US3823622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear train arrangements
Assignee: Nissan Motor Co Ltd
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Filing: 1972-09-13
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Granted: 1974-07-16
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Expires: 1992-09-13
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 and 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
- 👤 Y Mori
- 👤 N Okazaki
- 👤 K Ohtsuka
- 👤 T Iijima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:40
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/08; F16H57/10; F16H3/00; F16H3/44; F16H3/62; F16H3/66; F16H2200/00; F16H2200/003; F16H2200/0043; F16H2200/0047; F16H2200/0052; F16H2200/20; F16H2200/2002; F16H2200/201; F16H2200/2012
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
306 words
A gear train comprising: 1. an input shaft; 2. an output shaft; 3. a first planetary gear set having a ring gear, a pinion carrier carrying a planet pinion meshing with the ring gear, a sun gear meshing with the planet pinion, the sun gear being connected to said input shaft; 4. a second planetary gear set having a ring gear, a pinion carrier carrying a planet pinion meshing with the ring gear and a sun gear meshing with the planet pinion, the sun gear being connected to the ring gear of said first planetary gear set; 5. a third planetary gear set having a ring gear, a pinion carrier carrying a planet pinion meshing with the ring gear and a sun gear meshing with the planet pinion, the pinion carrier being connected with the ring gear of said second planetary gear set and said output shaft, the sun gear being connected with the sun gear of said second planetary gear set; 6. first clutch means for engaging said input shaft with the ring gear of said first planetary gear set, the sun gears of said second and third planetary gear sets during operation of fourth forward and reverse speeds; 7. second clutch means for engaging said input shaft with the ring gear of said third planetary gear set during operation of first, second, third and fourth forward speeds; 8. first brake means for anchoring the pinion carrier of said first planetary gear set during operation of second forward speed; 9. second brake means for anchoring the ring gear of said first planetary gear set, the sun gears of said second and third planetary gear sets during operation of third forward speed; and 10. third brake means for anchoring the pinion carrier of said second planetary gear set during operation of first forward and reverse speeds.
Claim 2
Dependent Claim
306 words
A gear train comprising: 1. an input shaft; 2. an output shaft; 3. a first planetary gear set having a ring gear, a pinion carrier carrying a planet pinion meshing with the ring gear, a sun gear meshing with the planet pinion, the sun gear being connected to said input shaft; 4. a second planetary gear set having a ring gear, a pinion carrier carrying a planet pinion meshing with the ring gear and a sun gear meshing with the planet pinion, the sun gear being connected to the ring gear of said first planetary gear set; 5. a third planetary gear set having a ring gear, a pinion carrier carrying a planet pinion meshing with the ring gear and a sun gear meshing with the planet pinion, the pinion carrier being connected with the ring gear of said second planetary gear set and said output shaft, the sun gear being connected with the sun gear of said second planetary gear set; 6. first clutch means for engaging said input shaft with the ring gear of said first planetary gear set, the sun gears of said second and third planetary gear sets during operation of fourth forward and reverse speeds; 7. second clutch means for engaging said input shaft with the ring gear of said third planetary gear set during operation of first, second, third and fourth forward speeds; 8. first brake means for anchoring the pinion carrier of said first planetary gear set during operation of second forward speed; 9. second brake means for anchoring the ring gear of said first planetary gear set, the sun gears of said second and third planetary gear sets during operation of third forward speed; and 10. third brake means for anchoring the pinion carrier of said second planetary gear set during operation of first forward and reverse speeds.
Claim 3
Dependent Claim
3 words
an output shaft;
Claim 4
Dependent Claim
3 words
an output shaft;
Claim 5
Dependent Claim
38 words
a first planetary gear set having a ring gear, a pinion carrier carrying a planet pinion meshing with the ring gear, a sun gear meshing with the planet pinion, the sun gear being connected to said input shaft;
Claim 6
Dependent Claim
38 words
a first planetary gear set having a ring gear, a pinion carrier carrying a planet pinion meshing with the ring gear, a sun gear meshing with the planet pinion, the sun gear being connected to said input shaft;
Claim 7
Dependent Claim
45 words
a second planetary gear set having a ring gear, a pinion carrier carrying a planet pinion meshing with the ring gear and a sun gear meshing with the planet pinion, the sun gear being connected to the ring gear of said first planetary gear set;
Claim 8
Dependent Claim
45 words
a second planetary gear set having a ring gear, a pinion carrier carrying a planet pinion meshing with the ring gear and a sun gear meshing with the planet pinion, the sun gear being connected to the ring gear of said first planetary gear set;
Claim 9
Dependent Claim
64 words
a third planetary gear set having a ring gear, a pinion carrier carrying a planet pinion meshing with the ring gear and a sun gear meshing with the planet pinion, the pinion carrier being connected with the ring gear of said second planetary gear set and said output shaft, the sun gear being connected with the sun gear of said second planetary gear set;
Claim 10
Dependent Claim
64 words
a third planetary gear set having a ring gear, a pinion carrier carrying a planet pinion meshing with the ring gear and a sun gear meshing with the planet pinion, the pinion carrier being connected with the ring gear of said second planetary gear set and said output shaft, the sun gear being connected with the sun gear of said second planetary gear set;
Claim 11
Dependent Claim
37 words
first clutch means for engaging said input shaft with the ring gear of said first planetary gear set, the sun gears of said second and third planetary gear sets during operation of fourth forward and reverse speeds;
Claim 12
Dependent Claim
37 words
first clutch means for engaging said input shaft with the ring gear of said first planetary gear set, the sun gears of said second and third planetary gear sets during operation of fourth forward and reverse speeds;
Claim 13
Dependent Claim
28 words
second clutch means for engaging said input shaft with the ring gear of said third planetary gear set during operation of first, second, third and fourth forward speeds;
Claim 14
Dependent Claim
28 words
second clutch means for engaging said input shaft with the ring gear of said third planetary gear set during operation of first, second, third and fourth forward speeds;
Claim 15
Dependent Claim
20 words
first brake means for anchoring the pinion carrier of said first planetary gear set during operation of second forward speed;
Claim 16
Dependent Claim
20 words
first brake means for anchoring the pinion carrier of said first planetary gear set during operation of second forward speed;
Claim 17
Dependent Claim
32 words
second brake means for anchoring the ring gear of said first planetary gear set, the sun gears of said second and third planetary gear sets during operation of third forward speed; and
Claim 18
Dependent Claim
32 words
second brake means for anchoring the ring gear of said first planetary gear set, the sun gears of said second and third planetary gear sets during operation of third forward speed; and
Claim 19
Dependent Claim
22 words
third brake means for anchoring the pinion carrier of said second planetary gear set during operation of first forward and reverse speeds.
Claim 20
Dependent Claim
22 words
third brake means for anchoring the pinion carrier of said second planetary gear set during operation of first forward and reverse speeds.
References Cited (Backward Citations)
US2546378A
Cited
US2917951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |