Abstract:
A valve for a pressure vessel of an automatic fire extinguishing system comprises a valve housing with a valve output opening for connecting an extinguishing line, a valve input opening for connecting the valve to the pressure vessel, a valve seat arranged between the valve output opening and the valve input opening, a low pressure chamber for connecting a triggering device and a high pressure chamber connectable with the low pressure chamber, wherein arranged in a the valve housing is a closing piston comprising a valve seat seal, which can be moved between a closing piston closed position and a closing piston open position, a pressure control unit in pressure connection with the valve input opening and the low pressure chamber for controlling the low pressure in the low pressure chamber relative to a vessel pressure of the pressure vessel and a control piston which can be moved between a control piston closed position and a control piston open position, wherein the closing piston is arranged in the closing piston closed position with the valve seat seal on the valve seat in a fluid-tight manner so that the valve output opening is sealed relative to the valve input opening, wherein the closing piston is arranged in the closing piston open position spaced apart from the valve seat, so that the valve output opening and the valve input opening are in pressure connection, wherein the control piston in the control piston closed position seals a pressure channel between the high pressure chamber and the low pressure chamber in a fluid-tight manner, and wherein the control piston in the control piston open position releases the pressure channel, so that the high pressure chamber and the low pressure chamber are in pressure connection.
Abstract:
A fire extinguisher (50, 50′, 50′) comprises a container (10, 10′) that holds a fire-extinguishing substance and that has a container jacket (12, 12′) closed at both ends, and a piston (20, 20′) which is axially displaceable in the container jacket and which separates a space (22, 22′) for fire-extinguishing substance from an expansion space (24, 24′) in the container. According to the invention, an inner compressed-gas chamber (26, 26′) provided in the container (10, 10′) is spatially separate from the expansion space and serves for controlled pressurizing of the expansion space (24, 24′). The piston (20, 20′) is arranged such that it can be displaced along the compressed-gas chamber (26, 26′).
Abstract:
A fire extinguisher (50, 50′, 50′) comprises a container (10, 10′) that holds a fire-extinguishing substance and that has a container jacket (12, 12′) closed at both ends, and a piston (20, 20′) which is axially displaceable in the contain which separates a space (22, 22′) for fire-extinguishing substance from an expansion space (24, 24′) in the container. According to the invention, an inner compressed-gas chamber (26, 26′) provided in the container (10, 10′) is spatially separate from the expansion space and serves for controlled pressurizing of the expansion space (24, 24′). The piston (20, 20′) is arranged such that it can be displaced along the compressed-gas chamber (26, 26′).
Abstract:
A thermoelectric generator and a method for manufacturing a thermoelectric generator are described. The thermoelectric generator, having a housing in which at least one heat source tube, at least one heat sink tube, and at least one generator element are between the heat source tube and the heat sink tube. A pretension mounting device is in the housing and provides an elastic force via which the tubes are pretensioned relative to one another and which compresses the tubes and the generator element in-between. An inner side of the housing of the pretension mounting device forms a support for the pretension mounting device, which is acted upon by a counterforce to the elastic force of the pretension mounting device.
Abstract:
A valve for a pressure vessel of an automatic fire extinguishing system comprises a valve housing with a valve output opening for connecting an extinguishing line, a valve input opening for connecting the valve to the pressure vessel, a valve seat arranged between the valve output opening and the valve input opening, a low pressure chamber for connecting a triggering device and a high pressure chamber connectable with the low pressure chamber, wherein arranged in a the valve housing is a closing piston comprising a valve seat seal, which can be moved between a closing piston closed position and a closing piston open position, a pressure control unit in pressure connection with the valve input opening and the low pressure chamber for controlling the low pressure in the low pressure chamber relative to a vessel pressure of the pressure vessel and a control piston which can be moved between a control piston closed position and a control piston open position, wherein the closing piston is arranged in the closing piston closed position with the valve seat seal on the valve seat in a fluid-tight manner so that the valve output opening is sealed relative to the valve input opening, wherein the closing piston is arranged in the closing piston open position spaced apart from the valve seat, so that the valve output opening and the valve input opening are in pressure connection, wherein the control piston in the control piston closed position seals a pressure channel between the high pressure chamber and the low pressure chamber in a fluid-tight manner, and wherein the control piston in the control piston open position releases the pressure channel, so that the high pressure chamber and the low pressure chamber are in pressure connection.