Rotary expansible chamber devices – With mechanical sealing – Seal element between working member and cylinder
Patent
1996-04-04
1997-12-09
Vrablik, John J.
Rotary expansible chamber devices
With mechanical sealing
Seal element between working member and cylinder
4182011, F04C 1816, F04C 2700
Patent
active
056953275
ABSTRACT:
The present invention pertains to a dry-running screw compressor, in which the suction-side bearing housing and the pressure-side bearing housing are provided on the inside with journals for engaging holes in the rotors. The two rotors within the compressor housing include only the body of the ribbed rotor and grooved rotor, and the journals of the rotors, which are located on the outside for mounting, are eliminated. The rotors are mounted on the pressure-side journals by means of radial and thrust bearings which are secured by corrugated nuts. Only radial bearings are used on the suction-side journals. The sealing between the tooth spaces of the rotors is ensured by means of sealing disks. To maintain the distance between the rotor faces, gearwheels are inserted on the pressure side between the sealing housing and the bearing housing. The ribbed rotor is driven in this exemplary embodiment with a coupling half for the drive via a torsion shaft.
REFERENCES:
patent: 2746394 (1956-05-01), Dolza et al.
patent: 4490102 (1984-12-01), Carre et al.
Heinen Manfred
Reinersmann Hans-H.
MAN Gutehoffnungshute Aktiengesellschaft
Vrablik John J.
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