A novel Stirling engine with an elliptic drive
Abstract
The concept of the Stirling cycle seems quite simple when presented as a cycle involving two constant temperature and two constant volume processes. The reality of machines that have evolved from the Stirling concept is considerably more complicated. Most real machines employ a drive mechanism that approximates a sinusoidal volume variation for each of the cylinders. This results in an overall volume variation that only poorly approximates the constant volume processes postulated in the classic definition of a Stirling cycle. The difficulties of achieving the piston motions necessary to attain the discontinuous motions of the classic cycle are well known and, as a result, the sinusoidal motions are widely accepted as an inevitable compromise. It is noted that free piston Stirling machines are not constrained in the same manner. However, the discussion here focuses on kinematic drive machines. In the current study, a Rider-type engine with an elliptic drive is modeled with the objective of clarifying the potential of a more ideal volume variation. This drive mechanism is the subject of a US Patent filed with Serial Number 08/360,052 on 20 December 1994.
- Authors:
-
- Univ. of Maryland, College Park, MD (United States). Center for Environmental Energy Engineering
- Epoch Engineering Inc., Gaithersburg, MD (United States)
- Publication Date:
- Sponsoring Org.:
- Maryland State Government, Annapolis, MD (United States)
- OSTI Identifier:
- 474377
- Report Number(s):
- CONF-960805-
TRN: IM9723%%270
- Resource Type:
- Conference
- Resource Relation:
- Conference: 31. intersociety energy conversion engineering conference, Washington, DC (United States), 9-14 Aug 1996; Other Information: PBD: 1996; Related Information: Is Part Of Proceedings of the 31. intersociety energy conversion engineering conference. Volume 2: Conversion technologies, electro-chemical technologies, stirling engines, thermal management; Chetty, P.R.K.; Jackson, W.D.; Dicks, E.B. [eds.]; PB: 867 p.
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; GEARS; STIRLING ENGINES; PARAMETRIC ANALYSIS; MATHEMATICAL MODELS; ELLIPTICAL CONFIGURATION; DIAGRAMS
Citation Formats
Fang, H W, Herold, K E, Holland, H M, and Beach, E H. A novel Stirling engine with an elliptic drive. United States: N. p., 1996.
Web.
Fang, H W, Herold, K E, Holland, H M, & Beach, E H. A novel Stirling engine with an elliptic drive. United States.
Fang, H W, Herold, K E, Holland, H M, and Beach, E H. 1996.
"A novel Stirling engine with an elliptic drive". United States.
@article{osti_474377,
title = {A novel Stirling engine with an elliptic drive},
author = {Fang, H W and Herold, K E and Holland, H M and Beach, E H},
abstractNote = {The concept of the Stirling cycle seems quite simple when presented as a cycle involving two constant temperature and two constant volume processes. The reality of machines that have evolved from the Stirling concept is considerably more complicated. Most real machines employ a drive mechanism that approximates a sinusoidal volume variation for each of the cylinders. This results in an overall volume variation that only poorly approximates the constant volume processes postulated in the classic definition of a Stirling cycle. The difficulties of achieving the piston motions necessary to attain the discontinuous motions of the classic cycle are well known and, as a result, the sinusoidal motions are widely accepted as an inevitable compromise. It is noted that free piston Stirling machines are not constrained in the same manner. However, the discussion here focuses on kinematic drive machines. In the current study, a Rider-type engine with an elliptic drive is modeled with the objective of clarifying the potential of a more ideal volume variation. This drive mechanism is the subject of a US Patent filed with Serial Number 08/360,052 on 20 December 1994.},
doi = {},
url = {https://www.osti.gov/biblio/474377},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 31 00:00:00 EST 1996},
month = {Tue Dec 31 00:00:00 EST 1996}
}