Title:
SCROLL-TYPE FLUID DISPLACEMENT DEVICE HAVING FLOW DIVERTER, MULTIPLE TIP SEAL AND SEMI-RADIAL COMPLIANT MECHANISM
Document Type and Number:
WIPO Patent Application WO1999015764
Kind Code:
A8
Abstract:
A scroll-type fluid displacement device (10) has two interfitting spiral-shaped scroll members (50, 60) which have predetermined geometric configuration. The novel design provides a flow diverter mechanism (24) which directs intake fluid flow to break incompressible liquid accumulated into fine droplets which can be evenly engulfed by two suction pockets formed by the scrolls. This invention also provides a multiple groove tip seal mechanism (136, 137a, 236) for radially sealing off the compression pockets. This invention further provides a semi-radial compliant mechanism (44, 46, 47) which maintains the radial compliant function of the orbiting scroll (50) and at the same time transfers the load caused by the centrifugal force of the orbiting scroll from the scroll elements to the crank shaft (40).
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Inventors:
NI SHIMAO
HEITZ PHILIP C
HEITZ PHILIP C
Application Number:
PCT/US1998/020034
Publication Date:
June 17, 1999
Filing Date:
September 22, 1998
Export Citation:
Assignee:
MIND TECH CORP (US)
International Classes:
F01C1/02; F01C19/08; F04C18/02; F04C27/00; F04C29/00; F04C29/02; (IPC1-7): F01C1/04; F01C19/08
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