Scroll compressor with wrap walls provided with an abradable...

Details Scroll compressor with wrap walls provided with an abradable... Scroll compressor with wrap walls provided with an abradable...

2007-02-20

2007-02-20

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

C418S055100, C418S178000

Reexamination Certificate

active

10756019

ABSTRACT:
An abradable coating is formed on portions of the flank wall of the wraps of a scroll compressor. The radially outer portions of the flank wall are left uncoated, and can bear a force between the scroll wraps. In this manner, the load is not transferred through a coated portion, but rather through the uncoated portion. As the scroll wraps move relative to each other at run-in, the abradable coating wears away leaving a tight fit between the flank walls at the radially inner locations.

REFERENCES:
patent: 6887052 (2005-05-01), Bush et al.
patent: 05280478 (1993-10-01), None
patent: 2000130366 (2000-05-01), None

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