Title: Compressor having two or more stages

Abstract: In order to raise the degree of compression without unduly increasing the dimensions a compressor having at least two stages includes a first centripetal stage and a last centrifugal stage mounted upon the same shaft. The diameter at the centripetal stage inlet does not exceed the diameter at the outlet of the centrifugal stage and the air flows radially inwards in the first stage, and radially outwards in the last stage.

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Inventors: Kronogard, Sven-Olof (Lomma, SW)

Application Number: 521540
Filing Date: 1974-11-06
Publication_date: 1976-03-02
Assignee: United Turbine AB & Co., Kommanditbolag (Malmo, SW)
Primary Class(es): 415/116 415/120, 415/160, 415/199.2, 415/199.6
Other Classes:
US Patent Ref:

1213889	Jan, 1917	Lawaczeck	415/198.
3305165	Feb, 1967	Gregory	415/120.

Other Refs: 843,638608,525

Apr, 1939	FR
Sep, 1948	UK

Primary Examiner: Raduazo, Henry F.
Assistant Examiner:
Attorney: Holman & Stern