Patent US2986252A successfully refreshed from Google Patents.
Patent US4033299A successfully refreshed from Google Patents.
US4033299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary engine
Assignee: Individual
•
Filing: 1975-01-22
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Granted: 1977-07-05
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Expires: 1995-01-22
Abstract
Abstract This rotary engine performs the same four phases as any other piston and rotary engine. Yet, unlike other engines this one has no crankshaft. It consists of a circular housing in which a circular rotor revolves slightly off center in relation to its housing. The rotor carries through its cavity vanes (or blades) that are kept continuously close to the housing by the centrifugal force as the rotor turns. The vanes never touch the housing, they are kept at a safe distance by a ring which is guided by a ball bearing. To make the contact gas-tight each vane is tipped with an inset metal strip. The rotor with its vanes rotating in its housing develops two expanding-contracting chambers, one inside it and the other peripheral to the housing. The inside chamber is to intake the mixture and pump it into the peripheral or combustion chamber, this will decrease in volume compressing the mixture, as the rotor edges by the spark plug the fuel-air mixture is ignited, the exploding gas pushes the rotor in its circular motion. All the while the inside chamber continues its intake of fresh mixture and pumps it into the combustion chamber. The cycle is then repeated.
Inventors
- 👤 Sergio C. Manzoni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:02
CPC Classifications
F; F01; F01C; F01C11/00; F01C1/00; F01C1/30; F01C1/34; F01C1/356; F01C1/3566; F02; F02B; F02B53/00; F02B53/04; F02B53/08; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
255 words
A rotary internal combustion engine comprising in combination: a stationary housing comprising an inner and outer concentric cylinder, assembled in between walls or end plates forming an annular chamber, an annular rotor eccentrically located into said annular chamber forming the inner and outer working chambers, a shaft secured to the rotor on one side and extending through the housing and being fastened in an end plate, a flange embodied to the rotor on the side opposite the shaft, said rotor including radially disposed and movable vanes for continuous engagement with the interior of the casing during rotation of the rotor, said rotor being concentrically mounted on said shaft and eccentrically oriented in relation to the casing for providing expanding and contracting chambers between adjacent vanes during the rotation of the rotor, means interlocking the vanes for restraining them radially inwardly and outwardly against the interior of the casing, said casing including means admitting a compressible and combustible mixture into the inner chambers, passage means for transferring the mixture from the inner chambers to the outer working chambers for compression and ignition by rotation of the rotor therein, passage means communicating the outer working chambers with the exterior of the casing after combustion, said means interlocking the vanes including an annular ring journalled through the vanes, said annular ring being concentric with the center of the casing, rotatable means journalled on the inner cylinder of the casing including a bearing with connecting joints securing said annular ring, thereby maintaining the vanes under control at all times.
Claim 2
Dependent Claim
255 words
A rotary internal combustion engine comprising in combination: a stationary housing comprising an inner and outer concentric cylinder, assembled in between walls or end plates forming an annular chamber, an annular rotor eccentrically located into said annular chamber forming the inner and outer working chambers, a shaft secured to the rotor on one side and extending through the housing and being fastened in an end plate, a flange embodied to the rotor on the side opposite the shaft, said rotor including radially disposed and movable vanes for continuous engagement with the interior of the casing during rotation of the rotor, said rotor being concentrically mounted on said shaft and eccentrically oriented in relation to the casing for providing expanding and contracting chambers between adjacent vanes during the rotation of the rotor, means interlocking the vanes for restraining them radially inwardly and outwardly against the interior of the casing, said casing including means admitting a compressible and combustible mixture into the inner chambers, passage means for transferring the mixture from the inner chambers to the outer working chambers for compression and ignition by rotation of the rotor therein, passage means communicating the outer working chambers with the exterior of the casing after combustion, said means interlocking the vanes including an annular ring journalled through the vanes, said annular ring being concentric with the center of the casing, rotatable means journalled on the inner cylinder of the casing including a bearing with connecting joints securing said annular ring, thereby maintaining the vanes under control at all times.
Claim 3
Dependent Claim
109 words
A rotary internal combustion engine as set forth in claim 1: wherein said flange comprises an annular extension of the rotor and includes means for transferring the mixture from the inner chambers to the outer working chambers, said means including passageways extending through the annular extension and communicating with both sides thereof, said annular extension also including an annular recess at the inner diameter to receive a rotatable means which is eccentric with the center of the casing and concentric with the center of the rotor, said rotatable means journalled on the internal portion of the housing in combination with said annular extension imparting added support to the rotor.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-04 | 1981-01-03 | 1981-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-04 | 1985-01-03 | 1985-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-04 | 1989-01-03 | 1989-07-05 | $7700.00 | Window Closed / Lapsed |