13 results about "Fluid interface" patented technology

This invention discloses a simulation method, apparatus, medium, and device for flip chip underfill, relating to the field of flip chip underfill simulation technology. The invention simulates the flip chip underfill process within a computational domain divided into two meshes in a flow plane perpendicular to the depth direction using a color gradient lattice Boltzmann model. A color function clearly distinguishes between the wetting phase (filler adhesive) and the non-wetting phase (air) to dynamically track the two-phase interface. When simulating the flow field changes during the self-absorption process of flip chip underfill, the average curvature of the interface in the depth direction and the average frictional force of the upper and lower solid walls of the flip chip are introduced to determine the force applied at the two-phase fluid interface, thus reflecting three-dimensional physical effects. While maintaining near-two-dimensional computational costs, this invention significantly improves the accuracy of flip chip underfill simulation and can quickly predict the entire flip chip underfill process at a lower cost.

A distributor assembly (14), particularly designed for a separation unit (12) of a modular process equipment unit (10), includes a fluid distribution device with a plurality of fluid interfaces (28, 30), wherein the fluid distribution device is capable of selectively establishing and blocking flow connections between the fluid interfaces (28, 30). The distributor assembly also includes an interface element (42) and a fastening element (58). The interface element (42) is mountable on one of the fluid interfaces (30), and the distributor assembly (14) has an associated mounting groove (60) at the fluid interface (30). The mounting groove (60) is adapted to the shape of the fastening element (58) such that the fastening element (58) can be introduced into the mounting groove (60) up to a defined fastening position in which the fastening element (58) engages with and secures the interface element (42).

A combined plumb and level measurement apparatus can comprise a housing defining a sealed chamber and a viewing window with at least one transparent face. A fluid interface between a fluid occupying a first volume within the sealed chamber and a headspace above the fluid provides a level reference across the viewing window. A pendulum within the sealed chamber extends through the fluid and is pivotably supported about a pivot axis proximate a geometric center of the sealed chamber, where the pendulum aligns with a direction of gravity independently of an orientation of the housing to provide a plumb reference visible through the viewing window concurrent with the level reference of the fluid interface. Exterior indicia along a housing circumference include at least a first pair of opposed level reference marks and a second pair of opposed plumb reference marks angularly offset from the opposed level reference marks.

The application relates to the technical field of polymer forming and processing equipment, and discloses a multi-material composite part embedding and glue sealing integrated injection molding equipment, which comprises a fixed mold assembly and a movable mold assembly. An inner layer positioning core for bearing an embedded part is arranged in the movable mold assembly, and a middle layer logic forming sleeve is arranged outside the inner layer positioning core. The middle layer logic forming sleeve is driven by a driving unit to move along the outer wall of the inner layer positioning core. A fluid control circuit and an adaptive support mechanism connected with the fluid control circuit are arranged in the fixed mold assembly. A fluid interface is arranged on the matching surface of the fixed mold assembly and the movable mold assembly. The shearing flow channel logic hole in the sidewall of the middle layer logic forming sleeve serves as a physical switch, directly converts the cavity reconstruction action of the movable mold into a hydraulic trigger signal of the support pin of the fixed mold, and enables the mold system to maintain high operation robustness under harsh working conditions such as high temperature, high pressure and strong electromagnetic interference.

The invention provides automatic sample loading chromatography equipment and a chromatography method, and relates to the technical field of biological separation.The chromatography equipment comprises a feeding assembly, a processing assembly, a sample loading assembly and a controller, the feeding assembly comprises a plurality of sample containers, a target solution to be subjected to chromatography and an auxiliary solution needed for chromatography of the target solution to be subjected to chromatography; the treatment assembly comprises a chromatographic column; the sample loading assembly is respectively connected with the feeding assembly and the processing assembly, the sample loading assembly comprises a multi-way reversing valve and a fluid driving mechanism, and a fluid interface of the multi-way reversing valve is connected with a plurality of sample containers and chromatographic columns; the fluid driving mechanism is connected with one fluid interface of the multi-way reversing valve and sucks or discharges a sample solution through the multi-way reversing valve; and the controller is in signal connection with the multi-way reversing valve and the fluid driving mechanism so as to control the reversing valve core and the fluid driving mechanism to provide a target solution and / or an auxiliary solution to be subjected to chromatography to the processing assembly. According to the chromatographic equipment, automatic sample loading can be realized, the precision of sample loading quantity is improved, and the chromatographic efficiency is improved.

This document describes systems and method of embedded printing for additive manufacturing. A print material is printed into a support material. The print material and the support material each have a fluid phase and a solid phase. The print material transitions from the fluid phase to the solid phase based on a fluid-fluid interaction with the support material. One or more parameters of the support material can be adjusted to cause a diffusion rate of the print material into the support material during the fluid-fluid interaction to be less than a threshold value. Multiple print materials can be printed into the support material simultaneously. 20 24 20 22 32 08 A pr 2 02 4 A B S T R A C T 2 0 2 4 2 0 2 2 3 2 0 8 A p r 2 0 2 4

The utility model relates to a valve technical field especially relates to a gate valve structure with check valve, the utility model discloses a gate valve structure with check valve includes: the valve body, and its inside forms N valve space, N valve body, each valve body installs in corresponding valve space, and each valve body includes: valve core, valve bush, compression spring, wherein: valve core includes: valve core seat, press ball, spherical spring seat, valve core seat includes: bottom plate, erects on the step of valve space first end, and the middle is provided with the first flow hole of the intercommunication fluid import, the outer tube is formed in the bottom plate side away from fluid interface, and its inside forms the installation space, the spherical spring seat installs in the installation space of the outer tube of valve core seat, the press ball is fixed to the concave spherical end of spherical spring seat, and presses on the first flow hole, the outside of valve bush is fixed on the valve body, and the inside forms the activity space, the utility model solves the problem that the export medium reflux leads to the lower efficiency when compressing gas.

This invention discloses a free positioning device and its control method, comprising: a housing with a flexible sealing structure at its open edge; a flexible seal for fitting against the surface to be positioned to form a seal, creating a sealed space between them; the flexible seal is directly or indirectly connected to the housing for transmitting pressure to the housing; and a fluid interface disposed on the housing for filling the cavity with pressurized fluid and maintaining the pressure state within the cavity after filling. When the device is pressed against the surface, pressurized fluid is filled into the cavity to form a high-pressure zone, creating a pressure difference between the high-pressure zone and the sealed space between the flexible seal and the surface. This pressure difference drives the flexible seal to press firmly against the surface to be positioned, achieving a secure fixation. After releasing the pressure, the device can be easily removed. This device actively controls the adsorption force by adjusting the fluid pressure within the cavity; the adsorption force is positively correlated with the fluid pressure. The housing isolates the external environment from the cavity, ensuring that the high-pressure state within the cavity is unaffected by external environmental pressure conditions. This device can operate in vacuum environments in space, high-pressure environments in the deep sea, and conventional environments on Earth. It is adaptable to a wide range of surface types, from smooth to rough, and can be integrated and installed as a functional component on other objects. This invention also provides a depth- and load-based intelligent pressure control method to achieve dynamic adjustment of the adsorption force.

The utility model belongs to the tube bundle pressure applying tool technical field, specifically is a kind of dry evaporator tube bundle pressure test tool, including cylinder body;The cylinder body top is equipped with fluid interface;Both ends of the cylinder body are connected with fixed flange by bolt, the cylinder body is equipped with a pair of tube plate, a group of heat exchange pipes are equipped between a pair of the tube plate, and a group of heat exchange pipes one end and tube plate are fixedly connected, and the other end penetrates tube plate;A pair of the fixed flange opposite end portion is fixedly connected with sealing washer, and a pair of tube plate is contacted with sealing washer;The utility model solves the problem that the air leakage point between the tube plate and heat exchange pipe welded is difficult to detect in prior art, and the problem that the dismounting installation process required for air leakage detection is complicated, finally realizes the accurate, efficient detection of pipe head leakage.

The application discloses a proportional valve simulation method and device, equipment, storage medium and program product, and relates to the technical field of water heaters. The method comprises the following steps: determining the fluid interface of a target proportional valve and the fluid parameters corresponding to the fluid interface; constructing a control body model of the target proportional valve according to the fluid parameters, wherein the control body model is used for describing the corresponding relationship between the fluid parameters and the input target proportional valve and the output of the target proportional valve; and based on the fluid interface and the control body model, a proportional valve twin model corresponding to the target proportional valve is built, which is used for executing a proportional valve simulation operation. The application aims to establish a digital twin model corresponding to the proportional valve in the water heater, so as to improve the product development efficiency of the proportional valve.

A method and system for non-destructive characterization of porous media samples are disclosed. The method for porous media characterization by one or more central processing units (CPUs) includes obtaining one or more segmented images from a set of images of a porous media sample, determining one or more fluid-fluid interfaces (FFIs) within one or more segmented images for each pixel of the one or more segmented images, and based at least in part on the FFIs, extracting one or more characteristics of the porous media sample.

A drug preparation system is provided that is configured for being disposed within an enclosure and is operative to perform fluid transfer between at least one container and at least one fluid transfer assembly while disposed within the enclosure. The enclosure includes a gas flow source that is operative to generate a gas flow along a vertical gas flow path, the drug preparation system having a vertical axis and including: at least one platform that includes a platform upper surface; at least one container receiving module that is configured to receive the container, the container receiving module including a body and a fluid interface portion that is configured to accommodate a fluid transfer element of the container to perform the fluid transfer therethrough, the body being disposed at least partially vertically above the platform upper surface and at least a portion of the fluid interface portion extending away from the platform upper surface in a direction transverse to the vertical axis; and a virtual vertical column that extends along the vertical axis and includes the fluid interface portion, wherein the vertical virtual column at least partially defines a portion of the gas flow path while the drug preparation system is disposed within the enclosure and the gas flow is generated, the vertical virtual column including an upper column portion that extends above the fluid interface portion and a lower column portion that extends below the fluid interface portion, at least the upper column portion being at least selectively free of non-laminar flow disturbances along at least the vertical axis.