Power supply of installations driven by internal combustion engines, especially of motor vehicles

• US 4,097,752 A
• Filed: 07/08/1976
• Issued: 06/27/1978
• Est. Priority Date: 07/12/1975
• Status: Expired due to Term

• Current Assignee: Daimler-Benz AG (Mercedes-Benz Group AG)
• Original Assignee: Daimler-Benz AG (Mercedes-Benz Group AG)
• Inventors: Wulf, Helmut, Weidemann, Wolfgang
• Primary Examiner(s): Rubinson, Gene Z.
• Assistant Examiner(s): Feeney, William L.
• Application Number:
  US05/703,603
• Time in Patent Office: 719 Days
• Field of Search: 290/1 R, 290/4 D, 290/18, 290/19, 290/20, 60/320, 60/597, 60/624, 60/712, 60/721, 60/698, 180/65 R, 180/65 A, 180/65 D, 310/DIG. 5, 310/74, 310/261
• US Class Current: 290/20
• CPC Class Codes: B60K 6/24 characterised by the combustion engines
• CPC Class Codes: B60K 6/26 characterised by the motors or the generators
• CPC Class Codes: B60K 6/485 Motor-assist type
• CPC Class Codes: B60R 16/03 for supply of electrical power to vehicle subsystems or for circuit arrangements for charging batteries H02J7/00
• CPC Class Codes: B60T 1/10 by utilising wheel movement for accumulating energy, e.g. driving air compressors
• CPC Class Codes: B60T 13/74 with electrical assistance or drive
• CPC Class Codes: F02G 5/02 Profiting from waste heat of exhaust gases
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y10S 903/905 Combustion engine
• CPC Class Codes: Y10S 903/906 Motor or generator

Abstract

A power supply of installations, especially of motor vehicles, driven by internal combustion engines which consists of a generator, a storage battery and loads as well as corresponding switching means; at least one thermionic converter acted upon by the hot exhaust gases serves as generator while at least one electric motor feeding mechanically into the drive connection of the installation is provided as load; the thermionic converter or converters as well as preferably also the storage capacity of the battery are designed as regards their power output for approximately the utilizable thermal energy of the exhaust gases of the internal combustion engine.

Claims

1. A power supply arrangement for installations driven by internal combustion engines, which comprises a generator means, a storage battery means and load means as well as switching means and means for operatively connecting the generator means, storage battery means, load means and switching means, at least one thermionic converter means acted upon by the hot exhaust gases of the internal combustion engine serving as generator means, characterized in that also at least one electric motor means is provided as load means which mechanically feeds into the power flow of the drive connection of the installation, the thermionic converter means being constructed and rated for power output in accordance with the utilizable thermal energy content of the exhaust gases of the internal combustion engine, the electric motor means including a rotor and a stator, the rotor being operatively connected with a rotating part in the power flow connection for the mechanical drive of the installation, and the stator being arranged non-rotatably about the rotor and being radially immovably supported with respect to the rotor, and the electric motor means being arranged within the area of a flywheel of the internal combustion engine the rotor serving at least as a part of the flywheel mass.

2. An arrangement according to claim 1, characterized in that in addition to the thermionic converter means, also the storage capacity of the battery means is constructed and rated for power output in accordance with the utilizable thermal energy content of the exhaust gases.

3. An arrangement according to claim 2, characterized in that the installation is a motor vehicle.

4. An arrangement according to claim 1, characterized in that the rotor is securely connected with said rotating part.

5. An arrangement according to claim 4, characterized in that the electric motor means is regulatable by control means.

6. An arrangement according to claim 5, characterized in that the electric motor means is operable to be switched by said control means to operate as generator means feeding the power supply.

7. An arrangement according to claim 6, characterized in that the electric motor means is operable as pole-changeable electric motor.

8. An arrangement according to claim 7, characterized in that one electric motor means each is provided per driving wheel of the vehicle, which is arranged in the region of the axle of the associated driving wheel.

9. An arrangement according to claim 8, characterized in that the thermionic converter means is arranged in the exhaust system of the internal combustion engine near the internal combustion engine.

10. An arrangement according to claim 8, characterized in that in addition to the thermionic converter means, also the storage capacity of the battery means is constructed and rated for power output in accordance with the utilizable thermal energy content of the exhaust gases.

11. A power supply arrangement for installations driven by internal combustion engines, which comprises a generator means, a storage battery means and load means as well as switching means and means for operatively connecting the generator means, storage battery means, load means and switching means, at least one thermionic converter means acted upon by the hot exhaust gases of the internal combustion engine serving as generator means, characterized in that also at least one electric motor means is provided as load means which mechanically feeds into the power flow of the drive connection of the installation, the thermionic converter means being constructed and rated for power output in accordance with the utilizable thermal energy content of the exhaust gases of the internal combustion engine, the electric motor means being regulatable by control means, and the electric motor means being operable as pole-changeable electric motor.

12. An arrangement according to claim 11, characterized in that the electric motor means is operable to be switched by said control means to operate as generator means feeding the power supply.

13. A power supply arrangement for installations driven by internal combustion engines, which comprises a generator means, a storage battery means and load means as well as switching means and means for operatively connecting the generator means, storage battery means, load means and switching means, at least one thermionic converter means acted upon by the hot exhaust gases of the internal combustion engine serving as generator means, characterized in that also at least one electric motor means is provided as load means which mechanically feeds into the power flow of the drive connection of the installation, the thermionic converter means being constructed and rated for power output in accordance with the utilizable thermal energy content of the exhaust gases of the internal combustion engine, the at least one electric motor means including one electric motor means each provided per driving wheel of the vehicle and arranged in the region of the axle of the associated driving wheel.