Scroll expander with exhaust path thru bearings and a partition plate
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United States of America Patent
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Sep 27, 2022
Grant Date -
Aug 19, 2021
app pub date -
May 17, 2019
filing date -
Jun 8, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A housing of a scroll type expansion machine includes: a suction port formed at a position on the opposite side to a drive shaft with a fixed scroll interposed therebetween; a discharge port formed on the side of a drive-side bearing closer to the tip end of the drive shaft; a low pressure chamber formed on the outer side of an orbiting-side scroll portion when viewed from the axial direction of the drive shaft; and a tip end-side low-pressure space being a space in which a sealing member is disposed, and has: a partition wall partitioning the tip end-side low-pressure space and the low-pressure chamber from each other; and a communication space communicating the tip end-side low-pressure space with the low-pressure chamber.
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