Scroll compressor

Details Scroll compressor Scroll compressor

2005-05-17

2005-05-17

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

C418S057000, C418S094000

Reexamination Certificate

active

06893235

ABSTRACT:
A lubrication path to press-contact surfaces of a fixed and orbiting scrolls serves also as a high-level pressure introduction passageway when a difference between a high-level pressure and a low-level pressure is great. On the other hand, when the high-level pressure introduction passageway is blocked off in a state in which the high-low pressure difference is small, refrigerating machine oil is supplied to the press-contact surfaces through a low-level pressure space within the casing, for controlling the pressing force of the orbiting scroll against the fixed scroll, and the construction for preventing a decrease in efficiency is simplified, thereby not only reducing the cost but also preventing the occurrence of a maloperation.

REFERENCES:
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patent: 6086342 (2000-07-01), Utter
patent: 6135739 (2000-10-01), Ogawa et al.
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patent: 2000-329075 (2000-11-01), None
patent: 2001-214872 (2001-08-01), None

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