Abstract: The invention concerns a linear compressor (1) with a piston (16) reciprocating in a cylinder (8), a linear motor acting upon the piston (16) and a resonance spring arrangement (5) connected with the piston (16). It is endeavoured to reliably avoid damaging the compressor during operation. For this purpose, the resonance spring arrangement (5) has a fixed stop (48) allocated to the upper dead point of the piston (16).

Abstract: The invention concerns a linear compressor (1), particularly a refrigerant compressor, with a linear motor (4), which comprises an outer stator (18), an inner stator (20) and an armature (22) located in a gap (21) between outer stator (18) and inner stator (20), and a compression unit (3), which has a cylinder (8) and a piston (16) reciprocating in the cylinder (8) and being connected to the armature (22). It is endeavoured to simplify the design of the compressor. For this purpose, the inner stator (20) and the outer stator (18) are held and positioned in relation to each other at both axial ends by means of motor covers (29).

Abstract: The invention concerns a linear compressor, particularly a refrigerant compressor, with a housing (2, 2?) and a compression unit, which comprises a compressor with a piston and a cylinder as well as a linear motor driving the piston in relation to the cylinder along a movement axis, the compression unit (30) being connected to the housing (2) via a spring arrangement (7). It is endeavoured to provide a space saving support of the compression unit (30) in the housing that enables good vibration suppression. For this purpose, the spring arrangement comprises a spring (6, 7), which is curved in the circumferential direction in relation to the movement axis (50), said spring surrounding the compression unit (3-5) on at least a share of its circumference.

Abstract: The invention concerns a linear compressor (1), particularly a refrigerant compressor, with a first component group comprising a stator (18, 20) of a linear motor (4) and a cylinder (8, 10), a second component group comprising a reciprocating piston (16) and an armature (22) of the linear motor (4) as well as a piston rod (28) connecting the armature (22) to the piston (16), an oil sump in a housing (2) and an oil pump (38), the second component group being movable in relation to the first component group. It is endeavoured to provide a simple design ensuring a lubrication of the linear compressor. For this purpose, the oil pump (38) has a pump housing (40) that is permanently connected to the piston rod (28), the pump housing (40) immersing with at least one suction opening (43; 43a, 43b) into the oil sump (41), the oil pump (38) supplying oil to the inside of the piston rod (28).

Abstract: The invention concerns a compressor crankshaft (1), particularly a refrigerant compressor crankshaft, with a hollow shaft element (2), a crank pin (3) arranged eccentrically to the shaft element (2) and a transition element (4) between the shaft element (2) and the crank pin (3). It is endeavoured to reduce the manufacturing costs. For this purpose, the shaft element (2) has at least two shaft sections (5, 6) joined in a telescope-like manner, which engage in each other in an overlapping area (7).

Abstract: The invention concerns a method for mounting a drive shaft (19) of a compressor, particularly a hermetical refrigerant compressor, which has a motor with a stator (1) and a rotor (23), connected with the drive shaft (19) and located in a rotor opening (4) of the stator (1), a first bearing support (8) and a second bearing support (29) being connected with the stator (1), a first bearing (15) for the drive shaft (19) being mounted in the first bearing support (8) and a second bearing (28) for the drive shaft (19) being mounted in the second bearing support (29). It is endeavoured to provide a method for mounting a drive shaft, in which the use of components with relatively large manufacturing tolerances will still result in a good alignment of the drive shaft in relation to the stator. For this purpose, at least the first bearing support (8) is provided with a positioning stop for the first bearing (15) after mounting the first bearing support (8) on the stator (1).

Abstract: The invention concerns a piston compressor cylinder arrangement (1), particularly for a hermetically enclosed refrigerant compressor, with a cylinder body (2) and a cylinder head arrangement (7), the cylinder body (2) having a first front side (6) in the area of the cylinder head arrangement (7) and a second front side (8) at the other end. It is endeavoured to manufacture such a cylinder arrangement in a cost-effective manner without having to fear for a deformation during mounting. For this purpose, a cup-shaped mounting sleeve (9) surrounds the cylinder body (2) over its full axial working length with a radial distance on all sides.

Abstract: The invention concerns a piston compressor (1), particularly a hermetical refrigerant compressor, with a compression chamber (2), which is bordered by a cylinder (3), a piston (4) and a valve plate arrangement (5), which has a suction valve arrangement (14, 15) and a pressure valve arrangement (16, 17). It is endeavoured to provide a piston compressor with a good efficiency. For this purpose, it is ensured that the suction valve arrangement (14, 15) opens into the compression chamber (2) in a central area of the cylinder (3) and the pressure valve arrangement (16, 17) has a plurality of pressure openings (16), which are located in an annular area surrounding the suction valve arrangement (14, 15).

Abstract: The invention concerns a method for mounting a drive shaft (19) of a compressor, particularly a hermetical refrigerant compressor, which has a motor with a stator (1) and a rotor (23), connected with the drive shaft (19) and located in a rotor opening (4) of the stator (1), a first bearing support (8) and a second bearing support (29) being connected with the stator (1), a first bearing (15) for the drive shaft (19) being mounted in the first bearing support (8) and a second bearing (28) for the drive shaft (19) being mounted in the second bearing support (29). It is endeavoured to provide a method for mounting a drive shaft, in which the use of components with relatively large manufacturing tolerances will still result in a good alignment of the drive shaft in relation to the stator. For this purpose, at least the first bearing support (8) is provided with a positioning stop for the first bearing (15) after mounting the first bearing support (8) on the stator (1).

Abstract: The invention concerns a rotor arrangement for an electrical drive motor of a compressor, particularly a refrigerant compressor, with a rotor (15) having a rotor lamination (20) of stacked sheet plates, and a shaft (8), which is inserted in an axial recess (18) of the rotor lamination (20) and is unrotatably connected with the rotor lamination (20), the recess (28) being formed by openings in adjacent sheet plates (23, 25). It is endeavoured to simplify the manufacturing of such rotor arrangements. For this purpose, it is ensured that openings (24, 26) of different sizes are provided in the sheet plates (23, 15) at least two sheet plates (23) forming a first group, each having an opening (24), which is smaller than the cross-section of the shaft (8), the remaining sheet plates (25) forming a second group, each having an opening (26), which is larger than the cross-section of the shaft (8).

Abstract: The invention concerns a piston arrangement having a piston with a piston head and a piston skirt with a circumferential surface, and a connecting rod, which is connected with the piston via a ball joint comprising a ball, and penetrated by an oil supply channel, which is connected with a bearing surface of the ball joint.

Abstract: The invention concerns a refrigerant compressor arrangement with a compressor having a suction inlet, a casing, in which the compressor is located, a suction socket, which is in communication with the casing, a suction opening in the casing, which is connected with the suction socket, and a telescopic pipe, which is located between the suction inlet and the suction opening in the casing. It is endeavoured to manufacture a refrigerant compressor arrangement in a cost-effective manner. For this purpose, the suction opening is surrounded by a drawing through in the casing wall, whose inner wall forms a sliding surface for the telescopic pipe.

Abstract: The invention concerns a piston arrangement having a piston with a piston head and a piston skirt and a connecting rod, which is connected with the piston via a ball joint arrangement comprising a ball, the ball being held in the piston by means of a safety element.

Abstract: The invention concerns a piston compressor with a piston, which is connected with a crank pin of a drive shaft via a connecting rod having a longitudinal channel. It is endeavoured to make the manufacturing of a piston compressor cost effective. For this purpose, it is ensured that the shaft of the connecting rod is made as a sheet metal pipe.

Abstract: The invention concerns a piston compressor, particularly a hermetic refrigerant compressor, with a compression chamber, which is limited by a valve plate arrangement having a valve plate with a suction gas opening and a pressure gas opening, a suction valve plate with a suction valve element, and a pressure valve plate with a pressure valve element. It is endeavoured to achieve a good efficiency combined with a simple assembly. For this purpose, it is ensured that the pressure valve plate and the suction valve plate are located on the side of the valve plate facing the compression chamber.

Abstract: The invention concerns a refrigerant compressor with a motor, a compressor driven by the motor, and a muffling device having at least one muffler with a housing. It is endeavoured to reduce the thermal influence of suction gas in the refrigerant compressor. For this purpose, it is ensured that the housing has at least one outer wall, which is made of a foamed plastic.

Abstract: The invention relates to a cylinder head arrangement for a piston compressor, particularly for a hermetically enclosed refrigerant compressor, with a valve plate, a suction gas channel, a discharge chamber and a retainer element for a discharge valve. It is endeavoured to improve the efficiency of the piston compressor. For this purpose, it is ensured that the suction gas channel and the discharge chamber are arranged on different sides of the retainer element.