US3645239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary piston machine
Assignee: Individual
•
Filing: 1969-10-24
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Granted: 1972-02-29
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Expires: 1989-10-24
Abstract
Abstract My present invention relates to rotary machines and, more particularly, to a rotary internal-combustion engine having a rotating annular cylinder block within which are housed a pair of double-faced arcuate pistons rotating relatively therewith.
Inventors
- 👤 Arnulfo Q Cena
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:07
CPC Classifications
F; F02; F02B; F02B53/00; F01; F01C; F01C1/00; F01C1/02; F01C1/063; F01C1/07; F02B57/00; F02B1/00; F02B1/02; F02B1/04; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B2730/00; F02B2730/03; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
181 words
A rotary internal combustion engine comprising, in combination, support means; a first shaft rotatably mounted on said support means; an annular cylinder bloCk coaxially surrounding said first shaft and connected thereto for rotation therewith, said annular cylinder block having a pair of diametrically opposite walls dividing the interior of said annular cylinder block into two compartments; a pair of doublefaced arcuate pistons respectively located in said compartments and each forming between one face thereof and one of said dividing walls a first chamber and between the other face thereof and the other dividing wall a second chamber; a hollow second shaft journaled on said first shaft, said second shaft being connected to said pistons for rotation therewith; inlet and outlet ports communicating with said chambers; means for supplying a metered fuel charge through said inlet ports into said chambers; means communicating at least with said first chamber for igniting a fuel charge compressed therein to thereby rotate said arcuate pistons relative to said annular cylinder block; and means controlling the relative rotation of said annular cylinder block and said arcuate pistons.
Claim 2
Dependent Claim
181 words
A rotary internal combustion engine comprising, in combination, support means; a first shaft rotatably mounted on said support means; an annular cylinder bloCk coaxially surrounding said first shaft and connected thereto for rotation therewith, said annular cylinder block having a pair of diametrically opposite walls dividing the interior of said annular cylinder block into two compartments; a pair of doublefaced arcuate pistons respectively located in said compartments and each forming between one face thereof and one of said dividing walls a first chamber and between the other face thereof and the other dividing wall a second chamber; a hollow second shaft journaled on said first shaft, said second shaft being connected to said pistons for rotation therewith; inlet and outlet ports communicating with said chambers; means for supplying a metered fuel charge through said inlet ports into said chambers; means communicating at least with said first chamber for igniting a fuel charge compressed therein to thereby rotate said arcuate pistons relative to said annular cylinder block; and means controlling the relative rotation of said annular cylinder block and said arcuate pistons.
Claim 3
Dependent Claim
124 words
An engine as defined in claim 1, wherein each of said first chambers forms a combustion chamber and each of said second chambers forms a pumping chamber, and including an enclosed annular space coaxial with said annular cylinder block and rotary valve means forming part of said first shaft for connecting and disconnecting said means for supplying a metered fuel charge with said annular space, said inlet ports comprising a first port for each of said pumping chambers and providing communication between said annular spade and the respective pumping chamber, and a second port for each combustion chamber and providing communication between said annular space and the respective combustion chamber, and said outlet ports comprising an exhaust port for each of said combustion chamber.
Claim 4
Dependent Claim
76 words
An engine as defined in claim 1, wherein each of said chambers constitutes a combustion chamber, one inlet port, one outlet port and a means for igniting a compressed fuel charge being provided for each of said chambers, and including passage means providing communication between said inlet ports and said means for supplying a metered fuel charge to said chambers, valve means in each of said ports, and stationary cam means for controlling said valve means.
Claim 5
Dependent Claim
86 words
An engine as defined in claim 3, wherein said inlet and outlet ports are located closely adjacent said dividing walls, each of said valve means comprising a valve seat at the respective port, a valve member reciprocable relative to said seat between an open and a closed position, a valve stem connected to said valve member, and a guided plunger between each valve stem and said cam means for reciprocating said valve member during rotation of said annular cylinder block relative to said stationary cam means.
Claim 6
Dependent Claim
130 words
An engine as defined in claim 1, wherein said controlling means comprise a sun gear coaxial with said first shaft and fixedly mounted on said support means, a pair of diametrically opposed planet gears meshing with said sun gear, a first pair of radial arms fixed to and projecting in opposite direction from said first shaft, a second pair of radial arms fixed to and projecting in opposite direction from said hollow second shaft, a crank pin journaled at the free end of each of said first pair of arms and each carrying one of said planet gears, a crank arm fixed to each crank pin, and a pair of connecting rods each connecting a respective crank arm with the free end of one of said second pair of arms.
Claim 7
Dependent Claim
187 words
An engine as defined in claim 1 and including a pair of said cylinder blocks arranged coaxially and axially spaced from each other and both connected to said first shaft for rotation therewith, each of said annular cylinder blocks having a pair of diametrically opposite walls dividing each of said annular cylinder blocks into two compartments, a pair of said double-faced arcuate pistons being respectively located in said compartments of each of said annular cylinder blocks, each of said pistons forming Between one face thereof and one of said dividing walls a combustion chamber and between the other face thereof and the other dividing wall a pumping chamber, said igniting means communicating with said combustion chambers, a pair of axially extending connecting pins respectively connecting the pair of arcuate pistons in one of said annular cylinder blocks with the pair of arcuate pistons in the other of said annular cylinder blocks, said hollow second shaft being connected to said pair of pins by a pair of axially spaced and radially extending arms, and said control means being in part located between said pair of annular cylinder blocks.
Claim 8
Dependent Claim
140 words
An engine as defined in claim 6, wherein said control means comprise a pair of coaxial and axially spaced sun gears fixedly mounted on said support means, a pair of diametrically opposite planet gears for each sun gear, two pairs of opposite extending radial connecting arms respectively connecting said pair of annular cylinder blocks with said first shaft, two cranks each having a pair of oppositely projecting first crank pins journaled in said connecting arms, a pair of crank arms fixed at one end thereof to the inner ends of said crank pins and connected to each other at the other ends thereof by a further crank pin, said planet gears being respectively fixed to the outer ends of said first crank pins, and a pair of connecting rods connecting the respective further crank pin with the respective connecting pins.
Claim 9
Dependent Claim
20 words
An engine as defined in claim 1, wherein said support means comprises a casing enclosing at least said control means.
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) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |