62 results about "Balanced flow" patented technology

An exhaust gas cooler comprising an inlet chamber shaped to restrict exhaust gas flow to certain exhaust gas passages provided therein is disclosed. The inlet chamber may comprise a flow deflector which deflects a proportion of exhaust gas into, for example, the upper exhaust gas cooling passages thus restricting flow to lower exhaust gas cooling passages. In one embodiment the flow deflector is rotatably mounted and can also function as a bypass valve. Alternatively apertures provided within plates which can collectively define the inlet chamber may be of a differing size to restrict exhaust gas flow to certain exhaust gas cooling passages. A more balanced flow through the various exhaust gas cooling passages results increasing heat-exchange efficiency of the exhaust gas cooler.

There is described a modular electronic circuit wherein a series of electronics modules are penetrated by a passageway having an air-permeable wall, and cooling air is supplied to the passageway at a pressure above that obtaining in the modules, so that each module receives a supply of air passing out through the wall of the passageway. The passageway is constituted by a plurality of aligned tubular sleeves mounted in respective modules. There is also described a ventilation module including blowers to pressurize the passageway. A second passageway may be provided, at a reduced pressure, to extract air from the modules.

The invention discloses a traffic bottleneck identification method in a complicated traffic environment, mainly solving the problem of serous traffic congestion because the prior art cannot satisfy the current requirement for traffic. The implementation steps of the traffic bottleneck identification method are 1) using an undirected graph with weight to represent a complex network which abstracts a practical traffic network; 2) utilizing a tolerance flow allocation algorithm to perform balanced flow allocation for a user on the abstract network topological graph; 3) distributing a weight for each road segment in the network, wherein the weight is a zero flow impedance on each road segment; 4) according to the network after the weights are distributed, searching for a minimal spanning tree for the zero flow impedance; and 5) performing priority ranking for the degree of importance of the bottlenecks in the minimal spanning tree obtained from the step 5). The traffic bottleneck identification method in an urban traffic network can provide quantitative description for the degree of importance of the bottlenecks for a traffic management department to enable the traffic management department to accurately grasp the distribution characteristics of the traffic bottlenecks, reasonably plan the traffic network topology and match the traffic demand for each road segment of a road network with the traffic capacity, and can be applied to an integrated traffic dispersion system.

An injection manifold has a main runner provided with a supply inlet intermediate opposite ends of the runner. A number of branches intersect with the runner along its length so as to be disposed at unequal distances from the inlet. In order to achieve more simultaneous delivery, uniform fill rate, and identity of temperature of hot melt across all cavities of a multi-cavity set to achieve more uniform cooling of the preforms, restrictor pin assemblies are provided in association with certain of the branches to adjustably constrict the space available for melt flow from the runner into the branch. In a preferred form each restrictor pin assembly includes a pin aligned axially with the branch and passing transversely through the runner, the pin being adjustable between a fully extended, maximum constriction position in which the tip of the pin is located within the branch and a fully retracted, open position in which the tip is withdrawn out of the branch and is spaced below the opening of the branch.

The invention discloses an improved die assembly for the extrusion of thermoplastic resin cellulosic fiber composite profiles meant to minimize and substantially prevent the occurrence of melt fracture on the surface of the extruded composite profiles. Comprising the die assembly are a balanced flow passage having a heated compression zone, a heated transition zone, a heated converging die zone, a die land, which corresponds to at least a portion of the downstream end of the flow passage and is cooled to temperature below the melting point temperature of the thermoplastic resin. The invention also discloses a production process for composite profiles which include the steps of providing resin and fiber, producing a composite compound, processing the compound through an extrusion system, extruding the compound through the die assembly to form the desired profile, cooling the profile and cutting it to length. Also disclosed are products produced by the production process.

The invention discloses a flow divider for a nose, comprising a conical or cylindrical flow divider body, wherein a flow way set is arranged on the surface of the flow divider body and comprises a first flow way set formed by two flow ways in a bifurcation way, and the tail end of each flow way in the first flow way set is provided with a second flow way set formed by two flow ways in a bifurcation way. The depth of the flow ways are from deep to shallow so that the pressure can be fully released when a molten body is extruded. The two sets of flow ways have smooth transition, and the bottom sides of grooves are in a circular-arc shape. A circular arc-shaped grading ring is arranged between the second flow way set and an outlet of the flow divider body. The invention can reduce the material flowing resistance of a molten plastic polymer in the process of passing through the flow divider to a nose mouth mould so that the pressure is fully released, and therefore, the invention has the advantages of balanced flow, stable volume, uniform flowing speed and constant temperature, thereby ensuring the stability of product quality.

Based on principle of allocating IP messages in same service steam to same parallel processing unit and making load in each parallel processing unit can be balanced as best as the method can, the disclosed method allocates message steam entered to system to each parallel processing unit. Moreover, when load in each parallel processing unit is not balanced, the method adjusts allocation pattern of service steam among parallel processing units in order to realize balanced flow rate and ordered message. The system includes a sub module for sorting and identifying streams, a message allocation sub module and a measurement sub module. The invention possesses functions and advantages: balancing flow rate of IP message in parallel structured router, keeping order of service stream, distinction service and self adapting function, reducing average time delay and wobble of time delay, lowering number of time-out retransmission and rate of packet loss.

The invention relates to an emulsion ultrasonic emulsion breaking device, which comprises a cavity provided with an input port and an output port, wherein the input port and the output port are arranged on the cavity in an upper-lower matched pair or a lower-upper matched pair, namely the input port is arranged close to the lower end of the cavity, the corresponding output port is arranged close to the upper end of the cavity, and vice versa; and the wall of the cavity is provided with at least one ultrasonic wave generating device through flanges, and a tool head of the ultrasonic wave generating device has a candied gourd shape and is arranged in the cavity. Under the action of the gravity, the emulsion ultrasonic emulsion breaking device achieves balanced flow of an emulsion in an acting cavity, adopts an ultrasonic vibration system, makes full use of ultrasonic waves sent to the circumference from a lateral surface of a rod by the ultrasonic tool head immerged into the emulsion to enlarge the action zone of the ultrasonic waves in the cavity as large as possible, and improves the efficiency and the effect of ultrasonic emulsion breaking. The emulsion ultrasonic emulsion breaking device is adaptable to oil-water emulsion breaking separation.

An assembly of inflow control devices on a string along with isolation devices can be delivered into an existing or newly delivered screen assembly that requires inflow control for balanced flow from the formation. In newly delivered screen assemblies, any gravel packing that needs to be done can be accomplished without the presence of the inflow devices for faster circulation and improved gravel deposition. External annular barriers can also be delivered with an original screen assembly in a new well installation. The inflow devices and barriers can be of a variety of designs and the internal string can be removable if the barriers are retrievable to facilitate further drilling or completion below the screen assembly.

A flow control valve includes a body having a body bore oriented coaxially with a longitudinal axis of the body and a seat member extending into the bore. A valve member is slidably disposed in the bore and oriented coaxially with the longitudinal axis of the body. The valve member includes a non-circular geometrically shaped head having a bore. A drive adapter includes a head receiving cavity slidingly receiving the geometrically shaped head of the valve member and preventing axial rotation of the valve member. A stepper motor is connected to the drive adapter, the stepper motor incrementally rotating a shaft engaged with the bore of the valve member. First and second equal diameter pistons of the valve member provide pressure balanced valve member operating positions.

The invention provides a data frame scheduling method based on virtual links. The data frame scheduling method includes the following steps: 1, after a virtual link module receives data, a bandwidth allocation gap value allocated by a system to the corresponding virtual links is set; 2, waiting is carried out in FIFO, operation is carried out in a scheduling module, a jitter upper limit value distributed by the system is obtained, and the data are transmitted to an MAC within the range of the time value; each virtual link has an effective transmission identification, and a scheduler determines whether flow shaping is carried out on the virtual links or not according to the states of BAG timers corresponding to the effective transmission identifications to serve as a signal for controlling flow shaping and synchronous scheduling of the virtual links. By means of the data frame scheduling method based on the virtual links, it is guaranteed that during large-data-volume communication, a virtual path has the balanced flow and the rated bandwidth, and therefore the certainty and the effectiveness of information transmission time in the virtual path can be guaranteed.

The invention relates to a bidirectional balanced flow distributor. The bidirectional balanced flow distributor is characterized by comprising a flow splitting head, an inlet pipe, more than two connecting pipes and more than two resistance adjusting pipe, wherein an inlet end is arranged at one end of the flow splitting head while more than two outlet ends are arranged at the other end of the flow splitting head; each outlet end is respectively communicated with the inlet end; the outlet of the inlet pipe is communicated with the inlet end of the flow splitting head; the connecting pipes are as many as the outlet ends of the flow splitting head; each connecting pipe is respectively communicated with the outlet end of respective flow splitting head; the resistance adjusting pipes are as many as the connecting pipes; each resistance adjusting pipe is respectively arranged in respective connecting pipe and is fastened; the outer wall of each resistance adjusting pipe is matched with the inner wall of each connecting pipe in a sealing manner; each resistance adjusting pipe comprises more than two sections of short pipes with different inner pipe diameters; and the short pipes are arranged sequentially according to the size of the inner pipe diameters and are mutually connected in series to form a variable-diameter bidirectional throttling short pipe. The bidirectional balanced flow distributor has the advantages of not only realizing balanced distribution of a flow in each branch of an indoor heat exchanger when an air conditioner runs for refrigeration, but also realizing balanced distribution of the flow when the air conditioner runs for heating through a simple structure, and solving the problem of unbalanced distribution of the flow in each branch of the heat exchanger well when the conventional air conditioner runs for heating.

The invention relates to a method for generating a forwarding table, which comprises the following steps: using data packet flooding as basis, and backward generating the forwarding table; according to congestion degree of a backward port, adjusting waiting delay of a flooding packet in a node, so as to further achieve flow balance, and reduce change of forwarding table items; and through flooding a change event of network topology or shortening a flooding period of a guiding packet, reducing convergence time of the forwarding table. In brief, the method has the characteristics of simple realization, quick convergence and balanced flow.

The invention discloses a multi-nozzle balanced flow meter, comprising a multi-nozzle balanced circular plate (1), annular chambers (3), connection pipes (5) with flanges, a straight pipe section (8), pressure tapping pipes (9) and a sensor (10), wherein the multi-nozzle balanced circular plate (1) is provided with multiple nozzles in regular and uniform distribution, the annular chambers (3) are provided with positioning grooves and pressure tapping holes, the multi-nozzle balanced circular plate (1) is clamped between the two annular chambers (3) by the positioning grooves, the connection pipes (5) with the flanges are respectively located at the outer sides of the two annular chambers (3) and are connected into a whole by studs (6), the connection pipes (5) with the flanges are provided with the straight pipe section (8) by a connection flange, the pressure tapping pipes (9) are welded on the pressure tapping holes of the annular chambers (3), and the sensor (10) is welded on the pressure tapping pipes (9). The flow meter is wider in measurement range, higher in measurement accuracy, short in the straight pipe section, low in blocking possibility, more convenient to use, high in interchangeability with other flow meters, and longer in service life.

The invention provides a method for measuring heat consuming user heating load of a vertical single tube cocurrent type system and a heating metering distributing system of the vertical single tube cocurrent type system, and relates to a heating metering distributing system. The method for measuring heat consuming user heating load of the vertical single tube cocurrent type system and the heating metering distributing system of the vertical single tube cocurrent type system solve the problem that an existing vertical single tube cocurrent type system in buildings is difficult to remould. A flow controller locking balanced flow is placed on each stand pipe of each apartment, each stand pipe is provided with a water supply temperature sensor and a water returning temperature sensor, each user family is provided with a room temperature sensor, and a calorimeter is placed in a total building heating entry well. Heat dissipating capacity of each stand pipe and radiators at each floor and equivalent heat consumed by each heat consuming user are measured according to the measured water supply temperature and water returning temperature of each stand pipe and the measured room temperature in each user. The method for measuring the heat consuming user heating load of the vertical single tube cocurrent type system and the heating metering distributing system of the vertical single tube cocurrent type system are suitable for heat metering reformations of a vertical single tube cocurrent type system connected on the single side, a vertical single tube cocurrent type system connected on two sides without a crossing tube and a vertical single tube cocurrent type system connected on two sides with a crossing tube and radiators at the same user.

The invention relates to a heating system of a balance controlling method thereof, wherein the diagnosis measuring device is provided with multiple sensors, an analog signal preprocessing circuit, an analog to digital converter, a microprocessor and a digital display, which are connected in sequence, wherein the sensors includes a temperature sensor and any one or any two or all of a flow sensor, a pressure sensor and a differential pressure sensor; the balance controlling method adopts the diagnosis measuring device to detect the water inlet temperature and flow of each balanced heating branch in the heating system, the balanced flow rate of the corresponding balanced heating branch under the balanced heating is calculated according to the detected water inlet temperature, and the actual flow of the relevant balanced heating branch is regulated through a balanced valve to be the balanced flow rate of the balanced heating branch, thus balanced heating is realized. According to the invention, the phenomenon of nonuniform cold and hot is eliminated effectively, which is beneficial to improvement of the comfortability in houses and reduction of the heat energy loss.

A vertical electric cooker and smoker having lower air intake vents and upper exhaust vents which together create a more balanced flow and distribution of smoke and reduce the operating pressure of the system to allow a much larger load of wood chips to be used without refilling. A smoke box is also provided for holding and properly combusting the larger quantity of wood chips in an oxygen deficient environment. The smoke box has a false bottom and discharges the smoke through a circuitous exhaust flow path. Also, the electric heating elements of the cooking and smoking apparatus are contained in an assembly which provides an air gap beneath the smoker box and also shields the smoker box to prevent the wood chips in the smoker box from becoming overheated.

The invention discloses a balanced flow distribution model based BRT passenger trip benefit optimization method. The balanced flow allocation model based BRT passenger trip benefit optimization method comprises the steps that 1, a research object and a research range are selected, and relevant basic information is acquired; 2, the passenger demand characteristics are analyzed: a passenger classification concept meeting passenger OD demands is proposed, a distributable passenger flow and a non-distributable passenger flow are divided, and station passenger flow characteristics are analyzed; 3, a distribution principle is determined: the characteristics of different types of passengers are considered to determine the distribution principle; 4, optimization is performed under constraint conditions: passenger riding time cost, delay time cost, the congestion cost and relevant constraint conditions are considered to determine a target function, and a corresponding optimization algorithm is designed to output an optimal plane. The balanced flow distribution model based BRT passenger trip benefit optimization method fully considers the passenger riding time cost, delay waiting time cost and the total congestion cost based on the passenger trip characteristics, determines a passenger flow distribution scheme according to maximized passenger trip benefits and effectively improves the passenger trip satisfaction and the service quality of a BRT system.

A fluid pump assembly having a rotatable vane received with a pump housing with the vane holder rotatably carrying a plurality of vanes with each vane being biased into contact with a perimeter wall of the pump housing. A fluid exchange device utilizes the fluid pump assembly to exchange fluids in a system, such as a hydraulic system or cardiopulmonary system. The fluid exchange device may include a boost pump, a flow alignment device and a bypass valve.

A refrigerator, coolers (7, 9) for exclusively cooling freezing and refrigerating spaces respectively, and cool air circulating fans (8, 10) are provided, cooling is performed by alternately switching the refrigerant passage to the coolers for freezing and refrigeration by a passage switching valve (14). and when switching the refrigerant passage from the cooler (7) for freezing to the cooler (9) for refrigeration, the refrigerator is operated in a refrigeration cooling mode after operating both coolers in a simultaneous cooling mode. When operating the refrigerator in the simultaneous cooling mode, if a temperature difference between the refrigerant entrance and exit parts of the cooler for refrigeration is not more than a prescribed value, passage resistance to the cooler for refrigeration is made large, and if it is not less than the prescribed value, the passage resistance is made small. Abnormal noise is prevented from generating, by performing highly efficient cooling operation by reducing a cooling loss due to refrigerant delay caused when switching a passage, when switching operation from cooling operation of a freezing side circuit to a refrigeration side circuit by a refrigerant passage switching device such as a three way valve, and by supplying well-balanced flow of the refrigerant to respective coolers for freezing and refrigeration.

The invention discloses a message transmitting platform for realizing balanced flow transmission of a plurality of downstream nodes. The message transmitting platform is used for realizing balanced control on transmitted flow by adopting a region number segment routing strategy and transmitting messages to the downstream nodes of the regions corresponding to destination numbers according to the destination numbers. The method also discloses a message transmitting method for realizing balanced flow transmission of the plurality of downstream nodes. The method comprises the following steps of: realizing balanced control on the transmitted flow by adopting the region number segment routing strategy; and transmitting the messages to the downstream nodes of the regions corresponding to the destination numbers according to the destination numbers. The platform and the method can realize balanced flow transmission of the plurality of downstream nodes, so that requirements on cost reduction and full utilization of system resources can be met.

The invention relates to a flow splitting system between ditches in two sides in a water-rich tunnel provided with inclined shafts and a flow splitting method of the split flow system and aims to solve the problem that if too many inclined shafts are located in the same side, and much water is accumulated, so that water flow of drainage ditches, close to the inclined shaft side, in the tunnel is excessively large and water overflows. The flow splitting system comprises two contact culverts, four water accumulation pools and two flow splitting cabins; the two contact culverts are transversely formed below a ballast bed cushion layer of the tunnel, the two ends of each contact culvert are communicated with the corresponding water accumulation pool in the bottom of the corresponding inclined shaft, and one flow splitting cabin is arranged between every two water accumulation pools in the same side of the tunnel; side ditches are formed in the two sides of an overall ballast bed in the tunnel, and the flow splitting cabinets in the two sides of the tunnel are connected to the side ditches in the same side of the tunnel through corresponding pre-buried drain pipes respectively. According to the flow splitting system and the flow splitting method thereof, the communicating vessel principle is utilized to conduct balanced flow splitting on accumulated water in the inclined shafts, the situation that too much water is accumulated in the ditches in the same side and overflows is avoided, and tunnel operation safety is guaranteed.

Systems, methods and devices are described providing a selective hydraulic or electrically powered prime mover that is a (bi-directional power unit) PU system, including movement within a device or system used to compress and / or expand a fluid and provide fluid movement within the same device or system. The use of a (hydraulic power unit) HPU is involved and comprises at least a pump or other hydraulic fluid moving device often referred to as a “prime mover”, one or more first set of selective control valves delivering pressurized fluid to the device(s), and one or more second set of selective control valves returning unpressurized fluid from the device(s), a reservoir comprising a compensator tank, a port allowing for operation at ambient pressure, and a pressure measuring device measuring ambient pressure allowing for unbalanced flow to and from the mechanical (user) device as well as thermal expansion or compression.

An air conditioning system 120 for supplying air conditioned air to a passenger compartment 116 of a motor vehicle 110 is disclosed having left and right hand side distribution ducts 111L, 111R connected to a blower 122 by a common distribution chamber 121. The blower 122 is used to cause air to flow through the common distribution chamber 121 into the left and right hand side distribution ducts 111L, 111R via an air conditioning unit 123. Each of the distribution ducts 111L, 111R includes a distribution valve 130L, 130R used to vary the flow through the respective distribution duct 111L, 111R and through a dump duct 112L, 112R that exhausts air outside of a passenger compartment 116 of the motor vehicle 110. Each of the dump ducts 112L, 112R has the same resistance to flow as the respective distribution duct 111L, 111R to which it is connected. The flow from the distribution ducts 111L, 111R is adjusted by varying the proportion of air that flows through the cooperating dump duct 112L, 112R without affecting the flow from the other distribution duct 111R, 111L or requiring the blower speed to be altered. In one embodiment the dump ducts 112L, 112R exhaust air into a luggage compartment 117 of the motor vehicle 110.

The invention relates to a piston air leakage amount measurement system based on a balanced flow meter. The piston air leakage amount measurement system comprises the components of an air flow pipe (1), the balanced flow meter (2), a first pressure acquiring unit, a second pressure acquiring unit and a processor unit. The air flow pipe (1) is connected with a piston air leakage port. The balanced flow meter (2) is arranged in the air flow pipe (1). The first pressure acquiring unit and the second pressure acquiring unit are arranged at two sides of the balanced flow meter (2) and are communicated with the air flow pipe (1). The first pressure acquiring unit and the second pressure acquiring unit are connected with a processor unit. The first pressure acquiring unit and the second pressure acquiring unit acquire pressures in the air flow pipe (1) at two sides of the balanced flow meter (2) and transmits the pressure to a processor unit. The processor unit performs processing for acquiring volume flow and mass flow of the fluid. Compared with the prior art, the piston air leakage amount measurement system has advantages of simple structure, accurate measurement structure, etc.

An assembly of inflow control devices on a string along with isolation devices can be delivered into an existing or newly delivered screen assembly that requires inflow control for balanced flow from the formation. In newly delivered screen assemblies, any gravel packing that needs to be done can be accomplished without the presence of the inflow devices for faster circulation and improved gravel deposition. External annular barriers can also be delivered with an original screen assembly in a new well installation. The inflow devices and barriers can be of a variety of designs and the internal string can be removable if the barriers are retrievable to facilitate further drilling or completion below the screen assembly.