Abstract: A vacuum brake force booster for a motor vehicle brake system comprising: a force input member which is movable along a longitudinal axis and which is or can be coupled to a brake pedal, a control valve arrangement which can be actuated by the force input member, a chamber arrangement which is arranged in a housing and which has at least one working chamber and at least one vacuum chamber separated from one another by means of a movable wall and which has a force output member for transmitting an actuating force, wherein the at least one working chamber can be connected selectively to a vacuum source or to the atmosphere, wherein the control valve arrangement has a control valve housing which is coupled to the at least one movable wall for conjoint movement therewith, wherein the control valve arrangement has a force-transmitting arrangement which has a degree of axial play and which is arranged in the force transmission path between the force input member and the force output member.

Abstract: A vacuum brake force booster for a motor vehicle brake system comprising: a force input member which is movable along a longitudinal axis and which is or can be coupled to a brake pedal, a control valve arrangement which can be actuated by the force input member, a chamber arrangement which is arranged in a housing and which has at least one working chamber and at least one vacuum chamber separated from one another by means of a movable wall and which has a force output member for transmitting an actuating force, wherein the at least one working chamber can be connected selectively to a vacuum source or to the atmosphere, wherein the control valve arrangement has a control valve housing which is coupled to the at least one movable wall for conjoint movement therewith, wherein the control valve arrangement has a force-transmitting arrangement which has a degree of axial play and which is arranged in the force transmission path between the force input member and the force output member.

Abstract: In an apparatus and method for optimizing the exhaust gas burnout in combustion plants having a solid bed combustion zone and an exhaust gas burnout zone wherein oxygen-containing gas is injected into the exhaust gas flow in the burnout zone by way of a plurality of secondary gas injection nozzles, wherein each injection nozzle is provided with a control valve, means are provided for determining the presence of incompletely burned exhaust gas components in the exhaust gas burn out zone and a control unit converts the signals into control signals by which the valves or group of valves are individually controlled so as to inject oxygen containing gas into the exhaust gas flow in order to concentrate the injection of the oxygen containing secondary gas into the areas in which incompletely burned exhaust gas components are present.

Abstract: The invention relates to a packaging assembly for printing plates and a method for packing the printing plates including a packaging container having a base, and at least one printing plate positioned in the container adjacent the base, wherein an interface having a coefficient of friction of less than 0.30 is disposed between the plate and the base.

Abstract: In an apparatus and method for optimizing the exhaust gas burnout in combustion plants having a solid bed combustion zone and an exhaust gas burnout zone wherein oxygen-containing gas is injected into the exhaust gas flow in the burnout zone by way of a plurality of secondary gas injection nozzles, wherein each injection nozzle is provided with a control valve, means are provided for determining the presence of incompletely burned exhaust gas components in the exhaust gas burn out zone and a control unit converts the signals into control signals by which the valves or group of valves are individually controlled so as to inject oxygen containing gas into the exhaust gas flow in order to concentrate the injection of the oxygen containing secondary gas into the areas in which incompletely burned exhaust gas components are present.

Abstract: A brake booster having an input element (20) for actuating the brake booster is described. The input element (20) at its end facing a brake pedal has a receiving sleeve (20A) for an actuating rod (34), which is to be coupled to the brake pedal. Disposed inside the receiving sleeve (20A) is a spring sleeve (36) comprising at least one spring element (36C, 36D), which cooperates with the actuating rod (34) when the latter is brought into a detent position in relation to the input element (20). The spring element (36C, 36D) extends substantially in axial direction and is actuable in a spring-elastic manner in a radially outward direction. The spring sleeve (36) at its brake pedal-side end has a radially outwardly extending portion (36F), which is fastened by means of a bead (20D) of the receiving sleeve (20A) to the receiving sleeve (20A).

Abstract: A brake booster having an input element (20) for actuating the brake booster is described. The input element (20) at its end facing a brake pedal has a receiving sleeve (20A) for an actuating rod (34), which is to be coupled to the brake pedal. Disposed inside the receiving sleeve (20A) is a spring sleeve (36) comprising at least one spring element (36C, 36D), which cooperates with the actuating rod (34) when the latter is brought into a detent position in relation to the input element (20). The spring element (36C, 36D) extends substantially in axial direction and is actuable in a spring-elastic manner in a radially outward direction. The spring sleeve (36) at its brake pedal-side end has a radially outwardly extending portion (36F), which is fastened by means of a bead (20D) of the receiving sleeve (20A) to the receiving sleeve (20A).

Abstract: A process for a combined selective thermal oxidation and photooxidation of hydrocarbons adsorbed onto zeolite matrices. A highly combined selective thermal oxidation and photooxidation of unsubstituted or alkyl substituted alkanes, alkenes, aromatics and cycloalkyls in solvent free zeolites under dark thermal conditions or under irradiation with visible light. The process oxidizes hydrocarbons almost completely selectively without substantial production of byproducts.

Abstract: The invention relates to a plate valve (1) as used for the actuator of a control valve. It comprises an inlet (2) with a sealing seat (3) around which the openings of the outlet (7) are arranged, and it has two plates (4), (5), between which there is an interspace (13). Both plates (4), (5) are attached to the housing (11) by springs (6) in a spring space (12). The spring space (12) is operatively connected to a proportional valve by an opening (14) and a line (9). If the pressure in the spring space (12) is lowered by the proportional valve, the additional plate (5) first of all drops as a result and thereby exposes the outflow openings (10) in the large plate (4). There is a slight flow of the oil from the inlet (2) through the orifice plates (8) situated in the plate (4) and through the outflow openings (10) to the openings of the outlet (7). In a second stage, the plate (4) then drops and thereby exposes the openings of the outlet (7).

Abstract: A process for selective thermal oxidation of hydrocarbons adsorbed onto zeolite matrices. A highly selective thermal oxidation of unsubstituted or alkyl substituted alkanes, alkenes, aromatics and cycloalkyls is carried out in solvent free zeolites under dark thermal conditions. The process oxidizes hydrocarbons almost completely selectively without substantial production of byproducts.

Abstract: A process for selective thermal oxidation or photooxidation of hydrocarbons adsorbed onto zeolite matrices. A highly selective thermal oxidation and photooxidation of unsubstituted or alkyl substituted alkanes, alkenes, aromatics and cycloalkyls in solvent free zeolites under dark thermal conditions or under irradiation with visible light. The process oxidizes hydrocarbons almost completely selectively without substantial production of byproducts.

Abstract: A selective photooxidation process for the conversion of hydrocarbon molecules to partially oxygenated derivatives, which comprises the steps of adsorbing a hydrocarbon and oxygen onto a dehydrated zeolite support matrix to form a hydrocarbon-oxygen contact pair, and subsequently exposing the hydrocarbon-oxygen contact pair to visible light, thereby forming a partially oxygenated derivative.

Abstract: This actuating drive (1) for a control valve (2) has a control circuit which sets the actuating drive (1) to correspond with a specified required value from an overriding installation control system. It has, in addition, a main piston (6) sliding in a main cylinder (5) with a drive volume (7), on one side of the main piston (6), which can be acted on in a controlled manner by oil under pressure and has a plate valve (17) fitted upstream of the drive volume (7).The intention is to create an actuating drive, for a control valve, whose dynamic behavior can be improved by relatively simple means. This is achieved by the plate valve (17) being provided with a separate reservoir volume, connected to a drain appliance, for the oil emerging from the plate valve (17).

Abstract: This operating mechanism for a hydraulic actuator (2) having a pressure-proportional actuating signal is provided with an amplifier (33) for electric signals, with at least one electrohydraulic transducer (24) connected upstream of the hydraulic actuator (2) and with a hydraulic discharge amplifier connected between the electrohydraulic transducer (24) and the actuator (2). The aim is to provide an operating mechanism for a hydraulic actuator having a pressure-proportional actuating signal which can be produced simply and cost-effectively. This is achieved by interconnecting between the actuator (2) and the hydraulic discharge amplifier a piston/cylinder arrangement (4) acting as a transducer.

Abstract: This pipe system has a pressurized feed conduit and an outflow conduit for a hydraulic fluid. It furthermore has parts (6, 8, 10) for connection to a hydraulically actuable device.The intention is to create a pipe system which is improved as regards safety of operation and fire protection and has a smaller space requirement. This is achieved by the fact that the pressurized feed conduit is arranged inside the outflow conduit, this arrangement being maintained right into the interior of the hydraulically actuable device.

Abstract: A supply circuit for a hydraulic fluid system has at least one pressure generation device, at least one connecting valve, a main line and a safety deactivation unit. The supply circuit permits a hydraulic fluid to be fed in such a way that, in all operating states, occurrence of pressure surges in the system is prevented. The connecting valve is designed as a slide valve with three control edges for regulating filling, operation and testing functions. A plate valve, in fluid communication with the slide control valve, is designed as an outflow amplifier and fulfills the safety related tasks.

Abstract: This hydraulic safety and regulating system for a steam feed of a turbine has a rapid-action (4) and a steam regulating valve (3), and a line system monitored by a safety downward-control unit (22). The monitored line system is designed as both a power oil supply and as a safety oil system. This results in a hydraulic safety regulating system which is simple to build and has a reduced number of possible leakage points.

Abstract: This hydraulic valve has a housing (2) with a feed line (12) and a discharge line (14) for a fluid. A sealing point is provided between the feed line and discharge line. A spring acts in the closing direction on the sealing point via a piston.The aim is to create a hydraulic valve which requires no additional energy source. This is achieved when the piston (8, 23) can be moved in the opening direction merely by a total of the pressures present in the feed line (12) and in the discharge line (14).

Abstract: Connecting valve and hydraulic oil safety and power system in which the connecting valve is used.This connecting valve (1) has at least one sealing location (5) which is actuated by means of a piston/cylinder arrangement. A piston (3) is subjected to a pressure fluid and moved against the force of a spring (7).A connecting valve (1) is created which can be inspected for freedom of movement without influencing operation. The hydraulic oil safety and power system should be particularly operationally reliable by means of the connecting valve (1) in accordance with the invention. This is achieved by at least two pipes (17, 18) entering the drive volume (2) offset in the axial direction, of which pipes only one first pipe (17) is initially effective.

Abstract: This actuating drive (1) has a main piston (4) which can be operated by means of an oil pressure and a pilot control system in effective connection to the main piston (4) by means of a linkage (15). The pilot control system includes a control orifice (14) controlling the oil pressure at the main piston (4) and a pilot control piston arrangement (18) which can be operated hydraulically.The actuating drive (1) is to be designed in such a way that it has improved dynamic characteristics during operation. This is achieved by the fact that the pilot control piston arrangement (18) can be operated by means of an electrohydraulic valve which is triggered by an electronic control unit (31).