摘要:
An apparatus and method for generating coded high-frequency signals, having a converter, which converts non-electrical primary energy available from the surroundings into electrical energy, an element with a nonlinear characteristic curve, which is coupled to the converter, and a coding device coupled to the element with a nonlinear characteristic curve.
摘要:
For a closed-loop feedback control of a controlled system having a predetermined set course and a control trajectory for use in controlled systems in motor vehicles, an output trajectory of the controlled system is measured for the entire control time in which the control trajectory is applied to the controlled system, an error of the controlled system is detected as a function of predetermined set course and the output trajectory, and a new control trajectory is calculated for each instant of a later control process as a function of the error and the control trajectory.
摘要:
A braking device for a hub with an axle for a running wheel of a bicycle includes a brake carrier plate and an extension arm arranged on the brake carrier plate. The hub is connectable with the braking device via the axle at a drop-out end of a frame part of the bicycle. The brake carrier plate is connectable to a fastening element for a caliper of a disk brake on the frame part for the transmission of brake reaction forces via the extension arm. An adaptor is arranged at the fastening element, the adaptor allowing itself to be pushed together with the extension arm as soon as the axle of the hub is pushed into the drop-out end of the frame part for the mounting of the running wheel.
摘要:
Disclosed is a brake device for at least one axle of a wheel of a vehicle such as a bicycle for braking a brake drum which is connected to the wheel, having a brake carrier, a shoe element, a brake lever with a cam which is arranged between two shoe ends of the shoe element and is preloaded in that area. The shoe element is connected to the brake carrier by a holder and the cam is connected to the brake lever without a bearing, by means of which it can be pivoted. The brake device according to the present invention has the advantage that it can be produced mechanically in large numbers in a simple manner, its characteristics can be influenced by design measures, and it has a high level of efficiency, so that reduced actuating forces result and possibly simplified actuating elements may be used.
摘要:
Derailleur with at least two sprockets on a sprocket set which is located around a pedal axle of a bicycle, which sprockets are provided with chain transfer assistance measures to assist the transfer of the chain in upshifting or downshifting, whereby the shifting can be done under load in both of these directions. The chain transfer assistance measures comprise a tooth space with a spiral-shaped base, a conical rivet with an encircling sharp edge to locate the chain in the vicinity of its links between the chain plates, as well as bevels, recesses and steps, the totality of which optimize the chain transfer in both directions between sprockets which are coordinated with one another.
摘要:
A multiple sprocket chainwheel for bicycle derailleurs to drive a hub bushing on the rear wheel by means of at least two sprockets which have different numbers of teeth, and which are located non-rotationally on a chainwheel bushing, whereby spacing connecting rings with bearings and a drive bushing are located between the sprockets, which drive bushing is driven in the driving direction by the chainwheel bushing by means of a freewheel mechanism, whereby the connecting rings have clamping projections which can be inserted into clamping points on the sprockets, which makes possible it possible to have an alternating arrangement in series of a sprocket, a connecting ring, a sprocket, a connecting ring etc. The desired position of one sprocket in relation to another is achieved when a guide tooth on the inside diameter of the one sprocket coincides with the guide tooth on another sprocket. A packet of sprockets combined in this manner has an axially continuous guide tooth which, when located in a longitudinal groove on the circumference of the drive bushing, guarantees the angular position of each part slid onto the drive bushing. The multiple sprocket chainwheel, which can be modified or repaired without tools, can be treated as a pre-assembled component or as a replacement part, whereby its particular advantage is that the individual sprockets can be replaced, or the entire multiple sprocket chainwheel can be assembled manually by the customer.
摘要:
An internally plasticized vinyl chloride polymer with a polycaprolactone content ranging from 32 to 40% is prepared by polymerizing vinyl chloride in the presence of polycaprolactone. The graft copolymers show good transparency, homogeneity, and processing properties.The copolymers of the present invention can be used to produce materials used in medical applications, such as, blood bags and dialysis tubing.
摘要:
A petroleum stream measurement system includes a cell made of non-conductive material for passing a flowing petroleum stream. First and second sensors, spatially arranged with the cell and spaced at a predetermined distance apart, sense the capacitance of the petroleum stream and provides representative signals. A third sensor senses the capacitance of the petroleum stream and provides a corresponding signal. A fourth sensor senses the capacitance of the petroleum stream and provides a signal corresponding thereto. Apparatus receiving the signals from all the sensors derives the distribution of the different fluids within the petroleum stream.
摘要:
A system is provided having a superconductive cable (KA) which consists of a superconductive inner conductor (1), a screen arranged concentrically therewith and a dielectric applied (3) between the inner conductor and the screen. The screen (S) is constructed from a superconductive part (4) and a part (5) consisting of an electrically highly conductive material enclosing the latter, and in which the screen is enclosed with the inclusion of an intermediate space (9), used for feeding a liquid refrigerant through, by a cryostat (KR) which consists of two stainless steel tubes (6, 7) extending concentrically with one another and separated from one another by an intermediate space (8). In order to protect against abrasion of metallic parts, the surface of the screen (S) of the cable (KA), which is enclosed by the cryostat (KR), and/or of the cryostat (KR) is provided all around on its inner surface with a liner layer (10) made of an abrasion-resistant material with a lower friction coefficient compared with steel, which, when it encloses the screen (S) of the cable (KA), is permeable for the refrigerant.
摘要:
A clamp for securing a tubular or hose-shaped object on a support. The clamp includes a clamp jacket having first and second ends, wherein a first leg protrudes from the first end of the clamp jacket and a second leg projects from the second end of the clamp jacket. The first leg has a lug which in the open state protrudes in the direction of the second leg. The second leg includes a fastening section which can be inserted into a gap between the lug and a neighboring portion of the first leg located opposite the lug, wherein, in the closed state of the clamp, the lug is plastically deformed toward the outer side of the fastening section facing away from the first leg.