Generator with output options and low loss windings

• US 8,378,546 B2
• Filed: 12/12/2003
• Issued: 02/19/2013
• Est. Priority Date: 12/12/2003
• Status: Active Grant

• Current Assignee: Gerfast, Sten R.
• Original Assignee: Gerfast, Sten R.
• Inventors: Gerfast, Sten R.
• Primary Examiner(s): NGUYEN, TRAN N
• Application Number:
  US10/733,944
• Publication Number:
  US 20050127771A1
• Time in Patent Office: 3,357 Days
• Field of Search: 310/68.R, 310/68.D, 310/158, 310/162, 310/166, 310/168, 310/171, 310/180, 310/179, 290/40.C
• US Class Current: 310/158
• CPC Class Codes: H02K 19/22 having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators
• CPC Class Codes: H02K 19/34 Generators with two or more outputs
• CPC Class Codes: H02K 19/36 Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches
• CPC Class Codes: H02K 21/16 having annular armature cores with salient poles with homopolar co-operation H02K21/20
• CPC Class Codes: H02K 21/48 Generators with two or more outputs
• CPC Class Codes: H02P 2101/45 for motor vehicles, e.g. car alternators
• CPC Class Codes: H02P 9/307 more than one voltage output

Abstract

A more fuel efficient automotive generator, then present alternators, because of its better magnetic utilization of its series connected copper windings on its salient stator poles. It also has output options for resistive loads as well as for direct current devises with both options designed for lower cost, smaller physical size, greater electrical efficiency and lower diode losses.

Claims

1. A single coil generator comprising:

a single coil generator having a rotor journalled in a generator frame, said rotor having a plurality of salient permanent magnet poles,

a stator with an equal number of salient stator poles,

each including alternately wound coils forming a single coil with two free stator coil ends, generating alternating current (AC)

that is connected to an AC load.

2. The generator of claim 1 wherein the output is split into AC and rectified direct current (DC).

3. The generator of claim 2 wherein the AC output is connected to a first AC load through AC rated switches and the rectified DC is connected to a second DC load through DC rated switches.

4. The generator of claim 1 wherein the output is having any combinations of low and high voltage as well as AC and DC.

5. The generator of claim 2 wherein said stator poles have same dimensional width as said rotor poles.

6. The generator of claim 1 wherein the AC is rectified by four diodes in a bridge circuit and then is connected to a DC load.

16. The generator of claim 1 wherein said alternately wound coils are in a position in front of said rotor to generate AC at all times.

17. The generator of claim 1 wherein said generator is brushless and void of slip-rings.

18. The generator of claim 2 wherein the AC output and the DC output have a common ground.

7. An output option generator with low loss switching devices comprising:

a generator having a rotor journalled in a generator frame,

said rotor having a plurality of salient alternate polarity permanent magnet poles,

a stator with an equal number of salient poles,

each including alternately wound coils forming a single coil with two free stator coil ends, generating (AC) connected to a first load through AC rated switches,

said AC output rectified and connected to a second load through DC rated switches.

8. The generator of claim 7 wherein said first load consists of incandescent lamps, heaters and AC motors, and wherein said second load consists of DC motors, actuators and a battery.

9. The generator of claim 7 wherein said first output is voltage regulated with silicon controlled rectifiers (S.C.R'"'"'s).

10. The generator of claim 7 wherein the output is split into AC and rectified DC.

11. The generator of claim 7 wherein the output is having any combination of low and high voltage as well as AC and DC.

12. The generator of claim 7 wherein said rotor is having permanent magnet poles.

13. The generator of claim 7 wherein said stator poles have same dimensional width as said rotor poles.

14. The generator of claim 7 wherein the AC is rectified by four diodes in a bridge circuit and then is connected to a DC load.

15. The generator of claim 7 wherein said four diodes are the sole diodes in the generator system.