US3811271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion engine apparatus having compression cylinders and power cylinders
Assignee: Individual
•
Filing: 1973-09-20
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Granted: 1974-05-21
•
Expires: 1993-09-20
Abstract
Abstract External combustion engine apparatus is disclosed which includes compression cylinders for compressing a fuel-air mixture from a carburetor and separate power cylinders which receive combustion gases under relatively high pressure and derive power therefrom. Between the compression cylinders and the power cylinders are combustion chambers, which receive the compressed fuel air mixture and in which ignition and combustion takes place, and a pressure accumulator which receives the combusted gases from the combustion chambers. From the pressure accumulator the gases flow into the power cylinders.
Inventors
- 👤 E Sprain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:35
CPC Classifications
F; F02; F02G; F02G3/00; F02G3/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
175 words
External combustion engine apparatus, comprising, in combination: compression cylinder means for receiving and compressing a charge of fuel and air; combustion chamber means adjacent the compression cylinder means for receiving a compressed charge of fuel and air from the compression cylinder means; means for igniting and combusting the compressed charge of fuel anD air in the combustion chamber means to provide a quantity of pressurized gases; pressure accumulator means for receiving and storing the quantity of pressurized gases from the combustion chamber means; first valve means for controlling the flow of pressurized gases between the combustion chamber means and the pressure accumulator means; power cylinder means for receiving the pressurized gases from the pressure accumulator means; second valve means for controlling the flow of pressurized gases from the pressure accumulator means to the power cylinder means; and heated grid means in the pressure accumulator means through which the pressurized gases flow between the pressure accumulator means and the power cylinder means for providing further ignition and combustion of fuel and air in the pressurized gases.
Claim 2
Dependent Claim
175 words
External combustion engine apparatus, comprising, in combination: compression cylinder means for receiving and compressing a charge of fuel and air; combustion chamber means adjacent the compression cylinder means for receiving a compressed charge of fuel and air from the compression cylinder means; means for igniting and combusting the compressed charge of fuel anD air in the combustion chamber means to provide a quantity of pressurized gases; pressure accumulator means for receiving and storing the quantity of pressurized gases from the combustion chamber means; first valve means for controlling the flow of pressurized gases between the combustion chamber means and the pressure accumulator means; power cylinder means for receiving the pressurized gases from the pressure accumulator means; second valve means for controlling the flow of pressurized gases from the pressure accumulator means to the power cylinder means; and heated grid means in the pressure accumulator means through which the pressurized gases flow between the pressure accumulator means and the power cylinder means for providing further ignition and combustion of fuel and air in the pressurized gases.
Claim 3
Dependent Claim
39 words
The apparatus of claim 1 in which the first valve means includes a spring loaded poppet valve actuable at a predetermined pressure to provide a flow of pressurized gases from the combustion chamber means to the pressure accumulator means.
Claim 4
Dependent Claim
25 words
The apparatus of claim 2 in which the grid means includes a hot plug for providing a source of electrical power for heating the grid.
Claim 5
Dependent Claim
33 words
The apparatus of claim 3 in which the second valve means includes a pair of valves for controlling the flow of pressurized gases between the pressure accumulator means and the power cylinder means.
Claim 6
Dependent Claim
24 words
The apparatus of claim 4 in which the power cylinder means includes third valve means for admitting atmospheric pressure to the power cylinder means.
Claim 7
Dependent Claim
20 words
the apparatus of claim 5 in which the compression cylinder means and the power cylinder means include a common crankshaft.
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) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |