Non-positive-displacement machine comprising a spiral...

Details Non-positive-displacement machine comprising a spiral... Non-positive-displacement machine comprising a spiral...

2004-11-03

2011-11-22

Freay, Charles (Department: 3746)

Pumps

Motor driven

Fluid motor

C417S406000, C415S203000, C415S204000, C415S205000, C060S605200

Reexamination Certificate

active

08062006

ABSTRACT:
A non-positive-displacement machine (10), particularly a turbomachine for producing a mass flow, having a central housing part (11) inside which a turbine shaft is mounted. A turbine housing is mounted on the central housing part (11) on a turbine side and a compressor housing is mounted on the central housing part (11) on a compressor side. The spiral channels (17, 18) required for the compressor side and for the turbine side can be arranged in a partial area inside the covers (15, 16) and at least in one partial area inside the central housing part (11). This permits the contours, which are required for the spiral channels (17, 18) and which are geometrically complex, to be constructed in the central housing part (11).

REFERENCES:
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patent: 3844676 (1974-10-01), Betteridge
patent: 4009668 (1977-03-01), King et al.
patent: 4598542 (1986-07-01), Reynolds
patent: 5951019 (1999-09-01), Slack et al.
patent: 6145846 (2000-11-01), Slack et al.
patent: 2005/0069427 (2005-03-01), Roemuss et al.
patent: 1 394 366 (2004-03-01), None
patent: 1 315 307 (1973-05-01), None
International Search Report dated Mar. 8, 2005 (Six (6) pages).

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