31results about How to "Shorten infusion time" patented technology

A mold and method for vacuum assisted resin transfer molding of a fiber reinforced laminated structure are provided. The mold includes a first mold part and a second mold part. The first mold part defines a negative impression of the laminated structure, being structurally stable and forming a support for fiber reinforcement layers of the laminated structure. The second mold part connectable to the first mold part for closing the mold and defines together with the first mold part an enclosed space which can be evacuated. The mold further includes a flow duct for guiding a liquid polymer which is formed as a recess in the first mold part and / or a recess in the second mold part that is open towards the enclosed space and extends along a section of the periphery of the first mold part and / or the second mold part.

The present disclosure provides a method of manufacturing a composite laminate structure of a wind turbine blade part by means of resin transfer moulding, preferably vacuum-assisted resin transfer moulding. In a resin transfer moulding, fibre-reinforcement material is impregnated with liquid resin in a mould cavity. The mould cavity comprises rigid mould part having a mould surface defining a surface of the wind turbine blade part.The method comprises alternately stacking on the rigid mould part:i. a number of unidirectional fibre-reinforcement layers comprising electrically conductive fibres, such as carbon fibres, andii. a flow-enhancing fabric layer for enhancing a flow of the resin during infusion of the fibre-reinforcement layers, the flow-enhancing fabric layer comprising an open-structured layer made of a first material, wherein the flow-enhancing fabric layer comprises a longitudinal direction and a transverse direction,The flow-enhancing fabric layer further comprises filaments or bundles of fibres made of a second material, which is an electrically conductive material and which are arranged and configured to provide a conductive path from first electrically conductive fibres of a first fibre-reinforcement layer on a first side of the flow-enhancing layer to second electrically conductive fibres of a second fibre-reinforcement layer on a second side of the flow-enhancing layer.

The invention discloses an automatic vent type transfusion set. The automatic vent type transfusion set comprises an upper transfusion pipe, a drop funnel, a lower transfusion pipe, and a regulating switch; a liquid inlet and a liquid outlet of the drop funnel are respectively communicated with a lower end of the upper transfusion pipe and an upper end of the lower transfusion pipe; the regulating switch is arranged on the lower transfusion pipe; a contact pin is connected with an upper end of the upper transfusion pipe; a transfusion needle is connected with a lower end of the lower transfusion pipe; the automatic vent type transfusion set of the invention also comprises a reducer; the reducer is arranged between the liquid outlet of the drop funnel and the lower transfusion pipe; and during transfusion, bubbles entering the reducer are extruded and broken into smaller bubbles at the position of the smallest inner diameter of the reducer, and the smaller bubbles overcome the self-gravitation action to float upwards so as to be discharged, so that the aim of automatically venting gas is fulfilled. The automatic vent type transfusion set has the advantages of simple structure, convenient processing, and capability of achieving effects of venting the gas in real time and smoothly transfusing liquid medicine.

A cool coffee infusing apparatus is disclosed having a liquid container, a ground coffee container, and a base. The base includes a pump, controls therefore, and receptacles for the containers. The liquid container is filled with cool water and the ground coffee container is filled with ground coffee. The pump circulates the water through the grounds until a desired level of infusion is achieved and coffee beverage is created. The coffee beverage is collected in the liquids container for pouring or for storage for later use.

In a method for manufacturing a wind turbine blade half shell, a preformed and cured aerodynamic blade shell member 42 of a fibre reinforced resin is provided. A primarily uniaxial fibre material 66 comprising carbon fibre is laid up on a longitudinal inner area 50 of the preformed shell member 42 and then infused with a resin by vacuum-assisted resin transfer moulding (VARTM), where a longitudinal resin inlet channel 80,82 is arranged on a first lateral side 46 and a vacuum channel 86,88 is arranged on a second lateral side 48 of the laid-up fibre material, and the resin is infused in transverse direction from the first to the second lateral side 46,48.

A self-pressurizing device and a pressurizing method for a liquid helium dewar, aiming at solving the technical problems in the prior art that the liquid helium dewar pressurization method easily causes waste of helium and the cost of the pressurization operation is high. The invention includes a Dewar for storing low-temperature liquefied gas. The Dewar communicates with an external heat exchange piston through a first pipeline. The first pipeline is provided with a booster valve. The heat exchange piston includes a heat exchange chamber and can The reciprocating sliding piston rod in the heat chamber, the first pipe includes an outer pipe and an inner pipe, the gas flows in the outer pipe and the inner pipe are independent of each other, the heat exchange chamber includes a first side wall and a second side wall, the first side The inlet valve is arranged on the wall, and the exhaust valve is arranged on the second side wall. The inlet valve is connected with the end of the outer pipe away from Dewar through the second pipeline, and the exhaust valve is connected with the end of the inner pipe away from Dewar through the third pipe. The pipes are connected, and the other end of the inner pipe is connected with the heat exchange air bag inside the Dewar.

The invention belongs to a parenteral nutrition infusion pump, which adopts an extruding device for respectively extruding three infusion tubes in the housing, a fixing groove for fixing the three infusion tubes in the housing, and a housing at the output end of the infusion tube The body is equipped with a bubble detector, a pressure detector and a liquid stop clamp. The upper end of the shell is provided with a left shell cover and a right shell cover opened to both sides, and a liquid crystal display screen and a control keyboard are arranged on one shell cover. The invention can quickly and safely complete the three-channel transfusion process, and has the advantages of simple structure, time-saving and labor-saving, safety and sanitation, convenient use and good effect.