Refrigeration – Automatic control – Selective heating or cooling
Reexamination Certificate
2008-04-15
2008-04-15
Ali, Mohammad M. (Department: 3744)
Refrigeration
Automatic control
Selective heating or cooling
C062S468000
Reexamination Certificate
active
07356998
ABSTRACT:
Disclosed herein is a flash tank of a two-stage compression heat pump system that can perform cooling and heating with a separate type intercooler and a high-stage compressor protecting device. The system comprises a fluid-level detecting sensor for detecting the fluid-level of the refrigerant, an alarm sensor for notifying the saturated state of the refrigerant filled in the flash tank, an evaporator pressure sensor for measuring and notifying the pressure of the refrigerant flowing into the evaporator, a condenser pressure sensor for measuring and notifying the pressure of the refrigerant flowing out of the condenser, a flash tank fluid-level controller for receiving signals from the above sensors and controlling intermediate pressure and the fluid-level of the flash tank, and a bypass valve controller for controlling a bypass valve that receives signals from the alarm sensor and allowing a refrigerant to directly flow from the low-stage compressor to the high-stage compressor.
REFERENCES:
patent: 4023738 (1977-05-01), Ogihara et al.
patent: 4100762 (1978-07-01), Davis et al.
patent: 4326387 (1982-04-01), Friedman
patent: 4942741 (1990-07-01), Hancock et al.
patent: 4967570 (1990-11-01), Van Steenburgh, Jr.
patent: 5074213 (1991-12-01), Kurosawa
patent: 5400609 (1995-03-01), Sjoholm et al.
patent: 5410889 (1995-05-01), Sjoholm et al.
patent: 5465587 (1995-11-01), Sjoholm et al.
patent: 2001-336860 (2001-12-01), None
Baik Yong Jin
Jang Ki Chang
Kim Jong Ryul
Lee Wook Hyun
Lee Young Soo
Ali Mohammad M.
Korean Institute of Energy Research
Michael Best & Friedrich
LandOfFree
Flash tank of two-stage compression heat pump system for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flash tank of two-stage compression heat pump system for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flash tank of two-stage compression heat pump system for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2782549