Abstract: The invention relates to a waste heat steam generator of a gas fired and steam powered generator. Said generator comprises a waste heat boiler to which exhaust gas of a gas turbine can be supplied. Said steam generator also comprises at least one evaporator which is located in the waste heat boiler and is used to produce process steam for a steam turbine. According to the invention, flue gas from a heating device can be supplied to the waste heat boiler and at least part of said flue gas can be extracted at at least one point of the waste heat boiler and redirected back to the inlet of said waste heat boiler.

Abstract: The invention relates to a domestic appliance having a device for locking a movable closing element, especially a door, cover, flap, or similar on a household appliance, particularly a dishwasher. The locking device includes a closing hook or closing pin disposed on the housing of the household appliance that engages with an engaging section in the closing element during locking and can be made to disengage therefrom during unlocking. The engaging section is formed by a cavity in the closing element.

Abstract: The invention relates to a lock for a movable closing element, especially a door, a cover, a flap, or similar on a domestic appliance such as a dishwasher, a washing machine, a refrigerator, or similar. The lock includes a closing hook that can be made to engage with the closing element when being closed and made to disengage therefrom when being opened. The closing hook can be made to engage with a cavity in the closing element.

Abstract: A door for a dishwasher, in particular for a domestic dishwasher, the door serving for opening and closing the interior of the dishwasher, comprising an inner door which, when the door is closed, is oriented towards the interior and has a surround comprising a top and a bottom periphery, which run essentially horizontally when the door is closed, and two side peripheries, which run essentially vertically when the door is closed, wherein a feed device for dispensing additives is arranged on the inner door, essentially centrally between the side peripheries and in the top third, in particular in the top quarter, of the region between the top and bottom peripheries.

Abstract: The invention relates to a device for electrically stimulating biological material that can be electrically stimulated. Said device comprises an electrode array which can be implanted so as to be in active contact with the biological material. Said electrode array comprises a two-dimensional arrangement of individual electrodes (Eij) that produce a stimulation field (S1, S2,) for the biological material when impinged upon with a stimulation signal, and means (2) for impinging the individual electrodes with the stimulation signals.

Abstract: A delivery pump for a delivery fluid comprises at least one valve plate (4), at least one actuatable pumping diaphragm (3) attached to the at least one valve plate (4) in a fluid-tight manner for delivering the delivery fluid, said pumping diaphragm (3) defining at least one pumping chamber (2) together with the at least one valve plate (4) and having at least one free fold (16), extending over at least one circumferential area of the at least one pumping diaphragm (3), for changing the volume of the at least one pumping chamber (2), at least one inlet opening (7) disposed in the at least one valve plate (4) for guiding the delivery fluid into the at least one pumping chamber (2), and at least one outlet opening (8) disposed in the at least one valve plate (4) for guiding the delivery fluid out of the at least one pumping chamber (2).

Abstract: The invention relates to a closing mechanism for a mobile closing element, especially for a door, a cover, a flap or the like on a household appliance, such as a dishwasher machine, a washing machine, a refrigerator or the like, said mechanism comprising a carriage that can be displaced between a locking position and an unlocking position and is loaded by means of a spring in the direction of the locking position. The carriage carries a closing hook that can be engaged with the closing element for the closing action and/or disengaged therefrom for the opening action. A rotary latch can co-operate with the closing element during the closing action. As a result of this co-operation, said rotary latch acts on the carriage in such a way that the carriage is displaced into the locking position during the closing of the closing element by the force of the spring.

Abstract: A positive displacement pump (1) for transporting a fluid with automatic adaptation to the compressibility of that fluid has a pumping chamber (15) with a variable volume (V) which is on the one hand delimited by a rigid chamber cover plate (10) and on the other hand by an elastic diaphragm (9), a suction channel (29) which is in flow connection with the pumping chamber (15) for sucking the fluid to be transported into the pumping chamber (15), an outlet channel (24) which is in flow connection with the pumping chamber (15) for discharging the fluid to be transported from the pumping chamber (15), and a drive device (29) for cyclically increasing and reducing the current volume (V) of the pumping chamber (15), with the drive device (29) being connected to the diaphragm (9) by means of a diaphragm connecting element (34; 34a; 34b) which is spring-mounted in the drive device (29) by means of a spring element (33; 33a; 33b).

Abstract: The aim of the invention is to provide an electric household appliance, especially a dishwasher, comprising a child-proof lock which has a simple and reliable design and is easy to operate. According to the invention, a means for selectively blocking or slide which can be moved between two positions blocks, in a first position, the movement of the locking member, thereby activating the child-safety feature, and in a second position of the means for selectively blocking, does not block the movement of the locking member, thereby deactivating the child-safety feature.

Abstract: A seal is provided between the door apron and the lip of the container in a dishwasher, enabling a high sealing performance to be obtained during the entire service life of the dishwasher and providing an esthetic design. The seal can be mounted in a reliable manner without any considerable expenditure of force, recycling of a used seal is possible via appropriate selection of materials and the seal can withstand the dynamic strain put upon the door seal of a dishwasher. The dishwasher is provided with a door seal which is made of an elastic synthetic material, consisting of a fixing area for connection to the edge of a rinsing container, a sealing element for arrangement on the underside of a dishwasher and which is arranged between the fixing area, and a sealing element, wherein the fixing area, sealing element and sealing strip form a single part.

Abstract: A steam transformer (200) receives steam through a steam inlet (203), and the steam is mixed in a mixing zone (231) with water entering through a water inlet (205). Steam cooled by contact with the water exits the steam transformer through a cold steam outlet (216). Between the mixing zone (231) and the cold steam outlet (216) is positioned a demister (214) that restricts the passage of water droplets. The steam transformer (200) is used to condition the steam temperature in steam turbine and combined cycle turbine facilities when adjustment of steam temperature is required, such as for cold starts of turbines. The steam transformer (200) may be installed into a bypass circuit or directly inline. A number of differing configurations and designs are disclosed.

Abstract: A combined cycle power plant (100) utilizing a compressor air bleed (62) as a source of heat for generating steam in a steam generator (78) for supplying the gland seals of the steam turbine (3) and as a motive force for an air ejector (90) for evacuating the condenser (8) during plant start-up. The compressor air bleed avoids delay awaiting the availability of steam from the heat recovery steam generator (4) without the need for an auxiliary boiler.

Abstract: A steam transformer (200) receives steam through a steam inlet (203), and the steam is mixed in a mixing zone (231) with water entering through a water inlet (205). Steam cooled by contact with the water exits the steam transformer through a cold steam outlet (216). Between the mixing zone (231) and the cold steam outlet (216) is positioned a demister (214) that restricts the passage of water droplets. The steam transformer (200) is used to condition the steam temperature in steam turbine and combined cycle turbine facilities when adjustment of steam temperature is required, such as for cold starts of turbines. The steam transformer (200) may be installed into a bypass circuit or directly inline. A number of differing configurations and designs are disclosed.

Abstract: The invention relates to a waste heat steam generator of a gas fired and steam powered generator. Said generator comprises a waste heat boiler to which exhaust gas of a gas turbine can be supplied. Said steam generator also comprises at least one evaporator which is located in the waste heat boiler and is used to produce process steam for a steam turbine. According to the invention, flue gas from a heating device can be supplied to the waste heat boiler and at least part of said flue gas can be extracted at at least one point of the waste heat boiler and redirected back to the inlet of said waste heat boiler.

Abstract: The aim of the invention is a device for coolant cooling in a gas turbine which, with a relatively simple construction and low plant complexity permits a particularly high degree of efficiency in using the heat produced on cooling the coolant from a gas turbine. Said aim is achieved, whereby a number of interconnected evaporator tubes for a flow medium, are arranged in a coolant channel, connected to a gas turbine, to form forced throughflow steam generator. Said device is preferably used in a gas and steam unit with a waste heat steam generator on the exhaust gas side of a gas turbine, the heating surfaces of which are connected into the water-steam circuit of a steam turbine. The evaporator tubes of the device are thus connected on the inlet side by means of supply line to the feed water train of the water-steam circuit of the steam turbine.

Abstract: A device is for preheating combustibles in combined gas and steam turbine installations. The device includes at least one steam generator for heating, evaporating and superheating feed water, which has a feed water preheater, an evaporator and a superheater. At least part of the heated feed water is used for preheating combustibles in a combustible preheater, which can be supplied with feed water of a predetermined temperature by a feed water supply line. Once the combustible has been heated, the cooled feed water can be drained using a feed water drain line. The device is configured so that it can be used in different gas turbine installations and its heating capacity can be rapidly and cost-effectively adapted to predetermined combustible preheating requirements. To achieve this, the combustible is preheated in stages, which can be activated individually as required and through which the combustible can successively pass.

Abstract: The aim of the invention is a device (100) for coolant cooling in a gas turbine (2) which, with a relatively simple construction and low plant complexity permits a particularly high degree of efficiency in using the heat produced on cooling the coolant from a gas turbine (2). Said aim is achieved, whereby a number of interconnected evaporator tubes (140, 150, 160, 170) for a flow medium, are arranged in a coolant channel (102), connected to the gas turbine (2), to form a forced throughflow steam generator. Said device (100) is preferably used in a gas and steam turbine unit (1, 1′, 1″) with a waste heat steam generator (30) on the exhaust gas side of a gas turbine (2), the heating surfaces of which are connected into the water-steam circuit (24) of a steam turbine (20). The evaporator tubes (140) of the device (100) are thus connected on the inlet side by means of a supply line (112) to the feed water train of the water-steam circuit (24) of the steam turbine (20).

Abstract: In order to improve a method for warming up steam feed lines (1, 2) connected to steam turbine stages (9, 10, 11), in which method warming-up steam is directed through a section to be warmed up of a first steam feed line and a second steam feed line, this warming-up steam being directed through the first steam feed line in an operating flow direction (4), existing during the turbine operation, of the steam, and in which warming-up steam is discharged through bypass lines of the steam feed lines, in such a way that reliable and quick warming-up and draining of the steam feed lines is made possible, the disposal systems merely being designed for lower capacities, the warming-up steam, after being directed through the section to be warmed up of the first steam feed line, must be directed through a connecting line (5) to the second steam feed line, this connecting line being open during the warming-up, must then be directed through the section to be warmed up of the second steam feed line against the operating fl

Abstract: The invention relates to a device for preheating combustibles in combined gas and steam turbine installations. Said device comprises at least one steam generator (5, 6, 7) for heating, evaporating and superheating feed water, which has a feed water preheater (15, 16, 43, 51), an evaporator (8, 9, 10) and a superheater (11, 12, 13), at least part of the heated feed water being used for preheating combustibles in a combustible preheater, which can be supplied with feed water of a predetermined temperature by a feed water supply line (35, 36, 37, 56, 58, 60, 73) Once the combustible has been heated, the cooled feed water can be drained using a feed water drain line (57, 59, 61, 74). The aim of the invention is to configure a device of this type so that it can be used in different gas turbine installations and its heating capacity can be rapidly and cost-effectively adapted to predetermined combustible preheating requirements.

Abstract: A combined-cycle power plant includes a steam turbine having at least one low-pressure stage and a high-pressure stage, a feed-water preheater associated with the high-pressure stage, a bypass line connected in parallel with the feed-water preheater, a gas turbine operable with both gas and oil as fuel and having a flue-gas side, and a waste-heat steam generator disposed downstream of the gas turbine on the flue-gas side for generating steam for the steam turbine.