US3701293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear train arrangements
Assignee: Nissan Motor Co Ltd
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Filing: 1970-04-21
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Granted: 1972-10-31
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Expires: 1990-04-21
Abstract
Abstract Gear train arrangements for transmitting a power from a driving source to a driven member at more than three speeds in one direction an another speed in the opposite direction, the gear train arrangements using basically three planetary gear sets and at least five friction elements such as clutches and brakes which are selectively actuated to selectively engage the rotary members of the three planetary gear sets to deliver an output power at the above said speeds. The gear train arrangements are specifically adapted for use in an automatic transmission system of a motor vehicle using a torque converter or fluid coupling.
Inventors
- 👤 Yoichi Mori
- 👤 Nobuo Okazaki
- 👤 Kunio Ohtsuka
- 👤 Tetsuya Iijima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:53
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/62; F16H3/66; F16H2200/00; F16H2200/003; F16H2200/0043; F16H2200/20; F16H2200/2002; F16H2200/201
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
333 words
A gear train comprising: 1. an input shaft; 2. an intermediate shaft; 3. an output shaft; 4. a first planetary gear set having a ring gear, a pinion carrier connected to said output shaft, a plurality of planet pinions rotatably journaled on the pinion carrier and a sun gear on said intermediate shaft meshing with the planet pinions; 5. a second planetary gear set having a ring gear connected to said output shaft, a pinion carrier, a plurality of planet pinions rotatably journaled on the carrier, the planet pinions meshing with the ring gear, and a sun gear on said intermediate shaft integrally connected to the sun gear of said first planetary gear set, the sun gear of the second planetary gear set meshing with the planet pinions; 6. a third planetary gear set having a ring gear, a pinion carrier integrally connected to the carrier of said second planetary gear set, a plurality of planet pinions rotatably journaled on the carrier, the planet pinions meshing with the ring gear, and a sun gear integrally connected to said output shaft, the sun gear meshing with the planet pinions; 7. a first clutch means for connecting said input shaft with the ring gear of said first planetary gear set during operation of first, second, third and fourth forward speed ratios; 8. a second clutch means for connecting said input shaft with the sun gears of said first and second planetary gear sets during operation of the fourth forward speed ratio and the reverse speed ratio; 9. a first Brake means for anchoring the sun gears of said first and second planetary gear sets during operation of the third forward speed ratio; 10. a second brake means for anchoring the carriers of said second and third planetary gear sets during operation of the first forward speed and reverse speed ratios; and 11. a third brake means for anchoring the ring gear of said third planetary gear set during operation of the second forward speed ratio.
Claim 2
Dependent Claim
333 words
A gear train comprising: 1. an input shaft; 2. an intermediate shaft; 3. an output shaft; 4. a first planetary gear set having a ring gear, a pinion carrier connected to said output shaft, a plurality of planet pinions rotatably journaled on the pinion carrier and a sun gear on said intermediate shaft meshing with the planet pinions; 5. a second planetary gear set having a ring gear connected to said output shaft, a pinion carrier, a plurality of planet pinions rotatably journaled on the carrier, the planet pinions meshing with the ring gear, and a sun gear on said intermediate shaft integrally connected to the sun gear of said first planetary gear set, the sun gear of the second planetary gear set meshing with the planet pinions; 6. a third planetary gear set having a ring gear, a pinion carrier integrally connected to the carrier of said second planetary gear set, a plurality of planet pinions rotatably journaled on the carrier, the planet pinions meshing with the ring gear, and a sun gear integrally connected to said output shaft, the sun gear meshing with the planet pinions; 7. a first clutch means for connecting said input shaft with the ring gear of said first planetary gear set during operation of first, second, third and fourth forward speed ratios; 8. a second clutch means for connecting said input shaft with the sun gears of said first and second planetary gear sets during operation of the fourth forward speed ratio and the reverse speed ratio; 9. a first Brake means for anchoring the sun gears of said first and second planetary gear sets during operation of the third forward speed ratio; 10. a second brake means for anchoring the carriers of said second and third planetary gear sets during operation of the first forward speed and reverse speed ratios; and 11. a third brake means for anchoring the ring gear of said third planetary gear set during operation of the second forward speed ratio.
Claim 3
Dependent Claim
3 words
an intermediate shaft;
Claim 4
Dependent Claim
3 words
an intermediate shaft;
Claim 5
Dependent Claim
3 words
an output shaft;
Claim 6
Dependent Claim
3 words
an output shaft;
Claim 7
Dependent Claim
41 words
a first planetary gear set having a ring gear, a pinion carrier connected to said output shaft, a plurality of planet pinions rotatably journaled on the pinion carrier and a sun gear on said intermediate shaft meshing with the planet pinions;
Claim 8
Dependent Claim
41 words
a first planetary gear set having a ring gear, a pinion carrier connected to said output shaft, a plurality of planet pinions rotatably journaled on the pinion carrier and a sun gear on said intermediate shaft meshing with the planet pinions;
Claim 9
Dependent Claim
69 words
a second planetary gear set having a ring gear connected to said output shaft, a pinion carrier, a plurality of planet pinions rotatably journaled on the carrier, the planet pinions meshing with the ring gear, and a sun gear on said intermediate shaft integrally connected to the sun gear of said first planetary gear set, the sun gear of the second planetary gear set meshing with the planet pinions;
Claim 10
Dependent Claim
69 words
a second planetary gear set having a ring gear connected to said output shaft, a pinion carrier, a plurality of planet pinions rotatably journaled on the carrier, the planet pinions meshing with the ring gear, and a sun gear on said intermediate shaft integrally connected to the sun gear of said first planetary gear set, the sun gear of the second planetary gear set meshing with the planet pinions;
Claim 11
Dependent Claim
59 words
a third planetary gear set having a ring gear, a pinion carrier integrally connected to the carrier of said second planetary gear set, a plurality of planet pinions rotatably journaled on the carrier, the planet pinions meshing with the ring gear, and a sun gear integrally connected to said output shaft, the sun gear meshing with the planet pinions;
Claim 12
Dependent Claim
59 words
a third planetary gear set having a ring gear, a pinion carrier integrally connected to the carrier of said second planetary gear set, a plurality of planet pinions rotatably journaled on the carrier, the planet pinions meshing with the ring gear, and a sun gear integrally connected to said output shaft, the sun gear meshing with the planet pinions;
Claim 13
Dependent Claim
30 words
a first clutch means for connecting said input shaft with the ring gear of said first planetary gear set during operation of first, second, third and fourth forward speed ratios;
Claim 14
Dependent Claim
30 words
a first clutch means for connecting said input shaft with the ring gear of said first planetary gear set during operation of first, second, third and fourth forward speed ratios;
Claim 15
Dependent Claim
34 words
a second clutch means for connecting said input shaft with the sun gears of said first and second planetary gear sets during operation of the fourth forward speed ratio and the reverse speed ratio;
Claim 16
Dependent Claim
34 words
a second clutch means for connecting said input shaft with the sun gears of said first and second planetary gear sets during operation of the fourth forward speed ratio and the reverse speed ratio;
Claim 17
Dependent Claim
25 words
a first Brake means for anchoring the sun gears of said first and second planetary gear sets during operation of the third forward speed ratio;
Claim 18
Dependent Claim
25 words
a first Brake means for anchoring the sun gears of said first and second planetary gear sets during operation of the third forward speed ratio;
Claim 19
Dependent Claim
28 words
a second brake means for anchoring the carriers of said second and third planetary gear sets during operation of the first forward speed and reverse speed ratios; and
Claim 20
Dependent Claim
28 words
a second brake means for anchoring the carriers of said second and third planetary gear sets during operation of the first forward speed and reverse speed ratios; and
Claim 21
Dependent Claim
23 words
a third brake means for anchoring the ring gear of said third planetary gear set during operation of the second forward speed ratio.
Claim 22
Dependent Claim
23 words
a third brake means for anchoring the ring gear of said third planetary gear set during operation of the second forward speed ratio.
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) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |