Abstract: A method for controlling a temperature of a cooling device taking into account heating at least one machine component of a process machine during operation of the process machine is provided. The method includes ascertaining an expected thermal energy acting upon the at least one machine component within a temporal processing part of a control program that controls the operation of the process machine. The expected thermal energy is ascertained based a processing power provided within the temporal processing part for the at least one machine component. The method further includes determining a required heat dissipating capability of the cooling device for dissipating the expected thermal energy, and preconditioning the cooling device in advance in order to provide the required heat dissipating capability until the expected thermal energy acts upon the machine component.

Abstract: A heat pump (100) is described having an evaporator (50) for evaporating a fluid in order to obtain an evaporated fluid; a condenser (60) for condensing a compressed fluid; a compressor with a first compressor stage (10) and with a second compressor stage (20), wherein the compressor is arranged in the direction of flow of the evaporated fluid between the evaporator (50) and the condenser (60) during operation of the heat pump (100) and is designed to compress the evaporated fluid in order to obtain the compressed fluid; a value recording device (95) for recording a first value (P1) which corresponds to a first pressure ratio between an inlet of the first compressor stage (10) and an outlet of the first compressor stage (10) or is dependent on the first pressure ratio; and a controller (96) for controlling a first rotational speed of the first compressor stage (10) and a second rotational speed of the second compressor stage (20), wherein the controller (96) is designed to control the second rotational speed

Abstract: A heat pump (100) with an evaporator (50) for evaporating a fluid in order to obtain an evaporated fluid is described, the evaporator (50) having an evaporator sump (52); with a compressor having a first compressor stage (10) and a second compressor stage (20), the compressor being arranged in the flow direction of the evaporated fluid during operation of the heat pump (100) between the evaporator (50) and a condenser (60) and being designed to compress the evaporated fluid in order to obtain compressed fluid; and with a condenser (60) for condensing the compressed fluid; and with an intermediate cooler (40) which is connected to an intermediate cooling fluid supply line (3) and which has an operating element (42), the operating element (42) being arranged between the first compressor stage (10) and the second compressor stage (20) and being designed to bring about an interaction between an intermediate cooling fluid, which can be supplied through the intermediate cooling fluid supply line (3), and a heated v

Abstract: A heat pump (100) having the following features is described: an evaporator (50) for evaporating a fluid in order to obtain an evaporated fluid, the evaporator (50) having an evaporator sump (52); a condenser (60) for condensing an evaporated fluid compressed by an N-stage compressor, the condenser (60) having a condensing sump (64), a condensation region (66) and a holding region (67) for holding vaporous fluid still remaining after the condensation region (66); the N-stage compressor which comprises N compressors, N being a natural number greater than or equal to one and the N-stage compressor being arranged between the evaporator (50) and the condenser (60); a vapour duct (30) which couples at least two of the N compressors of the N-stage compressor between the evaporator (50) and the condenser (60), and a vapour-conducting line (92) which is arranged between the condenser (60) and the evaporator (50) in order to conduct vaporous fluid out of the holding region (67) of the condenser (60) into the evaporato

Abstract: A heat pump (100) with an evaporator (50) for evaporating a fluid in order to obtain evaporated fluid is described; with a condenser (60) for condensing a compressed fluid; with a compressor having a first compressor stage (10) and a second compressor stage (20), the compressor being arranged in the flow direction of the evaporated fluid during operation of the heat pump (100) between the evaporator (50) and the condenser (60) and being designed to compress the evaporated fluid in order to obtain compressed fluid; and with a bridging duct (62) between the first compressor stage (10) and the condenser (60) in order to bridge the second compressor stage (20), a cross-section reducing element (70) being arranged in the bridging duct (62) in order to adjust a cross section of the bridging duct (62) so as to control a flow of compressed fluid from the first compressor stage (10) to the condenser (60). Furthermore, methods for operating and producing the heat pump are described.

Abstract: A heat pump system includes a heat pump stage having a first evaporator, a first liquefier, and a first compressor; and a further heat pump stage having a second evaporator, a second liquefier, and a second compressor, wherein a first liquefier exit of the first liquefier is connected to a second evaporator entrance of the second evaporator via a connecting lead.

Abstract: A heat pump system includes a heat pump stage having a first evaporator, a first liquefier, and a first compressor; and a further heat pump stage having a second evaporator, a second liquefier, and a second compressor, wherein a first liquefier exit of the first liquefier is connected to a second evaporator entrance of the second evaporator via a connecting lead.