摘要:
The invention relates to a device for axially conveying body fluids. The aim of the invention is to embody the inflow and outflow area of an axial pump in such a way that the flow is not separated even when it is diverted, thereby maintaining a substantially non-disrupted flow profile.
摘要:
In a fuel supply system for an internal combustion engine including a fuel tank with an activated carbon canister in communication therewith for removing hydrocarbons from the fuel tank venting gases, the activated carbon canister is vented selectively by compressed air conducted from a pressurized air supply for the engine through the canister under the control of a valve which, during flushing of the activated carbon canister, blocks the communication line between the fuel tank and the activated carbon canister and by which the fuel vapors are returned to an engine intake manifold via a suction line, or during normal operation of the engine, by air sucked through the activated carbon container to an inlet manifold of the engine. The activated carbon container can be flushed with positive pressure when the engine is operated with supercharging and with negative pressure when the engine is operated in a normally aspirated fashion.
摘要:
In a fuel supply arrangement for supplying fuel from a fuel tank to the fuel injectors of an internal combustion engine by an electrically operated fuel pump, a first fuel pressure level adequate for normal engine operation is provided by the fuel pump and means are provided for increasing the fuel injection pressure provided by the pump for supplying fuel at a higher pressure level to the fuel injectors during an engine start-up or warm-up phase.
摘要:
A method for adjusting an internal combustion engine with variable valve timing wherein the current position of the accelerator pedal is associated with a set air mass and a set pressure. The set pressure is compared with a reference pressure and control of the set air mass takes place via the throttling device in the intake pipe when the pressure falls below the reference pressure, and control of the set air mass is carried out via the engine valves when the pressure exceeds the reference pressure.
摘要:
In an internal combustion engine for motor vehicles with an engine shutdown driven capability, wherein the engine has intake and exhaust valves with a variable timing valve actuating system permitting the generation of an engine braking torque depending on the state of vehicle operation, the intake and exhaust valves are controlled during shutdown engine driven operation such that at least on type of valves, that is either all the intake or all the exhaust valves remain closed.
摘要:
Colorants are obtained by reacting a dyestuff which is free from ionic groups and has.gtoreq.2 NH.sub.2 groups which are preferably arranged in such a manner that they do not participate in the resonance of the chromophore with such an amount of a (cyclo)aliphatic diisocyante so as to form an adduct that still contains at least two free NCO groups, and subsequently reacting this adduct with a (cyclo)aliphatic diamine, to form an adduct suitable for dyeing and pigmenting macromolecular substances, in particular for coloring PUR-based paints, coatings and laminates.
摘要:
An exhaust-gas turbocharger for an internal-combustion engine is described, its turbine having a double flow housing with two channels for supplying the exhaust gases to the turbine wheel, of which on channel can be closed off as a function of a variable operating parameter by means of a sliding sleeve which is mounted in the housing so as to be axially displaceable by means of a control device. To ensure a clearly defined relationship between the adjustment of the sliding sleeve and the input variables and to create a heat-resistant control device, the sliding sleeve is connected to an axially fixed and circumferentially rotable driving ring via a positive sliding fit driving the sliding sleeve in the circumferential direction, a slot pin fixed to the housing engaging into an oblique helical groove in the sliding sleeve, and a shaft engaging on the driving ring via a positive connection and being guided radially out of the housing via a bearing in the latter.
摘要:
Dyestuffs of the formula ##STR1## wherein D, R, R.sub.1 and R.sub.2 have the meaning indicated in the description,and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibres, filaments and fabrics of wool, silk or synthetic polyamide or polyurethane fibres, and for dyeing and printing natural or regenerated cellulose with dyeings and prints which are fast to washing.
摘要:
Dyestuffs of the formula ##STR1## wherein the substituents have the meaning indicated in the description,and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibres, filaments and fabrics of wool, silk or synthetic polyamide or polyurethane fibres and for dyeing and printing natural or regenerated cellulose with dyeings and prints which are fast to washing.The dyeings obtained with the dyestuffs are distinguished by good to very good fastness properties, in particular by outstanding fastness to wet processing.
摘要:
Process for the preparation of thioindigo compounds of the formula ##STR1## in which A and B designate identical or different optionally substituted benzene rings or benzene rings onto which further carbocyclic and heterocyclic rings are fused,characterized in that compounds of the formula ##STR2## in which A and B have the meaning indicated above andX designates halogen, such as bromine and, preferably, chlorine,are reacted in a liquid mixture of an aluminium halide, an alkali metal halide and SO.sub.2 and the resulting intermediate product is then oxidized in a manner which is in itself known, if appropriate after first being isolated, and the mixture is worked up to give the compounds of the formula (I).