Danfoss Compressors Gmbh

Secop Gmbh

Marten Nommensen

Frank Holm Iversen

Heinz Otto Lassen

Christian Petersen

Ekkehard Handke

Beate Sönksen, Legal Representative

Dirk Sommer

Heinz-Otto Lassen

Norbert Stöcken

Beate Sönksen

Compressor

The invention concerns a rotor () for an electric drive motor of a refrigerant compressor with a cylinder ring (), several permanent magnets () resting on the radial inside of the cylinder ring (), each permanent magnet () forming a ring section, and fixing elements () between the permanent magnets (), said fixing elements () engaging a fixing geometry () of the cylinder ring (). It is endeavoured to simplify the manufacturing of such a rotor. For this purpose, the cylinder ring () is located in a carrier (), which comprises a bottom () and a circumferential wall (), the permanent magnets (,) resting on the bottom (), and each fixing element (,) comprising at least one projection (), which covers a side () of the permanent magnet (,) facing away from the bottom ().

Rotor for an electric drive motor of a refrigerant compressor

The invention concerns a refrigerant compressor arrangement () with a housing () comprising a suction opening (), a compressor (), which is arranged in the housing (), and is connected to the suction opening (), and a suction connection () that is fixed at the housing (), and comprises a housing section () and a tube section (), the housing section () being connected to the suction opening () and the diameter of the tube section () being different from the diameter of the housing section (). With such a refrigerant compressor arrangement, it is endeavoured to keep the dimensions small. For this purpose, in the longitudinal direction of the suction connection () the housing section () and the tube section () overlap each other and are connected to each other by a corrugated area () with at least one radial corrugation.

Refrigerant compressor arrangement having a telescopic tube in suction opening

The invention relates to a method of calibrating a connecting rod arrangement comprising a crankshaft eye and a connecting rod eye. In order to achieve the best possible parallelism between the connecting rod eye and the crankshaft eye a controlled energy input occurs in at least one predefined surface area of the connecting rod, so that outside a neutral axis a local structural change and thus a tension in the connecting rod occurs.

Method of calibrating a connecting rod arrangement and connecting rod arrangement

The invention concerns a method of mounting a cylinder arrangement of a hermetically enclosed refrigerant compressor arrangement in a carrier arrangement (), in which the cylinder arrangement is inserted in the carrier arrangement (), aligned in relation to a crank shaft () and connected to the carrier arrangement (). It is endeavored to ensure a good efficiency of the refrigerant compressor arrangement. For this purpose the carrier arrangement is deformed, before inserting the cylinder arrangement, by means of a calibration cylinder (), until the calibration cylinder () has a predetermined alignment, after which the calibration cylinder () is removed and replaced by the cylinder arrangement in the carrier arrangement ().

Method of mounting a cylinder arrangement of a hermetically enclosed refrigerant compressor arrangement, and hermetically enclosed refrigerant compressor arrangement

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 endeavored 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.

Piston compressor, particularly a hermetic refrigerant compressor

The invention concerns a piston compressor cylinder arrangement (), particularly for a hermetically enclosed refrigerant compressor, with a cylinder body () and a cylinder head arrangement (), the cylinder body () having a first front side () in the area of the cylinder head arrangement () and a second front side () 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 () surrounds the cylinder body () over its full axial working length with a radial distance on all sides.

Piston compressor cylinder arrangement, particularly for a hermetically enclosed refrigerant compressor

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 endeavored 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.

Refrigerant compressor arrangement

The invention concerns a method for mounting a drive shaft () of a compressor, particularly a hermetical refrigerant compressor, which has a motor with a stator () and a rotor (), connected with the drive shaft () and located in a rotor opening () of the stator (), a first bearing support () and a second bearing support () being connected with the stator (), a first bearing () for the drive shaft () being mounted in the first bearing support () and a second bearing () for the drive shaft () being mounted in the second bearing support (). 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 () is provided with a positioning stop for the first bearing () after mounting the first bearing support () on the stator ().

Method for mounting a drive shaft of a compressor

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.

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

Rotor arrangement for an electrical drive motor of a compressor, particularly a refrigerant compressor

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 endeavored 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.

Piston compressor

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.

Piston arrangement

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.

Growing community of inventors

Flensburg, Germany

Marten Nommensen