Patent US4382362A successfully refreshed from Google Patents.
US4382362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
External combustion engine
Assignee: Individual
•
Filing: 1980-08-25
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Granted: 1983-05-10
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Expires: 2000-08-25
Abstract
Abstract A Stirling cycle engine having a reciprocating power piston and a reciprocating displacer operating in cylinders having ports covered and uncovered by the motion of the piston and displacer. Ports of the power piston cylinder are connected to ports of the displacer cylinder through cooling means arranged to cool the working fluid. Various drive linkages are described which enable the motions of the power piston and the displacer to closely conform to the ideal Stirling cycle.
Inventors
- 👤 Antonius M. Mortel
- 👤 Peter J. Mortel
- 👤 Henry F. Mortel
- 👤 Anthony F. Mortel
- 👤 Frederick H. Mortel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:51
CPC Classifications
F; F02; F02G; F02G1/00; F02G1/04; F02G1/043; F02G2244/00; F02G2270/00; F02G2270/20; F02G2270/45; F02G2270/85
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
113 words
A Stirling cycle engine having at least one power piston reciprocating in a cylinder and at least one displacer piston reciprocating in a cylinder, heating means located at or adjacent the upper end of the power cylinder, a first conduit connecting the upper ends of the power cylinder and the displacer cylinder, and wherein the walls of each cylinder are provided with ports which are uncovered by movement of the piston therein toward the bottom end of the piston stroke, the ports of the power piston cylinder being connected to the ports of the displacer cylinder by a second conduit incorporating cooling means arranged to cool the working fluid passing through said conduit.
Claim 2
Dependent Claim
113 words
A Stirling cycle engine having at least one power piston reciprocating in a cylinder and at least one displacer piston reciprocating in a cylinder, heating means located at or adjacent the upper end of the power cylinder, a first conduit connecting the upper ends of the power cylinder and the displacer cylinder, and wherein the walls of each cylinder are provided with ports which are uncovered by movement of the piston therein toward the bottom end of the piston stroke, the ports of the power piston cylinder being connected to the ports of the displacer cylinder by a second conduit incorporating cooling means arranged to cool the working fluid passing through said conduit.
Claim 3
Dependent Claim
49 words
A Stirling cycle engine as claimed in claim 1 wherein the first conduit incorporates a regenerator adjacent the power cylinder to take heat from working fluid passing out of said power cylinder and to preheat working fluid passing into said power cylinder, and a cooler adjacent the displacer cylinder.
Claim 4
Dependent Claim
24 words
A Stirling cycle engine as claimed in either claim 1 or claim 2 wherein said cooling means in said second conduit comprise a radiator.
Claim 5
Dependent Claim
45 words
A Stirling cycle engine as claimed in claim 1 wherein said first conduit is connected to said displacer cylinder by way of ports in the cylinder wall which are uncovered by the displacer piston at a point just below the top of the piston stroke.
Claim 6
Dependent Claim
63 words
A Stirling cycle engine as claimed in claim 4 wherein a one way valve is provided in the upper end of the displacer cylinder arranged to allow working fluid to pass from the displacer cylinder through the one way valve to the first conduit at the upper end of the displacer piston stroke but to prevent fluid flow therethrough in the reverse direction.
Claim 7
Dependent Claim
30 words
A Stirling cycle engine as claimed in claim 1 wherein the displacer piston is held in the upper part of the displacer cylinder while the power piston is displaced downwardly.
Claim 8
Dependent Claim
101 words
A Stirling cycle engine as claimed in claim 6 wherein the reciprocating axes of the power piston and the displacer are arranged in a V-configuration on a common crank-case incorporating a first crank-shaft and a second parallel crank-shaft geared to rotate at twice the speed of said first crank-shaft, said piston being connected to said first crank-shaft by a connecting rod to an off-set crank thereon and said displacer being connected to an intermediate point on a yoke having one end connected to a crank on said first crank-shaft and the other end connected to a crank on said second crank-shaft.
Claim 9
Dependent Claim
32 words
A Stirling cycle engine as claimed in claim 7 wherein said intermediate point is one-third of the length of said yoke from the end connected to the crank on said first crank-shaft.
Claim 10
Dependent Claim
21 words
A Stirling cycle engine as claimed in claim 6 wherein said power piston and said displacer are reciprocated by cam means.
Claim 11
Dependent Claim
90 words
A Stirling cycle engine as claimed in claim 9 wherein a plurality of power cylinders are provided having parallel reciprocating axes arranged on a first pitch circle and a plurality of displacer cylinders are provided having parallel reciprocating axes arranged on a second pitch circle concentric with said first pitch circle, and wherein said cam means comprise a cam cylinder having an axis of rotation concentric with said pitch circles and incorporating cam tracks on the inner and outer peripheral faces thereof arranged to operate said power and displacer pistons.
Claim 12
Dependent Claim
63 words
A Stirling cycle engine as claimed in claim 10 wherein said power pistons rotate said cam cylinder via connecting rods coupled to cam followers engaged with a cam track on the outside periphery of said cam cylinder, and said displacer pistons are operated by connecting rods coupled to cam followers engaged with a cam track on the inside periphery of said cam cylinder.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-09 | 1986-11-08 | 1987-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-09 | 1990-11-08 | 1991-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-09 | 1994-11-08 | 1995-05-10 | $7700.00 | Window Closed / Lapsed |