IP Library › Granted Patent US 8,641,570
Granted Patent B2
US 8,641,570 · App. 13/425,501 · Granted Feb 4, 2014

Infinitely variable motion control (IVMC) for generators, transmissions and pumps/compressors

Inventor: Kyung Soo Han (Timonium, MD)
Assignee: Differential Dynamics Corporation
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Quick Facts
Patent No.
US 8,641,570
App. No.
13/425,501
Granted
Feb 4, 2014
Kind
B2
Abstract

Infinitely variable motion control (IVMC) provides motion control without any requirement for changing gears or use of a clutch. A spur gear transgear, defined as a system having an input, an output and a control, a variable pitch cam having an eccentric inner and outer cam assembly, a driver and a one-way clutch or ratchet bearing assembly may be used to form a cam controlled speed converter converting a given input to a variable or constant output speeds and further having direction control. All IVMC's, cam controlled IVMC, input compensated IVMC and pitch controlled IVMC may be utilized to form various embodiments of infinitely variable generators, transmissions and compressors/pumps.

Claims (19)

1. A cam controlled infinitely variable transmission comprising an input shaft, a speed control, a direction control assembly for reverse and forward direction and an output shaft, the direction control comprising an output gear of the direction control assembly meshed to an output gear of the output shaft, the direction control further comprising first and second direction control cams for activating associated brakes having a tension controlled by first and second adjusters adjustable by a user, the speed control comprising a speed control sleeve surrounding the input shaft.

2. The transmission of claim 1 wherein the speed control comprises a variable pitch cam.

3. The transmission of claim 1 wherein the direction control assembly comprises first and second trans gears assembled back to back.

4. The transmission of claim 3 wherein the first transgear comprises a sun gear attached to the input shaft.

5. The transmission of claim 3 wherein the second transgear comprises a sun gear attached to the input shaft.

6. The transmission of claim 1 wherein the speed control further comprises first and second carrier brackets attached together by first and second pins.

7. The transmission of claim 6 wherein planetary gears are freely rotatable around the first and second pins, a brake being activated fixing the carrier brackets, a first brake causing opposite rotation of the output shaft from the input shaft and a second brake causing a same direction of rotation of the output shaft from the input shaft.

8. The transmission of claim 6 , no brake actuation of the carrier brackets causing no output.

9. The transmission of claim 3 , the direction control assembly further comprising a spur gear transgear assembly coupled to the speed control.

10. A cam controlled infinitely variable transmission comprising an shaft, a speed control, a direction control assembly for reverse and forward direction and an output shaft, the direction control comprising an output gear of the direction control assembly meshed to an output gear of the output shaft, the direction control further comprising first and second direction control cams for activating associated brakes having a tension controlled by first and second adjusters adjustable by a user comprising reversing control wherein the reversing control comprises a left sun gear meshed to a right sun gear of the input shaft and a reversing gear coupled to the left sun gear and to a gear of a cam shaft.

11. The transmission of claim 10 wherein the speed control comprises a variable pitch cam.

12. The transmission of claim 10 wherein the direction control assembly comprises first and second transgears assembled back to back.

13. The transmission of claim 11 wherein the speed control further comprises first and second carrier brackets attached together by first and second pins.

14. The transmission of claim 13 wherein planetary gears are freely rotatable around the first and second pins, a brake being activated fixing the carrier brackets, a first brake causing opposite rotation of the output shaft from the input shaft and a second brake causing a same direction of rotation of the output shaft from the input shaft.

15. A cam controlled infinitely variable transmission comprising input shaft, a speed control, a direction control assembly for reverse and forward direction and an output shaft, the direction control comprising an output gear of the direction control assembly meshed to an output gear of the output shaft, the direction control further comprising first and second direction control cams for activating associated brakes having a tension controlled by first and second adjusters adjustable by a user wherein the input shaft is coupled to a camshaft via a reversing gear.

16. The transmission of claim 15 wherein the speed control comprises a variable pitch cam.

17. The transmission of claim 15 wherein the direction control comprises first and second transgears assembled back to back.

18. The transmission of claim 16 wherein the speed control further comprises first and second carrier brackets attached together by first and second pins.

19. The transmission of claim 18 wherein planetary gears are freely rotatable around the first and second pins, a brake being activated fixing the carrier brackets, a first brake causing opposite rotation of the output shaft from the input shaft and a second brake causing a same direction of rotation of the output shaft from the input shaft.

Assignments (2)
SECURITY INTEREST Recorded Apr 7, 2016
From: DIFFERENTIAL DYNAMICS CORPORATION
To: BERKELEY, ALFRED R., III
Reel/Frame 038400/0124 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 25, 2016
From: HAN, KYUNG SOO
To: DIFFERENTIAL DYNAMICS CORPORATION
Reel/Frame 038105/0922 →
Continuity (4)
Continuation In Part 13384621
Provisional Application 61466056 · Mar 22, 2011
Provisional Application 61226943 · Jul 20, 2009
Related Publication 20120243991A1 · Sep 27, 2012