Abstract: The invention relates to a method and system for purifying exhaust gas, especially a solvent-containing exhaust gas from refrigerator recycling, wherein the dried, pressurized exhaust gas is cryogenically condensed, the condensed components are separated from the remaining exhaust gas, the cold and purified pressurized exhaust gas is passed through an adsorber to adsorbe the remaining condensed components, the adsorber is purged with a warmed gas stream, namely either a warmed inert gas stream or the purified exhaust gas respectively at reduced pressure, and the desorbed gas is recycled.

Abstract: The invention relates to a method and system for purifying exhaust gas, especially a solvent-containing exhaust gas from refrigerator recycling, wherein the dried, pressurized exhaust gas is cryogenically condensed, the condensed components are seperated from the remaining exhaust gas, the cold and purified pressurized exhaust gas is passed through an adsorber to adsorbe the remaining condensed components, the adsorber is purged with a warmed gas stream, namely either a warmed inert gas stream or the purified exhaust gas respectively at reduced pressure, and the desorbed gas is recycled.

Abstract: A solid material pump comprising a pump housing, a pair of parallel pump cylinders driven by hydraulic cylinders and each connected to a pump chamber, a slurry feed device which communicates via inlet valves with inlet valve chambers each of which communicates with a pump chamber, the axes of valve cylinders for actuating the inlet valves extending in parallel and spaced relationship to the axes of the pump cylinders and the inlet openings being provided at the pump housing opposite to the pump cylinder whereby the sucked-in flow is deflected twice, further comprising outlet valve chambers adapted to communicate via outlet valves each with a pump chamber and connected to a common outlet conduit, with the valve cylinders for actuating the outlet valves being connected to the pump housing on the side opposite to the inlet valve cylinders and their axes extending in parallel and spaced relationship to the axes of the pump cylinders and the inlet valve cylinders.

Abstract: The present invention relates to a viscous material pump. According to the invention, a pressure sensor is associated with the hydraulic drive cylinder of the fixed displacement pump for generating a pressure signal when a first sudden pressure increase occurs after the drive piston moves out of its end position. The volume subsequently displaced by the conveying piston corresponds to the actual delivery volume during the pumping stroke. A processor calculates the actual delivery volume for each pumping stroke using the ratio between the stroke time, as defined by the occurrence of the pressure peak and the maximum available conveying volume of the cylinder, as defined by the stroke time the piston needs to move from its first to its second end position. The present invention further provides for adjusting the supply volume of a supply means discharging the material to the viscous material pump.

Abstract: A seal assembly for sealing two relatively movable parts against fluid leakage comprises a seal ring of compressible material mounted on one of the parts, and a supporting ring of non-compressible material positioned in an axial annular groove in said seal ring, said groove being open towards the annular gap to be sealed and surrounded by an annular web, said supporting ring being arranged to be radially displaceable in that groove with limited elastic deformation of said annular web.