Abstract:
The invention pertains to a device for acquiring signals from sensors (1) installed in a motor vehicle, where at least two sensors, which are connected by electrical conductors to a source of electrical voltage (2) and to an evaluation unit (3), are mounted in different positions in the vehicle. To simplify the installation of the device, the sensors (1) are attached a certain distance apart to a common ribbon cable (4) with parallel electrical conductors, which cable has at least one conductor which can be connected to the voltage source (2) to supply power to the sensors (1) and several signal conductors, which can be connected to the evaluation unit (3) and possibly also to the voltage source (2), the number of which corresponds to the number of sensors to be connected. All of the sensors (1) are connected to the power-supply conductor, and each one is connected individually to one of the signal conductors.
Abstract:
A cooling apparatus for a motor vehicle having a drive which comprises two motors, of which one is an internal combustion engine and the other is an electric motor (3) which is connected to an inverter (2), which is connected to an electrical energy source (1), via electrical cables (4, 5). For the purpose of cooling the energy source (1) and the inverter (2), the latter are each equipped with at least one cooling element, which directly surrounds the energy source or inverter, for conducting a fluid coolant. The electrical cables (4, 5) are combined with at least two pipes which at one end are connected to the cooling elements of the energy source (1) and inverter (2) and at the other end are connected to a heat exchanger (7) in order to form a coolant circuit.
Abstract:
A method for wiping the brakes of a motor vehicle under wet conditions is described, whereby the brake pads are applied to the braked element under low pressure. This wiping of the brakes is hardly noticeable or not noticeable at all when the wiping operation is triggered in an instant in which the change in the accelerator pedal position or the change in the vehicle velocity exceeds a predefined threshold value.
Abstract:
Oligomeric azo dyes having an alternating construction made up of diazo components and coupling components, containing in the molecule at least 3 units of the structure I--[D--K]-- (I)where D is a tetrazo component of the formula II ##STR1## where x is a direct bond, oxygen, sulfur or a bridge member of the formula --NHCO--, --NHCONH--, --CO--, --NHSO.sub.2 --, --SO.sub.2 NHSO.sub.2 --, --SO.sub.2 --, --SO.sub.2 --NH--A--NH--SO.sub.2 --, -NAlk-CO-, -NAlk-CO-NAlk-, -NAlk-CO--NH--, -NAlk-SO.sub.2 --, --SO.sub.2 -NAlk-SO.sub.2 --, --SO.sub.2 -NAlk-A-NAlk-SO.sub.2 --, --SO.sub.2 -NAlk-A-NH--SO.sub.2 --, --CH.dbd.CH--, --CH.sub.2 CH.sub.2 --, --C(CH.sub.3).sub.2 --, --CH.sub.2 -- or --NH--,R.sup.1 and R.sup.2 are each independently of the other hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkanoyl, cyano, carboxyl, hydroxysulfonyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, hydroxyl, carbamoyl, mono- or di-(C.sub.1 -C.sub.4)-alkyl-carbamoyl, sulfamoyl, mono- or di-(C.sub.1 -C.sub.4)-alkyl-sulfamoyl, fluorine, chlorine, bromine, nitro or trifluoromethyl andR.sup.3 and R.sup.4 are each independently of the other hydrogen, hydroxysulfonyl or carboxyl, andwhere K is a coupling component III of the aminonaphthol series, it being possible for up to 90 mol % of component III to be replaced by a coupling component IV, are prepared and used for dyeing natural or synthetic substrates.
Abstract:
Azo dyes of the formula ##STR1## where the ring A may be benzofused, n is 0 or 1, and R.sup.1 -R.sup.8 are as defined, as pH-dependent markers for hydrocarbons, hydrocarbons containing the above-mentioned azo dyes, and a method for detecting these azo dyes in hydrocarbons.
Abstract:
##STR1## where p is from 1 to 2 and q is from 0 to 1 are useful in free form or as copper, chromium, iron, cobalt or nickel complexes for dyeing leather.
Abstract:
Basic azo dyes useful for dyeing or printing polymeric material have the formula ##STR1## where R.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkanoylamino,R.sup.2 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or a radical of the formula CO-X, andX is hydroxyl, C.sub.1 -C.sub.4 -alkoxy, amino, mono- or di(C.sub.1 -C.sub.6 -alkyl)amino or a radical of the formula ##STR2## where n is 0 or 1,R.sup.3, R.sup.4 and R.sup.5 are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl,R.sup.6 is hydrogen or C.sub.1 -C.sub.4 -alkyl,L is C.sub.2 -C.sub.6 -alkylene, andAn.sup..crclbar. is one equivalent of an anion,with the proviso that at least one basic or quaternary radical is present in the molecule.
Abstract:
3-Aminophenylpentane-1,5-diones of the formula I ##STR1## where R.sup.1 and R.sup.2 are, independently of one another, hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.4 -C.sub.8 -cycloalkyl, cyano-C.sub.2 -C.sub.4 -alkyl, hydroxy-C.sub.2 -C.sub.4 -alkyl, chloro-C.sub.2 -C.sub.4 -alkyl, phenyl-C.sub.1 -C.sub.2 -alkyl which can be substituted by chlorine, or phenyl which can be substituted by clorine or methyl, or R.sup.1 and R.sup.2 form, together with the nitrogen to which they are bonded, a heterocyclic radical which can contain further hetero atoms,R.sup.3 is hydrogen, fluorine, chlorine, C.sub.1 -C.sub.2 -alkyl or C.sub.2 -C.sub.5 -alkoxy or, if R.sup.3 is ortho to --NR.sup. R.sup.2, R.sup.3 and R.sup.2 together form C.sub.2 -C.sub.4 -alkylene, which can be substituted, or 1,2-phenylene andA is naphthyl or a radical of the formula II ##STR2## where X is hydrogen, fluorine, chlorine, bromine, C.sub.1 -C.sub.5 -alkyl, hydroxyl, C.sub.1 -C.sub.5 -alkoxy, phenoxy, phenyl-C.sub.1 -C.sub.2 -alkoxy, cyano or phenyl andn is 1 or 2,with the proviso that R.sup.1 and R.sup.2 are not both methyl when A is phenyl, are described.
Abstract:
Triphenylmethane dyes of the formula ##STR1## where each R.sup.1 is independently of the others hydrogen or substituted or unsubstituted C.sub.1 -C.sub.6 -alkyl, or two R.sup.1 radicals together with the nitrogen atom joining them form a heterocyclic radical,R.sup.2 and R.sup.5 is independently of the others hydrogen or C.sub.1 -C.sub.4 -alkyl,R.sup.3 and R.sup.4 is independently of the others hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or halogen,An.sup..crclbar. is one equivalent of an anion, andn is 1 or 2,preparable from piperazine derivatives as intermediates, are useful for coloring paper.