US4471622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rankine cycle apparatus
Assignee: Toshiba Corp
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Filing: 1982-07-13
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Granted: 1984-09-18
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Expires: 2002-07-13
Abstract
Abstract A Rankine cycle apparatus comprises a circulating pump for circulating a working medium through the apparatus, a gas generator having a tube connected with the outlet side of the circulating pump wherein the working medium flowing in the tube is evaporated, an expander connected with the outlet side of the tube of the gas generator, a condenser having a tube connected between the outlet side of the expander and the inlet side of the circulating pump wherein the working medium flowing the tube is condensed, pressure and temperature sensors for sensing the pressure and temperature of the working medium at the outlet side of the gas generator, and a flow control valve for controlling the rate of flow of the working medium to the gas generator on the basis of the pressure and temperature sensed by the sensors.
Inventors
- 👤 Eiji Kuwahara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:35
CPC Classifications
F; F01; F01K; F01K25/00; F01K25/08; F25; F25B; F25B27/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
172 words
A Rankine cycle apparatus comprising: a circulating pump for circulating a working medium through the apparatus; a gas generator having a tube connected with the outlet side of the circulating pump wherein the working medium flowing in the tube is evaporated; an expander connected with the outlet side of the tube of the gas generator; a condenser having a tube connected between the outlet side of the expander and the inlet side of the circulating pump wherein the working medium flowing in the tube is condensed; sensing means for sensing the pressure and temperature of the working medium between the inlet side of the expander and the outlet side of the condenser, wherein said sensing means includes a pressure sensor and a temperature sensor for sensing the pressure and temperature, respectively, of the working medium at the outlet side of the condenser; and control means for controlling the rate of flow of the working medium to the gas generator on the basis of the pressure and temperature sensed by the sensing means.
Claim 2
Dependent Claim
172 words
A Rankine cycle apparatus comprising: a circulating pump for circulating a working medium through the apparatus; a gas generator having a tube connected with the outlet side of the circulating pump wherein the working medium flowing in the tube is evaporated; an expander connected with the outlet side of the tube of the gas generator; a condenser having a tube connected between the outlet side of the expander and the inlet side of the circulating pump wherein the working medium flowing in the tube is condensed; sensing means for sensing the pressure and temperature of the working medium between the inlet side of the expander and the outlet side of the condenser, wherein said sensing means includes a pressure sensor and a temperature sensor for sensing the pressure and temperature, respectively, of the working medium at the outlet side of the condenser; and control means for controlling the rate of flow of the working medium to the gas generator on the basis of the pressure and temperature sensed by the sensing means.
Claim 3
Dependent Claim
22 words
The Rankine cycle apparatus according to claim 1 wherein said control means includes means for controlling the discharge of the circulating pump.
Claim 4
Dependent Claim
26 words
The Rankine cycle apparatus according to claim 1 wherein said control means includes a flow control valve provided between the circulating pump and the gas generator.
Claim 5
Dependent Claim
40 words
The Rankine cycle apparatus according to claim 1 wherein said control means includes a by-pass of the circulating pump connected between the condenser and the inlet side of the gas generator, and a flow control valve attached to the by-pass.
References Cited (Backward Citations)
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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) | 1987-09-18 | 1988-03-19 | 1988-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-18 | 1992-03-19 | 1992-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-18 | 1996-03-19 | 1996-09-18 | $7700.00 | Window Closed / Lapsed |