161results about How to "Increase volume flow" patented technology

A microfluidic apparatus having a one-dimensional or two-dimensional hydrodynamic flow system to control stable and proper digitally coded bead orientation through the optical detection area of a bioanalysis system. The hydrodynamic system include one core flow, which carries the rectangular barcode beads, and sheath flows, on the sides of or about or around the outer periphery of the core flow, pull the core flow into a proper orientation. The sheath flows, at much higher flow speed but lower volume flow rate, can be pushed or pulled by vacuum, gravity, or pressure. By this method, the coded bead will align themselves in line and flow reliably, without wobbling or flipping, in the core flow channel through the detection zone. By adjusting the relative flow rate of core flow and sheath flows, the coded beads flow reliably in the flow system, thus it can be decoded and detected by an optical system accurately.

A method of conditioning mixed liquor in a membrane biological reactor comprising adding to the mixed liquor an effective coagulating and flocculating amount of one or more water soluble cationic, amphoteric or zwitterionic polymers, or combination thereof and methods of reducing membrane fouling, enhancing membrane flux and reducing sludge production.

A pusher assembly for a delivery system for a self-expanding stent (6) which is delivered by proximal withdrawal of a sheath (4) radially surrounding the stent has a stent pusher element (8) which defines a lumen for a guidewire (2), a pusher strand (16) that extends to the proximal end of the delivery system and bears an end-wise compressive stress during release of the stent. A transfer shaft (12) links the distal end of the pusher strand (16) to the pusher element (8) and lies side-by-side with the guidewire (2). In a rapid exchange version, an adapter (20) provides two lumens side-by-side, one (22) carrying the pusher strand (16) and the other (14) defining a proximal guidewire part. To the adapter is mounted the proximal end of the stent sheath (4). The system allows modular (14) construction, a tapered tip (4A) on the sheath, and an uncluttered internal configuration which facilitates passage of pulses (F) of liquids from the proximal to the distal end of the system.

The invention relates to a tire having a circumferential rubber tread of a cap / base construction composed of a cap rubber layer as the tire running surface and an internal base rubber layer underlying said tread cap layer. The said tread cap layer is composed of a primary tread cap portion and one or two lateral tread cap portions of rubber compositions containing precipitated silica and / or rubber reinforcing carbon black reinforcement and wherein the rubber composition of at least one of said lateral tread cap portions contains a dispersion of short carbon fibers. Said primary tread cap portion contains a major portion of the running surface of the tread and is comprised of a silica-rich or carbon black-rich, preferably silica-rich, reinforcement-containing rubber composition, and said lateral tread portion(s) contains a minor portion of the running surface of the tread and is comprised of a silica-rich or carbon black-rich, preferably carbon black-rich, reinforcement-containing rubber composition. Where said primary tread cap portion is comprised of a silica-rich rubber composition, said lateral tread cap portion(s) is comprised of a carbon black-rich rubber composition and visa versa. The said tread cap portions are load bearing portions in the sense of extending from the running surface of the tread radially inward to said underlying tread base layer. In one aspect, the portioned rubber tread cap layer and the rubber tread base layer are co-extruded together to form a unitary composite thereof.

An apparatus for pumping fluid through tubing comprising a stop platen is disclosed. The stop platen is operatively arranged to depress a wall of the tubing along a section of a longitudinal axis of the tubing. The stop platen is narrower than the tubing along a transverse axis of the tubing. The invention further comprises a cabinet containing the stop platen, a door rotatably fixed to the cabinet, and locking means for preventing rotation of the door. The locking means are operatively arranged to be unlocked by a tubing occluder.

A device and method for delivering an aerosolized liquid having therapeutic properties to a user's lungs. The compact and convenient device includes a housing of such size that it can be held in a user's one hand with an exit opening in the housing for directing the aerosol to the user's mouth. The housing encloses a dispensing system for containing the liquid to be aerosolized and delivering it to an electrohydrodynamic apparatus and an electrohydrodynamic apparatus for aerosolizing the liquid and delivering the aerosol to the exit opening. The electrohydrodynamic apparatus produces a cloud of aerosolized liquid droplets having a monodispersed reparable droplet size and near zero velocity. The aerosolizing apparatus includes a plurality of spray sites each having a tip end, the spray sites cooperating with a charge source to result in an aerosolized spray from at least one tip end, a plurality of discharge electrodes downstream of the tip ends, and a plurality of reference electrodes downstream of the plurality of discharge electrodes.

A unit arrangement having a receiving housing, in particular a switchgear cabinet, in an interior of which electrical units are accommodated and having a cooling device which is in air-conducting communication with the interior of the receiving housing via at least one air inlet and at least one blower aperture, and a cooling operation monitoring device. A requirement-orientated control of the cooling operation is possible when the cooling operation monitoring device has an inlet temperature sensor which measures a temperature of the air to be cooled which is supplied to the cooling unit via the air inlet. An outlet temperature sensor measures a temperature of the cooled air which is supplied to the interior of the receiving housing via the blower aperture. A computing unit of the cooling operation monitoring device determines a temperature difference between the temperature measured by the inlet temperature sensor and the outlet temperature sensor.

A valve apparatus. The valve apparatus is disposed within a well so that an annulus is formed between an outer portion of the valve and an inner portion of the well. In one preferred embodiment, the valve apparatus comprises an outer mandrel containing an annulus port; an inner mandrel slidably disposed within the outer mandrel, and wherein the inner mandrel contains a production and equalizing port. The valve contains a seal assembly so that pressure from the annulus is isolated from the inner portion of the inner mandrel. In one preferred embodiment, the seal assembly comprises: a first header seal; a first seal ring, abutting the header seal, for sealing with the outer portion of the inner mandrel; a follower seal abutting the seal ring; a second seal ring, abutting the follower seal, for sealing with the outer portion of the inner mandrel; a second header seal; and an equalizing seal abutting the second seal ring.

The present invention comprises an apparatus for pumping fluid through tubing. The apparatus includes a tubing base having a tubing support surface and a stop platen. The stop platen and the tubing support surface each comprise respective ridges aligned with a direction of fluid flow through the apparatus. The respective ridges are operatively arranged to engage a wall of tubing along a longitudinal axis of the tubing. In some aspects, the respective ridges are arcuate in a plane orthogonal to the direction of flow. In some aspects, the respective ridges are centered with respect to a transverse axis of the tubing and have a respective width less than an outside diameter of the tubing.

The invention concerns a device to convey and / or spray free-flowing media, in particular fluids, which works in accordance with the energy storage principle and is designed as an electromagnetically-powered reciprocating pump with at least one armature device as a drive element, whereby the armature device includes at least two armature elements and the armature elements are assigned magnetically corresponding yoke elements.

The present invention is directed to a valve used in both conventional and bag-on-valve aerosol container applications that allows a high flow rate of especially viscous substances. Valves according to the present invention include a valve housing, a valve stem, and a spring or other biasing device that allows the valve stem to move relative to the valve housing. The valve stem is hollow to allow the flow of product to and from a bag attached to the valve housing. There are radial bores and a seal near the bottom of the valve stem that dictate the passage and flow rate of pressurized product between the product container and the environment. The bore shape and size can be selected to facilitate a high volume flow rate for highly viscous substances.

The present invention is directed to a metering valve used in both conventional and bag-on-valve aerosol container applications that allows a high flow rate of especially viscous substances. The metering valve according to the present invention including a valve housing, a valve stem, and a spring or other biasing device that allows the valve stem to move relative to the valve housing. The valve stem serves as a metering chamber with a metering device in the form of a ball or disk without other mechanisms such as springs or mechanical parts within the valve stem. Radial bores and a seal near the bottom of the valve stem provide for dispensing of pre-determined quantities of product from an aerosol container pressurized with liquefied propellants or compressed gas. The bore shape and size can be selected to facilitate a high volume flow rate for highly viscous substances.

An arrangement for decanting liquids includes a tubular-shaped support (1) having a flow channel (2). The flow channel (2) is blocked by a valve plate (3) which is coupled via axial connecting elements (4, 4′) to the relative movement of an inner sleeve (5) and an outer sleeve (6) of the support (1). The outer sleeve (6) lies in overlapment and the axial connecting elements (4, 4′) extend into the interior of the support. The valve plate (3) can be lifted from its valve seat against a spring force engaging at the inner sleeve (5) and at the outer sleeve (6). A radial flange collar (13) is formed on the outer sleeve (6). To ensure an accurate metering at the highest possible volume flow of the discharged liquid at low manufacturing costs, the valve plate (3) is mounted at a free end (9) of the support (1) and the axial connecting elements are configured as tension rods (4, 4′) and are arranged next to an edge of the valve plate (3).

Disclosed herein is an improved fluid end discharge cap and bore to minimize or avoid cavitation during use of a reciprocating fluid end pump and hence prolong the use and life of the fluid end assembly. The improved design included modifying the current cylindrical discharge cover or cap to a tapered, conical or convex design, enlarging the discharge bore, and recessing seat decks into the suction and discharge bores, to avoid fluid flow obstructions and increase volume flow. The pump outlet bore was enlarged and the bore height and diameter were increased to further increase flow. The conventional design has edges and ninety-degree angles which tended to allow for fluid media to remain in the bore and trigger pump cavitation. The current inventive design has eliminated restrictions, in particular 90° angles, to allow uninterrupted fluid flow therein.

In a method for venting a crankcase of an internal combustion engine, in which, in a first operating range under part-load, the crankcase is vented via a first venting line, which opens into an intake line of the internal combustion engine downstream of a throttle valve, and in a second operating range under full load engine operation, the crankcase is vented via a second venting line, which opens into the intake line upstream of the throttle valve, the first venting line includes a control valve and a central unit is provided which operates the control valve so as to control the flow of vent gases through the first venting line over a range including a complete flow interruption under engine overrun condition to prevent venting gases from reaching the engine exhaust system when the internal combustion engine is operating in an overrun mode.

The invention relates to a high-voltage axial flow fan, comprising an impeller device and a drive motor device. The axial flow fan is characterized in that: the impeller device comprises a hub, wherein a plurality of wing-shaped blades are arranged on the hub, a conical fairing is arranged at the inlet end of the hub, and the hub is arranged on the drive shaft of the drive motor device; the drive motor device is arranged in the center of a flow guidance cylinder and is fixed on the inner wall of the flow guidance cylinder through a plurality of pull arms, and the conical fairing is arranged on the rear part of the drive motor; each wing-shaped blade comprises a blade body and a blade root, a wing-shaped pit area is arranged on the lower part of the inlet edge of the blade body, a wing-shaped convex area is arranged in the middle of the inlet edge of the blade body, and a wing-shaped concave area is arranged on the upper part of the inlet edge of the blade body; an inward convex acceleration area is arranged on the blade basin surface of the blade body; and a rectification area is arranged at the outlet edge of the inside of the blade body.

An energy efficient membrane based desalination process, which utilizes an osmotically driven energy recovery sub-process. Energy recovery sub-process involves the extraction of water from low salinity first aqueous solution by using a high salinity content, pressurized second aqueous solution to draw the water from first aqueous solution across a semi-permeable membrane. High salinity content, pressurized second solution can be used to generate osmotic pressure on the low salinity content first solution to drive water from first solution to the second solution with respect to chemical potential differences. The process also harvests the Gibbs free energy of mixing in terms of pressure conservation in the second solution, while the volume of second solution is increasing by the drawn water from the first solution.

The invention relates to an internal circulation-boiling kettle. It includes kettle body, tube and shell heat exchanger, and allocation cover. The tube and shell heat exchanger includes shell body and many exchange tubes. Its feature is that kettle body is set helical runner linked to electric machinery. After adopting the upper structure, wheat juice is forced to flow to the upper around the center tube of the heat exchanger by the helical runner. This can prevent fouling and blinding, and increase í‹thermosiphoníŒ action; and at the same time the wheat juice is only need to keep boiling to realize its circulation. So this can increase boiling efficiency, economize energy sources, and reduce consumption.

A lateral test flow arrangement for a test molecule is disclosed, comprising: a test strip for transporting an analyte away from a sampling region and towards an absorbing region, the test strip having therein and remote from the sampling region, a test region for functionalization with a molecule which binds to the test molecule or to a conjugate of the test molecule; a sensing test capacitor having electrodes extending across the test strip at least partially aligned with the test region and being physically isolated therefrom; a reference test capacitor having electrodes extending across the test strip and being physically isolated therefrom; and an electronic circuit configured to measure a time-dependant capacitance difference between the sensing test capacitor and the reference test capacitor. A method for carrying out that lateral flow tests is also disclosed, as are test systems and in particular pregnancy test systems

The invention proposes a clutch body (1) for a synchronization device having an annular base body (3), on which an outer cone (4) is integrally formed, the friction surface (19) of which comprises a plurality of axially extending grooves for oil distribution, wherein the outer cone (4) has a radially inside peripheral oil collection groove (6), and wherein the outer cone (4) has at least one recess (7) on the face side in the radial direction, the recess connecting the oil collection groove (6) to an associated axially extending groove for supplying oil. Furthermore, a synchronizer ring (8) of a synchronization device having an annular base body (10) is proposed, on which an inner cone (11) is integrally formed. According to the invention, predefined patterns are provided on the friction lining (9) and / or the inner cone (11). In addition, also a synchronization device comprising the clutch body (1) according to the invention and the synchronizer ring (8) according to the invention is proposed.

A mixed flow fan assembly uses induced reverse ambient air flow through the in-line motor enclosure for motor cooling, motor segregation from primary exhaust contamination, and augmentation of volumetric flow rate. Induced ambient airflow through openings in and / or around the base of the fan housing balances low pressure around the fan wheel and the inlet cone to inhibit primary exhaust recirculation and increase volumetric flow rate. Guide vanes downstream of the fan wheel are used to axially reorient radial and tangential velocity components of primary effluent flow. The geometry of the fan assembly is optimized to minimize exhaust gas recirculation and maximize overall efficiency.

An assembly for cooling an exhaust gas stream includes an outlet nozzle exposed to the exhaust gas stream. The outlet nozzle projects into an open end of an adjacent exhaust gas pipe so that a reduced pressure relative to the surrounding environment is produced in a suction region between the outlet nozzle and the exhaust gas pipe by flow of exhaust gas. Adjusting members vary the flow cross section of the outlet nozzle.

The invention relates to an axial fan for delivering cooling air, in particular for an internal combustion engine of a motor vehicle, comprising fan blades (13, 14, 15) which are fastened to a hub (12) and which have a pressure side and a suction side and a trailing edge (16, 17, 18) and a blade depth (t), on the pressure side of which fan blades is arranged a hub ramp (13a, 14a, 15a) which rises counter to the direction of rotation (D) of the axial fan (11), wherein the trailing edge (16, 17, 18) has an outer region (16a, 17a, 18a) situated radially outside the hub ramp (13a, 14a, 15a) and has an inner region (16b, 17b, 18b) situated radially within the hub ramp (13a, 14a, 15a).

A refrigeration system includes a compressor, a condenser, an expansion device, an evaporator, and an additional refrigerant vessel connected in a closed refrigerant loop. The additional refrigerant vessel is connected to the condenser at the high pressure side by a first valve and to the evaporator at a low pressure side by a second valve. A controller controls operation of the first valve and the second valve. Only one of the first valve and the second valve may be open at the same time. Refrigerant from the additional refrigerant vessel may be added to the closed refrigerant loop when the controller receives a low refrigerant level indication of in the evaporator. Refrigerant may also be removed from the closed refrigerant loop when the controller receives a high refrigerant level indication in the evaporator.

A coolant pump of an internal combustion engine, with a pump housing and a hollow shaft rotatably mounted therein. Coolant is delivered via an impeller wheel from a suction connection. The flow is controlled by a guide plate on the impeller wheel that is variably displaceable axially between two end positions. The guide plate is adjustable by a push rod actuator guided in the pump shaft. The actuator has a radial piston pump integrated within the coolant pump with an intake piston and a counterpiston guided in the pump shaft, that are inserted lying opposite one another and delimit a pressure space. The pistons are enclosed outside by a linearly displaceable control element guided in the pump housing. Adjustment of the control element takes place as a function of a rotary angle of the pump shaft via an actuator unit having an electrically operated actuating element and a linear freewheel.