US4138859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Split heat pump outdoor fan arrangement
Assignee: Trane US Inc
•
Filing: 1977-11-02
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Granted: 1979-02-13
•
Expires: 1997-11-02
Abstract
Abstract A heat pump split system type air conditioner having an indoor and outdoor section, the outdoor section being compartmentalized to provide an insulated compartment containing the motor-compressor and fan motor so that heat from the fan motor and motor-compressor can be partially recovered and added to the circulating system refrigerant to increase the heating capacity of the heat pump.
Inventors
- 👤 Joseph A. Pietsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:09
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/06; F24F1/20; F24D; F24D11/00; F24D11/02; F24D11/0257; F24D11/0278; F24F1/0003; F24F1/46; F24F1/48; F24F1/50; F25; F25B; F25B13/00; F25B30/00; F25B30/02; F24F1/26; F24F1/32; F25B2500/00; F25B2500/02; Y; Y02; Y02B; Y02B10/00; Y02B10/70; Y02B30/00; Y02B30/13; Y02B30/52
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
179 words
A split refrigeration system air conditioner of the heat pump type including an indoor section having an indoor heat exchanger and air moving means for moving indoor air through said heat exchanger, and an outdoor section comprising: a housing; an interior partition means in said housing defining separate first and second compartments arranged within said housing; a motor-compressor means arranged in the first compartment; an electric motor in said first compartment having a rotatably arranged shaft having a portion extending through said partition means into said second compartment; an indoor heat exchanger in said second compartment being arranged between said ingress and egress openings; a fan mounted on said shaft portion in said second compartment for moving outdoor air through said heat exchanger; insulating means surrounding substantially the entire interior wall area of said first compartment so that said first compartment is essentially thermally isolated from said second compartment and the outdoor ambient temperature, and the heat generated by said motor and said motor-compressor is absorbed by refrigerant in said compressor and refrigeration system components in said first compartment.
Claim 2
Dependent Claim
179 words
A split refrigeration system air conditioner of the heat pump type including an indoor section having an indoor heat exchanger and air moving means for moving indoor air through said heat exchanger, and an outdoor section comprising: a housing; an interior partition means in said housing defining separate first and second compartments arranged within said housing; a motor-compressor means arranged in the first compartment; an electric motor in said first compartment having a rotatably arranged shaft having a portion extending through said partition means into said second compartment; an indoor heat exchanger in said second compartment being arranged between said ingress and egress openings; a fan mounted on said shaft portion in said second compartment for moving outdoor air through said heat exchanger; insulating means surrounding substantially the entire interior wall area of said first compartment so that said first compartment is essentially thermally isolated from said second compartment and the outdoor ambient temperature, and the heat generated by said motor and said motor-compressor is absorbed by refrigerant in said compressor and refrigeration system components in said first compartment.
Claim 3
Dependent Claim
31 words
The invention as set forth in claim 1 wherein a refrigeration system reversing valve including suction and discharge lines interconnecting said valve and said compressor is arranged in said first compartment.
Claim 4
Dependent Claim
19 words
The invention as set forth in claim 1 wherein said second compartment is arranged vertically above said first compartment.
Claim 5
Dependent Claim
19 words
The invention as set forth in claim 2 wherein said second compartment is arranged vertically above said first compartment.
References Cited (Backward Citations)
US1942295A
Cited
US2654227A
Cited
US2525869A
Cited
US2894375A
Cited
US2959933A
Cited
US2955439A
Cited
US2978881A
Cited
US3785434A
Cited
US3995442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-12 | 1982-08-14 | 1983-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-12 | 1986-08-14 | 1987-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-12 | 1990-08-14 | 1991-02-13 | $7700.00 | Window Closed / Lapsed |