US4238932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure charge storage system
Assignee: General Electric Co
•
Filing: 1979-07-23
•
Granted: 1980-12-16
•
Expires: 1999-07-23
Abstract
Abstract A refrigeration system of the type for conditioning the air within an enclosure and is more particularly concerned with a system comprising flow control means for controlling the flow of refrigerant through the system. The system incorporates charge modulating means for regulating the effective circulating charge of the refrigerant under various operating conditions, including high discharge pressure relief flow control means operable at predetermined high pressure to conduct high pressure liquid refrigerant through the charge modulating means.
Inventors
- 👤 Paul D. Schrader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:32
CPC Classifications
F; F25; F25B; F25B40/00; F25B40/06; F25B41/00; F25B41/20; F25B2400/00; F25B2400/04; F25B2400/0411; F25B2400/16; F25B2600/00; F25B2600/02; F25B2600/026; F25B2600/0261; F25B45/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
173 words
In a refrigeration system including a compressor, condenser, an expansion device dividing said system between high and low pressure sides, an evaporator, and a suction line in series connected to form a closed refrigerant circuit, a refrigerant control means comprising: a storage volume in heat exchange relation with said suction line, including first and second openings, means defining a low-pressure conduit communicating with said first opening and the low side of said refrigeration system at a point intermediate said expansion device and the inlet of said evaporator, means defining a high pressure conduit communicating with said second opening and the high side of said refrigeration system at a point intermediate the outlet of said condenser and said expansion device, pressure-responsive one-way valve means in said high pressure conduit being operable for permitting high-pressure liquid refrigerant flow into said storage volume when a predetermined high pressure is sensed to maintain said high pressure side of said system below said predetermined high pressure by returning said refrigerant to said system through said low pressure conduit.
Claim 2
Dependent Claim
173 words
In a refrigeration system including a compressor, condenser, an expansion device dividing said system between high and low pressure sides, an evaporator, and a suction line in series connected to form a closed refrigerant circuit, a refrigerant control means comprising: a storage volume in heat exchange relation with said suction line, including first and second openings, means defining a low-pressure conduit communicating with said first opening and the low side of said refrigeration system at a point intermediate said expansion device and the inlet of said evaporator, means defining a high pressure conduit communicating with said second opening and the high side of said refrigeration system at a point intermediate the outlet of said condenser and said expansion device, pressure-responsive one-way valve means in said high pressure conduit being operable for permitting high-pressure liquid refrigerant flow into said storage volume when a predetermined high pressure is sensed to maintain said high pressure side of said system below said predetermined high pressure by returning said refrigerant to said system through said low pressure conduit.
Claim 3
Dependent Claim
38 words
The refrigeration system recited in claim 1 wherein a flow control means is arranged in said low pressure conduit for controlling the flow of high pressure refrigerant through said low pressure conduit to prevent flooding of said evaporator.
Claim 4
Dependent Claim
39 words
The refrigeration system recited in claim 2 wherein said flow control means is of the two-way type for allowing refrigerant flow through said low pressure conduit in either direction between said storage volume and said refrigerant system low side.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-16 | 1984-06-16 | 1984-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-16 | 1988-06-16 | 1988-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-16 | 1992-06-16 | 1992-12-16 | $7700.00 | Window Closed / Lapsed |