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An absorption heat pump comprising a generator which is provided with a condensation pipe (59) comprising a lower generating section (79) and an adjoining upper rectifying section (81). The upper section (81) is filled with a thermally insulating gas (87) which separates the generating section (79)

An absorption heat pump comprising a generator which is provided with a condensation pipe (59) comprising a lower generating section (79) and an adjoining upper rectifying section (81). The upper section (81) is filled with a thermally insulating gas (87) which separates the generating section (79) from the rectifying section (81). Thus, a simple construction is obtained, in which the rectifier is integrated in the generator.

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An absorption heat pump comprising a generator and absorber arranged in a first circuit for a solution of work medium and solvent and a condenser and evaporator arranged in a second circuit for the work medium, an outlet of the generator being connected to the condenser and an outlet of the evaporat

An absorption heat pump comprising a generator and absorber arranged in a first circuit for a solution of work medium and solvent and a condenser and evaporator arranged in a second circuit for the work medium, an outlet of the generator being connected to the condenser and an outlet of the evaporator being connected to the absorber, which is connected via an outlet to an inlet of the generator, while a vertically arranged first metal pipe passed into a holder of the generator and closed at its upper end is connected at its lower end to a vessel arranged outside the holder and forming part of the generator, which vessel contains an evaporation and condensation medium, respectively, the space between the holder and the said first pipe being connected to a supply for the solution and to an outlet for gaseous work medium, characterized in that the first pipe is filled in an upper rectifying section with a thermally insulating gas and is wetted in a lower generating section adjoining the upper section on its inner wall with condensing work medium, while the pipe is provided both in the upper and in the lower section with at least one fin which is secured to the outer wall of the pipe and is arranged so as to be clear of the inner wall of the holder.