摘要:
The invention concerns a bogie whereof the structure essentially consists of two longitudinal beams (3) in mechanically-welded assembly, maintained by cross members, with I-shaped cross-section, that is it consists of an upper base plate (5) and a lower base plate (7) linked by a vertical web (9), said structure being supported at each of its ends on wheels (12) linked by axles (10) maintained by spring supports (4) integral with the structure. Said bogie is characterized in that each of the spring supports (4) is terminated, in its upper part, by a part which constitutes the base plate of the longitudinal beam (3).
摘要:
The invention concerns a spiral heat exchanger, consisting of a series of spiral plates spaced apart from one another by spacer elements (3), wherein the spiral plates are formed by a coiled flattened tubular element and consisting of at least a sheet of material (1) whereof the edges (1a, 2b) are sealingly assembled by linking means (4) which extend parallel to the longitudinal axis (yy') of the sheet (1) Said exchanger is characterised in that the flattened tubular element comprises on its outer surfaces ribs (3) inclined relative to its transverse axis (xx').
摘要:
A method for controlling an injection moulding press, wherein the injection process is controlled by controlling the injection force, is disclosed. According to the method, the mass (m) of a moulded product is correlated with the viscosity ( eta ) and either the pressure (Pm) of the material in the mould or the injection pressure (Ph), the resulting correlations are processed to define an analytical model expressing the mass (m) of the moulded product in relation to the operating parameters, an injection force control law is derived from said analytical model on the basis either of the pressure (Pm) of the material in the mould or of the injection pressure (Ph), and the press injection force is controlled on the basis of said analytical model.
摘要:
The invention relates to a method for detection and location of a difference in density and/or structure and/or chemical composition of a biological tissue (7) which is subjected to continuous illumination in a first determined band of frequencies, causing the former to generate a phenomenon of fluorescence, autofluorescence or luminescence in a second band of frequencies. Said method is characterized in that it comprises the following stages: the biological tissue thus illuminated is visually captured by colour video means provided with image sensors with a mosaic of pixels provided with additional colour filters; for each image point thus obtained 1) information relating to the energy received by each pixel is collected in order to reconstitute an image of the biological tissue (7), b) amplification occurs for the signal corresponding to the energy received in the second frequency band in order to characterize the biological tissue (7) difference or to cause the image thus obtained to appear.
摘要:
The invention concerns a method and an installation for setting in adsorbed state, on a porous support, compounds contained in a product comprising a first step which consists in extracting the compounds by contacting the product with at least a solvent at supercritical pressure to obtain a mixture of extracts and solvent. The method is characterised in that it comprises a second step which consists in eliminating the water contained in the mixture of extracts and solvent, adjusting the temperature and pressure conditions so as to obtain, a first phase consisting of solvent in gaseous state and a second phase consisting of a mixture of liquids formed of solvent and extracts of the products; causing said two phases to trickle through a porous support adapted to adsorb the extracts; vaporizing the solvent contained in the second phase.
摘要:
The aim of the inventive method is to continuously measure, monitor and record operating parameters of medical appliances especially a medical insufflator, by storing the parameters measured on a pre-determined number of last operating cycles of the appliance, or over a pre-determined sliding operating period of said appliance. If an operating incident is detected, the data recorded at the time of the incident is stored. Furthermore, during the setting-up of the medical instrument, possible malfunctions of essential components are detected and the detected defects of said components are recorded.
摘要:
The present invention relates to a mold device having a combination of molds for stretch blow molding, comprising a main blow mold 5, installed on a pair of platens 2 by being separated into split molds 5a, a pre-blow mold 10, attached to a lifting device 11 under the area between the split molds 5a, and movable in and out from the area between the split mold 5a, a neck mold 7, which is fitted into the pre-blow mold 10 and main blow mold 5 respectively, a blow core 20, which is fitted in to the neck mold 7, and a stretch rod. The pre-blow mold 10 comprises a cylindrical member having an open end on the upper portion, which is fitted into the neck mold 7. A bottom mold 8 of the main blow mold 5 is installed in the bottom portion of the split mold 5a by being separated into split bottom molds 8a. Lifting cylinders 9 are placed under the both of the split bottom molds 8a in order to make the bottom mold 8 movable in and out from the bottom portion of a cavity.
摘要:
The invention relates to a device for fixing a crossbar (17) which is intended to connect two control links (9) which are associated with shoe braking means for rail bogies. The inventive device is characterised in that each end of the crossbar (17) is essentially supported by a link (9) and in that it comprises a fixing element (22) which passes through said link (9) and which is housed in one end of the crossbar (17). The aforementioned fixing element (22) is provided with means of ensuring that it remains solidly connected in translation with the link (9).
摘要:
The invention concerns a structural profiled section, in particular for partitions. Said profiled section is characterised in that its cross-section comprises two parallel U-shaped parts, designed to receive the partition (14) panels, and the inner branches of the U-shaped parts are assembled by a transverse junction element (5) arranged at short distance from their respective bases (3c).
摘要:
The invention concerns a strut with substantially U-shaped cross-section providing an angular link between two tie pad elements (5a, 5c) of a recess produced in the beam of a bogie structure, in particular for a freight car. Said strut is characterised in that it is made of a material of a type different from that of the other elements of the tie pad whereto it is linked, so that its maximum endurance limit is represented on the curve expressing the variation of dynamic stresses based on the mean stresses for a given metal, by a point located inside said curve.