Abstract: The invention relates to a fuel injector (1) for operating with combustible gas. The fuel injector has a plurality of combustible-gas nozzle valve elements (9), and the stroke of each of the combustible-gas nozzle valve elements can be controlled by means of a paired hydraulic piston control assembly (55) of the fuel injector, wherein each piston control assembly is formed by two control chambers (59, 61) and a piston section (63) on the combustible-gas nozzle valve element paired with the piston control assembly, said piston section separating the control chambers in such a way that their volumes can be varied, and the fuel injector is designed to control the stroke of the combustible-gas nozzle valve elements in tandem using a 3/2-way valve (67), by means of which the hydraulic pressure in one of the two control chambers of the piston control assemblies is controlled.

Abstract: Arrangement comprising: a chamber that is formed between a first receptacle and a second receptacle for a rod-shaped element, wherein the receptacles open out to the chamber on opposite end-face sides thereof; a rod-shaped element that is accommodated in the receptacles via a respective section with radial play, in this regard with a receptacle radial play, the rod-shaped element passing through the chamber; and an annular body that is situated in the chamber and through which the rod-shaped element passes with radial play, in this regard an annular body radial play, wherein the annular body radial play is less than the receptacle radial play, wherein the arrangement has a first media side and a second media side that are connected to the chamber via the first receptacle and second receptacle, respectively, wherein the annular body is provided to be pressed into contact against an end-face side of the chamber.

Abstract: The invention relates to a fuel injector (1) for operating with combustible gas. The fuel injector has a plurality of combustible-gas nozzle valve elements (9), and the stroke of each of the combustible-gas nozzle valve elements can be controlled by means of a paired hydraulic piston control assembly (55) of the fuel injector, wherein each piston control assembly is formed by two control chambers (59, 61) and a piston section (63) on the combustible-gas nozzle valve element paired with the piston control assembly, said piston section separating the control chambers in such a way that their volumes can be varied, and the fuel injector is designed to control the stroke of the combustible-gas nozzle valve elements in tandem using a 3/2-way valve (67), by means of which the hydraulic pressure in one of the two control chambers of the piston control assemblies is controlled.

Abstract: Tool system 1 comprising a tool holder 2 that has an insert seat 17 for receiving a cutting insert 6, and comprising a clamping element 4 that has an opening 26 for receiving a clamping means 15, an interface 30 being arranged between the tool holder 2 and the clamping element 4, and channels for the purpose of cooling by means of a fluid being arranged in the tool holder 2 and the clamping element 4, and a sealing means 31 being arranged in the region of the interface 30.

Abstract: The invention relates to a fuel injector (1), comprising: a pre-chamber (17) within the injector, a high-pressure injector part (3) for discharging combustible gas, which high-pressure injector part has a nozzle unit (5) and a reciprocating nozzle valve element (7), a nozzle-side end section of which is accommodated in a high-pressure chamber (11) of the high-pressure injector part (3), a pre-chamber assembly (39), within the framework of which the high-pressure chamber (11) of the high-pressure injector part (3) is separated over a nozzle-side end section, the high-pressure chamber being surrounded by the pre-chamber (17).

Abstract: The invention relates to a fuel injector (1), comprising: a pre-chamber (17) within the injector, a high-pressure injector part (3) for discharging combustible gas, which high-pressure injector part has a nozzle unit (5) and a reciprocating nozzle valve element (7), a nozzle-side end section of which is accommodated in a high-pressure chamber (11) of the high-pressure injector part (3), a pre-chamber assembly (39), within the framework of which the high-pressure chamber (11) of the high-pressure injector part (3) is separated over a nozzle-side end section, the high-pressure chamber being surrounded by the pre-chamber (17).

Abstract: The invention relates to a fuel injector arrangement (1) comprising a number of fluid supply paths (29, 31, 39), namely, a first (29), a second (31) and a third fluid supply path (39). The fuel injector arrangement (1) has a first switching device (43) in the second fluid supply path (31). Said first switching device, controlled by the fluid pressure in the third fluid supply path (39), opens or blocks the second fluid supply path (31). The fuel injector arrangement (1) has a second switching device (49) in the first fluid supply path (29). Said second switching device, controlled by the fluid pressure downstream of the first switching device (43) in the second fluid supply path (31), opens or blocks the first fluid supply path (29).

Abstract: The invention relates to a fuel injector arrangement (1) comprising a number of fluid supply paths (29, 31, 39), namely, a first (29), a second (31) and a third fluid supply path (39). The fuel injector arrangement (1) has a first switching device (43) in the second fluid supply path (31). Said first switching device, controlled by the fluid pressure in the third fluid supply path (39), opens or blocks the second fluid supply path (31). The fuel injector arrangement (1) has a second switching device (49) in the first fluid supply path (29). Said second switching device, controlled by the fluid pressure downstream of the first switching device (43) in the second fluid supply path (31), opens or blocks the first fluid supply path (29).

Abstract: Arrangement comprising: a chamber that is formed between a first receptacle and a second receptacle for a rod-shaped element, wherein the receptacles open out to the chamber on opposite end-face sides thereof; a rod-shaped element that is accommodated in the receptacles via a respective section with radial play, in this regard with a receptacle radial play, the rod-shaped element passing through the chamber; and an annular body that is situated in the chamber and through which the rod-shaped element passes with radial play, in this regard an annular body radial play, wherein the annular body radial play is less than the receptacle radial play, wherein the arrangement has a first media side and a second media side that are connected to the chamber via the first receptacle and second receptacle, respectively, wherein the annular body is provided to be pressed into contact against an end-face side of the chamber.

Abstract: Tool system 1 comprising a tool holder 2 that has an insert seat 17 for receiving a cutting insert 6, and comprising a clamping element 4 that has an opening 26 for receiving a clamping means 15, an interface 30 being arranged between the tool holder 2 and the clamping element 4, and channels for the purpose of cooling by means of a fluid being arranged in the tool holder 2 and the clamping element 4, and a sealing means 31 being arranged in the region of the interface 30.

Abstract: The invention relates to a combustion gas injector assembly (1) comprising a combustion gas injector (3) having groups (11a,b,c) of combustion gas nozzle openings distributed around the periphery, each group having at least one combustion gas nozzle opening (13), a combustion gas nozzle valve member (9a,b,c) of the combustion gas injector (3), which member can be controlled in the open position and closed position, is associated with each group (11a,b,c) of combustion gas nozzle openings, in order to selectively discharge the combustion gas via the at least one combustion gas nozzle opening (13). The combustion gas injector assembly (1) is configured to control the combustion gas nozzle valve members (9a,b,c) successively with a predetermined time offset (T) into the closed position.

Abstract: The invention relates to a combustion gas injector assembly (1) comprising a combustion gas injector (3) having groups (11a,b,c) of combustion gas nozzle openings distributed around the periphery, each group having at least one combustion gas nozzle opening (13), a combustion gas nozzle valve member (9a,b,c) of the combustion gas injector (3), which member can be controlled in the open position and closed position, is associated with each group (11a,b,c) of combustion gas nozzle openings, in order to selectively discharge the combustion gas via the at least one combustion gas nozzle opening (13). The combustion gas injector assembly (1) is configured to control the combustion gas nozzle valve members (9a,b,c) successively with a predetermined time offset (T) into the closed position.

Abstract: A method for producing finely structured surfaces, in particular in plastics, includes a) applying at least one coating compound on at least one substrate; b) forming a fine structure by a die, which has the negative of a fine structure, c) curing the resultant finely structured coating compound, obtaining a substantially cured coating; and d) separating the finely structured coating from the die, wherein steps d) and c) can also be carried out in the reverse order.

Abstract: A method for producing finely structured surfaces, in particular in plastics, includes a) applying at least one coating compound on at least one substrate; b) forming a fine structure by a die, which has the negative of a fine structure, c) curing the resultant finely structured coating compound, obtaining a substantially cured coating; and d) separating the finely structured coating from the die, wherein steps d) and c) can also be carried out in the reverse order.

Abstract: Carotene is recovered from a native fat or oil in five process steps in an economical industrial process. The native fat or oil is catalytically reacted in known manner with an alkanol containing up to 4 carbon atoms to form fatty acid alkyl ester and glycerol. The ester phase of the reaction mixture is subjected to distillation to remove the fatty acid alkyl ester. The distillation residue obtained in the second process step is saponified, carotene is extracted from the product obtained in the third process step and the extract phase is concentrated by evaporation. A yield of at least about 80% is achieved. At the same time, a fatty acid alkyl ester suitable for further processing to fatty alcohol is provided.

Abstract: The invention relates to an improved process for the production of alkyl and/or alkenyl oligoglycosides corresponding to formula (I):R.sup.1 O-?G!.sub.p (I)in which R.sup.1 is an alkyl and/or alkenyl radical containing 4 to 22 carbon atoms, G is a sugar unit containing 5 or 6 carbon atoms and p is a number of 1 to 10, by acid-catalyzed acetalization of primary alcohols with monomeric carbohydrates, in which the reaction is carried out in a stirred tank reactor surmounted by a vacuum falling-film evaporator through which the mixture is pumped under reaction conditions.

Abstract: Emulsifiers particularly suitable for the production of storable, high-viscosity and sensorially light o/w emulsions contain from about 43% to about 99% by weight of an alkyl and/or alkenyl oligoglycoside and from about 1% to about 57% by weight of a fatty alcohol.

Abstract: Aliphatic alcohols with up to 30 and especially with 6 to 18 carbon atoms are separated from a mixture of alkyl glycosides and alcohols which are unreacted during the production of these glycosides, by single or multi-stage distillation. The alcohols are distilled off by a drop film evaporator to impoverish the reaction mixture to residual alcohol contents of 5 wt % and under. The strip load of the drop film evaporator is set to at least 1.0 m.sup.3 /h m, especially at least 1.8 m.sup.3 /h m and preferably at least 3.0 m.sup.3 /h m. It is possible to reduce the alcohol content of the product to any value between 0.1 and 5 wt % at acceptable overall cost.

Abstract: The invention relates to a process for the removal of alcohols containing up to 30 and, more particularly, between 8 and 18 carbon atoms by distillation from a mixture of alkyl glycosides and alcohols remaining unreacted in the production of these alkyl glycosides, the alcohols being removed in two stages, a falling-film evaporator being used in the first stage and a thin-layer evaporator being used in the second stage.