Abstract: The invention relates to a system for operating a first PEG element (PFC1) and a second PEC element (PFC2) in an interleaved mariner, said system comprising a first integrated circuit (IC1) having a first PFC controller, a second integrated circuit (IC2) having a second PFC controller, as well as a synchronization circuit (SYNC) connecting the first integrated circuit (IC1) and the second integrated circuit (IC2), whereas the synchronisation circuit (SYNC) is adapted to control the first integrated circuit (IC1) and the second integrated circuit (IC2) such that the first PFC element (PFC1) and the second PFC element (PFC2) are operated in anti-phase.

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 for fastening the flexible connection element onto the end segment and/or the inner wall of the housing.

Abstract: End element for the stator of an electric motor of a hermetically sealed refrigerant compressor including at least one isolating element, having a ring-like core, to cover an axial end portion of the stator and to isolate a stator core and stator windings. The end element includes several spring holders extending radially outside the isolating element, each spring holder being adapted to hold a spring for supporting the electric motor in a housing of the hermetically sealed refrigerant compressor. The spring holders are oriented parallel to the axis of the isolating element and an insertion part of each spring holder extends in a first axial direction beyond the neighboring area of the isolating element. The spring holders and the isolating element are integral parts of the end element. The spring holders are tiltable so that an extended part of a spring holder tilts radially inwards.

Abstract: Refrigerant compressor with a hermetically sealed housing and a drive unit in the interior of the housing. At least one damping element is in the housing is connected to the drive unit. The damping element has three contact areas separated from each other by an edge, in which in a first deflected state of the drive unit a first contact area contacts a first inner surface area of the housing, wherein in a second deflected state a second contact area contacts a second inner surface area of the housing, but the first contact area does not contact the first inner surface area, wherein in a third deflected state of the drive unit a third contact area contacts a third inner surface area, but the first and second contact areas do not contact the first and second inner surface areas, respectively.

Abstract: An interior permanent magnet rotor, for a drive unit disposed in the interior of a hermetically sealed housing of a refrigerant compressor, whereas the rotor includes a first axial section with permanent magnets, followed by a second axial section without permanent magnets. In order to reduce the risk of a magnetic short-circuit it is provided that the second axial section, adjacent to the first axial section, includes a first axial subsection with a reduced radial dimension not going beyond the permanent magnets in the first axial section, whereas the axial length of the first axial subsection is smaller than the axial length of the first axial section, and the second axial section, adjacent to its first axial subsection, includes a second axial subsection with a radial dimension larger than the reduced radial dimension of the first axial subsection.

Abstract: The invention relates to a refrigerant compressor, comprising a compressor housing (1) that can be hermetically capsuled, and a compressor-motor unit (4) arranged in the housing interior (3) of the compressor housing (1), which is elastically mounted on an inner side of the compressor housing (1) by way of at least one spring element (5), wherein at least one damping element (9) made of an elastomer is provided, in order to damp the transmission of vibrations caused by the compressor-motor unit (4) to the compressor housing (1). The at least one damping element (9) is made of an elastomer that is softer compared to polyamide (PA), polybutylene terephthalate (PBT), ethylene chlorotrifluoroethylene (ECTFE).

Abstract: For a refrigerant compressor, a flexible connection element that 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 for fastening the flexible connection element onto the end segment and/or the inner wall of the housing.

Abstract: A cylinder head cover for a coolant compressor, wherein the cylinder head cover is attachable to a cylinder head arrangement in order to form a hollow space for receiving a coolant compressed by the piston, wherein the cylinder head arrangement comprises a valve plate attached to the cylinder housing and having an outlet opening and an outlet valve, which closes the outlet opening in cycles and consists of a valve spring and a stop plate for delimiting an opening movement of the valve spring. In order to achieve a cost-efficient production and installation of the cylinder head cover while assuring a secure support of the stop plate, it is provided that the cylinder head cover can comprise at least two contact surfaces for supporting stop plates of different outlet valves in order to adjust different opening positions of the valve springs of the different outlet valves.

Abstract: The invention concerns a suction silencer (1) for an encapsulated refrigerant compressor, with an inlet (5), an outlet (6), a damping chamber (7) connecting the inlet (5) and the outlet (6) for sound attenuation, and an equalization chamber connected to the damping chamber (7) for equalizing the pressure of the damping chamber (7), wherein the suction silencer (1) is provided in the operating position for integration in a compressor housing (20) of the refrigerant compressor having a bottom area (21) for reception of an oil sump (26). To ensure a continuous pressure equalization between the damping chamber (7) and the environment even during start-up of the refrigerant compressor, it is intended in accordance with the invention that the equalization chamber is designed as a first equalization chamber (11) with a first opening (9) for pressure equalization and the suction silencer (1) has a further, second equalization chamber (14) with a second opening (10) for pressure equalization.

Abstract: A lubricant holder for vertical conveying of lubricant using a crankshaft of a coolant compressor includes a sleeve element having a clear cross-section delimited by an inside wall, which cross-section extends along a longitudinal axis, from an upper end to a lower end, an inner element that has a mantle surface that extends along a longitudinal axis of the inner element, from a lower end to an upper end, wherein in an operating state the inner element is arranged within the clear cross-section with its mantle surface, at least in certain areas. At least one groove of the inside wall and/or of the mantle surface, which groove runs in spiral shape, has a varying angle of inclination, which preferably increases from the lower end to the upper end of the mantle surface.

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 for fastening the flexible connection element onto the end segment and/or the inner wall of the housing.

Abstract: A compressor for compressing coolant circulating in a cooling circuit, wherein the compressor includes at least one receiving element for spring elements carrying a compressor/motor unit. With its casing element, this receiving element protrudes past a sump height of a lubricant sump in a vertical direction, which lubricant sump forms in the housing interior in an operating state of the compressor. Because lubricant is constantly distributed throughout the entire housing interior in the operating state—caused by the motion of the movable parts of the compressor—lubricant also collects within a receiving volume of the receiving element, where it forms a level that is clearly above the sump height of the lubricant sump as viewed in a vertical direction. As a result, a damping of the spring elements is achieved by the lubricant, and therefore without the inclusion of additional means elements.

Abstract: A lubricant holder for vertical conveying of lubricant using a crankshaft of a coolant compressor includes a sleeve element having a clear cross-section delimited by an inside wall, which cross-section extends along a longitudinal axis, from an upper end to a lower end, an inner element that has a mantle surface that extends along a longitudinal axis of the inner element, from a lower end to an upper end, wherein in an operating state the inner element is arranged within the clear cross-section with its mantle surface, at least in certain areas. At least one groove of the inside wall and/or of the mantle surface, which groove runs in spiral shape, has a varying angle of inclination, which preferably increases from the lower end to the upper end of the mantle surface.

Abstract: End element for the stator of an electric motor of a hermetically sealed refrigerant compressor. The end element includes at least one isolating element, having a ring-like core, to cover an axial end portion of the stator and to isolate a stator core and stator windings. The end element includes several spring holders that extend radially outside the isolating element, each spring holder being adapted to hold a spring for supporting the electric motor in a housing of the hermetically sealed refrigerant compressor. The spring holders are oriented parallel to the axis of the isolating element and an insertion part of each spring holder extends in a first axial direction beyond the neighboring area of the isolating element. The spring holders and the isolating element are integral parts of the end element. The spring holders are tiltable so that an extended part of a spring holder tilts radially inwards.

Abstract: A system includes a refrigerant compressor and an electronic control device therefor. The compressor includes a drive unit and a compression mechanism drivable thereby having a crankshaft-drivable piston. The control device captures and controls, in an open- and/or closed-loop manner, the crankshaft rotational speed and at least approximately captures the piston position.

Abstract: An interior permanent magnet rotor, for a drive unit disposed in the interior of a hermetically sealed housing of a refrigerant compressor, whereas the rotor includes a first axial section with permanent magnets, followed by a second axial section without permanent magnets. In order to reduce the risk of a magnetic short-circuit it is provided that the second axial section, adjacent to the first axial section, includes a first axial subsection with a reduced radial dimension not going beyond the permanent magnets in the first axial section, whereas the axial length of the first axial subsection is smaller than the axial length of the first axial section, and the second axial section, adjacent to its first axial subsection, includes a second axial subsection with a radial dimension larger than the reduced radial dimension of the first axial subsection.

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.

Abstract: A crankshaft (1) for a refrigerant compressor, the crankshaft (1) at least comprising a cylindrical shaft element (2), a crankpin (3) for driving a compressor piston of the refrigerant compressor, and means for conveying lubricant from a lower end region (4), facing away from the crankpin (3), of the shaft element (2) in the direction of the crankpin (3), in order to supply lubricant to movable parts of the refrigerant compressor, wherein at least one surface section of a surface of the crankshaft (1) comprises at least one flow disruptor, which flow disruptor is, based on the geometry and/or characteristics thereof, configured to break up vapor bubbles and/or gas bubbles in the lubricant flowing around the crankshaft (1) in an operating state of the refrigerant compressor.

Abstract: Refrigerant compressor with a hermetically sealed housing and a drive unit in the interior of the housing. At least one damping element is in the housing is connected to the drive unit. The damping element has three contact areas separated from each other by an edge, in which in a first deflected state of the drive unit a first contact area contacts a first inner surface area of the housing, wherein in a second deflected state a second contact area contacts a second inner surface area of the housing, but the first contact area does not contact the first inner surface area, wherein in a third deflected state of the drive unit a third contact area contacts a third inner surface area, but the first and second contact areas do not contact the first and second inner surface areas, respectively.

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.