Patent US2430348A successfully refreshed from Google Patents.
US3909162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toroidal chamber rotating piston machine
Assignee: Individual
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Filing: 1973-10-11
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Granted: 1975-09-30
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Expires: 1993-10-11
Abstract
Abstract Engine (or pump) having a toroidal chamber defined by complementary chamber members, at least one of which is rotatable and each of which carries a piston projecting into the toroidal space and sweeping the surface of the other member. Both chamber members may have pistons which oscillate oppositely or which rotate intermittently in the same direction as ''''following pistons,'''' the oscillatory or intermittent rotary movement being converted to continuous rotary movement of an output shaft. Central intake and exhaust passages are employed and different valve and ''''valveless'''' embodiments are disclosed. A closed cycle (reheating) engine is also disclosed.
Inventors
- 👤 Ata Nutku
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:49
CPC Classifications
F; F01; F01C; F01C21/00; F01C21/18; F01C1/00; F01C1/02; F01C1/063; F01C1/077
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
119 words
Apparatus of the type described, comprising a pair of complementary inner and outer chamber members of smoothly curved arcuate cross-section defining a toroidal chamber therebetween of circular or oval cross-section, said outer member being unitary and substantially continuously inwardly concave relative to the axis of said chamber and said inner member being unitary and substantially continuously outwardly concave relative to said axis, mounting means for supporting the chamber members, at least one of said members being supported for turning movement with respect to said mounting means about said axis of said toroidal chamber and having a piston rigidly fixed thereto and projecting therefrom into said chamber with a surface arranged to sweep a mating surface of the other member.
Claim 2
Dependent Claim
119 words
Apparatus of the type described, comprising a pair of complementary inner and outer chamber members of smoothly curved arcuate cross-section defining a toroidal chamber therebetween of circular or oval cross-section, said outer member being unitary and substantially continuously inwardly concave relative to the axis of said chamber and said inner member being unitary and substantially continuously outwardly concave relative to said axis, mounting means for supporting the chamber members, at least one of said members being supported for turning movement with respect to said mounting means about said axis of said toroidal chamber and having a piston rigidly fixed thereto and projecting therefrom into said chamber with a surface arranged to sweep a mating surface of the other member.
Claim 3
Dependent Claim
11 words
Apparatus in accordance with claim 1, wherein said piston is sectoral.
Claim 4
Dependent Claim
58 words
Apparatus in accordance with claim 1, wherein the other of said members has a piston rigidly fixed thereto and projecting therefrom into said space with a surface thereof arranged to sweep a mating surface of said one member, and wherein both of said members are supported for turning movement with respect to said mounting means about said axis.
Claim 5
Dependent Claim
29 words
Apparatus in accordance with claim 1, wherein a tube extends centrally of the toroidal chamber, said apparatus further comprising means for establishing communication between said tube and said chamber.
Claim 6
Dependent Claim
35 words
Apparatus in accordance with claim 1, further comprising means defining intake and exhaust passages centrally of said chamber, and means for establishing communication between said passages and said chamber at opposite sides of said piston.
Claim 7
Dependent Claim
58 words
Apparatus in accordance with claim 5, said inner member being mounted for turning movement, said passage-defining means comprising a fixed tube extending centrally of said chamber along said axis and having a transverse partition dividing said tube into said intake passage and said exhaust passage, said communication-establishing means comprising mating ports in said tube and said inner member.
Claim 8
Dependent Claim
43 words
Apparatus in accordance with claim 5, both said members being mounted for turning movement, said communication-establishing means comprising mating ports in said tube and said inner member and mating ports in that member and the other member connecting with passages through the latter.
Claim 9
Dependent Claim
66 words
Apparatus in accordance with claim 5, said inner member being mounted for turning movement, said passage-defining means comprising a central bore in said inner member divided by a transverse partition of said inner member, said communication-establishing means comprising passages leading from said bore to said chamber and cylindrical valve means coaxial with said chamber and movable in said bore for opening and closing the last-mentioned passages.
Claim 10
Dependent Claim
13 words
Apparatus in accordance with claim 8, said valve means comprising sliding ring valves.
Claim 11
Dependent Claim
56 words
Apparatus in accordance with claim 5, said inner member being mounted for turning movement, said passage-defining means comprising a fixed tube extending centrally of said chamber along said axis and divided by a transverse partition, said communication-establishing means comprising mating ports in said tube and said inner member and valve means embedded within the last-mentioned member.
Claim 12
Dependent Claim
13 words
Apparatus in accordance with claim 10, wherein said valve means comprises poppet valves.
Claim 13
Dependent Claim
12 words
Apparatus in accordance with claim 10, wherein said valves are electrically actuated.
Claim 14
Dependent Claim
37 words
Apparatus in accordance with claim 1, the other of said members also having a piston rigidly fixed thereto and projecting therefrom into said chamber with a surface arranged to sweep a mating surface of said one member.
Claim 15
Dependent Claim
16 words
Apparatus in accordance with claim 13, further comprising means for oscillating said pistons in opposite directions.
Claim 16
Dependent Claim
28 words
Apparatus in accordance with claim 14, further comprising an output shaft, and means for converting the oscillatory movement of said pistons to rotary movement of said output shaft.
Claim 17
Dependent Claim
43 words
Apparatus in accordance with claim 15, further comprising means defining intake and exhaust passages centrally of said chamber, rotary valve means for periodically providing communication between said passages and said chamber, and means for driving said valve means synchronously with said output shaft.
Claim 18
Dependent Claim
18 words
Apparatus in accordance with claim 13, further comprising means for rotating said pistons alternately in the same direction.
Claim 19
Dependent Claim
30 words
Apparatus in accordance with claim 17, further comprising an output shaft, and means for converting the alternate rotary movement of said pistons to continuous rotary movement of said output shaft.
Claim 20
Dependent Claim
17 words
Apparatus in accordance with claim 18, said movement-converting means comprising one-way couplings driven alternately by said members.
Claim 21
Dependent Claim
21 words
Apparatus in accordance with claim 18, wherein said movement-converting means comprises means for coupling said members to said output shaft alternately.
Claim 22
Dependent Claim
15 words
Apparatus in accordance with claim 18, further comprising means for holding said members stationary alternately.
Claim 23
Dependent Claim
51 words
Apparatus in accordance with claim 21, said holding means comprising a worm wheel fixed to each of said members and a worm gear meshing with each worm wheel, respectively, and having means for driving the same synchronously with said output shaft and means for decoupling the same from said output shaft.
Claim 24
Dependent Claim
20 words
Apparatus in accordance with claim 22, said decoupling means comprising a clutch and said driving means comprising a gear train.
Claim 25
Dependent Claim
13 words
Apparatus in accordance with claim 21, said holding means comprising an electromagnetic coupling.
Claim 26
Dependent Claim
130 words
Apparatus of the type described, comprising a pair of complementary inner and outer chamber members of smoothly, curved arcuate cross-section defining a toroidal chamber therebetween, said outer member being unitary and substantially continuously inwardly concave relative to the axis of said chamber and said inner member being unitary, and substantially continuously outwardly concave relative to said axis, means for mounting each of said members for turning moVement about the axis of said chamber, each of said members having a piston projecting therefrom into said chamber toward the other member with each piston being provided with a surface arranged to sweep a mating surface of the other member, means defining intake and exhaust passages, and means for providing communication between said passages and said chamber at opposite sides of said pistons.
Claim 27
Dependent Claim
130 words
Apparatus of the type described, comprising a pair of complementary inner and outer chamber members of smoothly, curved arcuate cross-section defining a toroidal chamber therebetween, said outer member being unitary and substantially continuously inwardly concave relative to the axis of said chamber and said inner member being unitary, and substantially continuously outwardly concave relative to said axis, means for mounting each of said members for turning moVement about the axis of said chamber, each of said members having a piston projecting therefrom into said chamber toward the other member with each piston being provided with a surface arranged to sweep a mating surface of the other member, means defining intake and exhaust passages, and means for providing communication between said passages and said chamber at opposite sides of said pistons.
Claim 28
Dependent Claim
42 words
Apparatus in accordance with claim 25, further comprising means for causing said members to rotate alternately in the same direction, an output shaft, and means for converting the alternate rotary movement of said members to continuous rotary movement of said output shaft.
Claim 29
Dependent Claim
37 words
Apparatus in accordance with claim 25, wherein each of said members has a semicircular cross-section and each of said pistons has a circular cross-section and is provided with rings sweeping the mating surface of the other member.
Claim 30
Dependent Claim
89 words
Apparatus in accordance with claim 25, wherein said means defining intake and exhaust passages comprises a tube extending along the axis of said chamber and wherein said means providing communication comprises cooperating ports in the inner member and in said passages for periodically establishing communication between said passages and said chamber at opposite sides of the piston of the inner member and cooperating ports in the outer member and the inner member for periodically establishing communication between said passages and opposite sides of the piston of the outer member.
Claim 31
Dependent Claim
32 words
Apparatus in accordance with claim 25, said passage-defining means comprising a tube extending centrally of said chamber along the axis thereof, there being mating ports in said tube and said inner member.
Claim 32
Dependent Claim
28 words
Apparatus in accordance with claim 25, said passage-defining means comprising a tube extending centrally of said chamber and having a transverse partition separating said intake and exhaust passages.
Claim 33
Dependent Claim
33 words
Apparatus in accordance with claim 30, said communication-providing means comprising sliding valve means at opposite sides of said partition, and means for driving said valve means synchronously with the movement of said members.
Claim 34
Dependent Claim
32 words
Apparatus in accordance with claim 30, said communication-providing means comprising valve means at opposite sides of said partition, and means for driving said valve means synchronously with the movement of said members.
Claim 35
Dependent Claim
33 words
Apparatus in accordance with claim 32, further comprising means for causing said members to oscillate oppositely, an output shaft, and means for converting the oscillatory movement to rotary movement of said output shaft.
Claim 36
Dependent Claim
29 words
Apparatus in accordance with claim 33, said valve means comprising contra-rotating ring valves having ports in their periphery adapted to communicate with ports in the periphery of said tube.
Claim 37
Dependent Claim
28 words
Apparatus in accordance with claim 34, said movement-converting means comprising a gear train, said valves having shafts extending co-axially with said tube and coupled to said gear train.
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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |