Patent US3670705A successfully refreshed from Google Patents.
US3670705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine with an annular chamber
Assignee: Individual
•
Filing: 1970-07-28
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Granted: 1972-06-20
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Expires: 1990-07-28
Abstract
Abstract An engine comprises an annular chamber, a plurality of runners disposed in the annular chamber in a manner to be moved in the same direction by gas pressure through the annular chamber, the runners being divided into two equal groups each having at least two units, two rotor members respectively coupled with each group of runners, inertia imparting blocks attached to the respective rotor members so as to apply the momentum of the runners of one group to those of the other group by collision between the block associated with one rotor member and that coupled with the other rotor member, a power take off shaft journaled in bearings in a manner to be aligned with the rotating axis of the rotor members, two power transmitting members fixed to the power take off shaft so as to cooperate with each rotor member in the advancing direction of the runner, and means for preventing the rotor members from being moved backwards.
Inventors
- 👤 Masahiro Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:09
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/02; F01C1/063; F01C1/073; F02; F02B; F02B53/00; F02B53/04; F02B53/06; F02B1/00; F02B1/02; F02B1/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
307 words
A rotary engine comprising: a. an engine housing having an annular chamber; b. a power take-off shaft journaled at the axis of said annular chamber; c. a first rotor member and a second rotor member disposed oppositely to each other and loosely mounted for rotation on said shaft; d. a plurality of runners provided on each of said rotor members in circumferentially spaced fashion and slidably inserted in said annular chamber, the runners on the first rotor member alternating with those on the second rotor member such that two adjacent runners and the inner wall of said annular chamber define a gas actuated area; e. first and second power transmitting means fixedly connected to said shaft; f. first means causing the first and second rotor members to engage respectively with the first and second power transmitting means so as to prevent said transmitting means from idly moving backward with respect to said rotor members; g. second means causing the first and second rotor members to engage with the engine housing so as to prevent the backward idle movement of the rotor members; h. a pair of third means causing the rotor members to engage with the engine housing so as to prevent the forward idle movement of the rotor members while the rotor members are kept stationary; i. means for operating the third means to disengage the rotor members from the engine housing so as to allow the rotor members to move forward; j. means for connecting the running rotor member with the shaft to prevent the shaft from idly moving forward with respect to the running rotor member; k. at least one intake port on the annular chamber for introducing expansible gas into said gas actuated areas; and l. at least one exhaust port on the annular chamber for exhausting used gas from the actuated areas.
Claim 2
Dependent Claim
307 words
A rotary engine comprising: a. an engine housing having an annular chamber; b. a power take-off shaft journaled at the axis of said annular chamber; c. a first rotor member and a second rotor member disposed oppositely to each other and loosely mounted for rotation on said shaft; d. a plurality of runners provided on each of said rotor members in circumferentially spaced fashion and slidably inserted in said annular chamber, the runners on the first rotor member alternating with those on the second rotor member such that two adjacent runners and the inner wall of said annular chamber define a gas actuated area; e. first and second power transmitting means fixedly connected to said shaft; f. first means causing the first and second rotor members to engage respectively with the first and second power transmitting means so as to prevent said transmitting means from idly moving backward with respect to said rotor members; g. second means causing the first and second rotor members to engage with the engine housing so as to prevent the backward idle movement of the rotor members; h. a pair of third means causing the rotor members to engage with the engine housing so as to prevent the forward idle movement of the rotor members while the rotor members are kept stationary; i. means for operating the third means to disengage the rotor members from the engine housing so as to allow the rotor members to move forward; j. means for connecting the running rotor member with the shaft to prevent the shaft from idly moving forward with respect to the running rotor member; k. at least one intake port on the annular chamber for introducing expansible gas into said gas actuated areas; and l. at least one exhaust port on the annular chamber for exhausting used gas from the actuated areas.
Claim 3
Dependent Claim
122 words
The rotary engine according to claim 1 wherein said connecting means comprises a gear wheel fixed to the shaft and telescopically movable between the rotor members and having on the both sides bevel gear teeth engageable with bevel gear teeth provided on the inner sides of the rotor members, said bevel gear teeth of the gear wheel being formed so as to engage with those of the rotor members while the rotor members are running and to disengage from those of the rotor members while the rotor members are kept stationary, whereby the gear wheel selectively engages with the running rotor members to connect said running rotor members with the shaft so as to prevent the idle forward movement of the shaft.
Claim 4
Dependent Claim
107 words
The rotary engine according to claim 2 wherein each of said third means comprises ratchet teeth arranged coaxially with the shaft on the inside of the engine housing and depressible pawls provided circumferentially on each of the rotor members so as to engage the corresponding ratchet teeth while the rotor members are kept stationary; and said operating means comprises a plurality of disengaging members projecting laterally from each of the power transmitting means and arranged thereon in circumferentially spaced relationship to depress the pawls of the rotor members so as to disengage the rotor members from the corresponding power transmitting means while the rotor members are rotated.
Claim 5
Dependent Claim
97 words
The rotary engine according to claim 1 wherein said connecting means comprises first ratchet teeth arranged coaxially with the shaft on each of tHe power transmitting means, a plurality of first pawls provided and circumferentially spaced on the corresponding rotor member to engage with the first ratchet teeth so as to prevent the forward idle movement of the shaft while said corresponding rotor member is turning, and first disengaging members provided and circumferentially spaced on the other rotor member to disengage the first pawls from the first ratchet teeth while said corresponding rotor member is kept stationary.
Claim 6
Dependent Claim
98 words
The rotary engine according to claim 4 wherein each of said third means comprises second ratchet teeth arranged coaxially with the shaft on the inside of the engine housing, a plurality of second pawls circumferentially spaced on the corresponding rotor member to engage with the second ratchet teeth so as to prevent the forward idle movement of the corresponding rotor member while it is kept stationary, and said operating means comprises second disengaging members circumferentially spaced on the other rotor member to disengage the second pawls from the second ratchet teeth while said corresponding rotor member is running.
Claim 7
Dependent Claim
62 words
The rotary engine according to claim 1 including a plurality of circumferentially spaced inertia imparting blocks on each of the inner sides of the first and second rotor members, the blocks on the first rotor member alternating with those of the second rotor member, the blocks on the running first or second member striking against the stationary second or first member, respectively.
Claim 8
Dependent Claim
83 words
The rotary engine according to claim 1 wherein said first runners, second runners, intake ports and exhaust ports are respectively four, four, six and six in number, said engine having six ignition plugs, six pairs of said intake and exhaust ports, said ignition plugs and pairs of ports being alternately arranged on, and communicating with, the annular chamber, said engine including means for operating said ignition plugs and pairs of intake and exhaust ports in timed relationship with the rotation of said shaft.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |