摘要:
A variator for ratio adjustment of a continuously variable chain drive transmission having one variator shaft (1) and one variator pulley (2) supported upon the variator shaft (1) and axially movable by pressurizing a variator pressure chamber (31). The variator shaft (1) has on one end an axial hole (10) through which the variator pressure chamber (31) and a second pressure chamber (8) can be loaded with pressure independent of each other. The pressure is supplied to the variator pressure chamber (31) via a first section (13) of the axial hole (10) and the pressure is supplied to the second pressure chamber (8) via a non-rotating pipe (7) and a second section (15) of the axial hole (10), the pipe (7) is situated within the first hole section (13). It is proposed that the pipe (7) has two axially adjacently disposed sealing rings (73) for reciprocal dynamic sealing of the pressure supplies to the variator pressure chamber (31) and to the second pressure chamber (8) and that the variator shaft (1) has a vent hole (9) discharging, on one side between the two sealing rings (73) and on the other side in a transmission inner space (94).
摘要:
The invention relates to water-soluble or water-swellable polymers that contain a) 20.0 to 98.97 mole-% of one or more repeating structural units originating from special monomers with sulfonic acid groups or the salts thereof such as e.g. 2-acrylamido-2-methyl-propanesulfonic acid or the salts thereof, b) 1.0 to 60.0 mole-% of one or more repeating structural units containing an amide group and d) 0.01 to 8.0 mole-% of one or more repeating structural units originating from special crosslinking agents with at least three polymerizable double bonds. The polymers for example have an advantageous sensory property profile and are highly suitable as thickening agents even in salt-containing compositions. They are furthermore advantageously suitable for producing cosmetic, dermatological or pharmaceutical compositions.
摘要:
The invention relates to a method or an arrangement for the clock synchronization of a plurality of distributed modules of an information or communication system, said modules being coupled via a packet-switched network. At least two of said modules are controlled by a local clock generator of the modules using an adjustable frequency, and a clock signal is transmitted via the network in the form of clock signal packets in a synchronous minter with respect to the local clock of the modules. One of said at least two modules takes over the function of a master module, and all remaining said at least two modules, the slave module(s), synchronize the local clock of the modules with the clock of the master module, wherein said slave modules ascertain a measurement for the deviation of the local clock generator of the modules relative to the clock generator of the master module by comparing the clock signal transmitted by the master module with the clock signal of the modules and use said measurement in order to regulate the local clock generator of the modules.
摘要:
An ethylene homo- or copolymer composition is stabilized by suitable stabilizers conferring improved resistance against thermo-oxidative degradation, which occurs in the presence of liquid fuels comprising biodiesel, such as vegetable oil esters, in combination with oxygen. The stabilizers comprise a combination of at least two sterically hindered amine compounds or N-hydroxy- or N-oxylderivatives thereof in an amount of from 100 to 10 000 ppm. Such ethylene homo- or copolymer composition is highly suitable for articles of plastic and components for the transport and storage of liquid fuels comprising biodiesel, such as vegetable oil esters, preferably for plastic fuel tanks for automotive vehicles.
摘要:
Method to improve the barrier properties of composite gas cylinders and high pressure gas cylinder having enhanced barrier propertiesThe instant invention pertains to a new method for improving the barrier properties of composite gas cylinders for the storage of gas, by sheathing the outer surface of a composite gas cylinder with a tubular plastic film comprising a barrier material and shrinking it by heat treatment to approach a strong connection. The composite gas cylinder comprises an inner liner made of polyolefin and an outer fibre-reinforced, pressure supporting layer. The barrier material may comprise polyamide, polyester, halogen substituted polymer, EVOH or a metallization. The invention pertains also to a high pressure composite gas cylinder having enhanced barrier properties and its use as a fuel tank in gas driven automotive vehicles equipped with a combustion engine.
摘要:
Copolymers are described, containing a) 20.0-99.9% by weight of one or more structural units resulting from polymerizable substances of the following structural formula (I) in which R2 is a linear or branched saturated alkyl radical having 6 to 200 carbon atoms or a linear or branched, mono- or, polyunsaturated alkenyl radical having 6 to 200 carbon atoms, and R1, Y, n and m are each as defined in claim 1, b) 0.1-20.0% by weight of one or more structural units resulting from polymerizable quaternary ammonium compounds, and c) 0-60.0% by weight of one or more nonionic structural units resulting from one or more further polymerizable substances. The copolymers are advantageously suitable, for example, for the production of cosmetic, dermatological or pharmaceutical formulations.
摘要:
Water-soluble or water-swellable polymers are described, containing a) 20.0 to 98.99 mole percent of one or more independently recurring structural units of the formula (1) and b) 1.0 to 79.99 mole percent of one or more independently recurring structural units of the formula (2), and c) 0.01 to 8.0 mole percent of one or more independently recurring cross-linking structural units, which are obtained from one or more monomers having at least two olefinic double bonds. The polymers are suitable, for example, as thickeners or yield point formers, in particular in cosmetic, dermatological or pharmaceutical compositions.
摘要:
Copolymers are described, containing a) 20.0-99.9% by weight of one or more structural units resulting from polymerizable substances of the following structural formula (I) in which R2 is a linear or branched saturated alkyl radical having 6 to 200 carbon atoms or a linear or branched, mono- or polyunsaturated alkenyl radical having 6 to 200 carbon atoms, and R1, Y, n and m are each as defined in claims 1, b) 0.1-20.0% by weight of one or more structural units resulting from polymerizable quaternary ammonium compounds, and c) 0-60.0% by weight of one or more nonionic structural units resulting from one or more further polymerizable substances. The copolymers are advantageously suitable, for example, for the production of cosmetic, dermatological or pharmaceutical formulations.
摘要:
A method and device for controlling an extracorporeal blood treatment apparatus, which can be operated as a hemodialysis apparatus, hemofiltration apparatus or hemodiafiltration apparatus, are disclosed. The method and device make provision, apart from balancing the fluids as a function of the weights of the containers, for the measurement of the weight reduction or increase of at least one of the containers in the time interval in which the pump assigned to the respective container performs a preset number of revolutions or pump strokes. The change in the weight of the container for a half or one pump revolution can be determined. The delivery rate of the respective pump is ascertained from the measured weight reduction or increase in the specific time interval, thereby permitting the precise determination of the actual delivery rate of one or more pumps. The actual delivery rates of all the pumps are preferably monitored.
摘要:
At least first and second terminals are connected to a packet-oriented network, with real-time critical data being transmitted via payload data frames from the first terminal to the second terminal. In cases in which no real-time critical data is available for transmission, fill frames signaling this fact are transmitted at a minimum transmission rate from the first to the second terminal. The transmission quality is determined by taking into consideration the payload data frames and fill frames received at the second terminal within a particular period.