Infinitely variable motion control (IVMC) for a transmission with a differential
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 and a driver may be used to form a speed converter. The speed converter is used in various forms to provide an infinitely variable transmission, a differential, embodiments of wind and river turbines and pumps/compressors. In one embodiment, the speed converter drives first and second directional control assemblies to provide a vehicle with zero turn radius. A variable torque converter may be used in various embodiments to control torque from a minimum to a maximum by controlling movement of a rotor along a shaft in relation to a stator.
1. An infinitely variable motion control transmission including a differential assembly, the differential assembly comprising a left differential output sleeve and a right differential output shaft, a first left sun gear integral with or fixed to the left differential output sleeve and a first right sun gear being integral with or fixed to the right differential output shaft, the transmission further comprising a speed converter and a direction control assembly, the speed converter comprising a shaft of a spur gear transgear assembly having an associated worm and worm gear, the spur gear transgear shaft being meshed to a first carrier gear and a second carrier gear of a Sprag gear assembly of the speed converter.
2. The infinitely variable motion control transmission including a differential assembly of claim 1 further comprising first and second carriers coupled between third and fourth carriers of the direction control assembly and the differential assembly.
3. The infinitely variable motion control transmission including a differential assembly of claim 1 , the differential assembly further comprising a band brake and brake disc for braking the right differential output shaft.
4. The infinitely variable motion control transmission including a differential assembly of claim 3 , the band brake being not engaged, differential outputs comprising the left differential output sleeve and the right differential output shaft, the differential assembly being in an open state.
5. The infinitely variable motion control transmission including a differential assembly of claim 3 , the band brake being engaged and a second right sun gear of the differential assembly being fixed, the differential assembly being in a locked state.
6. The infinitely variable motion control transmission including a differential assembly of claim 2 , the direction control assembly having associated first and second carriers of the differential assembly comprising output gears meshed to third and fourth carriers of the direction control assembly such that if an input to the direction control assembly is one revolution clockwise, the third and fourth carriers of the direction control assembly rotating counterclockwise, a left sun gear output gear of the differential assembly being attached to a left sun gear of the direction control assembly and being meshed with a fifth carrier of the differential assembly, the fifth carrier also rotating counterclockwise at a predeterminined ratio with the direction control assembly input.
7. The infinitely variable motion control transmission including a differential assembly of claim 1 , the direction control assembly and the differential assembly being driven by an output shaft of the speed converter.
8. The infinitely variable motion control transmission including a differential assembly of claim 7 , the right differential output shaft being coupled to the output shaft of the speed converter by first and second brake mechanisms.
9. The infinitely variable motion control transmission including a differential assembly of claim 6 , the direction control assembly comprising a left sun gear of the direction control assembly being attached to or integral with the left sun output gear of the differential assembly.
10. The infinitely variable motion control transmission including a differential assembly of claim 5 , the differential assembly comprising a spur gear transgear assembly including a first carrier gear and a second carrier gear and the first left sun gear and second right sun gear of the differential assembly.
11. The infinitely variable motion control transmission including a differential assembly of claim 1 , the left differential output sleeve surrounding the right differential output shaft.
12. The infinitely variable motion control transmission including a differential assembly of claim 1 , the speed converter comprising an output shaft having an attached or integral race section surrounding the output shaft.
13. The infinitely variable motion control transmission including a differential assembly of claim 12 , the attached or integral race section of the output shaft of the speed converter having an associated driver.
14. The infinitely variable motion control transmission including a differential assembly of claim 12 , the attached or integral race section of the output shaft of the speed converter having an associated Sprag gear assembly forming a driver including the output shaft of the speed converter and attached or integral race section.
15. The infinitely variable motion control transmission including a differential assembly of claim 1 , the speed converter further comprising an output shaft having an attached or integral race section surrounding the output shaft.
16. The infinitely variable motion control transmission including a differential assembly of claim 15 , the attached or integral race section of the output shaft of the speed converter having an associated driver.
17. The infinitely variable motion control transmission including a differential assembly of claim 1 , the speed converter further comprising an input shaft having an associated drive gear coupled to the spur gear transgear shaft.
18. The infinitely variable motion control transmission including a differential assembly of claim 16 having first and second drivers associated with the attached or integral race section of the output shaft of the speed converter.
19. The infinitely variable motion control transmission including a differential assembly of claim 1 , the spur gear transgear assembly further comprising a left sun gear meshed to a planetary gear rotating freely around a pin.