475 results about "Flow diversion" patented technology

Described herein is microfluidic device for joining fluids and a related method for doing the same. The device according to the present invention includes a microfluidic junction, an outlet channel, and a plurality of circuit units. A microfluidic junction is an area for converging multiple fluids. An outlet channel is capable of receiving fluid from the microfluidic junction. An outlet channel includes a first end connected with the microfluidic junction, a second end connected with a waste reservoir, and an analysis region positioned between the first end and the second end of the outlet channel. The device also includes a plurality of circuit units. Each circuit unit includes a source channel with a first end capable of receiving sample fluid and a second end connected with the microfluidic junction; a branch channel connected with the source channel at an intersection; and a flow diversion system capable of differentially directing fluid flowing through a source channel either into the microfluidic junction or into a branch channel.

Implantable devices for placement at a cavity or opening such as an aneurysm are disclosed. The implantable devices, in a deployed condition, have a generally inverted U-shaped profile with a curved or angled framework support structure sized and configured for placement in proximity to tissue surrounding the opening and anchoring legs extending proximally from the framework structure sized and configured to contact the wall of a neighboring lumen at opposed locations. Occlusive and semi-occlusive membranes may be associated with the framework support structure and deployed over the opening to provide exclusion of the opening and flow diversion. Proximal anchoring segments providing additional lumen wall surface area contact for the implantable device following deployment may be incorporated.

An improved blast liner assembly for use in gravel packing or fracturing operations wherein solid materials, in slurry form, are flowed out of the flowbore of a working tool and into the annulus of a wellbore. The blast liner is a cylindrical member that provides a protective shield to the interior retaining section. An angular flow diverter is provided within the blast liner and has a plurality of angled flow diversion channels formed into the inner surface of the blast liner body. Flow of slurry through the blast liner will cause the blast liner to rotate within the retaining section due to the reaction forces imparted to the blast liner from diverting the slurry flow. In this manner, the impingement area presented by the blast liner is increased, and the life of the blast liner extended. The blast liner may also be caused to move axially within the retaining section to further increase the impingement area.

Microstructured optical fibre is fabricated using extrusion. The main design of optical fibre has a core suspended in an outer wall by a plurality of struts. A specially designed extruder die is used which comprises a central feed channel, flow diversion channels arranged to divert material radially outwards into a welding chamber formed within the die, a core forming conduit arranged to receive material by direct onward passage from the central feed channel, and a nozzle having an outer part in flow communication with the welding chamber and an inner part in flow communication with the core forming conduit, to respectively define an outer wall and core of the preform. With this design a relatively thick outer wall can be combined with thin struts (to ensure extinction of the optical mode field) and a core of any desired diameter or other thickness dimension in the case of non-circular cores. As well as glass, the extrusion process is suitable for use with polymers. The microstructured optical fibre is considered to have many potential device applications, in particular for non-linear devices, lasers and amplifiers.

Implantable devices for placement at a cavity or opening such as an aneurysm are disclosed. The implantable devices, in a deployed condition, have a generally inverted U-shaped profile with a curved or angled framework support structure sized and configured for placement in proximity to tissue surrounding the opening and anchoring legs extending proximally from the framework structure sized and configured to contact the wall of a neighboring lumen at opposed locations. Occlusive and semi-occlusive membranes may be associated with the framework support structure and deployed over the opening to provide exclusion of the opening and flow diversion. Proximal anchoring segments providing additional lumen wall surface area contact for the implantable device following deployment may be incorporated.

A positioning tool for moving an element in a flow path of a down hole system without actuating a pressure actuated device in the system. The positioning device includes a choke for restricting flow of fluid between the positioning device and the down hole system, a flow diversion path from the upper end of the positioning device to a lower end of the positioning device, and a valve allowing fluid to flow through the diversion path when the choke is proximate the pressure actuated device and blocking flow of through the diversion path when the choke is displaced from the pressure actuated device. The down hole system may be a flapper type fluid loss device with a pressure actuated opening prop.

The invention provides a floor type air conditioner which comprises a shell, wherein the rear portion of the shell is provided with an air inlet and the front portion of the shell is provided with three air outlets. The floor type air conditioner further comprises a heat exchanger and two cross-flow wind wheels. Airflows flowing in from the air inlet are divided into first airflows and second airflows, the first airflows are divided into a third airflow and a fourth airflow after passing through the corresponding cross-flow wind wheel, and the second airflows are divided into a fifth airflow and a sixth airflow after passing through the corresponding cross-flow wind wheel. The floor type air conditioner further comprises a first flow diversion part and a second flow diversion part, wherein the first flow diversion part is located in the shell and connected between the second air outlet and the first air outlet in a pivoted mode so as to block the third airflow and the fourth airflow in a rotary switching mode, and the second flow diversion part is located in the shell and connected between the third air outlet and the second air outlet in a pivoted mode so as to block the fifth airflow and the sixth airflow in a rotary switching mode. The multi-dimensional air outlet situations that air flows out from two sides, air flows out from the middle and air flows out from three directions are achieved through the two flow diversion parts. The invention further provides an air supply control method of the floor type air conditioner.

The invention discloses a dynamic demonomerization and defoaming method and a dynamic demonomerization and defoaming device for carbon fiber spinning solution. An ultrasonic generator is arranged in the centre of a defoaming kettle; an air guide cylinder and a flow guide disk are arranged on a flow diversion and air guide cover; and the defoaming effect is improved to realize low-temperature high-vacuum demonomerization and defoaming of the spinning solution with different relative molecular masses and different charging rates by the processes of heating a demonomerization and defoaming device, continuous feeding, gravity demonomerization and defoaming, film stretch defoaming and ultrasound-assisted defoaming and controlling the defoaming temperature, the vacuum degree and the rotation speed of a demonomerization tower. The spinning solution obtained by the method has the residual monomer content of less than 0.1 percent, less than 5 small bubbles with diameter of less than 0.03mm and solvent loss of less than 5 percent during the demonomerization and defoaming. The method and the device can realize continuous dynamic demonomerization and defoaming at a low temperature under vacuum condition and has the characteristics of simple and practical process and good defoaming effect.

A beverage container lid assembly and insert enable a user to selectively control contained beverage movements when outfitted upon a beverage container. The lid assemblies include a primary lid form having a primary beverage outlet and a circular transverse cross-section and a secondary lid attachment cooperably engaged with the primary lid form for providing certain beverage flow diversion structure. The secondary lid attachment is rotatable relative to the primary lid form about a lid axis of rotation. The lid assembly may be attached to a beverage container such that the user may manually rotate the secondary lid attachment relative to the primary lid form for manually and selectively positioning the beverage flow diversion structure relative to the primary beverage outlet. The container insert includes a container-engaging first portion and a beverage-damping second portion. The second portion extends inwardly relative to the first portion for deflecting upwardly directed beverage.

The invention provides a hydraulic hammer rod type impact drilling tool and belongs to the field of geological exploration engineering and oil drilling. The technical scheme of the hydraulic hammer rod type impact drilling tool includes that the hydraulic hammer rod type impact drilling tool is composed of a turbine driving device, a rotary valve flow distribution mechanism, a impact device, an end cap, a punch hammer, an outer cylinder, an inner cylinder, sealing rings, a flow diversion disk, a casing and drill bit. The turbine driving device comprises a fixed shaft, an upper deep groove ball bearing, a turbine disk, turbine blades, a pressing disk, a lower deep groove ball bearing and a thrust bearing, the rotary valve flow distribution mechanism comprises an upper valve plate and a lower valve plate, and the impact device comprises an impact base, a spring and a hammer rod. When the hydraulic hammer rod type impact drilling tool is operated, the turbine driving device drives the upper valve plate to rotate, an input hole is communicated with a first overflowing hole and a second overflowing hole of the lower valve plate alternately so as to enable the punch hammer to reciprocate in the inner cylinder to achieve circulation impact on an impact base, and impact energy is transmitted to the hammer rod for rock breaking. The hydraulic hammer rod type impact drilling tool can form high frequency axial impact force for assisting rock breaking, facilitates prolonging of service life of the drill bit, improves mechanical drilling speed, and is particularly suitable for hard formation drilling.

The invention discloses a method for dynamic passenger flow OD estimation of an urban mass transit network. The method comprises: on the basis of historical passenger flow data, with time interval set, a one-way-ticket passenger flow OD matrix with poor passenger flow spatial-temporal distribution stability is improved by using a moving average method and an improved passenger flow OD distribution matrix is generated; a passenger flow diversion matrix is calculated; a dynamic flow relationship between an OD flow and a passenger flow going in or out of a station is constructed by combining a travel time distribution rule of the OD flow; according to the dynamic flow relationship and an in-out passenger flow information uploaded in real time, an OD dynamic estimation state space model is established; the model is solved by using a Kalman filter method; an OD estimation result is corrected by using a standardization method and an optimal estimation value is obtained; and effectiveness of the method is also checked. According to the method disclosed by the invention, statistics is carried out based on in-out transaction data uploaded in real time and historical passenger flow data and a Kalman-filter-based state space model is established, so that real-time passenger flow demand distribution structure can be estimated and a data support can be provided for dynamic passenger flow management of the rail transit enterprise.

A shower douching system is shown. The shower douching system comprises; a solution reservoir, a shower passageway coupled to the solution reservoir, and a controllable shower douche coupled to the shower passageway and coupled to the solution reservoir for controlling a shower fluid flow diversion. The controllable shower douche comprises a valve coupled to a shower bypass channel for controlling the shower fluid flow diversion, and further comprises an eductor connected downstream of the shower bypass channel for creating a low pressure condition within the eductor. The eductor is coupled to a solution suction channel extending substantially within the solution reservoir, and a douche fluid outlet channel is coupled to the valve.

A system for maintaining heat sink temperature uniformity in a system with pairs of substantially similar components mounted on a surface in close proximity and substantially aligned with an air flow, where the air flow is divided into a plurality of air flows by dividers radiating upward from the heat sink bases' top surfaces and containing cooling fins on the heat sink on only one side of the divider, where each airflow is diverted past the cooling fins of at least one of the heat sinks without significant pre-heating and through the cooling fins of at least one of the other heat sinks.

A gun flash hider, formed to include a first expansion chamber, a first flow divider, a plurality of first exhaust passages, an exhaust head, a second expansion chamber, a plurality of second exhaust passages and a second flow divider, whereby high-temperature high-pressure gas produced after firing a bullet undergoes two expansion decompressions and two flow diversion decompressions, through which the gas is sequentially discharged from the first exhaust passages and the second exhaust passages, thereby substantially reducing sonic boom volume, amount of flame and recoil force produced when firing the bullet, and increasing stability and shooting accuracy when using a gun.

A gun flash hider, formed to include a first expansion chamber, a first flow divider, a plurality of first exhaust passages, an exhaust head, a second expansion chamber, a plurality of second exhaust passages and a second flow divider, whereby high-temperature high-pressure gas produced after firing a bullet undergoes two expansion decompressions and two flow diversion decompressions, through which the gas is sequentially discharged from the first exhaust passages and the second exhaust passages, thereby substantially reducing sonic boom volume, amount of flame and recoil force produced when firing the bullet, and increasing stability and shooting accuracy when using a gun.

A fluid isolation valve having a valve body with a first fluid flow port, a second fluid flow port and a fluid drain port with a valve in the fluid drain port. The valve body also defines a fluid flow channel, a drain flow channel and a valve portion, wherein the valve portion is disposed in the valve body to be communicated with the first fluid flow port, the second fluid flow port and the fluid drain port A flow diversion device is also provided and is disposed within the valve portion. The flow diversion device is configurable between a first configuration and a second configuration, such that when the flow diversion device is in the first configuration the first fluid flow port is communicated with the second fluid flow port Consequently, when the flow diversion device is in the second configuration the first fluid flow port is communicated with the fluid drain port. The fluid flow can be decrease or stop by use of the valve within the fluid drain port.

The invention provides a smoke cartridge atomizer with a T-shaped air path. The smoke cartridge atomizer with the T-shaped air path comprises a tobacco tar bin, an atomizing cavity and a smoke channel, wherein the smoke channel is of a T-shaped structure and comprises a first air channel and a second air channel which are vertical to each other, on end of the first air channel communicates with the atomizing cavity, the other end of the first air channel communicates with the middle of the second air channel, and the second air channel communicates with an air suction hole of the smoke cartridge atomizer with the T-shaped air path. The T-shaped air path is designed at the tail end of a main air channel of the traditional electronic cigarette product, flow diversion is realized with the T-shaped top end, the top end of the T-shaped air path blocks condensed oil drops flying in the smoking process, after steam smoke impacts the second air channel of the T-shaped air path, the mixing is uniform, the mouthfeel is good, further, the technical problem that in the use process of the smoke cartridge atomizer only with the linear type traditional air path in the related technology, condensed oil can be sucked into the mouth, and thus the mouthfeel is lowered, is solved.

Implantable devices for placement at a cavity or opening such as an aneurysm are disclosed. The implantable devices, in a deployed condition, have a generally inverted U-shaped profile with a curved or angled framework support structure sized and configured for placement in proximity to tissue surrounding the opening and anchoring legs extending proximally from the framework structure sized and configured to contact the wall of a neighboring lumen at opposed locations. Occlusive and semi-occlusive membranes may be associated with the framework support structure and deployed over the opening to provide exclusion of the opening and flow diversion. Proximal anchoring segments providing additional lumen wall surface area contact for the implantable device following deployment may be incorporated.

A cooling system includes a first conduit positioned within a cavity and extends from a radially inner casing aperture to a radially outer casing aperture. The cooling system also includes a second conduit coupled in flow communication with the first conduit and extending into the cavity. The cooling system further includes at least one valve positioned within the first conduit and the second conduit. The at least one valve and the first conduit are configured to channel a first fluid from the radially inner casing aperture to the radially outer casing aperture during a first mode of operation. The at least one valve, the second conduit, and the first conduit are configured to channel a second fluid from the radially outer casing aperture to the cavity during a second mode of operation.

An air flow diversion device for dissipating heat from electronic components, including: an air flow diversion member of predetermined height, wherein two or more left and right airway holes are defined in left and right side walls of the flow diversion member respectively, and a rear side of the flow diversion member is an open space, a connecting portion having a connecting hole is configured on the air flow diversion member, and the connecting portion can be fixedly bolted to a circuit board. An airflow is caused to follow a specific direction and diverted through the left and right airway holes into the open space, thereby enabling a relatively large amount of airflow having relatively high velocity to blow against circumferential surfaces of specific electronic components, thus achieving an efficient reduction in the working temperature of the specific electronic components.

A fluid isolation valve having a valve body with a first fluid flow port, a second fluid flow port and a fluid drain port with a valve in the fluid drain port. The valve body also defines a fluid flow channel, a drain flow channel and a valve portion, wherein the valve portion is disposed in the valve body to be communicated with the first fluid flow port, the second fluid flow port and the fluid drain port. A flow diversion device is also provided and is disposed within the valve portion. The flow diversion device is configurable between a first configuration and a second configuration, such that when the flow diversion device is in the first configuration the first fluid flow port is communicated with the second fluid flow port. Consequently, when the flow diversion device is in the second configuration the first fluid flow port is communicated with the fluid drain port. The fluid flow can be decrease or stop by use of the valve within the fluid drain port.

The invention relates to a large-diameter steel sleeve heat exchange device capable of extracting the geothermal energy, and belongs to the technical field of heating ventilation air conditioners capable of saving energy and reducing emission. The device mainly includes a ground source heat exchange well composed of a steel sleeve with the bottom being sealed, a PE inner tube, a filtering device, an impurity precipitation groove, a heat insulating plate and a water circulating flow diversion device. According to the connection relation, the steel sleeve is inserted into the ground, the ground source heat pump heat source side returned water is communicated with an upper end opening of the steel sleeve, and the PE inner tube is arranged in the steel sleeve; the filtering device is fixed inside the bottommost end of the PE inner tube; the impurity precipitation groove is formed in the bottommost end of the steel sleeve well; the heat insulating plate wraps the PE inner tube; the water circulating flow diversion device is arranged at a water inlet of the well and connected to the PE inner tube. By means of the large-diameter steel sleeve heat exchange device capable of extracting the geothermal energy, the problem that a soil source heat pump system is large in occupied space is solved, and the heat exchange amount of a single-opening ground source well is greatly increased.

An improved blast liner assembly for use in gravel packing or fracturing operations wherein solid materials, in slurry form, are flowed out of the flowbore of a working tool and into the annulus of a wellbore. The blast liner is a cylindrical member that provides a protective shield to the interior retaining section. An angular flow diverter is provided within the blast liner and has a plurality of angled flow diversion channels formed into the inner surface of the blast liner body. Flow of slurry through the blast liner will cause the blast liner to rotate within the retaining section due to the reaction forces imparted to the blast liner from diverting the slurry flow. In this manner, the impingement area presented by the blast liner is increased, and the life of the blast liner extended. The blast liner may also be caused to move axially within the retaining section to further increase the impingement area.

The invention relates to a dual-function explosive pre-crosslinking gel particle for profile control and deep fluid flow diversion. The pre-crosslinking gel particle for the profile control and the deep fluid flow diversion provided in the invention is a gel particle obtained by polymerizing and crosslinking a monomer, a stable crosslinking agent and an unstable crosslinking agent by an initiator to obtain a body gel, drying the gel and grinding the gel. The gel particle has a core-shell structure, wherein the stable crosslinking agent is polymerized and crosslinked with parts of the monomer to form the stable crosslinking core, and the unstable crosslinking agent is polymerized and crosslinked with parts of the monomer at the outside of the stable crosslinking gel core to form the unstable crosslinking gel coating shell. When the gel particle provided in the invention is applied to the oil reservoir exploitation, the dual effect of the profile control and the deep fluid flow diversion can be realized, and concentrations of the stable crosslinking agent and the unstable crosslinking agent can be adjusted to control the explosion time of the pre-crosslinking gel particle, so a purpose for controlling the working period can be reached.

The invention discloses a centrifugal stirring device for artificial butter. The device includes a tank body, the center of the top of the tank body is provided with a feeding pipe, a driven gear on the feeding pipe is in gear engagement with a driving gear installed on an output shaft of a second driving motor, an electric heating strip is installed on an installation shaft inside the feeding pipe, a centrifugal material disk is arranged on the upper portion of the inner side of the tank body, and an annular baffle is arranged on an outer ring on the top of the centrifugal material disk; a plurality of flow diversion trenches are formed in the center of the top portion of the centrifugal material disk in a radiation mode, multiple discharging holes are formed in the outer ring of the centrifugal material disk, the feeding pipe is fixedly connected with the annular baffle by a plurality of oblique supporting rods, an output shaft of a first driving motor on the bottom of the tank body is connected with the stirring shaft arranged in the tank body, and a stirring mechanism is arranged on the stirring shaft inside the tank body. The centrifugal stirring device for the artificial butter is novel in structure and reasonable in design, the flow directions of raw materials are more diversified during stirring, and the processing effect and efficiency are improved.

An erosion resistant crossover which may be used in fracturing and / or gravel packing. In one aspect, a fluid delivery system for use in a subterranean well may comprise a fluid discharge apparatus including a flow passage, at least one discharge opening for discharging fluid from the flow passage to an exterior of the apparatus, and a flow diversion device operative to more evenly distribute flow through the opening by diverting fluid flow through the opening in a more upstream direction relative to fluid flow through the passage.

A fluid isolation valve having a valve body with a first fluid flow port, a second fluid flow port and a fluid drain port with a valve in the fluid drain port. The valve body also defines a fluid flow channel, a drain flow channel and a valve portion, wherein the valve portion is disposed in the valve body to be communicated with the first fluid flow port, the second fluid flow port and the fluid drain port. A flow diversion device is also provided and is disposed within the valve portion. The flow diversion device is configurable between a first configuration and a second configuration, such that when the flow diversion device is in the first configuration the first fluid flow port is communicated with the second fluid flow port. Consequently, when the flow diversion device is in the second configuration the first fluid flow port is communicated with the fluid drain port. The fluid flow can be decrease or stop by use of the valve within the fluid drain port.

The flow meter is equipped with first and second flow paths, provided in parallel and through which flows fluid having flowed through and being diverted from a main flow path, the flow diversion ratio among the first and second flow paths changing passively in accordance with the flow rate of fluid through the main flow path, and a flow rate sensor provided on at least one of the first and second flow paths. The first and second flow paths are formed, for example, as flow paths having different flow path cross-sectional areas, or alternatively are formed from mesh elements provided with mesh-free areas on a portion thereof. Alternatively, one of the either the first or second flow path is realized with a paddle mechanism incorporated therein.

A fluid isolation valve having a valve body with a first fluid flow port, a second fluid flow port and a fluid drain port with a valve in the fluid drain port. The valve body also defines a fluid flow channel, a drain flow channel and a valve portion, wherein the valve portion is disposed in the valve body to be communicated with the first fluid flow port, the second fluid flow port and the fluid drain port. A flow diversion device is also provided and is disposed within the valve portion. The flow diversion device is configurable between a first configuration and a second configuration, such that when the flow diversion device is in the first configuration the first fluid flow port is communicated with the second fluid flow port. Consequently, when the flow diversion device is in the second configuration the first fluid flow port is communicated with the fluid drain port. The fluid flow can be decrease or stop by use of the valve within the fluid drain port.