39results about How to "Increase liquid pressure" patented technology

A closure is removably attachable to a container and comprises a dispensing orifice and a valve element that is biased closed over the orifice. By inverting the container so that a liquid contents of the container exerts pressure on the valve element, or by squeezing the container causing the liquid contents to exert pressure on the valve element, the valve element opens the dispensing orifice allowing the liquid contents to be dispensed from the container. On removing the pressure from the valve element, the valve element resiliently closes the dispensing orifice.

An attachment is mountable on a carriage in place of a liquid container that contains liquid and that is mounted on the carriage having a liquid jet head for jetting liquid, so that the attachment can supply liquid introduced from outside to the liquid jet head. The attachment has a pressure control means provided in a flow passage which is formed in an attachment body and through which the liquid introduced from the outside is supplied to the liquid jet head.

A closure is removably attachable to a container and comprises a dispensing orifice and a tubular valve element that is biased closed blocking communication of the container with the orifice. By inverting the container so that a liquid contents of the container exerts pressure on the valve element, or by squeezing the container causing the liquid contents to exert pressure on the valve element, the valve element opens communication with the dispensing orifice allowing the liquid contents to be dispensed from the container. On removing the pressure from the valve element, the valve element resiliently closes the dispensing orifice.

A system for pressurizing liquid is described herein. The system may include a liquid reservoir and a pump coupled to the liquid reservoir, the pump to draw liquid from the liquid reservoir. A compliant volume coupled to the pump receives liquid from pump. The compliant volume is composed of an elastic material to increase pressure of the liquid. A valve coupled to the compliant volume receives pressurized liquid from the compliant volume.

A system for producing hydrocarbons from a well includes an unloading unit that receives fluids from a wellhead. The unloading unit separates the oil and gas, and the oil is pumped to a pipeline. Using the unloading unit and the pump helps to reduce the pressure at the wellhead which helps increase production. The gas separated by the unloading unit is compressed and re-injected into the well to create a gas lift which further helps increase production. Capturing and reinjecting the separated gas for gas lift operations reduces environmental damages associated with conventional unloading unit and pump assemblies. The unloading unit, compressor, and pump are modular for quicker installation and a smaller footprint. After increasing the productive life of a first reservoir, the system can be broken down and reassembled for use at another reservoir.

The invention provides a static-pressure horizontal electroplating bath, which consists of an upper frame, a lower frame, a lower anode, an upper anode, liquid blocking plates, a conductive roller, a supporting roller, an edge cap and an automatic tracking system, and is characterized in that: a double-cavity lower static-pressure cavity and an upper static-pressure cavity are formed between electroplating regions I and F in the middle of the electroplating bath; and plating solution is input into the upper and lower static-pressure cavities and horizontally sprayed into the electroplating regions I and F through a gap between band steel and a cavity head of the upper static-pressure cavity and a gap between the band steel and a cavity head of the lower static-pressure cavity. The gap between the band steel and the cavity head of the static-pressure cavity is smaller than the distance between the band steel and the anode; the transverse width of a main cavity of the static-pressure cavity is slightly smaller than the width of the band steel; and the distance between the upper and lower liquid blocking plates is smaller than the anode distance. High liquid static-pressure band steel clamping capacity and liquid static-pressure anti-band steel deflection capacity are established in the bath, so bidirectional horizontal injection of the plating solution in the middle of the bath is realized, and short circuit and burning problems of the band steel and the anode in a horizontal electroplating bath are solved. The static-pressure horizontal electroplating bath has the advantages of stable and reliable running, high coating quality, high current density, low power consumption, simple and compact device structure and the like.

The invention discloses a cast iron pot with a composite material as a sand mould and a casting method thereof. The casting method includes the steps that sand mould raw materials are weighed quantitatively and mixed evenly, then the materials are ball-milled and dried, a composite material sand mould is obtained, and the composite material sand mould is placed in a high-pressure container; cast iron blocks are fully heated and completely melted into molten iron, the molten iron is poured into the composite material sand mould, pressure in the pressure container is high pressure, a staged cooling means is adopted till the molten iron is completely cooled to room temperature to form castings, pressure continues to be maintained, and high pressure is relieved; the mould is taken out, the composite material sand mould is slowly removed by means of a metal tool, and the cast iron pot is obtained. Casting technologies, especially the improved casting technologies of improving a sand mould formula, improving pressure in a sand box, adopting the staged cooling means and the like, can greatly improve product quality of the cast iron pot and has certain economic and social meaning.

A fuel delivery system for a gas turbine engine includes a fuel tank; a draw pump downstream of the fuel tank for generating a liquid fuel flow from the fuel tank; a main fuel pump downstream of the draw pump; and a fuel oxygen conversion unit downstream of the draw pump and upstream of the main fuel pump. The fuel oxygen conversion unit includes a stripping gas line; a contactor in fluid communication with the stripping gas line and the draw pump for forming a fuel/gas mixture; and a dual separator pump in fluid communication with the contactor for receiving the fuel/gas mixture and separating the fuel/gas mixture into a stripping gas flow and the liquid fuel flow at a location upstream of the main fuel pump.

Gravity and hydrostatic pressure are natural forces that have considerable force generating capabilities which can make significant contributions during the operation of a FFWN 24/7/365, baseload, 100% clean energy power plant. When these natural forces are combined with compressed air in the upper part of an elevated storage tank containing a liquid and the partial vacuum created by powerful pumps to produce a targeted water flow rate velocity of about 31.3 m/s through the entire length of a coiled section of pipe containing one or more helical turbines in each coil that are connected to an external generator, the electricity produced during a power producing cycle by all the turbines/generators when combined will be considerably more than the power ultimately consumed by the pumps to return the highly pressurized water in a ground level tank back to the storage tank utilizing a return tank and simple water displacement.

A pipe bending apparatus for performing a pipe bending method, wherein the method includes filling a workpiece with a liquid, pressurizing the liquid to a target pressure level, and bending the workpiece to create a bent pipe. Preferably, the pressure level is inversely proportional to the radius of the bend in the pipe. Furthermore, preferably the pressure is directly proportional to the bending angle of the pipe. Preferably, the pressure is maintained substantially at the target pressure during the bending process. Optionally, the pressure level can be increased during the bending process.

An injection device having at least one flexible diaphragm The injection device for forming a preform into a container and filling the container, and further including a main housing having an inlet, an outlet and an injection chamber, a closing body movable relative to the outlet between a closed position and an opened position, a closing diaphragm attached at least to the closing body, the injection chamber being delimited at least by an inner surface of the closing diaphragm, the closing diaphragm having an outer surface defining an outside area, a bearing surface against which a supported portion of the outer surface of the closing diaphragm is applied. The closing diaphragm further includes a free portion forming with the supported portion the whole outer surface of the closing diaphragm. The bearing surface is arranged such that the surface of the free portion decreases when the closing body moves from the closed position to the opened position.

The present invention pertains to a wiping and/or sealing element for sealing a piston (11) guided movably in a housing (10) with a seal held in a groove (21, 30). The present invention pertains, furthermore, to a process for sealing a movable piston (11) by means of a seal inserted into a groove (21, 30) and a clamping and/or support element with a piston (21), which is guided in a housing (10) such that it can be withdrawn and extended, wherein the piston (11) is sealed by means of a seal arranged in a groove (21). To achieve sealing of the piston (11) with a high sealing force for high liquid pressures at low friction, the wiping and/or sealing element according to the present invention as well as the clamping and/or support element according to the present invention are wherein the seal is a quad ring (22) with a square cross section.

A gas-liquid mixing type jet injection device comprises a first mixing cavity (1), a second mixing cavity (2), a tapered shrinkage portion (3) and a diffusion portion (4) in sequentially adjacent connection. The first mixing cavity is peripherally provided with one or more gas suction inlets (7), and a water inlet (5) is positioned in the center of the first mixing cavity. The second mixing cavity(2) is peripherally provided with one or more treating fluid inlets (9) and a compressed gas inlet (10). The gas-liquid mixing type jet injection device is characterized in that a plurality of rectifying plates (12) are arranged on the inner peripheral wall of the tapered shrinkage portion (3) and internally provided with buffer cavities (16), and one side of each rectifying plate is provided with one or more inlet holes (17) while the other side is provided with one or more outlet holes (18). The gas-liquid mixing type jet injection device has advantages that problems of liquid impact and wall attachment of liquid in flow gathering of the tapered shrinkage portion can be reduced, design of the buffer cavities enables appropriate increasing of the pressure of liquid in a cavity of the tapered shrinkage portion during flow gathering, and a certain pressure increasing effect is achieved.

A hydraulic system for a machine is disclosed. The hydraulic system includes a hydraulic tank configured to store a liquid therein. The hydraulic system also includes a first conduit, a venturi, a fluid conduit and a second conduit. The first conduit is in fluid communication with the hydraulic tank and configured to receive the liquid from the hydraulic tank. The venturi is in fluid communication with the first conduit and configured to reduce a pressure of the liquid flowing therethrough. The fluid conduit is in fluid communication with the venturi and configured to supply a gaseous fluid into the venturi. The second conduit is in fluid communication with the venturi and configured to supply a mixture of the liquid and the gaseous fluid into the hydraulic tank in order to increase a pressure of the liquid in the hydraulic tank.

The invention discloses a double-cavity pressurization connector. The double-cavity pressurization connector comprises a liquid inlet pipe, a primary pressurization chamber, a secondary pressurization chamber and a liquid outlet pipe which are communicated together in sequence, wherein a primary pressurization cavity is arranged in the primary pressurization chamber; a primary baffle is arranged between the primary pressurization cavity and the liquid inlet pipe and provided with a primary liquid inlet; a secondary pressurization cavity is arranged in the secondary pressurization chamber; a secondary baffle is arranged between the secondary pressurization cavity and the primary pressurization cavity and provided with a secondary liquid inlet; the liquid inlet pipe and a liquid storage tank are communicated with the liquid outlet pipe sequentially through the primary liquid inlet, the primary pressurization cavity, the secondary liquid inlet and the secondary pressurization cavity. According to the technical scheme, liquid is pressurized through the primary pressurization cavity and the secondary pressurization cavity and then enters a small-diameter pipeline after being pressurized, stress is not increased suddenly in the radial direction of the small-diameter pipeline, the stress is relatively balanced, and the service life is prolonged.