57results about How to "Reduce fluid flow rate" patented technology

A combustor apparatus is provided, comprising a mixing arrangement for mixing a carbonaceous fuel with enriched oxygen and a working fluid to form a fuel mixture. A combustion chamber is at least partially defined by a transpiration member. The transpiration member is at least partially surrounded by a pressure containment member. The combustion chamber has opposed inlet and outlet portions. The inlet portion of the combustion chamber is configured to receive the fuel mixture for the fuel mixture to be combusted at a combustion temperature. The combustion chamber is further configured to direct the resulting combustion product toward the outlet portion. The transpiration member directs a transpiration substance therethrough toward the combustion chamber for buffering interaction between the combustion product and the transpiration member. Associated systems, apparatuses, and methods are also provided.

The pollution control system includes a controller coupled to a sensor monitoring an operational characteristic of a combustion engine, such as engine RPM. A PCV valve having an inlet and an outlet is adapted to vent blow-by gas out from the combustion engine. A fluid regulator associated with the PCV valve and responsive to the controller selectively modulates engine vacuum pressure to adjustably increase or decrease a fluid flow rate of blow-by gas venting from the combustion engine. The controller selectively adjustably positions the fluid regulator to vary the degree of vacuum pressure to optimize the recycling of blow-by gases.

A combustor apparatus is provided, comprising a mixing arrangement for mixing a carbonaceous fuel with enriched oxygen and a working fluid to form a fuel mixture. A combustion chamber is at least partially defined by a porous perimetric transpiration member, at least partially surrounded by a pressure containment member. The combustion chamber has longitudinally spaced apart inlet and outlet portions. The fuel mixture is received by the inlet portion for combustion within the combustion chamber at a combustion temperature to form a combustion product. The combustion chamber directs the combustion product longitudinally toward the outlet portion. The transpiration member is configured to substantially uniformly direct a transpiration substance therethrough toward the combustion chamber, such that the transpiration substance is directed to flow helically about the perimeter and longitudinally between the inlet and outlet portions, for buffering interaction between the combustion product and the transpiration member. Associated systems are also provided.

A combustor apparatus is provided, comprising a mixing arrangement for mixing a carbonaceous fuel with enriched oxygen and a working fluid to form a fuel mixture. A combustion chamber is at least partially defined by a porous perimetric transpiration member, at least partially surrounded by a pressure containment member. The combustion chamber has longitudinally spaced apart inlet and outlet portions. The fuel mixture is received by the inlet portion for combustion within the combustion chamber at a combustion temperature to form a combustion product. The combustion chamber further directs the combustion product longitudinally toward the outlet portion. The porous transpiration member is configured to substantially uniformly direct a transpiration substance laterally therethrough, about the perimeter thereof defining the combustion chamber and longitudinally between the inlet and outlet portions, toward the combustion chamber for buffering interaction between the combustion product and the porous transpiration member. Associated systems are also provided.

An amusement attraction fluid control system comprises a fluid source, at least one pump, at least one fluid feature, a plurality of conduits interconnecting the fluid source and the at least one pump to the at least one fluid feature, and a controller; wherein the at least one pump is configured to pump fluid through the conduits to the at least one fluid feature. The controller is adapted to control the at least one pump to deliver fluid to each respective fluid feature.

Disclosed herein is a two-way actuator. The actuator includes, a tubular, movably positionable within a structure between at least a first position and a second position, the tubular having a first density selected such that buoyancy forces urge the tubular toward the first position in response to submersion of the tubular within a fluid having a second density that is greater than the first density, and at least one flow resistor disposed at the tubular configured to urge the tubular toward the second position in response to fluid flow interacting with the at least one flow resistor.

The invention discloses an axial flow type flow quantity control valve with dual filtering functions, which solves the technical problems that the control valve of the prior art has poor performance and has no filtering function. The control valve comprises a valve body and a valve frame, wherein the valve frame is fixedly arranged in the valve body and is used for adjusting the flow quantity of the control valve, the valve body comprises a left valve body and a right valve body, the left valve body is provided with a flow inlet, the right valve body is provided with a flow outlet, the interior of the left valve body is provided with a flow disturbance cover, the flow disturbance cover is positioned between the flow inlet and the valve frame, one side, facing the flow disturbance cover, of the valve frame is provided with filtering holes, and the left valve body is provided with a blowoff port which can be opened and closed. When the fluid flowing into the valve body via the flow inlet of the left valve body flows through the flow disturbance cover, the speed reduction function is realized, and the large impurities in the fluid are settled under the action of gravity. When the fluid flows through the valve frame, the secondary filtering function is realized by the filtering holes, and the fine impurities are filtered. The impurities are settled in the filtering process, and after the blowoff port is opened, the impurities in the valve body are removed under the action of the water flow pressure. The filtering device is directly arranged in the valve body, and the structure of a flow passage is simplified.

The present invention relates generally to the processing of fluids and/or their carriers. Carriers may comprise pipes, tubes and the like or reservoirs for the distribution and/or storage of fluids. In one form, the present invention relates to a method and apparatus that is suitable for use in the treatment of various fluids, such as water, by introducing at least one chemically active metal into the water and its carriers for disinfection of the water in a controlled manner. The invention also relates to a biasing means for displacement of an electrode arrangement to allow for the introduction of ions into a fluid at a controlled or easily monitored rate that is commensurate with the amount of fluid flow.

Apparatus, compositions, and methods for creating polymer plugs in wellbores and/or for enhancing wellbore stability, comprising: a flow control device such as a blowout preventer on a wellbore; a control fluid aperture fluidly connected with the wellbore for introducing a control fluid and/or a plug-forming agent such as a polymer, monomer, resinous, and/or crosslinkable material, through a control fluid aperture and into the primary throughbore while wellbore blowout fluid flows through the wellbore; and optionally, a weighted fluid aperture positioned in the wellbore conduit below the control fluid aperture for introducing a weighted fluid or another fluid or plug-forming agent into the wellbore. Exemplary plug-forming agents include dicyclopentadiene and norborene, and exemplary catalysts include Grubbs catalysts. The polymer plugs also may be utilized to hydraulic sealing within wellbores, such as during P&A and drilling operations for providing wellbore stability.

The invention discloses a hydrocyclone with a novel outlet structure. The hydrocyclone comprises a feed pipe, a cylindrical section, a conical section, an underflow pipe, an overflow pipe, a sleeve and a solid cylinder body, wherein the sleeve is fixed at the inner part of the lower end of the overflow pipe through a thin sheet, the hydrocyclone adopts the design of a short cone and a large-diameter underflow port, and a solid cylinder is inserted into the center of the underflow pipe, so that the area of the annular space underflow port and the area of the underflow port of the common hydrocyclone having the same cone angle are the same. Compared with the common hydrocyclone, the length of the conical section is reduced, the occupied space of the hydrocyclone is saved, and in addition, due to the design of the thin sheet sleeve at the lower end of the overflow pipe of the hydrocyclone and the large-diameter underflow port, the pressure drop is greatly reduced without reducing the separating efficiency.

A casing removal system includes a flow diversion valve. The flow diversion valve includes a flow switch that engages an upper end of an inner casing. When the flow switch engages the upper end of the inner casing, the flow diversion valve opens and at least a portion of the fluid flow through the casing removal system exhausts to the annulus. The remaining fluid flow below the flow diversion valve is insufficient to operate a mud motor that drives a casing cutter. In other embodiments, when the flow switch is not engaged with the inner wall of casing, the flow diversion valve prevents fluid flow to components that are downhole of the valve and when the flow switch is engaged with the inner wall of casing, the flow diversion valve allows for fluid flow to components that are downhole of the valve.

The present disclosure relates to a pressure overshooting prevention system for an electronic hydraulic pump in a hydraulic system, in which a flow rate command is added (+), a discharge flow rate is subtracted (−), a displacement flow rate (Delta Q) is calculated, a first pressure command corresponding to the displacement flow rate (Delta Q) is generated, a working fluid pressure value corresponding to the discharge flow rate is generated, a limit pressure command is generated to limit an increasing gradient of the working fluid pressure value, a stall is determined based on a first rate of change of the flow rate command, and a second rate of change of the discharge flow rate, and the limit pressure command is set to a second pressure command when the stall is determined, and a small value of the first pressure command and the second pressure command is selected as a final pressure command so as to control an electronic proportional control valve, thereby reducing overshooting of the electronic hydraulic pump.

A solenoid operated valve constructed in accordance with the teachings herein utilizes multiple solenoids which each actuate their own respective valve member. There is a one-to-one relationship of valve members to solenoids. This same one-to-one relationship exists between the valve members and a plurality of passages arranged along a flow path through the valve. Each solenoid is operable to independently move its associated valve member from a closed position, where the valve member is seated against a partition wall defining the passage to entirely prevent fluid flow through its associated passage (or only allow for a controlled leakage flow), and an open position, where the valve member allows fluid flow through its associated passage.

The method pertains to the oil and gas industry and can be used in the development of producing formations. A producing string (6) together with a sealing device (7) are lowered into a well (1) and the well (1) is divided into an upper cavity (8) and a lower cavity (9) with the aid of said sealing device (7) to establish a hydraulic connection between the well opening and the upper cavity and between the lower cavity and the producing formation, respectively. The installation of equipment (10) and a check valve is carried out stepwise. A washer fluid (4) is replaced by a washer fluid (15). The equipment (10) is passed through the sealing device (7) and the hydraulic connection between the well opening, the lower cavity and the producing formation is re-established along the annular channel. The well (1) is deepened using the equipment (10) until an inflow of formation fluids occurs, the differential pressure in the hydraulic system “well opening—producing formation” being adjusted using the check valve and a blowout preventer (3). The equipment (10) is withdrawn from the lower cavity (9) upon completion of deepening, the device (7) is closed during separation of the cavity (9) from the cavity (8) and cutting-off the hydraulic connection between the producing formation and the upper cavity. The technical solution increases the efficiency and quality of technical operations and prevents the undesired inflow of formation fluids.

The invention discloses an abrasion-resistant flow guide device which comprises a suction flange, a buffer channel and a first rectangular flange connected with the inlet of a heat exchanger, wherein the suction flange, the buffer channel and the first rectangular flange are sequentially connected with a system pipeline; the buffer channel comprises a Z-shaped buffer distribution channel; and at least a flow guide vane is arranged in the outlet of the Z-shaped buffer distribution channel. In the abrasion-resistant flow guide device disclosed by the invention, the buffer distribution channel is in a Z shape, thus the flowing angel change of the solid-liquid phase fluid in the Z-shaped buffer distribution channel is great and the buffer effect is good. Furthermore, the effective flow space in the Z-shaped buffer distribution channel is large and the flow velocity of the fluid when the flow is the same is low, thereby effectively reducing the partial abrasion of the plate beam of a heat exchanger by a solid-liquid phase flow.

The invention discloses a condenser flow path structure, a condenser flow path control method and an air conditioner, and relates to the field of air conditioners. The condenser flow path structure comprises a first flow path, a second flow path and a four-way valve assembly a, the four-way valve assembly a comprises a first valve pipe, a second valve pipe, a third valve pipe and a fourth valve pipe, and the first valve pipe is in communication with the third valve pipe; a first control valve is arranged on the first valve pipe, the second valve pipe is in communication with the fourth valve pipe, and a second control valve is arranged on the fourth valve pipe; the first valve pipe is in communication with the fourth valve pipe through a first connecting pipe, a third control valve is arranged on the first connecting pipe, the first valve pipe and the second valve pipe communicate with the first flow path, and the third valve pipe and the fourth valve pipe communicate with the second flow path. The number of branches of an internal pipeline of a condenser and flow of each branch are controlled through a control valve, so that the temperature value of each branch is balanced, and the heat exchange performance is improved.