Abstract: The invention relates to a discharge silencer (6) for a hermetically encapsulated refrigerant compressor (1), which comprises a piston/cylinder unit (4) that compresses a refrigerant and has a compression chamber (3) and which is enclosed by a hermetically sealed compressor housing (2), wherein the compression chamber (3) is supplied with refrigerant coming from an evaporator through a suction silencer (5) and discharges refrigerant compressed by the piston/cylinder unit (4) into a pressure line (7a, b) through the discharge silencer (6). According to the invention, the discharge silencer (6) comprises a main body (8), on which an inlet flange (9) for the refrigerant coming from the piston/cylinder unit (4) is arranged, and an outlet channel (10), through which the refrigerant can be led into a pressure line (7a, b) that supplies a condenser with compressed refrigerant.

Abstract: A refrigerant compressor has a compressor housing in which a cylinder housing and an electric motor are fastened to one another. The electric motor includes a stator provided with a stator bore, the coil core of which is provided with receiving grooves for accommodating a stator winding having any given number of windings, coil groups, and poles. The coil core is preferably composed of interconnected stator segments and the stator winding in the region of the end faces of the coil core has winding heads which are each situated outside the receiving grooves. The winding heads of the stator winding are pressed against an insulating element which is situated between the coil core and the winding heads and which has an arbitrary number of projecting additional insulating sections in a peripheral edge region opposite the stator bore.

Abstract: A coolant compressor (1), comprising a piston-cylinder unit (2) that compresses a coolant, said piston-cylinder unit comprising a cylinder housing (4) and a piston (3) held in a piston bore (5) of the cylinder housing (4), wherein the cylinder housing (4) is sealed in an axial direction by a valve plate (6) and a cylinder cover (7). In order to facilitate the simple and flexible mounting of the valve plate (6) at the cylinder housing (4), it is provided according to the invention that the valve plate (6) is countersunk in its operating position in the piston bore (5) of the cylinder housing (4) and is fastened in the piston bore (5) of the cylinder housing (4) by way of a material bond connection, so that an end stop provided especially for the valve plate (6) in the cylinder housing (4) can be omitted.

Abstract: Refrigerant compressor for a hermetically encapsulated small refrigerator, which has a piston (20) guided in a piston bore (3) of a cylinder housing (1), the cylinder housing being frontally terminated using a valve plate (7) having a pressure opening (17) and a suction opening (16) and also being frontally provided with holes (5), which each have a thread.

Abstract: A coolant compressor has a hermetically sealed compressor housing, in the interior of which lies a piston cylinder unit that compresses a coolant. The cylinder housing of the piston cylinder unit is closed at the front end thereof by a cylinder head. A linear drive is provided, comprising at least one oscillating body which is surrounded by an excitation winding and which is connected to the piston to move same along a longitudinal axis in an oscillating manner. The piston cylinder unit has at least one first permanent magnet that lies on the piston, and at least one second permanent magnet that lies on the cylinder housing. Both magnets face each other and are oriented in the same magnetic pole direction in order to generate a repelling effect between both magnets to limit the path of the piston in the region of the top or bottom dead center.

Abstract: What is shown is a housing of a small coolant compressor comprising an evaporator shell, wherein the evaporator shell is formed at least by a metal wall (2) fastened directly to the housing (1) in sealing fashion, the wall following a perimeter line of the housing (1) and by at least one partial surface (1a) of the housing disposed inside the wall (2). At least one damping element (5) for damping the oscillations transferred from the housing (1) to the wall (2) is fastened to the wall (2) at a distance from the housing (1). In order to reduce noise emissions, one or more damping elements (5-10) encompass the free upper edge of the wall (2).

Abstract: Device for fastening the housing (2) of a refrigerant compressor on a container enclosing a cooling volume, wherein the housing (2) can be fastened by means of an arbitrary number of connection elements (3) on a carrier element (1) arranged on the container, wherein at least one connection element (3) is provided that can be fastened in a clamped or latched manner in at least one corresponding receptacle (4), wherein the at least one connection element (3) or the at least one receptacle (4) can be arranged selectively on the housing (2) or on the carrier element (1).

Abstract: Hermetically encapsulated refrigerant compressor (1), comprising a cylinder housing (3), which is used as the basis for manufacturing various refrigerant compressor construction series each having different working volumes and a piston (6) guided in a piston bore (8) of the cylinder housing (3) along a defined piston run surface (9).

Abstract: A device for fastening the housing (2) of a refrigerant compressor at a container enclosing a cooling volume, wherein the housing (2) can be fastened to a support element (1) located at the container by way of an arbitrary number of connecting elements (3), wherein at least one connecting element (3) is provided that can be fixed in clamped or latched fashion in at least one corresponding receptacle (4), wherein the at least one connection element (3) and the at least one receptacle (4) can be located either at the housing (2) or at the support element (1). In order to facilitate a simple, fast and nevertheless reliable fastening of the refrigerant compressor at the support element (1), it is provided according to the invention that the housing (2) can be moved from a first mounting position in which the at least one connection element (3) is laid into the at least one receptacle (4) to an operating position in which the connection element (3) is fixed in the receptacle (4) in clamped or latched fashion.

Abstract: A coolant compressor (1), comprising a piston-cylinder unit (2) that compresses a coolant, said piston-cylinder unit comprising a cylinder housing (4) and a piston (3) held in a piston bore (5) of the cylinder housing (4), wherein the cylinder housing (4) is sealed in an axial direction by a valve plate (6) and a cylinder cover (7). In order to facilitate the simple and flexible mounting of the valve plate (6) at the cylinder housing (4), it is provided according to the invention that the valve plate (6) is countersunk in its operating position in the piston bore (5) of the cylinder housing (4) and is fastened at the cylinder housing (4) or in the piston bore (5) by way of a material bond connection.

Abstract: Refrigerant compressor for a hermetically encapsulated small refrigerator, which has a piston (20) guided in a piston bore (3) of a cylinder housing (1), the cylinder housing being frontally terminated using a valve plate (7) having a pressure opening (17) and a suction opening (16) and also being frontally provided with holes (5), which each have a thread.

Abstract: A refrigerant compressor has a hermetically tight compressor housing inside of which a piston-cylinder unit operates. A suction muffler through which refrigerant flows to the intake valve of the piston-cylinder unit is provided on the cylinder head. The inlet of the suction muffler has a cross section via which refrigerant flows into the suction muffler. A compensating volume is provided inside of which refrigerant oscillates and which is connected to the suction muffler and the interior of the compressor housing. The cross section of the inlet also acts as the connecting port between the compensating volume and the filling volume. The compensating volume is formed by an outer tube directed into the compressor housing, which tightly surrounds the intake port of the inlet while surrounding the section of the refrigerant suction pipe that is connected to the evaporator of the compressor and extends into the interior of the compressor housing.

Abstract: A hermetically encapsulated refrigerant compressor having a hermetically sealed compressor housing, in whose interior a piston-cylinder unit operates, whose cylinder housing (1) is closed using a valve plate (2) having a pressure hole (10) and a suction hole (16), and a suction channel and a pressure channel are provided. Preferably V-shaped sealing beads (23) or sealing projections (22) are provided in the valve plate (2) and the front face of the component (9) forming the suction channel is equipped along its suction contact edge (17) with sealing projections (22) or sealing beads (23) essentially corresponding to the V-shaped sealing beads (23) or sealing projections (22), the sealing projections (22) being implemented differently from the sealing beads (23) in their geometrical design and/or having a different volume.

Abstract: A hermetically encapsulated refrigerant compressor which has a hermetically sealed compressor housing (1), in the interior of which operates a refrigerant-compressing piston-cylinder unit, and is provided with a suction duct (2), via which refrigerant is conveyed into the compressor housing (1), and is provided with a pressure duct (3), via which refrigerant is conveyed out of the compressor housing (1) by the piston-cylinder unit. In order to prevent contact of oil (4) flowing down the compressor housing wall with the suction duct (2) or the pressure duct (3), it is provided in accordance with the invention that in the operating position of the compressor housing (1) deflection means (5, 6) are provided on the same above the passage of the suction duct (2) or pressure duct (3) through the compressor housing wall. The heating of the refrigerant is thus prevented and the efficiency of the refrigerant compressor is increased.

Abstract: The aim of the invention is to create a receptacle (4) which is used for evaporating condensed liquid on a small coolant compressor, allows the heat generated by the small coolant compressor to be utilized in an optimal way, and is easy and inexpensive to produce and mount on the compressor housing. The aim is achieved by embodying the receptacle (4) as a plastic part that is deep-drawn in a receiving device (6) directly on the compressor housing. The plastic part perfectly matches the shape of the receiving device (6) such that the air gap that is usually formed between the compressor housing and the receptacle (4) can be eliminated altogether or reduced to a minimum. A holding element (2) that is arranged on the outer circumference of the cover part (1) ensures optimum support for the receptacle (4), thus dispensing with the need for expensive anti-corrosive measures while the evaporator power and the coefficient of performance (COP) of the small coolant compressor are optimized.

Abstract: The invention relates to a compressor for hermetically sealed small refrigeration machines, comprising a cylinder with a cylinder housing and a piston that is guided in the piston bore of the cylinder and that compresses a working medium. The cylinder is sealed by a disc-type valve plate in the axial direction, a cylinder cover lying against or being surrounded by the plate. According to the invention, the cylinder housing comprises axial extensions facing towards the cylinder cover and located in the peripheral area of the cover. A first axial section of the axial extensions lies against the cylinder cover in the contact region between the cylinder cover and the valve plate and a second axial section surrounds the cylinder cover with a small degree of play.