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US 7,144,226 B2Granted
Centrifugal compressor having a flexible coupling
AssigneeThermodyn
InventorsJean-Marc Pugnet, Patrick Friez, Pierre Laboube
Life of this patent
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Abstract
This compressor unit comprises a motor (34) and at least one compressor (44) comprising a driven shaft (54) driven by the rotor of the motor and bladed wheels fitted on the driven shaft (54), the assembly composed of the motor and the compressor being installed in a common casing (55) leak tight to the gas manipulated by the compressor unit. The rotor and the driven shaft are connected through a flexible coupling (72) placed in the casing.
Claims19
Centrifugal compressor unit comprising a motor (34), at least one compressor (44;
- 44′, 44″) comprising a driven shaft (54;
- 54′, 54″) driven by a rotor (38) of the motor and a set of bladed wheels fitted on the driven shaft, an assembly composed of the motor and the compressor being installed in a common casing (55) leak tight to the gas manipulated by the compressor unit, characterised in that the rotor and the driven shaft are connected through a flexible coupling (72;
- 72′, 72″) placed in the casing, and characterized in that each end of the driven shaft and the rotor is supported on an end bearing (40, 42, 55, 56) which suspends the respective end.
A centrifugal compressor unit, comprising:
- an electric motor comprising a driving rotor;
- at least one compressor comprising a driven shaft and a set of bladed wheels fitted on the driven shaft;
- a flexible coupling connected to the rotor and to the driven shaft so that the rotor drives the driven shaft via the flexible coupling;
- and
- a common casing, wherein,
- an assembly comprised of the motor, the flexible coupling, and the compressor are installed in the common casing leak tight to gas manipulated by the compressor unit, with the flexible coupling placed in the common casing and the gas surrounding the compressor and the flexible coupling, and
- each end of the driven shaft and the rotor is supported on an end bearing (40, 42, 55, 56) which suspends the respective end.
4 more elements
A centrifugal compressor unit, comprising:
- an assembly comprising an electric motor driving a compressor unit via a flexible coupling,
- the electric motor with a rotation speed of 6,000 to 16,000 rpm comprising a stator and a rotor,
- the compressor unit comprising a set of bladed wheels installed on a driven shaft,
- the flexible coupling connected to the rotor of the motor and to the driven shaft of the compressor unit;
- and
- a common casing holding the assembly tight to gas manipulated by the compressor with the coupling being within the casing and the gas surrounding the compressor and the flexible coupling,
- the casing composed of a casing assembly of casing elements fixed together, each casing element providing support and protection of the motor or a stage of the compression unit, wherein,
- the coupling is one of the group consisting of a diaphragm coupling, a flexible blade coupling, and a torsionally flexible shaft coupling, and
- the casing comprises an orifice that opens out facing a junction area between the rotor and the driven shaft to provide access to the coupling, and
- characterized in that each end of the driven shaft and the rotor is supported on an end bearing (40, 42, 55, 56) which suspends the respective end.
7 more elements
Dependencies are inferred from the claim text.