US5018367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling energy generator with cooling energy accumulator
Assignee: Hitachi Ltd
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Filing: 1989-07-31
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Granted: 1991-05-28
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Expires: 2009-07-31
Abstract
Abstract A cooling energy generator with a cooling energy accumulator comprises a refrigerant, absorbent liquid, and a container having a first chamber receiving the absorbent liquid, a second chamber receiving the liquid refrigerant and a vapor passage communicating with a space over the absorbent liquid in the first chamber and with a space over the liquid refrigerant in the second chamber. The absorbent liquid is sprayed in the first chamber, and the absorbent liquid is cooled during an accelerated cooling operation. The absorbent liquid is heated during the cooling energy accumulation operation, and liquid refrigerant is sprayed in the second chamber during the accelerated cooling operation and during the normal cooling operation. An air conditioning heat exchanger supplies the cooling energy to a cooling device for air conditioning, and a heat pump is provided. The cooling energy generator with the cooling energy accumulator continues to generate cooling energy for normal air cooling without any additional device even when the refrigerant is not absorbed by the absorbent because the refrigerant is circulated in the second chamber to generate the normal cooling energy.
Inventors
- 👤 Akira Yamada
- 👤 Isao Ohkouchi
- 👤 Yasuo Koseki
- 👤 Hideaki Kurokawa
- 👤 Katsuya Ebara
- 👤 Sankichi Takahashi
- 👤 Risuke Onoda
- 👤 Shigeo Sugimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:53
CPC Classifications
F; F25; F25B; F25B25/00; F25B25/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
243 words
A cooling energy generator with a cooling energy accumulator, comprising: refrigerant which absorbs a latent heat when the refrigerant evaporates, absorbent liquid which includes and absorbs the refrigerant therein, a container having a first chamber receiving the absorbent liquid, a second chamber receiving the liquid refrigerant and a vapor passage communicating with the space over the absorbent liquid in the first chamber and with a space over the liquid refrigerant in the second chamber so that the refrigerant vapor passes through the vapor passage but the absorbent liquid and the liquid refrigerant can not pass through the vapor passage, absorbent spraying means for spraying the absorbent liquid in the first chamber, means for cooling the absorbent liquid during the accelerated cooling operation and for heating the absorbent liquid during a cooling energy accumulating operation, refrigerant spraying means for spraying the liquid refrigerant in the second chamber during the accelerated cooling operation and during a normal cooling operation, air-conditioning heat exchanger arranged under the refrigerant spraying means, the air-conditioning heat exchanger supplying cooling energy to a cooling device for air conditioning, and heat pump means having a compressor for compressing heat-pump refrigerant, a heat-pump radiator for cooling the compressed high-temperature heat-pump refrigerant, an orifice for adiabatic expansion of the compressed and cooled heat-pump refrigerant and a heat-pump heat exchanger in which the low-temperature heat-pump refrigerant passes, the heat-pump heat exchanger arranged between the vapor passage and the refrigerant spraying means in the second chamber.
Claim 2
Dependent Claim
243 words
A cooling energy generator with a cooling energy accumulator, comprising: refrigerant which absorbs a latent heat when the refrigerant evaporates, absorbent liquid which includes and absorbs the refrigerant therein, a container having a first chamber receiving the absorbent liquid, a second chamber receiving the liquid refrigerant and a vapor passage communicating with the space over the absorbent liquid in the first chamber and with a space over the liquid refrigerant in the second chamber so that the refrigerant vapor passes through the vapor passage but the absorbent liquid and the liquid refrigerant can not pass through the vapor passage, absorbent spraying means for spraying the absorbent liquid in the first chamber, means for cooling the absorbent liquid during the accelerated cooling operation and for heating the absorbent liquid during a cooling energy accumulating operation, refrigerant spraying means for spraying the liquid refrigerant in the second chamber during the accelerated cooling operation and during a normal cooling operation, air-conditioning heat exchanger arranged under the refrigerant spraying means, the air-conditioning heat exchanger supplying cooling energy to a cooling device for air conditioning, and heat pump means having a compressor for compressing heat-pump refrigerant, a heat-pump radiator for cooling the compressed high-temperature heat-pump refrigerant, an orifice for adiabatic expansion of the compressed and cooled heat-pump refrigerant and a heat-pump heat exchanger in which the low-temperature heat-pump refrigerant passes, the heat-pump heat exchanger arranged between the vapor passage and the refrigerant spraying means in the second chamber.
Claim 3
Dependent Claim
39 words
A cooling energy generator with a cooling energy accumulator according to claim 1, wherein a heating energy of the means for heating the absorbent liquid is supplied from the compressed high-temperature heat-pump refrigerant between the compressor and the orifice.
Claim 4
Dependent Claim
28 words
A cooling energy generator with a cooling energy accumulator according to claim 1, wherein the absorbent spraying means is arranged at a highest portion of the first chamber.
Claim 5
Dependent Claim
31 words
A cooling energy generator with a cooling energy accumulator according to claim 1, wherein the heat-pump heat exchanger is arranged at a level lower than a level of the vapor passage.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-27 | 1994-11-26 | 1995-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-27 | 1998-11-26 | 1999-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-27 | 2002-11-26 | 2003-05-28 | $7700.00 | Window Closed / Lapsed |