Refrigerant Compressor Unit
AssigneeBITZER Kuehlmaschinenbau GmbH
InventorsAxel Friedrich, Andreas Becker, Dirk Mannewitz
Life of this patent
Estimating the term…
Abstract
In order to make a refrigerant compressor unit as light and compact as possible so that it can be used as a transcritical CO2 compressor, it is proposed that the cylinder head is manufactured from a cast material comprising iron and that the housing sleeve, the compressor housing portion and a cylinder housing block, which accommodates the cylinders, as well as the motor housing portion form a single-piece part, in particular made of lightweight material.
Claims52
A refrigerant compressor unit, comprising a housing with a housing sleeve closed at the end, the housing sleeve comprising a compressor housing portion in which there are arranged at least two cylinders, each with a piston arranged therein, and a drive chamber with drive units arranged therein and driven by a drive shaft, wherein the housing sleeve comprises a motor compartment with an electric motor arranged therein and driving the drive shaft, wherein a valve plate covering the cylinders is arranged on the housing sleeve and carries a cylinder head on its side opposite the cylinders, in which cylinder head at least one inlet chamber and at least one outlet chamber are arranged,
- wherein the cylinder head is manufactured from a cast material comprising iron, and wherein the housing sleeve, together with the compressor housing portion and a cylinder housing block, which accommodates the cylinders, and the motor housing portion form a single-piece part, in particular made of lightweight material.
Dependencies are inferred from the claim text.