Patent US3677027A successfully refreshed from Google Patents.
US3677027A
Expired / Lapsed
US
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Internal combustion heat engine and process
Assignee: American Gas Association Inc
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Filing: 1970-11-23
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Granted: 1972-07-18
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Expires: 1990-11-23
Abstract
Abstract A process for conversion of chemical energy to mechanical energy by heating air within a substantially gastight gas chamber by passage in heat-exchange relation with a heat-regenerative means, within the chamber, substantially continuous burning of an injected combustible fluid fuel during injection thereof resulting in substantial increase in the average temperaturepressure relation of the gas within the gas chamber, expanding said gas chamber by movement of a pressure responsive member, and heating the heat-regenerative means by passage of the combustion product gas in heat-exchange relation with the heat-regenerative means. An internal combustion heat engine having a heatregenerative means within a generally cylindrical, substantially gastight gas chamber defined by a casing, and semi-arcuate oscillatory displacer to displace enclosed gases in heat-exchange relation with the heat-regenerative means, air intake conduit, exhaust conduit, fuel injection means, an ignition means and a pressure responsive member. A gas cooling system wherein a compression means is actuated by movement of the pressure responsive member of the internal combustion heat engine.
Inventors
- 👤 Eric G U Granryd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:15
CPC Classifications
F; F02; F02G; F02G1/00; F02G1/02; F25; F25B; F25B27/00; F02B; F02B1/00; F02B1/02; F02B1/04; F02G2258/00; F02G2258/10
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
111 words
A process for conversion of chemical energy to mechanical energy comprising: passing combustion-supportable gas into a substantially gastight gas chamber, heating said gas by passage in heat-exchange relation with a heat-regenerative means, injecting a combustible fluid fuel into said gas chamber for contact with said heated combustion-supportable gas during said heating, substantially continuous burning of said fuel in contact with said heated combustion-supportable gas during said injecting thereby forming combustion product gas, expanding said gas chamber by movement of a pressure responsive member, heating said heat-regenerative means by passage of said combustion product gas in heat-exchange relation with said heat-regenerative means, and passing said combustion product gas from said gas chamber.
Claim 2
Dependent Claim
111 words
A process for conversion of chemical energy to mechanical energy comprising: passing combustion-supportable gas into a substantially gastight gas chamber, heating said gas by passage in heat-exchange relation with a heat-regenerative means, injecting a combustible fluid fuel into said gas chamber for contact with said heated combustion-supportable gas during said heating, substantially continuous burning of said fuel in contact with said heated combustion-supportable gas during said injecting thereby forming combustion product gas, expanding said gas chamber by movement of a pressure responsive member, heating said heat-regenerative means by passage of said combustion product gas in heat-exchange relation with said heat-regenerative means, and passing said combustion product gas from said gas chamber.
Claim 3
Dependent Claim
22 words
The process of claim 1 wherein said combustible fluid fuel is selected from a class consisting of the liquid or gaseous hydrocarbons.
Claim 4
Dependent Claim
22 words
The process of claim 1 wherein said combustible fluid fuel is selected from the class consisting of methane, ethane, propane and butane.
Claim 5
Dependent Claim
13 words
The process of claim 1 wherein said combustible fluid fuel is natural gas.
Claim 6
Dependent Claim
15 words
The process of claim 1 wherein said combustible fluid fuel is in a gaseous form.
Claim 7
Dependent Claim
15 words
The process of claim 1 wherein said combustible fluid fuel is in a liquid form.
Claim 8
Dependent Claim
157 words
An internal combustion heat engine comprising a casing defining a generally cylindrical gas chamber for confining gas, a heat-regenerative means within said gas chamber extending from said casing toward the center of said chamber and extending substantially the length of said chamber, an oscillating displacer dividing said chamber into a first and second volume and by oscillatory movement displacing said gas from said first volume through said heat-regenerative means into said second volume at a higher average temperature-pressure relationship, and from second volume through said heat-regenerative means into said first volume at a lower average temperature-pressure relationship, an air intake conduit for passage of a combustion-supportable gas into said first volume, an exhaust conduit for passage of combustion product gas from said first volume, fuel injection means for injection of a combustible fluid fuel into said second volume, an ignition means, and a pressure responsive member in said casing permitting expansion and contraction of said gas chamber.
Claim 9
Dependent Claim
157 words
An internal combustion heat engine comprising a casing defining a generally cylindrical gas chamber for confining gas, a heat-regenerative means within said gas chamber extending from said casing toward the center of said chamber and extending substantially the length of said chamber, an oscillating displacer dividing said chamber into a first and second volume and by oscillatory movement displacing said gas from said first volume through said heat-regenerative means into said second volume at a higher average temperature-pressure relationship, and from second volume through said heat-regenerative means into said first volume at a lower average temperature-pressure relationship, an air intake conduit for passage of a combustion-supportable gas into said first volume, an exhaust conduit for passage of combustion product gas from said first volume, fuel injection means for injection of a combustible fluid fuel into said second volume, an ignition means, and a pressure responsive member in said casing permitting expansion and contraction of said gas chamber.
Claim 10
Dependent Claim
24 words
The internal combustion engine of claim 7 wherein said combustible fluid fuel is selected from a class consisting of the liquid or gaseous hydrocarbons.
Claim 11
Dependent Claim
17 words
The internal combustion heat engine of claim 7 wherein said pressure responsive member comprises a flexible membrane.
Claim 12
Dependent Claim
16 words
The internal combustion heat engine of claim 7 wherein said pressure resPonsive member comprises a piston.
Claim 13
Dependent Claim
20 words
The internal combustion engine of claim 7 wherein said displacer oscillates at from about 30 to 600 cycles per minute.
Claim 14
Dependent Claim
21 words
The internal combustion heat engine of claim 7 wherein said displacer oscillates at from about 75 to 300 cycles per minute.
Claim 15
Dependent Claim
192 words
A cooling apparatus comprising an internal combustion heat engine comprising a casing defining a generally cylindrical gas chamber for confining gas, a heat-regenerative means within said gas chamber extending from said casing toward the center of said chamber and extending substantially the length of said chamber, an oscillating displacer dividing said chamber into a first and second volume and by oscillatory movement displacing said gas from said first volume through said heat-regenerative means into said second volume at a higher average temperature-pressure relationship, and from second volume through said heat-regenerative means into said first volume at a lower average temperature-pressure relationship, an air intake conduit for passage of a combustion-supportable gas into said first volume, an exhaust conduit for passage of combustion product gas from said first volume, fuel injection means for injection of a combustible fluid fuel into said second volume, an ignition means, and a pressure responsive member in said casing permitting expansion and contraction of said gas chamber, in combination with a cooling mechanism comprising condenser means, expansion means, evaporation means, compression means and contained refrigerant wherein said compression means is actuated by movement of said pressure responsive member.
Claim 16
Dependent Claim
192 words
A cooling apparatus comprising an internal combustion heat engine comprising a casing defining a generally cylindrical gas chamber for confining gas, a heat-regenerative means within said gas chamber extending from said casing toward the center of said chamber and extending substantially the length of said chamber, an oscillating displacer dividing said chamber into a first and second volume and by oscillatory movement displacing said gas from said first volume through said heat-regenerative means into said second volume at a higher average temperature-pressure relationship, and from second volume through said heat-regenerative means into said first volume at a lower average temperature-pressure relationship, an air intake conduit for passage of a combustion-supportable gas into said first volume, an exhaust conduit for passage of combustion product gas from said first volume, fuel injection means for injection of a combustible fluid fuel into said second volume, an ignition means, and a pressure responsive member in said casing permitting expansion and contraction of said gas chamber, in combination with a cooling mechanism comprising condenser means, expansion means, evaporation means, compression means and contained refrigerant wherein said compression means is actuated by movement of said pressure responsive member.
Claim 17
Dependent Claim
23 words
The cooling apparatus of claim 13 wherein said combustible fluid fuel is selected from the class consisting of the liquid or gaseous hydrocarbons.
Claim 18
Dependent Claim
15 words
The cooling apparatus of claim 13 wherein said pressure responsive member comprises a flexible membrane.
Claim 19
Dependent Claim
14 words
The cooling apparatus of claim 13 wherein said pressure responsive member comprises a piston.
Claim 20
Dependent Claim
19 words
The cooling apparatus of claim 13 wherein said displacer oscillates at from about 30 to 600 cycles per minute.
Claim 21
Dependent Claim
19 words
The cooling apparatus of claim 13 wherein said displacer oscillates at from about 75 to 300 cycles per minute.
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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |