Abstract: The invention relates to a connection component of a refrigerant compressor for joining a housing of the refrigerant compressor to a device that is in operative connection with the refrigerant compressor, the connection component comprising an inner element and an outer element surrounding the inner element, where the inner element has a higher stiffness than the outer element and the outer element has a functional segment that is designed so that in a loaded state of the connection component it is supported both at the housing and also at the device.

Abstract: The invention relates to an electronic control device (13) for a refrigerant compressor, comprising at least: a drive unit (18); and a compression mechanism (5) which is actively connected to the drive unit (18), with at least one piston (9) which is driven by a crankshaft (6) and moves back and forth between a lower and an upper dead point in a cylinder of a cylinder block (8), in which the electronic control device (13) is designed to detect, control and/or regulate the rotational speed (?) of the drive unit (18) and to at least approximately detect the piston position, and in which the electronic control device (13) is designed to drive the compression mechanism (5) by means of the drive unit (18) in such a way that at least one drive angle segment (??) and at least one transit angle segment (??) is provided for the duration of a regulating time interval (?t) comprising more than one crankshaft rotation, for a plurality of crankshaft rotations, preferably for each crankshaft rotation of the regulating time

Abstract: The invention relates to a method for operating a variable-speed refrigerant compressor (2) for cooling a cooling volume (4) of a refrigeration system (1) that does not have its own control unit, wherein the refrigeration system (1) comprises at least one thermostat (3) for directly or indirectly monitoring a temperature state of the cooling volume (4) and wherein the rotational speed behavior of the refrigerant compressor (2) during a cooling cycle is controlled by means of a preset closed-loop rotational speed control saved in an electronic control device (6) of the refrigerant compressor (2), based on at least one predefined parameter, in that the at least one predefined parameter is monitored with respect to an over- and/or undershooting by a current parameter of a current cooling cycle, and relates to an electronic control device (6) for controlling the cyclical operation of a variable-speed refrigerant compressor.

Abstract: For a refrigerant compressor, a flexible connection element is provided which connects an end segment of a suction connection piece, which end segment protrudes into the interior of a housing, to a suction sound damper, in particular to a suction opening of the suction sound damper. The end segment itself thereby serves as a means for fastening the flexible connection element onto the end segment and/or the inner wall of the housing.

Abstract: A method for detecting a blocked valve of a coolant compressor including a drive unit and a piston-cylinder unit for cyclical compression of a coolant, wherein the drive unit has an electric motor for driving the piston-cylinder unit, monitors the speed (?) of the electric motor. A maximum speed (?max) of the electric motor is initially detected, and the following steps are carried out, as long as the speed (?) of the electric motor substantially corresponds to the maximum speed (?max): determining a maximum value Xmax of a monitoring parameter (I, T) of the coolant compressor (1); determining a value Xt1 of the monitoring parameter (I, T) after a first time period (t1) after determining the maximum value Xmax; detecting a blocked valve if Xt1 is less than Xmax and (Xmax?Xt1)/Xmax??X applies, wherein ?X is predetermined.

Abstract: A refrigerant compressor includes a hermetically sealed housing and includes a drive unit; wherein the drive unit is arranged in the interior of the housing and is attached, by way of at least one spring element, to at least one mounting region of the housing with mounting action; wherein a first mounting element and a second mounting element are provided; wherein one of the two mounting elements is connected to the drive unit and the other of the two mounting elements is connected to the mounting region. The first mounting element is of sleeve-like form and has an inner wall, and the second mounting element has a bolt-like section, wherein the bolt-like section is received at least in sections in the first mounting element, whereby an overlap region is formed, in which overlap region a gap is formed between the bolt-like section of the second mounting element and the inner wall of the first mounting element.