US7174732B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling control device for condenser
Assignee: Honda Motor Co Ltd
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Filing: 2004-09-30
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Granted: 2007-02-13
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Expires: 2024-09-30
Abstract
Abstract Cooling control device for a condenser is provided which includes the condenser, a cooling device for cooling the condenser, and a control device for controlling the cooling device. The cooling device includes a first cooling fan for cooling a gaseous-phase portion of the condenser, and two second cooling fans for cooling a liquid-phase portion of the condenser independently of the first cooling fan. The control device also includes a pressure control section for optimally adjusting a pressure within the gaseous-phase portion, and a temperature control section for optimally adjusting a temperature within the liquid-phase portion. The pressure control section operates the first cooling fan, in accordance with a detected pressure within the gaseous-phase portion, to adjust the pressure within the gaseous-phase portion. The temperature control section operates the second cooling fans, in accordance with a detected temperature within the liquid-phase portion, to adjust the temperature within the liquid-phase portion.
Inventors
- 👤 Hiroyoshi Taniguchi
- 👤 Makoto Uda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:16
CPC Classifications
F; F01; F01K; F01K23/00; F01K23/02; F01K23/06; F01K23/065; B; B01; B01D; B01D5/00; B01D5/0078; B01D5/0093; F01K9/00; F16; F16T; F16T1/00; F16T1/02; F16T1/10
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
143 words
A cooling control device for a condenser comprising: said condenser for converting a gaseous-phase working medium, discharged from an expander, back to a liquid-phase working medium; a supply pump for supplying the liquid-phase working medium, discharged from said condenser, to an evaporator in a pressurized condition; first cooling means for cooling a gaseous-phase portion of said condenser; second cooling means for cooling a liquid-phase portion of said condenser; pressure control means for adjusting a pressure within the gaseous-phase portion by driving said first cooling means in accordance with a detected pressure within the gaseous-phase portion; temperature control means for adjusting a temperature within the liquid-phase portion by driving said second cooling means in accordance with a detected temperature within the liquid-phase portion; and said first and second cooling means being independently responsive to said pressure control means and said temperature control means, respectively.
Claim 2
Dependent Claim
143 words
A cooling control device for a condenser comprising: said condenser for converting a gaseous-phase working medium, discharged from an expander, back to a liquid-phase working medium; a supply pump for supplying the liquid-phase working medium, discharged from said condenser, to an evaporator in a pressurized condition; first cooling means for cooling a gaseous-phase portion of said condenser; second cooling means for cooling a liquid-phase portion of said condenser; pressure control means for adjusting a pressure within the gaseous-phase portion by driving said first cooling means in accordance with a detected pressure within the gaseous-phase portion; temperature control means for adjusting a temperature within the liquid-phase portion by driving said second cooling means in accordance with a detected temperature within the liquid-phase portion; and said first and second cooling means being independently responsive to said pressure control means and said temperature control means, respectively.
Claim 3
Dependent Claim
42 words
A cooling control device as claimed in claim 1 wherein said pressure control means controls said first cooling means so that the pressure of the gaseous-phase portion is kept lower than the pressure of the gaseous-phase working medium discharged from the expander.
Claim 4
Dependent Claim
40 words
A cooling control device as claimed in claim 1 wherein said pressure control means controls said first cooling means so that the pressure of the gaseous-phase portion is kept higher than a pump-cavitation producing pressure of the liquid-phase working medium.
Claim 5
Dependent Claim
40 words
A cooling control device as claimed in claim 1 wherein said temperature control means controls said second cooling means so that the temperature of the liquid-phase portion is kept lower than a pump-cavitation producing temperature of the liquid-phase working medium.
Claim 6
Dependent Claim
42 words
A cooling control device as claimed in claim 1 wherein said temperature control means controls at least the temperature of a discharged liquid-phase working medium near an outlet port of said condenser, as the temperature of the liquid-phase portion to be adjusted.
Claim 7
Dependent Claim
218 words
A cooling control device for a condenser in a Rankine cycle apparatus comprising: an evaporator for heating a liquid-phase working medium to produce a gaseous-phase working medium; an expander for converting heat energy of the gaseous-phase working medium, discharged from said evaporator, into mechanical energy; said condenser for cooling the gaseous-phase working medium, discharged from said expander, to convert the gaseous-phase working medium back to the liquid-phase working medium; a supply pump for supplying the liquid-phase working medium, discharged from said condenser, to said evaporator in a pressurized condition; first cooling means for cooling a gaseous-phase portion of said condenser; second cooling means for cooling a liquid-phase portion of said condenser, said second cooling means being operable independently of said first cooling means; pressure control means for adjusting a cooling efficiency of the gaseous-phase portion by driving said first cooling means in accordance with a detected pressure of the gaseous-phase portion, to thereby adjust the pressure within the gaseous-phase portion; temperature control means for adjusting a cooling efficiency of the liquid-phase portion by driving said second cooling means in accordance with a detected temperature of the liquid-phase portion, to thereby adjust the pressure within the liquid-phase portion; and said first and second cooling means being independently responsive to said pressure control means and said temperature control means, respectively.
Claim 8
Dependent Claim
218 words
A cooling control device for a condenser in a Rankine cycle apparatus comprising: an evaporator for heating a liquid-phase working medium to produce a gaseous-phase working medium; an expander for converting heat energy of the gaseous-phase working medium, discharged from said evaporator, into mechanical energy; said condenser for cooling the gaseous-phase working medium, discharged from said expander, to convert the gaseous-phase working medium back to the liquid-phase working medium; a supply pump for supplying the liquid-phase working medium, discharged from said condenser, to said evaporator in a pressurized condition; first cooling means for cooling a gaseous-phase portion of said condenser; second cooling means for cooling a liquid-phase portion of said condenser, said second cooling means being operable independently of said first cooling means; pressure control means for adjusting a cooling efficiency of the gaseous-phase portion by driving said first cooling means in accordance with a detected pressure of the gaseous-phase portion, to thereby adjust the pressure within the gaseous-phase portion; temperature control means for adjusting a cooling efficiency of the liquid-phase portion by driving said second cooling means in accordance with a detected temperature of the liquid-phase portion, to thereby adjust the pressure within the liquid-phase portion; and said first and second cooling means being independently responsive to said pressure control means and said temperature control means, respectively.
Claim 9
Dependent Claim
42 words
A cooling control device as claimed in claim 6 wherein said pressure control means controls said first cooling means so that the pressure of the gaseous-phase portion is kept lower than the pressure of the gaseous-phase working medium discharged from the expander.
Claim 10
Dependent Claim
40 words
A cooling control device as claimed in claim 6 wherein said pressure control means controls said first cooling means so that the pressure of the gaseous-phase portion is kept higher than a pump-cavitation producing pressure of the liquid-phase working medium.
Claim 11
Dependent Claim
40 words
A cooling control device as claimed in claim 6 wherein said temperature control means controls said second cooling means so that the temperature of the liquid-phase portion is kept lower than a pump-cavitation producing temperature of the liquid-phase working medium.
Claim 12
Dependent Claim
42 words
A cooling control device as claimed in claim 6 wherein said temperature control means controls at least the temperature of a discharged liquid-phase working medium near the outlet port of said condenser, as the temperature of the liquid-phase portion to be adjusted.
Claim 13
Dependent Claim
124 words
A control device for a cooling device for cooling a condenser that converts a gaseous-phase working medium back to a liquid-phase working medium, said control device comprising: first cooling means for cooling a gaseous-phase portion of said condenser; second cooling means for cooling a liquid-phase portion of said condenser; pressure control means for adjusting a pressure within the gaseous-phase portion by driving said first cooling means in accordance with a detected pressure of the gaseous-phase portion; temperature control means for adjusting a temperature within the liquid-phase portion by driving said second cooling means in accordance with a detected temperature of the liquid-phase portion; and said first and second cooling means being independently responsive to said pressure control means and said temperature control means, respectively.
Claim 14
Dependent Claim
124 words
A control device for a cooling device for cooling a condenser that converts a gaseous-phase working medium back to a liquid-phase working medium, said control device comprising: first cooling means for cooling a gaseous-phase portion of said condenser; second cooling means for cooling a liquid-phase portion of said condenser; pressure control means for adjusting a pressure within the gaseous-phase portion by driving said first cooling means in accordance with a detected pressure of the gaseous-phase portion; temperature control means for adjusting a temperature within the liquid-phase portion by driving said second cooling means in accordance with a detected temperature of the liquid-phase portion; and said first and second cooling means being independently responsive to said pressure control means and said temperature control means, respectively.
Claim 15
Dependent Claim
52 words
A control device as claimed in claim 11 wherein an expander for converting heat energy into mechanical energy is provided upstream of said condenser, and a supply pump is provided downstream of said condenser for supplying the liquid-phase working medium, discharged from said condenser, to a succeeding stage in a pressurized condition.
Claim 16
Dependent Claim
48 words
A control device as claimed in claim 11 wherein a compressor for discharging the gaseous-phase working medium is provided upstream of said condenser, and an expansion valve for converting the liquid-phase working medium, discharged from said condenser, to the gaseous-phase working medium is provided downstream of said condenser.
Claim 17
Dependent Claim
44 words
A control device as claimed in claim 11 wherein said pressure control means controls said first cooling means so that the pressure of the gaseous-phase portion is kept lower than the pressure of the gaseous-phase working medium supplied from upstream of the gaseous-phase portion.
Claim 18
Dependent Claim
45 words
A control device as claimed in claim 11 wherein said pressure control means controls said first cooling means so that the pressure of the gaseous-phase portion is kept higher than a pump-cavitation producing pressure of the liquid-phase working medium present downstream of the gaseous-phase portion.
Claim 19
Dependent Claim
44 words
A control device as claimed in claim 11 wherein said temperature control means controls said second cooling means so that the temperature of the liquid-phase portion is kept lower than a pump-cavitation producing temperature of the liquid-phase working medium downstream of the liquid-phase portion.
Claim 20
Dependent Claim
41 words
A control device as claimed in claim 11 wherein said temperature control means controls at least the temperature of a discharged liquid-phase working medium near the outlet port of said condenser, as the temperature of the liquid-phase portion to be adjusted.
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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) | 2010-02-12 | 2010-08-14 | 2011-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-02-12 | 2014-08-14 | 2015-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-02-12 | 2018-08-14 | 2019-02-13 | $7700.00 | Window Closed / Lapsed |