16733 results about "Air chamber" patented technology

A lid assembly for a semiconductor processing system is provided. The lid assembly generally includes a lid having a gas manifold mounted on a first side and a baffle plate mounted on a second side. The gas manifold is configured to deliver a plurality of gases to a plenum defined between the baffle plate and the lid. The gases are mixed within a recess formed in the baffle plate before exiting into the processing system through a singular passage.

A method of and apparatus for providing tunable gas injection in a plasma processing system (10, 10′). The apparatus includes a gas injection manifold (50) having a pressurizable plenum (150) and an array of adjustable nozzle units (250), or an array of non-adjustable nozzles (502, 602), through which gas from the plenum can flow into the interior region (40) of a plasma reactor chamber (14) capable of containing a plasma (41). The adjustable nozzle units include a nozzle plug (160) arranged within a nozzle bore (166). A variety of different nozzle units are disclosed. The nozzle plugs are axially translatable to adjust the flow of gas therethrough. In one embodiment, the nozzle plugs are attached to a plug plate (154), which is displacable relative to an injection plate (124) via displacement actuators (170) connecting the two plates. The displacement actuators are controlled by a displacement actuator control unit (180), which is in electronic communication with a plasma processing system control unit (80). The gas flow into the chamber interior region is preferably controlled by monitoring the pressure in the plenum and in the chamber and adjusting the nozzle units accordingly. Where the nozzle units are not adjustable, a portion of the nozzles are sized to a first flow condition, and another portion of the nozzles are sized to a second flow condition.

An apparatus and related method for distributing process gas in a vapor deposition system is described. The gas distribution system includes a vertically movable piston within its plenum, and the movement of the piston controls the flow rate of process gas through the vapor distribution plate of the gas distribution system. The piston can be used to accommodate changes in processing parameters that affect flow characteristics and to create edge-enhanced, uniform, and center-enhanced profiles of deposited material on a substrate without the need to replace the vapor distribution plate.

A system includes a substantially sealed, substantially airtight cabinet sized for housing a vertical array of heat-producing units, the cabinet having an exterior shell and the system including an interior divider wall disposed inside the cabinet, the shell and divider wall providing an equipment chamber adapted to support the array such that the array cooperates with the shell and divider wall in use to define a first plenum, the first plenum having a first inlet defined by the divider wall for receiving a flow of cooling gas and having a first outlet defined by a plurality of openings through the array whereby the first plenum communicates with the openings in use to exhaust substantially all of the flow of cooling fluid through the openings and hence through the array, wherein the divider wall is configured to allow the first inlet to admit the gas to the first plenum in a substantially horizontal direction.

A cushion (10, 12) has a plenum (16) which includes a plurality of flexible plastic woven tubes (34) held within a pair of similarly woven sheathes (38,40). The plenum has its sides and bottom covered by an air impermeable (14) layer with the top covered by an air permeable layer (20). A low to medium density foam pad (19) is located between the plenum (16) and the top layer (20). Conditioned air is provided to the cushions (10,12) from a Stirling cycle heat pump (44).

Apparatus suitable for atomizing and vaporizing at least a first liquid by colliding at least one gas with the first liquid. The apparatus includes a gas inlet through which the gas enters the apparatus and a first liquid inlet through which the first liquid enters the apparatus. A discharge end of the apparatus includes at least one first liquid discharge outlet through which at least one stream of the first liquid is discharged from the apparatus. The discharge end also includes at least one gas discharge outlet through which at least one stream of gas is discharged from the apparatus to collide with and thereby atomize the discharged stream of the first liquid. A first liquid passageway interconnects the first liquid inlet with the first liquid discharge outlet. A gas passageway interconnects the gas inlet with the at least one gas discharge outlet. In one embodiment, the gas passageway comprises at least one gas chamber in thermal contact with an initial portion of the first liquid passageway such that a heated quantity of the gas in the chamber preheats the first liquid in the initial portion of the first liquid passageway. In alternative embodiments, the gas passageway includes a pressure dampening chamber allowing gas to be continuously discharged without pulsating.

Disclosed are devices and methods for the control of body fluid flow in the extracorporeal treatment of body fluid. Body fluid flow through on of a body fluid flow circuit (10, 50, 60, 100 or 250) is controlled by alternating applying vacuum pressure and positive pressure to the circuit through a pumping chamber (30, 51, 66, 102, or 200) coordinated with flow control valves (40, 42, 44, 62, 114, 116, 118, and 120) to effect a net downstream flow of body fluid through the circuit.

A bicycle suspension assembly may be in the form of a bicycle front suspension fork. The suspension fork may include a pair of telescoping fork legs. In one arrangement, a suspension spring and a damper are provided in only one of the pair of fork legs. The suspension spring assembly may include a negative spring. In one arrangement, the negative spring is a dual stage negative gas spring in which a negative spring gas chamber includes a first chamber section and a second chamber section. The first chamber section and the second chamber section are uncoupled in a first position of the suspension spring and the first chamber section and the second chamber section are coupled in a second position of the suspension spring.

Pressure-sensitive vales are incorporated within a dampening system to permit user-adjustable tuning of a shock absorber. In one embodiment, a pressure-sensitive valve includes an isolated gas chamber having a pressure therein that is settable by a user.

An air distribution arrangement is adapted to be arranged in a cabinet for housing rack-mounted equipment that generates heat in use. The arrangement can be part of the cabinet when constructed or it can be an add-on feature. The arrangement includes plenum structure comprising side walls and a top wall that cooperates with the front door of the cabinet and the faces of the rack-mounted equipment to define a plenum. An air box in the cabinet draws ambient air from adjacent the floor into the plenum at a rate of at least 850 cfm. The ambient air is cooler than the air in the cabinet. The faces of the rack-mounted equipment have openings for receiving the ambient air to cool the interiors thereof. After cooling the rack-mounted equipment the air can be exhausted back to the ambient. The side walls and the top wall of the arrangement are adjustable to permit adjustment of the depth of the plenum. Pressure in the plenum can be relieved by slots in the plenum structure.

A dust collector for use in an autonomous floor-cleaning device is disclosed to include a container, which is formed of a container body and a top cover shell and has two bottom suction holes and a top air outlet, a box-like partition member, which divides the inside space of the container into a bottom storage chamber and an upper storage chamber and has a through hole in communication between one bottom suction hole and the air outlet, and a filter member set between the through hole of the partition member and the air outlet of the container for removing dust from air passing through the upper storage chamber.

A method for adjusting pressure within an air bed comprises providing an air bed that includes an air chamber and a pump having a pump housing, selecting a desired pressure setpoint for the air chamber, calculating a pressure target, adjusting pressure within the air chamber until a pressure within the pump housing is substantially equal to the pressure target, determining an actual chamber pressure within the air chamber, and comparing the actual chamber pressure to the desired pressure setpoint to determine an adjustment factor error. The pressure target may be calculated based upon the desired pressure setpoint and a pressure adjustment factor. Furthermore, the pressure adjustment factor may be modified based upon the adjustment factor error determined by comparing the actual chamber pressure to the desired pressure setpoint.

A sleep surface is formed by joining longitudinal sides of two juxtaposed air bladders, thereby providing a continuous sleep surface having two independently inflatable air chambers. A support member can be inserted between the two independently inflatable air bladders to provide a continuous sleep surface that eliminates vertical displacement of a user.

An oxygenation and temperature thermal therapy and oxygenation treatment pad with a plurality of air chambers is disclosed for treatment of skin wound tissues. The air chambers are filled and released by a valve assembly that may be separate from or integrated within the blanket. The thermal therapy and oxygenation treatment pad includes a fluid bladder for delivering hot and / or cold therapy to a patient in conjunction with oxygenation. The temperature therapy blanket may also include an air bladder for providing compression. Oxygenation is provided subsequent to initial heating in order to promote oxygen absorption by the wound tissues prior to the cooling thereof which facilitates pulling oxygen into the wound tissues. This Abstract is provided to comply with rules requiring an Abstract that allows a searcher or other reader to quickly ascertain subject matter of the technical disclosure. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

An electronic nose system for detecting quality of agricultural products mainly comprises a gas enrichment module mainly for collecting the low-concentration smell, a gas chamber and gas circuit module and a sensor array mainly for converting the smell signal into the electric signal, a sensor conditioning circuit and a data preprocessing module mainly for filtering, analog-to-digital converting and feature extracting of the output signal of the sensor array, an embedded system with data storage for identifying and judging the signal and a display and result output module, wherein the gas enrichment module consists of an adsorption tube filled with adsorbent, an electric heating wire and a temperature control device. The electronic nose system has the characteristics of small size, convenient carrying, high sensitivity of the system and wide application range of the system.

An electronic equipment cabinet is provided, which includes an upper portion, a lower portion and a support configured to receive electronic equipment. The bottom portion defines a base plenum configured to receive a low temperature gas and communicates with a gas flow distribution pathway, which includes a first plenum communicating with the base plenum and configured to direct the low temperature gas to the support. The gas flow distribution pathway further includes a second plenum configured to receive a high temperature gas flow from the support and direct the high temperature gas flow to the top portion. The top portion includes at least one fan configured to direct the high temperature gas flow from the gas flow distribution pathway. A temperature sensor senses the temperature of the high temperature gas flow and communicates with a control module to control the first plenum and the at least one fan for regulating temperature.

An air filter device and an operating method thereof. The air filter device comprises an air filter system and a powder distribution system. The air filter system comprises an air filter chamber (1), a clean air chamber (2), and a high-pressure jet pulse powder cleaning device (3). An entrance of the air filter chamber (1) is in communication with an air inlet pipe (4); an exit of the clean air chamber (2) is in communication with an air outlet pipe (6), and the air outlet pipe (6) is in communication with an exhaust fan (9). A plurality of bag filters or filter cartridges (10) are disposed in the air filter chamber (1). An opening end of each of the bag filters or filter cartridges (10) is in communication with the clean air chamber (2), and high-pressure jet pulse powder cleaning devices (3) are disposed above the opening end of the corresponding bag filters or filter cartridges (10). The powder distribution system includes a powder storage tank (13), which is in communication, via a powder delivery tube (15), with the air inlet pipe (4) of the air filter chamber (1). The operating method comprises a first powder distribution step and a second powder distribution step, which are respectively performed according to pressure detection status of the air filter chamber (1).

Expansion of an air bag can be smoothly effected even in a small space by controlling the air bag in thickness and introduction of the gas for expansion, and the protection of an occupant can be rapidly implemented with a relatively small volume of the gas. An air bag device comprises a first air chamber 12 for protection of the chest or the waist of an occupant, a second air chamber 14 for protection of the head of the occupant, and a lower portion of the diffuser bag 30 interposed therebetween for portioning out gas from an inflator 20, wherein the second air chamber 14 has a first tether 50 forming a gas passage 14a for guiding gas jetted from gas outlets of the lower portion of the diffuser bag 30 into the second air chamber 14 so as to go around the tether of a head protection region of an air bag 1, from the back side thereof toward the front side thereof, and has a second tether 52 for forming a gap provided at the lower end of the first tether 50 in the vicinity of the gas outlets, for letting a portion of the gas escape into a front part of the second air chamber 14.

The invention relates to systems and methods for rapidly and isothermally expanding gas in a cylinder. The cylinder is used in a staged hydraulic-pneumatic energy conversion system and includes a gas chamber (pneumatic side) and a fluid chamber (hydraulic side) and a piston or other mechanism that separates the gas chamber and fluid chamber while allowing the transfer of force / pressure between each opposing chamber. The gas chamber of the cylinder includes ports that are coupled to a heat transfer subassembly that circulates gas from the pneumatic side and exchanges its heat with a counter flow of ambient temperature fluid from a reservoir or other source.

A high-profile air sleep system having a pair of air posturizing sleep surfaces which may be individually inclined and air adjusted comprises an air posturing module having an outer module mattress case. A first case section extends medially along a length of said mattress case to define a first movable posturing section, and a second case section extends along a length of said mattress case to define a second movable posturing section. A third fixed module case section is included in said mattress case below the first and second posturing sections. A first air chamber is carried in the first and third case sections, and a second air chamber is carried in the second and third module sections to provide first and second posturizing module sections with individually elevatable posturizing sleep surfaces.

A two-stage garbage incinerator is characterized in that secondary air supply holes are arranged on front and rear arches of a furnace body and an ignition combustion-supporting hole is arranged on the rear arch; a grate in the furnace body is divided into two stages from top to bottom; the upper stage is a forward pushing stage and the lower stage is a backward pushing stage; an independent primary air chamber is arranged below each stage; the heads of the grates on the forward pushing stage face the low point direction of the grates; the heads of the grates on the backward pushing stage face the high point direction of the grates; moving beams of the grates on the same stage are equipped with left and right draw bars arranged side by side; the left and right draw bars are supported by supporting roller devices and are connected with the moving beams to form draw bar frames; and the ends of the draw bar frames are connected with front rocker arm driving mechanisms, lateral rocker arm driving mechanisms or front straight driving mechanisms. The incinerator can realize full drying of the whole garbage material, ensure complete combustion and ensure the garbage incineration effect and hot ignition loss rate. At the same time, the incinerator has less spare parts and spare part specifications, good quick-wear part interchangeability and low manufacture and maintenance costs.

The invention relates to multi-column sectional drive combined type domestic incinerator. It is set three fire-grates that drying section, burning section, and firing section. The middle fire grate is connected between them. There is altitude fall between them that the drying section is the highest point; the firing one is the lowest point. The primary air chamber is respectively set under them. The incinerator fire grate system of the invention has independent drive mechanism, air supply system, and air chamber for each section which is convenient for controlling technical parameter that traveling speed, air quantity, air temperature, air pressure etc to realize full drying and burning for whole garbage layer.

A system for separating components of a slurry is disclosed, the system including a housing; a basket for holding at least one shaker screen, the basket movably mounted in the housing; at least one vibrator coupled to the basket; a sump disposed below the basket to collect at least a portion of the slurry passing through the at least one shaker screen; a pressure differential device fluidly connected to the sump for developing a pressure differential across the at least one shaker screen; and a toggling device for toggling the pressure differential across the screen. A system including a degassing chamber fluidly connected to a sump and a pressure differential device, wherein the degassing chamber is disposed between the sump and the pressure differential device, and a fluid conduit fluidly connected to the degassing chamber for recovering a degassed fluid is also disclosed.

An apparatus for accurately sensing room conditions and positioned in the air stream to the return air plenum. The apparatus is a combination of a temperature and volatile organic compound (VOC) sensor. The sensor module is built into a ceiling grid system with the body of the sensor module extending into the return air plenum. The ceiling grid has a slot fabricated into its face which allows the air stream from the room to flow by the sensors on its way to the plenum. This enables both the temperature and the composition of the air to be monitored at the optimal location. A portable pollution sensor device that measures and monitors leading indicators of indoor air quality and the extent of pollution is used in conjunction with the ceiling grid mounted sensor modules. The portable device documents and benchmarks air quality both in buildings under construction and in existing buildings. The portable device is network-enabled so as to simultaneously transmit the data to various control devices. In addition to its use to monitor areas not otherwise covered by the ceiling grid mounted sensors, the hand-held sensor can be used during building construction to determine the best locations in the ceiling grid system for mounting of the fixed pollution sensors.

A portable heater adapted for use in a recreational enclosure or temporary work enclosure includes a housing having an air inlet on the lower front face. A gas supply is partially enclosed by the housing which provides propane to the mouth of a burner venturi located within the housing. Air is drawn through the air inlet and also enters the mouth of the burner venturi. The air and gas are mixed thoroughly as they travel upwardly through the burner venturi. A chimney effect increases fresh air flow velocity into the burner venturi and allows the heater to operate at a reduced fuel gas pressure. Upon exiting the burner venturi, the air / gas mixture is to a plenum and radiant surface where combustion takes place. Any conventional means may be provided to ignite the air / gas mixture in order to cause combustion. The combustion products deflect off a deflector, which is cooled on a rear face by air flow through the housing, which decreases the temperature of the combustion products before exiting an outlet. An oxygen depletion system (ODS) shuts off the portable heater when oxygen levels begin to drop and consequently carbon monoxide levels begin to rise.

A system for cooling computer equipment in a data center. The system includes a raised floor defining a pressurized under-floor plenum; a computer room air conditioning unit disposed on the raised floor and having a hot air inlet and a cold air outlet, wherein the cold air outlet is in fluid communication with pressurized under-floor plenum; and a server cabinet housing server equipment and including a pressurized vertical plenum in fluid communication with under-floor plenum via an inlet duct. The server cabinet is configured to receive a cold air stream from the under-floor plenum via the inlet duct into the vertical plenum and draw the cold air across the server equipment to provide cooling without the use of external fans. The system may also include an inflatable airfoil damper assembly disposed within the inlet duct and configured to provide failsafe variable airflow to the vertical plenum within the server cabinet.