Thermodynamic cycle and heat engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 26, 2013
Grant Date -
May 16, 2013
app pub date -
Mar 25, 2011
filing date -
Mar 26, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
|
US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
A method and arrangement are for heat exchanging in and work exchanging with a working fluid in a heat engine, or a heat pump if the method and its sub-processes are substantially reversed. A thermodynamic cycle for the working fluid is approximately described through the polytropic relation PVn=constant, where P is the pressure, V is the volume and n is the polytropic index of the working fluid with adiabatic index gamma (γ), and wherein the engine consists of at least one working mechanism provided with a first and at least a second volume change chamber, the method comprising in sequence at least the following steps: in a first volume change process, to carry out a first polytropic volume change of the working fluid in a first volume change chamber where n<γ, and in a second volume change process, to carry out at least one second near-adiabatic or polytropic volume change of the working fluid from a first to a second volume change chamber, where n<γ, or where a volume change starts with n<γ and ands near-adiabatic (n≈γ).
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date | Type | Sub-Type |
|---|
International Classification(s)
- 2011 Application Filing Year
- F25B Class
- 616 Applications Filed
- 461 Patents Issued To-Date
- 74.84 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 26, 2025 |
