Scroll compressor with high side to low side oil bleed valve

Pumps – Condition responsive control of pump drive motor – Responsive to pump lubricant – sealant – or coolant condition

Reexamination Certificate

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Details

C417S228000, C418S055100, C418S270000, C184S006100, C184S006400

Reexamination Certificate

active

07547195

ABSTRACT:
A scroll compressor is provided with an oil bleed valve that selectively communicates a discharge pressure chamber to a suction pressure chamber. The oil bleed valve controls flow of hot oil through a passage and onto a safety shutoff switch for an electric motor.

REFERENCES:
patent: 5174740 (1992-12-01), Jang
patent: 5248244 (1993-09-01), Ho et al.
patent: 6280146 (2001-08-01), Bush et al.
patent: 6485268 (2002-11-01), Hugenroth et al.
patent: 6648607 (2003-11-01), Milliff et al.
patent: 6848889 (2005-02-01), Hugenroth
patent: 7396213 (2008-07-01), Hugenroth
patent: 2003/0035736 (2003-02-01), Nam
patent: 1130265 (2002-05-01), None
patent: 03237286 (1991-10-01), None

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