Patent US4513568A successfully refreshed from Google Patents.
US4513568A
Expired / Lapsed
US
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Method for the transformation of thermal energy into mechanical energy by means of a combustion engine as well as this new engine
Assignee: Individual
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Filing: 1982-11-18
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Granted: 1985-04-30
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Expires: 2002-11-18
Abstract
Abstract An energy transformation cycle in which the number of strokes is higher than four, at least four of which are: a. the compression of air contained in a variable volume chamber, into a preheating chamber; b. the expansion of the variable volume chamber through the expansion of hot air contained in the preheating chamber; c. the compression of the expanded hot air contained in the variable volume chamber into a combustion chamber where fuel is introduced to cause the combustion of the mixture; and d. the expansion of the variable volume chamber through the expansion in the chamber of high temperature and high pressure combustion gases from the combustion chamber. The engine comprises a body (23) inside which is a movable member (25) defining a variable volume chamber (29). The body (23) comprises an admission duct (35) and an exhaust duct (34). This engine comprises further an air preheating chamber (41) the inlet and outlet of which communicate, through a distribution member (36), alternately with the variable volume chamber (29). This engine comprises further a combustion chamber (44), provided with a fuel distributor, the inlet and outlet of which communicate, through the distribution member (36), alternately with the variable volume chamber (29).
Inventors
- 👤 Roger Bajulaz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:21
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/02; F02B75/021; F01; F01L; F01L7/00; F01L7/02; F01L7/021; F01L7/025; F01L7/029; F02G; F02G3/00; F02G3/02; F02B1/00; F02B1/02; F02B1/04; F02B2075/022; F02B2075/027
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
168 words
Method for the transformation of thermal energy into mechanical energy by means of a combustion engine comprising a body provided with admission and exhaust ducts, as well as at least one member movable within said body defining at least one chamber having a variable volume, comprising establishing a cycle of more than four strokes, at least four of these strokes comprising: a. compressing air contained in the variable volume chamber, through a reduction of the volume of said chamber, into a preheating chamber; b. expanding the variable volume chamber through the expansion of the hot air contained in the preheating chamber; c. compressing, through a reduction of the volume of the variable volume chamber, the hot expanded air in said variable volume chamber, into a combustion chamber in which fuel is introduced and causing the combustion of the mixture thus obtained; and d. expanding the variable volume chamber through the expansion into said chamber of the combustion gases at high temperature and high pressure from the combustion chamber.
Claim 2
Dependent Claim
168 words
Method for the transformation of thermal energy into mechanical energy by means of a combustion engine comprising a body provided with admission and exhaust ducts, as well as at least one member movable within said body defining at least one chamber having a variable volume, comprising establishing a cycle of more than four strokes, at least four of these strokes comprising: a. compressing air contained in the variable volume chamber, through a reduction of the volume of said chamber, into a preheating chamber; b. expanding the variable volume chamber through the expansion of the hot air contained in the preheating chamber; c. compressing, through a reduction of the volume of the variable volume chamber, the hot expanded air in said variable volume chamber, into a combustion chamber in which fuel is introduced and causing the combustion of the mixture thus obtained; and d. expanding the variable volume chamber through the expansion into said chamber of the combustion gases at high temperature and high pressure from the combustion chamber.
Claim 3
Dependent Claim
70 words
A method according to claim 1, in which the complete cycle comprises six strokes, the two additional strokes being: e. the introduction of air, through the admission duct, into the variable volume chamber during an increase of volume of said chamber; and f. the expulsion, through the exhaust duct, by means of a reduction of volume of the variable volume chamber, of the expanded combustion gases contained in said chamber.
Claim 4
Dependent Claim
25 words
A method according to claim 2, in which the complete cycle comprises two active strokes (b, d) and four inactive strokes (a, c, e, f).
Claim 5
Dependent Claim
24 words
A method according to claim 3, in which the succession of the strokes in a complete cycle is: e, a, b, c, d, f.
Claim 6
Dependent Claim
24 words
A method according to claim 3, in which the succession of the strokes in a complete cycle is: e, a, d, f, b, c.
Claim 7
Dependent Claim
28 words
A method according to claim 1, and heating the compressed air contained in the preheating chamber by heat exchange with the combustion gas contained in the combustion chamber.
Claim 8
Dependent Claim
18 words
A method according to claim 1, and limiting the pressure in the preheating chamber to a given value.
Claim 9
Dependent Claim
33 words
A method according to claim 7, in which when the pressure in the preheating chamber rises over a limit value a part of the air contained therein is discharged into the admission duct.
Claim 10
Dependent Claim
32 words
A method as claimed in claim 7, in which the given value of the pressure in the preheating chamber is controlled as a function of the pressure existing in the combustion chamber.
Claim 11
Dependent Claim
29 words
A method according to claim 1, in which the air contained in the preheating chamber circulates in the opposite direction to the combustion gas contained in the combustion chamber.
Claim 12
Dependent Claim
21 words
A method according to claim 1, in which the circulation of the fluids inside the preheating and combustion chambers is unidirectional.
Claim 13
Dependent Claim
108 words
Combustion engine comprising a body, at least one movable member defining in said body at least one chamber, the volume of which varies as a function of the relative position of this movable member with respect to the body; the body having an admission duct and an exhaust duct, a preheating chamber for air the inlet and the outlet of which are adapted to communicate by means of a distribution member alternately with the variable volume chamber, and a combustion chamber having a fuel distributor, the inlet and the outlet of said combustion chamber being adapted to communicate through said distribution member alternately with said variable volume chamber.
Claim 14
Dependent Claim
108 words
Combustion engine comprising a body, at least one movable member defining in said body at least one chamber, the volume of which varies as a function of the relative position of this movable member with respect to the body; the body having an admission duct and an exhaust duct, a preheating chamber for air the inlet and the outlet of which are adapted to communicate by means of a distribution member alternately with the variable volume chamber, and a combustion chamber having a fuel distributor, the inlet and the outlet of said combustion chamber being adapted to communicate through said distribution member alternately with said variable volume chamber.
Claim 15
Dependent Claim
19 words
An engine according to claim 12, in which the preheating chamber and the combustion chamber constitute a heat exchanger.
Claim 16
Dependent Claim
25 words
An engine according to claim 12, in which the distribution member places the variable volume chamber alternately in communication with the admission and exhaust ducts.
Claim 17
Dependent Claim
35 words
An engine according to claim 14, which comprises a passage connecting the preheating chamber to the admission duct, in which passage a pressure regulating element is mounted to control the pressure inside the preheating chamber.
Claim 18
Dependent Claim
24 words
An engine according to claim 15, in which said pressure regulating element is controlled as a function of the pressure inside the combustion chamber.
Claim 19
Dependent Claim
18 words
An engine according to claim 12, in which the variable volume chamber rotates with respect to the body.
Claim 20
Dependent Claim
60 words
An engine according to claim 17, in which the preheating and combustion chambers are located in the body of the engine; the distribution member is a ring provided with at least one aperture in permanent communication with the variable volume chamber; and the movable member is at least one piston connected to the distributing ring and to a motor shaft.
Claim 21
Dependent Claim
57 words
An engine as claimed in claim 17, in which the movable member is a piston linearly reciprocating with respect to the body; the distribution member is an aperture, provided in the body and in permanent communcation with the variable volume chamber; and the preheating and combustion chamber are located in a rotor rotatively mounted in the body.
Claim 22
Dependent Claim
31 words
An engine according to claim 19, in which the rotor and the motor shaft are connected by a linkage such that the motor shaft revolves three times faster than the rotor.
Claim 23
Dependent Claim
47 words
An engine according to claim 19, in which the rotor comprises further admission and exhaust ducts one end of which cooperates with the aperture whereas the other end opens onto the lateral faces of the rotor and cooperates with the admission and exhaust ducts of the body.
Claim 24
Dependent Claim
21 words
An engine according to claim 21, in which the axis of rotation of the rotor is parallel to the motor shaft.
Claim 25
Dependent Claim
21 words
An engine according to claim 21, in which the axis of rotation of the rotor is perpendicular to the motor shaft.
Claim 26
Dependent Claim
16 words
An engine according to claim 21, in which one rotor cooperates with two variable volume chambers.
Claim 27
Dependent Claim
35 words
An engine according to claim 12, in which the volume of the preheating chamber and of the combustion chamber is greater than the difference between the maximum and minimum volumes of the variable volume chamber.
Claim 28
Dependent Claim
29 words
An engine according to claim 12, in which the inlet and the outlet of each of the preheating and combustion chambers are displaced by approximately 180° from each other.
Claim 29
Dependent Claim
36 words
An engine according to claim 12, in which the volume of one of the preheating chamber and the combustion chamber is greater than the difference between the maximum and minimum volumes of the variable volume chamber.
References Cited (Backward Citations)
CA448649A
Cited
US4369623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-29 | 1988-10-29 | 1989-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-29 | 1992-10-29 | 1993-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-29 | 1996-10-29 | 1997-04-30 | $7700.00 | Window Closed / Lapsed |