US3853023A
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: 1974-12-10
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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
2026-10-30 09:45
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/62; F16H3/66; F16H3/663; F16H2200/00; F16H2200/003; F16H2200/0043; F16H2200/0047; F16H2200/0052; F16H2200/20; F16H2200/2002; F16H2200/2007; F16H2200/201; F16H2200/2012
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
130 words
A gear train comprising: 1. an input shaft (10); 2. an output shaft (11); 3. a first planetary gear set (12a) having a ring gear (R1), a pinion carrier (15a) carrying planet pinion (P1) meshing with the ring gear (R1) and a sun gear (S1) meshing with the planet pinion (P1), the pinion carrier (15a) thereof being connected to said output shaft; 4. second planetary gear set (13a) having a ring gear (R2) and a planet pinion (P2) carried by the pinion carrier (15a) of said first planetary gear set (12a), said ring gear (R2) meshing with the planet pinion (P2) of said second planetary gear set, the planet pinion (P2) of said second planetary gear set meshing with the planet pinion (P1) of said first planetary gear set (12a);
Claim 2
Dependent Claim
130 words
A gear train comprising: 1. an input shaft (10); 2. an output shaft (11); 3. a first planetary gear set (12a) having a ring gear (R1), a pinion carrier (15a) carrying planet pinion (P1) meshing with the ring gear (R1) and a sun gear (S1) meshing with the planet pinion (P1), the pinion carrier (15a) thereof being connected to said output shaft; 4. second planetary gear set (13a) having a ring gear (R2) and a planet pinion (P2) carried by the pinion carrier (15a) of said first planetary gear set (12a), said ring gear (R2) meshing with the planet pinion (P2) of said second planetary gear set, the planet pinion (P2) of said second planetary gear set meshing with the planet pinion (P1) of said first planetary gear set (12a);
Claim 3
Dependent Claim
4 words
an output shaft (11);
Claim 4
Dependent Claim
4 words
an output shaft (11);
Claim 5
Dependent Claim
47 words
a first planetary gear set (12a) having a ring gear (R1), a pinion carrier (15a) carrying planet pinion (P1) meshing with the ring gear (R1) and a sun gear (S1) meshing with the planet pinion (P1), the pinion carrier (15a) thereof being connected to said output shaft;
Claim 6
Dependent Claim
47 words
a first planetary gear set (12a) having a ring gear (R1), a pinion carrier (15a) carrying planet pinion (P1) meshing with the ring gear (R1) and a sun gear (S1) meshing with the planet pinion (P1), the pinion carrier (15a) thereof being connected to said output shaft;
Claim 7
Dependent Claim
67 words
second planetary gear set (13a) having a ring gear (R2) and a planet pinion (P2) carried by the pinion carrier (15a) of said first planetary gear set (12a), said ring gear (R2) meshing with the planet pinion (P2) of said second planetary gear set, the planet pinion (P2) of said second planetary gear set meshing with the planet pinion (P1) of said first planetary gear set (12a);
Claim 8
Dependent Claim
67 words
second planetary gear set (13a) having a ring gear (R2) and a planet pinion (P2) carried by the pinion carrier (15a) of said first planetary gear set (12a), said ring gear (R2) meshing with the planet pinion (P2) of said second planetary gear set, the planet pinion (P2) of said second planetary gear set meshing with the planet pinion (P1) of said first planetary gear set (12a);
Claim 9
Dependent Claim
69 words
A third planetary gear set (14) having a ring gear (R3) connected to the pinion carrier (15a) of said first planetary gear set, a pinion carrier (17) carrying a planet pinion (P3) meshing with the ring gear (R3) thereof and a sun gear (S3) meshing with the planet pinion (P3) thereof, the sun gear (S3) thereof being connected to the sun gear (S1) of said first planetary gear set;
Claim 10
Dependent Claim
69 words
A third planetary gear set (14) having a ring gear (R3) connected to the pinion carrier (15a) of said first planetary gear set, a pinion carrier (17) carrying a planet pinion (P3) meshing with the ring gear (R3) thereof and a sun gear (S3) meshing with the planet pinion (P3) thereof, the sun gear (S3) thereof being connected to the sun gear (S1) of said first planetary gear set;
Claim 11
Dependent Claim
229 words
A third planetary gear set (14) having a ring gear (R3) connected to the pinion carrier (15a) of said first planetary gear set, a pinion carrier (17) carrying a planet pinion (P3) meshing with the ring gear (R3) thereof and a sun gear (S3) meshing with the planet pinion (P3) thereof, the sun gear (S3) thereof being connected to the sun gear (S1) of said first planetary gear set; 6. first clutch means (C1) for engaging said input shaft with the ring gear (R1) of said first planetary gear set during operation of first, second, third, and fourth forward speeds; 7. second clutch means C2 for engaging said input shaft (10) with the sun gears (S1, S3) of said first and third planetary gear sets during fourth forward speed and reverse speed; 8. first brake means (B1) for anchoring the sun gears (S1, S3) of said first and third planetary gear sets during third forward speed; 9. second brake means (B2) for anchoring the ring gear (R2) of said second planetary gear set during second forward speed; 10. third brake means (B3) for anchoring the pinion carrier (17) of said third planetary gear set during reverse speed; and 11. one-way brake means (42(C3)) for preventing the pinion carrier (17) of said third planetary gear set from rotating in a direction opposite to the rotation of said input shaft (10).
Claim 12
Dependent Claim
229 words
A third planetary gear set (14) having a ring gear (R3) connected to the pinion carrier (15a) of said first planetary gear set, a pinion carrier (17) carrying a planet pinion (P3) meshing with the ring gear (R3) thereof and a sun gear (S3) meshing with the planet pinion (P3) thereof, the sun gear (S3) thereof being connected to the sun gear (S1) of said first planetary gear set; 6. first clutch means (C1) for engaging said input shaft with the ring gear (R1) of said first planetary gear set during operation of first, second, third, and fourth forward speeds; 7. second clutch means C2 for engaging said input shaft (10) with the sun gears (S1, S3) of said first and third planetary gear sets during fourth forward speed and reverse speed; 8. first brake means (B1) for anchoring the sun gears (S1, S3) of said first and third planetary gear sets during third forward speed; 9. second brake means (B2) for anchoring the ring gear (R2) of said second planetary gear set during second forward speed; 10. third brake means (B3) for anchoring the pinion carrier (17) of said third planetary gear set during reverse speed; and 11. one-way brake means (42(C3)) for preventing the pinion carrier (17) of said third planetary gear set from rotating in a direction opposite to the rotation of said input shaft (10).
Claim 13
Dependent Claim
30 words
first clutch means (C1) for engaging said input shaft with the ring gear (R1) of said first planetary gear set during operation of first, second, third, and fourth forward speeds;
Claim 14
Dependent Claim
30 words
first clutch means (C1) for engaging said input shaft with the ring gear (R1) of said first planetary gear set during operation of first, second, third, and fourth forward speeds;
Claim 15
Dependent Claim
31 words
second clutch means C2 for engaging said input shaft (10) with the sun gears (S1, S3) of said first and third planetary gear sets during fourth forward speed and reverse speed;
Claim 16
Dependent Claim
31 words
second clutch means C2 for engaging said input shaft (10) with the sun gears (S1, S3) of said first and third planetary gear sets during fourth forward speed and reverse speed;
Claim 17
Dependent Claim
23 words
first brake means (B1) for anchoring the sun gears (S1, S3) of said first and third planetary gear sets during third forward speed;
Claim 18
Dependent Claim
23 words
first brake means (B1) for anchoring the sun gears (S1, S3) of said first and third planetary gear sets during third forward speed;
Claim 19
Dependent Claim
20 words
second brake means (B2) for anchoring the ring gear (R2) of said second planetary gear set during second forward speed;
Claim 20
Dependent Claim
20 words
second brake means (B2) for anchoring the ring gear (R2) of said second planetary gear set during second forward speed;
Claim 21
Dependent Claim
20 words
third brake means (B3) for anchoring the pinion carrier (17) of said third planetary gear set during reverse speed; and
Claim 22
Dependent Claim
20 words
third brake means (B3) for anchoring the pinion carrier (17) of said third planetary gear set during reverse speed; and
Claim 23
Dependent Claim
30 words
one-way brake means (42(C3)) for preventing the pinion carrier (17) of said third planetary gear set from rotating in a direction opposite to the rotation of said input shaft (10).
Claim 24
Dependent Claim
30 words
one-way brake means (42(C3)) for preventing the pinion carrier (17) of said third planetary gear set from rotating in a direction opposite to the rotation of said input shaft (10).
References Cited (Backward Citations)
US2847877A
Cited
US2919606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |