Patent US3923115A successfully refreshed from Google Patents.
US3923115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hybrid drive
Assignee: Individual
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Filing: 1972-10-26
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Granted: 1975-12-02
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Expires: 1992-10-26
Abstract
Abstract This disclosure relates to a hybrid drive for vehicles and the like which includes at least two driving motors, at least one of the motors being an electric motor and there being at least one source of power coupled to one of the driving motors. Preferably, one of the motors is a motor having a maximum efficiency within a limited speed range and the other driving motor is one adaptable to varying speeds and loads. Also, the drive will be provided with accumulator means for accumulating unused power such as during periods of low operating requirements or/and during periods of deceleration.
Inventors
- 👤 Juergen Helling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:37
CPC Classifications
B; B60; B60K; B60K6/00; B60K6/08; B60K6/10; B60K6/105; B60K6/20; B60K6/22; B60K6/30; B60K6/42; B60K6/48; B60L; B60L50/00; B60L50/10; B60L50/15; B60L50/16; B60L50/30; B60L2200/00; B60L2200/26; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62; Y02T10/64; Y02T10/70; Y02T10/7072
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
222 words
A hybrid drive with at least two driving engines, among them at least one electric machine and at least one power source connected to the driving engines, a differential gearing means having three shafts, one of said three shafts being an output shaft, a brake coupled to said output shaft for restraining rotation thereof, said driving engines being coupled to said differential gearing means by the other two shafts of said three shafts, and the relationship between said other two shafts and said differential gearing means being one wherein when one of said other two shafts is driven in one direction and said output shaft is restrained by said brake against rotation the other of said two shafts is rotated in an opposite direction relative to said driven shaft, said electric machine being an electric generator-motor unit operable first as a generator with the speed of the driving therEof in said opposite direction decreasing to zero as said speed of said output shaft increases with said generator-motor unit thereafter functioning as a motor turning in said one direction and assisting in the driving of said output shaft, said differential gearing means being of the type for adding up the performance of said driving engines, a flywheel, and transmission gearing independently connecting said flywheel to at least one of said other two shafts.
Claim 2
Dependent Claim
222 words
A hybrid drive with at least two driving engines, among them at least one electric machine and at least one power source connected to the driving engines, a differential gearing means having three shafts, one of said three shafts being an output shaft, a brake coupled to said output shaft for restraining rotation thereof, said driving engines being coupled to said differential gearing means by the other two shafts of said three shafts, and the relationship between said other two shafts and said differential gearing means being one wherein when one of said other two shafts is driven in one direction and said output shaft is restrained by said brake against rotation the other of said two shafts is rotated in an opposite direction relative to said driven shaft, said electric machine being an electric generator-motor unit operable first as a generator with the speed of the driving therEof in said opposite direction decreasing to zero as said speed of said output shaft increases with said generator-motor unit thereafter functioning as a motor turning in said one direction and assisting in the driving of said output shaft, said differential gearing means being of the type for adding up the performance of said driving engines, a flywheel, and transmission gearing independently connecting said flywheel to at least one of said other two shafts.
Claim 3
Dependent Claim
32 words
A hybrid drive according to claim 1, wherein that driving engine coupled to said flywheel is limited more narrowly in regard to the r.p.m. and load range, than the other driving range.
Claim 4
Dependent Claim
21 words
A hybrid drive according to claim 2, characterized in that said more limitedly regulable driving engine is a thermal power engine.
Claim 5
Dependent Claim
16 words
A hybrid drive according to claim 1, wherein all of said driving engines are electric machines.
Claim 6
Dependent Claim
25 words
A hybrid drive according to claim 1 wherein a brake is provided between at least one of said driving engines and said differential gearing means.
Claim 7
Dependent Claim
21 words
A hybrid drive according to claim 1 wherein said power source is in the form of an accumulator for electric energy.
Claim 8
Dependent Claim
23 words
A hybrid drive according to claim 6 wherein a sensor measuring the state of the accumulator charge is connected to the electric accumulator.
Claim 9
Dependent Claim
29 words
A hybrid drive according to claim 1, wherein an eddy-current brake is disposed on the shaft of said flywheel with said flywheel forming a rotor of said eddy-current brake.
Claim 10
Dependent Claim
33 words
A hybrid drive according to claim 1 wherein a one way drive means is provided between said driving engine and said one of said other two shafts which is connected to said flywheel.
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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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |