US7650761B2
Active / In Force
US
⏱️ 1.5 years remaining
Refrigerating device comprising waste heat utilization equipment
Assignee: Denso Corp
•
Filing: 2008-05-06
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Granted: 2010-01-26
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Expires: 2028-05-06
Abstract
Abstract In a refrigerating device comprising waste heat utilization equipment having: a refrigerating cycle 200 formed by sequentially connecting a compressor 210 , a condenser 220 , an expansion valve 240 , and an evaporator 250 ; and a Rankine cycle 300 formed by sequentially connecting a heater 310 using the waste heat of a heat generating device (for example, an internal combustion engine) 10 as a heating source, an expansion device 320 , the above-mentioned condenser 220 , and a pump 330 , in which the drive shafts of the compressor 210 and the expansion device 320 are separated from each other. Then, the output of the expansion device 320 is used mainly for generating electricity.
Inventors
- 👤 Atsushi Inaba
- 👤 Yasushi Yamanaka
- 👤 Shigeru Hisanaga
- 👤 Takashi Yamanaka
- 👤 Hironori Asa
- 👤 Hiroshi Kisita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:45
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/32; B60H1/3204; B60H1/3222; F; F25; F25B; F25B27/00; F25B27/02; B60H2001/3286; B60H2001/3297; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02A30/274
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
129 words
A refrigerating device comprising waste heat utilization equipment having: a refrigerating cycle comprising a compressor, a condenser, an expansion valve, and an evaporator which are sequentially connected; a Rankine cycle comprising a heater using the waste heat of a heating device as a heating source, an expansion device, the condenser, and a pump, which are sequentially connected, an electric generator driven by the expansion device, a control circuit, and at least a battery, wherein the control circuit controls the electricity generation of the electric generator, in accordance with an amount of electric energy stored in the battery by controlling the rotation speed of the electric generator; drive shafts of the compressor and the expansion device are separated from each other, and the compressor is driven by an electric motor.
Claim 2
Dependent Claim
129 words
A refrigerating device comprising waste heat utilization equipment having: a refrigerating cycle comprising a compressor, a condenser, an expansion valve, and an evaporator which are sequentially connected; a Rankine cycle comprising a heater using the waste heat of a heating device as a heating source, an expansion device, the condenser, and a pump, which are sequentially connected, an electric generator driven by the expansion device, a control circuit, and at least a battery, wherein the control circuit controls the electricity generation of the electric generator, in accordance with an amount of electric energy stored in the battery by controlling the rotation speed of the electric generator; drive shafts of the compressor and the expansion device are separated from each other, and the compressor is driven by an electric motor.
Claim 3
Dependent Claim
25 words
The refrigerating device comprising waste heat utilization equipment as set forth in claim 1 , wherein the heat generating device is an internal combustion engine.
Claim 4
Dependent Claim
33 words
The refrigerating device comprising waste heat utilization equipment as set forth in claim 2 , wherein the compressor is driven by at least one of the internal combustion engine and the electric motor.
Claim 5
Dependent Claim
60 words
The refrigerating device comprising waste heat utilization equipment as set forth in claim 2 , further comprising: a main electric generator driven by the internal combustion engine, wherein the main electric generator comprises means for controlling the amount of electricity to be generated by the main electric generation in accordance with the amount of electric energy stored in the battery.
Claim 6
Dependent Claim
26 words
The refrigerating device comprising waste heat utilization equipment as set forth in claim 1 , wherein output of the expansion device is used for generating electricity.
Claim 7
Dependent Claim
27 words
The refrigerating device comprising waste heat utilization equipment as set forth in claim 1 , wherein output of the expansion device is used for driving the pump.
Claim 8
Dependent Claim
40 words
The refrigerating device comprising waste heat utilization equipment as set forth in claim 1 , wherein: the electricity generation control of the electric generator is carried out by controlling the rotation speed of an electric motor for driving the pump.
Claim 9
Dependent Claim
63 words
The refrigerating device comprising waste heat utilization equipment as set forth in claim 1 , wherein the refrigerating device is mounted on a hybrid vehicle, the hybrid vehicle comprises: a motor generator, wherein the motor generator comprises means for controlling the amount of electricity to be generated by the motor generator in accordance with the amount of electric energy stored in the battery.
Claim 10
Dependent Claim
121 words
A refrigerating device comprising waste heat utilization equipment having: a refrigerating cycle comprising a compressor, a condenser, an expansion valve, and an evaporator which are sequentially connected; and a Rankine cycle comprising a heater using the waste heat of a heating device as a heating source, an expansion device, the condenser, and a pump, which are sequentially connected, an electric generator driven by the expansion device, a control circuit, and at least a battery, wherein drive shafts of the compressor and the expansion device are separated from each other, and the control circuit controls the electricity generation of the electric generator, in accordance with amount of electric energy stored in the battery by controlling the rotation speed of the electric generator.
Claim 11
Dependent Claim
121 words
A refrigerating device comprising waste heat utilization equipment having: a refrigerating cycle comprising a compressor, a condenser, an expansion valve, and an evaporator which are sequentially connected; and a Rankine cycle comprising a heater using the waste heat of a heating device as a heating source, an expansion device, the condenser, and a pump, which are sequentially connected, an electric generator driven by the expansion device, a control circuit, and at least a battery, wherein drive shafts of the compressor and the expansion device are separated from each other, and the control circuit controls the electricity generation of the electric generator, in accordance with amount of electric energy stored in the battery by controlling the rotation speed of the electric generator.
Claim 12
Dependent Claim
25 words
The refrigerating device comprising waste heat utilization equipment as set forth in claim 9 , wherein the heat generating device is an internal combustion engine.
Claim 13
Dependent Claim
25 words
The refrigerating device comprising waste heat utilization equipment as set forth in claim 10 , wherein the compressor is driven by the internal combustion engine.
Claim 14
Dependent Claim
33 words
The refrigerating device comprising waste heat utilization equipment as set forth in claim 10 , wherein the compressor is driven by at least one of the internal combustion engine and the electric motor.
Claim 15
Dependent Claim
56 words
The refrigerating device comprising waste heat utilization equipment as set forth in claim 10 , further comprising a main electric generator driven by the internal combustion engine, wherein the main electric generator comprises a control means for controlling the amount of electricity to be generated in accordance with amount of electric energy stored in the battery.
Claim 16
Dependent Claim
27 words
The refrigerating device comprising waste heat utilization equipment as set forth in claim 9 , wherein output of the expansion device is used for driving the pump.
Claim 17
Dependent Claim
57 words
The refrigerating device comprising waste heat utilization equipment as set forth in claim 9 , wherein the refrigerating device is mounted on a hybrid vehicle, the hybrid vehicle comprises a motor generator including a control means for controlling the amount of electricity to be generated in accordance with the amount of electric energy stored in the battery.
Claim 18
Dependent Claim
51 words
The refrigerating device comprising waste heat utilization equipment as set forth in claim 9 , wherein the pump includes an electric motor to drive the pump, and the electricity generation control of the electric generator is carried out by controlling the rotation speed of the electric motor for driving the pump.
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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) | 2013-01-25 | 2013-07-27 | 2014-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2017-01-25 | 2017-07-27 | 2018-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2021-01-25 | 2021-07-27 | 2022-01-26 | $7700.00 | Window Closed / Lapsed |