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US 8,007,260 B2Granted
Scroll fluid machine having a coupling mechanism to allow relative orbiting movement of scrolls
AssigneeAnest Iwata Corporation
InventorKen Yanagisawa
Life of this patent
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Abstract
A scroll fluid machine has a stationary scroll having a stationary scroll lap fixed to a scroll casing and an orbiting scroll having an orbiting scroll lap that orbits relative to the stationary scroll lap. The stationary and orbiting scrolls are connected via a coupling mechanism other than an Oldham coupling or pin crank type mechanism having sliding parts. The coupling mechanism includes plate springs that connect the stationary scroll to the orbiting scroll. The orbiting scroll lap engages with the stationary scroll lap to form a closed compression chamber.
Claims6
A scroll fluid machine comprising:
- a first scroll having a first scroll lap;
- a second scroll having a second scroll lap;
- and
- at least one plate spring member connecting the first and second scrolls,
- wherein the at least one plate spring member at least partly surrounds the first and second scroll laps with a face of the at least one plate spring member facing radially inwardly,
- wherein a rotation axis of the first scroll is not co-linear with a rotation axis of the second scroll to enable a relative orbiting motion between the first and second scrolls.
3 more elements
Dependencies are inferred from the claim text.