Abstract: The invention relates to a non-return valve, in particular for a refrigeration or heat circuit, which valve can be inserted into a connection opening (26, 27, 28, 29) of a connection device (21) or of a pipe (39) and comprises: —a one-part or multi-part housing (42) which comprises at least one main housing (44), a feed opening (48) being provided on the inlet side and a discharge opening (51) being provided on the outlet side of the main housing (44), the feed opening and the discharge opening being interconnected by a flow channel (49); —a guide element (53) which is provided on the main housing (44) and by means of which a valve closing element (61) is guided slidably relative to the main housing (44), the valve closing element (61) being arranged in a starting position (42) by means of an energy accumulator (71) and the valve closing element (61) being slidable toward the discharge opening (51) against an actuating force of the energy accumulator (71) in order to be transferred into a working position (63

Abstract: The invention relates to a non-return valve, in particular for a refrigeration or heat circuit, which valve can be inserted into a connection opening (26, 27, 28, 29) of a connection device (21) or of a pipe (39) and comprises:—a one-part or multi-part housing (42) which comprises at least one main housing (44), a feed opening (48) being provided on the inlet side and a discharge opening (51) being provided on the outlet side of the main housing (44), the feed opening and the discharge opening being interconnected by a flow channel (49);—a guide element (53) which is provided on the main housing (44) and by means of which a valve closing element (61) is guided slidably relative to the main housing (44), the valve closing element (61) being arranged in a starting position (42) by means of an energy accumulator (71) and the valve closing element (61) being slidable toward the discharge opening (51) against an actuating force of the energy accumulator (71) in order to be transferred into a working position (63),

Abstract: The invention relates to an expansion valve, in particular for a vehicle air-conditioning system operated with cooling medium, with a valve seat (37) and a valve-closing element (39), which closes a passage opening (44) between a cooling medium inlet opening (14) and a cooling medium outlet opening (16), and with an actuating device (46) which acts on the valve-closing element (39) and opens and closes the passage opening (44), a shortened maximum working lift for opening the valve-closing element (39) out of the valve seat (37) being provided, at which a ball seat cross section formed between valve-closing element (39) and valve seat (37) is designed to be smaller than an annular gap cross section formed between a transmission pin (47) of the actuating device (46) and a passage opening (44).

Abstract: The invention relates to a method of producing a valve arrangement and to a valve arrangement for an expansion valve, which is provided in a vehicle air conditioning system operated with refrigerant and has a basic opening in the valve seat, the cross section of this basic opening being produced for a predetermined mass flow by material removal.

Abstract: The invention relates to an expansion valve, in particular for a vehicle air-conditioning system operated with cooling medium, with a valve seat (37) and a valve-closing element (39), which closes a passage opening (44) between a cooling medium inlet opening (14) and a cooling medium outlet opening (16), and with an actuating device (46) which acts on the valve-closing element (39) and opens and closes the passage opening (44), a shortened maximum working lift for opening the valve-closing element (39) out of the valve seat (37) being provided, at which a ball seat cross section formed between valve-closing element (39) and valve seat (37) is designed to be smaller than an annular gap cross section formed between a transmission pin (47) of the actuating device (46) and a passage opening (44).

Abstract: The invention relates to an expansion valve, in particular for a vehicle air-conditioning system operated with cooling medium, with a valve seat (37) and a valve-closing element (39), which closes a passage opening (44) between a cooling medium inlet opening (14) and a cooling medium outlet opening (16), and with an actuating device (46) which acts on the valve-closing element (39) and opens and closes the passage opening (44), a shortened maximum working lift for opening the valve-closing element (39) out of the valve seat (37) being provided, at which a ball seat cross section formed between valve-closing element (39) and valve seat (37) is designed to be smaller than an annular gap cross section formed between a transmission pin (47) of the actuating device (46) and a passage opening (44).

Abstract: The invention relates to a method of producing a valve arrangement and to a valve arrangement for an expansion valve, which is provided in a vehicle air conditioning system operated with refrigerant and has a basic opening in the valve seat, the cross section of this basic opening being produced for a predetermined mass flow by material removal.

Abstract: In an aircraft having a cylindrical or tapered pressurized fuselage, an internal bulkhead includes a central calotte shaped part of particular thickness and made of a fiber-mesh, a woven or a fleece-like reinforcement of a particular radius of curvature and preferably made of Kevlar: a possibly thicker edged portion of, preferably, carbon fiber-reinforced material, which possibly matches any taper of the fuselage, and a transition from the calotte shaped part to the edge having a radius of curvature smaller than the particular radius of the calotte shaped partition.

Abstract: The fiber composite for bearing structures for absorption of electromagnetic waves consists in its structure of at least three layers (2, 3, 4, 5, 6, 7, 8, 9) to be different in their electromagnetic material constants, whereby one or more fiber layers (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24) are used for the layers (2 to 9). The fiber layers demonstrate alternately by layers a high or low electrical conductivity such that the electromagnetic material constants of the layers (2 to 9) composed of the fiber layers (13 to 21 and 23, 24) and binder and the layer thicknesses are matched to one another such that the reflection attenuation is integrally maximized in a given frequency range.

Abstract: An observation and guide beam apparatus, referred to as a spotter scope, has in addition to a laser guide beam generator an optical daytime channel for daytime spotting or viewing and a day- and nighttime channel for both night and day observations. These channels are harmonized relative to the laser guide beam by the same automatic axial harmonizing device. Further, the day and night channel includes a heat imaging device that is internally harmonized on a long term basis. The scope also has an ocular arm. This combination is especially suitable for use in a weapons system using remote controlled flying bodies, for example. The scope can use any available type of detector or detector technology.

Abstract: A gripper rod for a shuttleless loom has a toothed rack section made of fiber reinforced synthetic composite, preferably thermoplastic, material. The toothed rack is made of a stack of belts of such material with rectangular perforations increasing in size from the inside out or from the bottom up. By compressing and simultaneously heating the stack the matrix material is cured, whereby the belts are bonded to one another. The gaps between the teeth may extend entirely through the rod or the rod may have a base also made of such belts but not having any perforations.

Abstract: In scanning an image field, for example an image field radiating infrared diation sensed by an infrared sensor, at least one, preferably two, electronically controlled scanners are used. The respective scanning directions extend perpendicularly relative to each other. Changes in these scanning directions are determined with the aid of a reference signal generator providing horizontal and vertical deviation signals with reference to a central or mean view direction. The central or mean view direction of at least one of the scanners, preferably of both scanners is then varied or corrected in a closed loop feedback circuit in response to the deviation signals so that the central or mean view direction is restored and maintained. Preferably, any horizontal or azimuth scanning deviation from the central or mean viewing direction is corrected by shifting the respective image points stored in a memory in a correction direction in response to the respective horizontal or azimuth deviation signal.

Abstract: A fiber compound material of individual layers of superposed fiber plies such as glass fiber prepregs which are joined together by a matrix of a resin and a hardener and act as a load carrying structure to absorb electromagnetic waves. Radar beam-absorbing fillers, for instance iron powder or soot, are included, in concentrations varying from the outside to the inside, in the individual plies of the fiber compound material.

Abstract: Novel preformed, laminated plastic panels as semi-finished products comprising a plurality of individual laminated thermoplastic layers or thermoplastic layers arranged in partly differing orientations reinforced with unidirectionally preoriented short fibers comprising 20 to 80% of the layer volume, said laminate capable of being molded and/or deep drawn by hot pressing and/or hot molding at 70.degree. to 400.degree. C. and at a pressure of approximately 40 bar.