摘要:
A compression apparatus which is operated in association with at least two mold parts which can move relative to one another. The compression apparatus is formed of at least one compression units having a working chamber and a working element which can move in it. A gaseous medium can be provided to the working chamber under any initial pressure. During the closing motion of the parts of the mold, the working element is moved in the working chamber, such that the volume in the working chamber is reduced, and in this way, in the course of the closing motion, the gaseous medium is compressed in the working chamber. The compressed gaseous medium can then be sent to a consumer with or without intermediate storage. A compression apparatus of this type is intended for an injection molding machine in which gas pressurization is to take place in a cavity. In one embodiment, the compression apparatus integrated into the mold or into one of two mold parts, or its platens, adapter plates or the like, and in another form, it is attached to one of the mold parts. Optionally, the compression apparatus can comprise several compression stages formed by a series connection of a plurality of individual working chambers, with or without cooling of the gaseous medium as it moves between the compression stages.
摘要:
The present invention teaches a wobble-hinged metal fitting suitable for adjustable motor vehicle seats, and more particularly, for back seat gears. The fitting includes two hinged brackets connected together by an eccentric, a carrier and shaft running therethrough. Each bracket contains an internal gear and an external gear associated with the internal gear. The eccentric is positioned next to one of the gears and is turnably connected to the shaft. The eccentric includes means for compensating play in the seat which consist of an eccentric part having a receiving inlet, at least one rolling body, at least two jamming planes and at least one spring. The spring is positioned such that it pressures the rolling body to come in contact with the jamming plane on one side and the gear on the other side. The carrier is positioned such that when the rolling body is in a locked position, an initial turning movement of the shaft results in the release of the locked rolling body before the eccentric starts to move.
摘要:
The self-locking revolute joint which can be step by step adjustable to an angle by means of pumping movements of an activation lever is particularly suitable for adjustment of seat height or backrest inclination of vehicle seats. It has a mount in which a bearing shaft is journalled. Further, it has a locking disk with notches arranged at equal angular intervals and with a torsion-proof connection with the bearing shaft; further a locking element which is preferably journalled with turning capability at the mount, also having a locking tooth confunctioning with the notches and being elastically prestressed in the engagement direction of this locking tooth and having a total of two control profiles, each one of which has a release profile and an unblocking indentation, the distance between which corresponds to the angular intervals between the notches, and confunctioning with carriers, which can be adjusted by means of the activating lever. Thereby, a return spring is assigned to the activation lever, prestressing the latter into the central position.The activation lever has a rigid connection with an activation plate, which is journalled to turn freely with the bearing shaft. On the activation plate, around a linkage axle, a release segment is linked so that it can be freely turned, having two carriers arranged symmetrically to the line connecting the linkage axle and the axis of the bearing shaft, being prestressed by means of a return spring into a neutral position, in which both carriers are disengaged from the notches and these carriers are arranged so that after a turning away from the neutral position, one of the carriers engages in one notch, while the other impacts on the adjacent release profile of the locking element and unlocks it.
摘要:
For obtaining C.sub.2+ or C.sub.3+ hydrocarbons from gas mixtures containing essentially light hydrocarbons and optionally, hydrogen or nitrogen, the gs mixture is first cooled and subjected to a phase separation, and the thus condensed components are fractionated by rectification. The uncondensed portion of the gas mixture along with the overhead product of the rectification after it has been partially condensed, is subjected to treatment in a recontacting column wherein mass transfer and heat transfer occur, and wherein C.sub.2+ or C.sub.3+ hydrocarbons are transferred from the gas phase to the liquid phase. The liquid phase thus collected is fed into the rectification column as external reflux while the remaining gas is removed, after heating, as a residual gas.
摘要:
The vertical and angular position adjusting device includes at each lateral side of the seat a five-bar linkage including an underframe, a seat carrier bar, a pair of two-arm support levers pivotably connected to the frame, a coupling bar linked between the outer arm of one of the support levers and an end portion of the carrier bar, and the other end portion of the carrier bar being hinged to the outer arm of the other support lever. The support levers at one lateral side of the seat have gear segments formed on the inner arm of each support lever. A pair of arresting levers is linked to the underframe between the support levers and is provided with arresting teeth engageable with respective gear segments. A pair of switching levers is linked to the underframe between the arresting levers and is spring-biased to abut against a front locking surface provided on each arresting lever in order to hold the latter in a locking position. A control lever is linked to the underframe between the switching levers and supports a cam which displaces the switching levers against the force of the spring into a released position in which the selected arresting lever is disengaged from the support lever.
摘要:
The invention relates to a method for the separation of a hydrocarbon-rich, nitrogen-containing feed fraction (1, 101), preferably natural gas, wherein the feed fraction (1, 101) is at least in part liquefied (E1, E2) and divided by rectification (T1) into a nitrogen-enriched fraction (14, 110) and a hydrocarbon-rich, nitrogen-depleted fraction (11, 111) and wherein, in the upper region of the rectification (T1), a nitrogen-enriched stream (14) is taken off, cooled (E3) and applied (20) at least in part to the rectification (T1) as reflux and/or the nitrogen-enriched fraction (110) is cooled and partially condensed (E3), applied at least in part to the rectification (T1) as reflux (115) and the remaining stream (116) of the nitrogen-enriched fraction (110) is subjected to a double-column process (T3). According to the invention, in the middle region of the rectification (T1), a carbon-dioxide-poor stream (13, 113) which serves for cooling (E3) the nitrogen-enriched substream (14) and/or cooling (E3) the nitrogen-enriched fraction (110) is taken off and the feed fraction is rectified (T1) in a separation column (T1) having a dividing wall (W), wherein the dividing wall (W) is arranged at least in the region of the separation column (T1) in which the feed fraction (2, 4, 5, 102, 104, 105) is fed to the separation column (T1) and the carbon-dioxide-poor stream (13, 113) is taken off.
摘要:
A process is described for separating off a nitrogen-rich fraction from a feed fraction containing essentially nitrogen and hydrocarbons, wherein the feed fraction is separated by rectification into a nitrogen-rich fraction and a methane-rich fraction and wherein the methane-rich fraction for the purpose of cold generation is vaporized and superheated at a pressure as high as possible against the feed fraction which is to be cooled.According to the invention the still liquid or partially vaporized methane-rich fraction (5′) is fed to a circulation vessel (D), only the liquid fraction of the methane-rich fraction (5′) occurring in the circulation vessel (D) is completely vaporized, preferably in natural circulation, and the top product (7) of the circulation vessel (D) is superheated (E1).
摘要:
A method for liquefying a hydrocarbon-rich stream, in particular a natural gas stream, is disclosed. A liquefaction of the hydrocarbon-rich stream takes place countercurrent to a refrigerant mixture cycle cascade consisting of two or three refrigerant mixture cycles. No additional process steps are involved in the heat exchange between the hydrocarbon-rich stream which is to be precooled and the refrigerant mixture of the first refrigerant mixture cycle.
摘要:
A method of evaporating a process stream is disclosed. In an embodiment, a process stream to be cooled is provided to a heat exchanger. A process stream to be evaporated is provided to the heat exchanger. A gas and/or a liquid is admixed with the process stream to be evaporated only when an amount of gas generated during evaporation of the process stream cannot entrain a liquid portion of the process stream to be evaporated. A gas is generated by the admixing.
摘要:
There is provided a motor vehicle seat with a seat support, which is constructed of two sections, namely of a front part and of a back part, which are connected with each other via two side connecting areas and that for an adjustment of the seat depth, the side connecting areas each have a long hole, into which an axle pin is led and that a device exists for the mechanical adjustment and fixation of the two sections in opposition to each other.