Rotary piston machine
AssigneesCor Pumps + Compressors AG, Robert Bosch GmbH
InventorFelix Arnold
Life of this patent
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Abstract
An electrically driven rotary piston machine which operates as a rotary piston pump or rotary piston compressor wherein the rotary piston machine has a basic housing, which holds an electrical coil and pump head, wherein the pump working space is preferably bounded by a trochoid toothing of the rotors. The pump head which can usually be manufactured relatively economically is embodied as a disposable part and therefore has a quick-action connection with the more complex basic housing.
Claims10
A rotary piston machine which operates as a pump or a compressor, comprising:
- a pump drive device defining a can motor with a can and a power rotor which is toothed with a driven trochoid,
- a corresponding rotor which engages in the toothing and as a result is correspondingly toothed,
- a working space which is arranged between the rotors,
- a basic housing which holds parts for controlling the pump drive device,
- a pump head which supports the rotors axially and radially, and
- a releasable connecting device between the basic housing and the pump head,
- wherein the can includes a radially extending section between sides of the basic housing and pump head which face one another,
- wherein the pump drive device is divided by the can into a magnet part which is arranged in the power rotor and into a coil part which is arranged in the basic housing and through which current flows,
- wherein the can has a cup shape section that functions as a bearing for the power rotor and the can has a broad flange which is radially clamped in between the basic housing and the pump head;
- and
- wherein the power rotor has a bearing section arranged within the cup shape section of the can and has a permanent magnet.
A rotary piston which operates as a pump or a compressor comprising:
- a pump drive device defining a can motor with a can and a power rotor which is toothed with a driven trochoid,
- a corresponding rotor which engages in the toothing and as a result is correspondingly toothed, a working space which is arranged between the rotors,
- a basic housing which holds parts for controlling the pump drive device,
- a pump head which supports the rotors axially and radially, and
- a releasable connecting device between the basic housing and the pump head,
- wherein the can includes a radially extending section between sides of the basic housing and pump head which face one another,
- wherein the pump drive device is divided by the can into a magnet part which is arranged in the power rotor and toothings engaging one another,
- wherein the can has a cup shape section that functions as a bearing for the power rotor and the can has a broad flange which is radially clamped in between the basic housing and the pump head;
- and
- wherein the power rotor has a bearing section arranged within the cup shape section of the can and has a permanent magnet.
Dependencies are inferred from the claim text.