Patent US3861484A successfully refreshed from Google Patents.
US3861484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hybrid vehicular power system
Assignee: Individual
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Filing: 1972-09-11
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Granted: 1975-01-21
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Expires: 1992-09-11
Abstract
Abstract A hybrid drive system is provided for a vehicle whereby an internal combustion engine and an electric motor may be used to drive the vehicle; the tow motors being coupled to the drive shaft of the vehicle through a planetary gear transmission system. The planetary gear system permits full control to be achieved of the vehicular speed while the internal combustion engine is operated at constant speed, and it permits either the electric motor or the internal combustion engine, or both, to be used to drive the vehicle.
Inventors
- 👤 Kenneth E Joslin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:49
CPC Classifications
B; B60; B60K; B60K6/00; B60K6/20; B60K6/22; B60K6/36; B60K6/365; B60K6/42; B60K6/44; B60K6/445; B60K6/48; B60W; B60W10/00; B60W10/24; B60W10/26; B60K2006/4833; F; F16; F16H; F16H37/00; F16H37/02; F16H37/06; F16H37/08; F16H37/10; F16H2037/103; F16H3/00; F16H3/44; F16H3/72; F16H3/727; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62; Y10; Y10S; Y10S903/00; Y10S903/902; Y10S903/903; Y10S903/904; Y10S903/909; Y10S903/91
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
266 words
A drive system for a vehicle, or the like, comprising: an electric motor; an internal combustion engine; a drive shaft for the vehicle; an electric generator; and gear means including a first section coupling said electric motor and said internal combustion engine to said drive shaft, and including a second section coupling said internal combustion engine to said electric generator to enable said internal combustion engine to drive said generator, in which said first section of said gEar means includes planetary gear carrier means coupled to said drive shaft and rotatable therewith about the longitudinal axis of said drive shaft; a first plurality of planetary gears carried by said carrier means; an input shaft coaxial with said drive shaft and coupled to said electric motor; a first sun gear coupled to said input shaft and rotatable therewith about the longitudinal axis thereof and engaging said first plurality of planetary gears; and an internal toothed gear coupled to said internal combustion engine to be driven thereby and surrounding and engaging said planetary gears of said first plurality, in which said second section of said gear means includes a second plurality of planetary gears carried by said carrier means, said second plurality of planetary gears being spaced axially from said first plurality of planetary gears and engaging said internally toothed gear; a further input shaft coaxial with said first-named input shaft and coupled to said electric generator to drive said generator; and a second sun gear coupled to said further input shaft and rotatable therewith about the longitudinal axis thereof and engaging said second plurality of planetary gears.
Claim 2
Dependent Claim
266 words
A drive system for a vehicle, or the like, comprising: an electric motor; an internal combustion engine; a drive shaft for the vehicle; an electric generator; and gear means including a first section coupling said electric motor and said internal combustion engine to said drive shaft, and including a second section coupling said internal combustion engine to said electric generator to enable said internal combustion engine to drive said generator, in which said first section of said gEar means includes planetary gear carrier means coupled to said drive shaft and rotatable therewith about the longitudinal axis of said drive shaft; a first plurality of planetary gears carried by said carrier means; an input shaft coaxial with said drive shaft and coupled to said electric motor; a first sun gear coupled to said input shaft and rotatable therewith about the longitudinal axis thereof and engaging said first plurality of planetary gears; and an internal toothed gear coupled to said internal combustion engine to be driven thereby and surrounding and engaging said planetary gears of said first plurality, in which said second section of said gear means includes a second plurality of planetary gears carried by said carrier means, said second plurality of planetary gears being spaced axially from said first plurality of planetary gears and engaging said internally toothed gear; a further input shaft coaxial with said first-named input shaft and coupled to said electric generator to drive said generator; and a second sun gear coupled to said further input shaft and rotatable therewith about the longitudinal axis thereof and engaging said second plurality of planetary gears.
Claim 3
Dependent Claim
34 words
The combination defined in claim 1, and which includes battery means electrically connected to said generator to be charged thereby and electrically connected to said electric motor to provide electric power for said motor.
Claim 4
Dependent Claim
37 words
The combination defined in claim 1, in which said first and second plurality of planetary gears are rotatable with said carrier means about the common longitudinal axis of said drive shaft and of said input reaction shaft.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |