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US 7,243,595 B2Granted
Piston compressor
AssigneeDanfoss Compressors GmbH
InventorsChristian Petersen, Heinz Otto Lassen, Marten Nommensen, Frank Holm Iversen
Life of this patent
Estimating the term…
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 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.
Claims27
A piston compressor comprising:
- a piston, which is connected to a crank pin of a drive shaft via a connecting rod having a shaft and a longitudinal channel adapted to allow oil to flow from the crank pin to the piston, wherein the shaft of the connecting rod is made as a sheet metal pipe and the sheet metal pipe forms the longitudinal channel.
The piston compressor according to claimed 7, wherein the bearing bush and the bearing shell have a distortion protection.
A piston compressor comprising:
- a piston, which is connected to a crank pin of a drive shaft via a connecting rod having a shaft and a longitudinal channel, wherein the shaft of the connecting rod is made as a sheet metal pipe, wherein the crank pin has a bearing bush, which has, at least in sections, a spherical outer surface, wherein the shaft is connected with an at least partially spherical bearing shell, which surrounds the bearing bush, and wherein the shaft is welded onto the bearing shell.
A piston compressor comprising:
- a piston, which is connected to a crank pin of a drive shaft via a connecting rod having a shaft and a longitudinal channel, wherein the shaft of the connecting rod is made as a sheet metal pipe and wherein the crank pin is made as a cup-shaped sheet metal shaped part, which is connected with the drive shaft.
Dependencies are inferred from the claim text.