroud comprising shroud sectors (28) made of ceramic matrix composite material, a casing (22) made of metal alloy and a sectorized cooling device (52) comprising a plenum chamber (52B) delimited by an air diffuser (54) having holes for diffusing jets of cooling air over a radially outer surface (30B) of the turbine shroud. The assembly further comprises two metal alloy bushings (60) housed in two cavities (62) present at the circumferential ends of the air diffuser (54). Each of the bushings is in the form of a stepped cylinder with a base (60A), a lower face (601) of which bears on the radially outer surface (30B) of the turbine shroud, and a stud surmounting the base (60B). The stud is intended to receive a spring (58) compressed between an upper face (602) of the base and an upper face (620) of the cavity.

Various showerheads and methods are provided. A showerhead may include a faceplate partially defined by a front surface and a back surface, a back plate having a gas inlet, a first conical frustum surface, and a second conical frustum surface, a plenum volume fluidically connected to the gas inlet and at least partially defined by the gas inlet, the back surface of the faceplate, the first conical frustum surface, and the second conical frustum surface, and a baffle plate positioned within the plenum volume, and having a plurality of baffle plate through-holes extending through the baffle plate. The second conical frustum surface may be positioned radially outwards from the first conical frustum surface with respect to a center axis of the showerhead, and the second conical frustum surface may be positioned along the center axis farther from the gas inlet than the first conical frustum surface.

There is disclosed fluid distribution junctions and methods of assembly therefor. Flexible conduits connect to the junctions, and a consumable subsystem of the junction, conduits and receptacle caps or other connectors may be pre-assembled for ease of use. A subassembly is formed by coupling a plurality of flexible tubular conduits to a plurality of fluid connectors of a fluid junction, the fluid junction having an inner fluid plenum chamber leading to the fluid connectors. Two shells are sandwiched on opposite sides of the subassembly, the shells having mating concave receiving surfaces that together conform around each of the fluid connectors and clamp the tubular conduits onto the circular beads. Juxtaposed joint surfaces on each pair of mating concave receiving surfaces are bonded together such as with sonic welding to make the fluid distribution junction assembly.

A trash can assembly includes a trash can having an interior space and a vacuum assembly. The vacuum assembly comprises a top surface forming a false bottom, an elevated portion with a vacuum vent, a liquid gutter surrounding the elevated portion, and a plenum housing a vacuum motor. The vacuum motor is configured to draw air through the vacuum vent into the plenum, causing a trash bag to conform to the interior surface of the trash can. The assembly may include a controller, power source, charger port, seal indicator, status indicator, wireless control switch, and may operate in reverse mode for bag inflation or demonstration. The trash can may nest into an outer container formed of a rigid material including plastics or metals suitable for consumer waste receptacles, and connect electrically via detachable connectors. The system enhances bag capacity, aesthetics, and operational convenience.

An aerosol concentrator dividing an input aerosol into a respirable aerosol of an increased particle concentration and an exhaust aerosol of a lower particle concentration. The concentrator comprises a cross-slit of an input tube and output tube with a gap between the cross-slits of input tube and the output tube. A housing encompasses a plenum which encompasses the gap and is connected to an exhaust port through which an exhaust aerosol exits the plenum. A radial size of the plenum is can be significantly larger than the length of the slits in the cross-slit.

Here on Earth, there is a need and is quite essential that we keep moving. But we must be progressive in our living and livelihood while protecting and preserving our planet. There are places to go, people to meet, and business to be had. Designed with electric aircraft and flying cars or taxis in mind, the Augmentable Air Injected Plenum Propulsion Drive for Electric VTOL Operation and Flight is the first electric VTOL propulsion system to employ the concept of opposing air flow and cyclic column compression of those opposing flow(s) to pressurize a plenum chamber. Opposing flow and cyclic column compression is then harnessed for the purpose of augmenting, or amplifying, injected air to provide enhanced air / fluid power to an electric VTOL thrust system for the purpose of VTOL operation and horizontal flight and is multi-modal for VTOL and horizontal flight.For VTOL operation, air is drawn in by injectors, compressed, and channeled into the plenum chamber which provides energized air to the ventral VTOL thrust assembly which further accelerates the air for vertical propulsion thrust. The PPD then goes into multi-mode transition by diverting air from the plenum chamber into rear injectors as they switch from injector mode to rearward thrust. This described synergistic process which is powered by electricity is what gives the Plenum Propulsion Drive the ability to provide power for flight while keeping the Earth healthy and green.

The present invention provides a mixing device for combined power high-altitude simulation testing, which is arranged inside a plenum chamber. The mixing device includes multiple nozzles, a front baffle and a rear baffle arranged at both ends of the nozzle, the front baffle and the rear baffle being connected to the cylinder support via a support seat, and a three-layer heat insulation plate provided inside the nozzle. The nozzle is slidably connected to the front baffle and fixedly connected to the rear baffle. The mixing device provided by the present invention is arranged inside the plenum chamber, eliminating the air supply pipeline from the outlet of the mixing device to the plenum chamber section in the traditional solution, greatly reducing the thermal inertia of the temperature control system of the air intake equipment, reducing the temperature loss caused by the development of the air flow along the process and the heat exchange of the pipe wall, shortening the time required to obtain the temperature conditions required for the test state through mixing, and improving the efficiency of entering the test state.

A shell-and-tube heat exchanger assembly including a first tube sheet, a second tube sheet, and a plenum, is disclosed. The first tube sheet is adapted to be secured to a shell of the shell-and-tube heat exchanger assembly. The first tube sheet includes a plurality of first holes adapted to support a plurality of tubes extending through the shell. The second tube sheet is adapted to be fastened to a front surface of the first tube sheet and fastened to a rear surface of the plenum. The second tube sheet includes a plurality of second holes adapted to support the plurality of tubes extending through the plurality of first holes. The second tube sheet is made of a metal adapted to limit a corrosion response of the plurality of tubes when exposed to a chiller fluid.

The invention relates to the technical field of ventilation plenum chamber welding, in particular to an intelligent welding device and system for a box body of a ventilation plenum chamber. A multi-axis mechanical arm is installed at the support, a welding head is connected to the outer end of the multi-axis mechanical arm, a laser positioning device is installed at the welding head, a sliding base is slidably connected to the bottom guide rail in the extending direction of the support, a displacement mechanism is arranged on one side of the bottom guide rail, and a rotating motor is installed in the middle of the top end of the sliding base. The output end of the rotating motor is fixedly connected with a placing platform, and a positioning mechanism is mounted at the top of the placing platform; according to the laser positioning device, real-time identification and tracking of a welding seam are achieved, the positioning precision is within + / -0.1 mm, the defects of air holes, incomplete fusion and the like in traditional welding are overcome, the strict requirement of the ventilation plenum chamber for air tightness is met, and the welding efficiency is greatly improved.