Continuously engaged geared automatic transmission with controlling brakes

An automatic variable speed transmission, comprising:

• an input shaft (12) with a first section (12A) and a second section (12B) for receiving rotational input;
• an input sun gear (14) integrally formed between said first section (12A) and said second section (12B) of said input shaft to enable simultaneous rotation with said input shaft;
• a first carrier (22) coaxially mounted on said first section (12A) of said input shaft to enable independent rotation about said input shaft (12);
• a second carrier (28) having a hollow cylinder part (26) and being coaxially mounted said second section (12B) of said input shaft to enable independent rotation about said second section;
• a plurality of locking pins (32A), (32B) secured to and interlinking said first and second carriers (22), (28) to enable simultaneous rotation of said first and second carriers (22), (28);
• a plurality of first differential gears (36) with each said first differential gear (36A) being rotatably mounted on each said locking pin (32AA) and with each said first differential gear (36A) being meshed with said input sun gear (14);
• a low speed ring gear (46) rotatably mounted on said hollow cylinder part (26) and being meshed with each said first differential gear (36A);
• a plurality of second differential gears (42) with each said second differential gear (42A) being rotatably mounted on each said locking pin (32BB) and with each said second differential gear being meshed with each said first differential gear (36A);
• a reverse rotation ring gear (52) rotatably mounted on said first section (12A) of said input shaft and being meshed with each said second differential gear (42A);
• an output shaft (30) integrally formed with said hollow cylinder part (26) of said second carrier (28);
• a low speed brake means (60) for applying a braking force to said low speed ring gear (46) to provide a forward driving;
• an interlocking means (66) for directly coupling the rotation of said input shaft (12) to said reverse gear (52) so that they have a difference in rotation between them or they rotate simultaneously to provide a medium and a high speed driving;
• and
• a reverse rotation brake means (64) for applying a braking force to said reverse rotation ring gear (52) to provide a reverse driving.

An automatic variable speed transmission, comprising:

• an input shaft (12) with a first section (12A) and a second section (12B) for receiving rotational input;
• an input sun gear (114) integrally formed between said first section (12A) and said second section (12B) of said input shaft to enable simultaneous rotation with said input shaft;
• a first carrier (22) coaxially mounted on said first section (12A) of said input shaft near said input shaft near said input sun gear (114) to enable independent rotation about said input shaft (12);
• a second carrier (28) having a hollow cylinder part (26) and being coaxially mounted on said second section (12B) of said input shaft to enable independent rotation about said second section;
• a plurality of locking pins (132A), (132B) secured to and interlinking said first and second carriers (22), (28) to enable simultaneous rotation of said first and second carriers (22), (28);
• a plurality of first differential gears (136) with each said first differential gear (136A) being rotatably mounted on each said locking pin (132AA) and with each said first differential gear (136A) being meshed with said input sun gear (114);
• a low speed ring gear (146) rotatably mounted on said first section (12A) of said input shaft and being meshed with each said first differential gear (136);
• a plurality of second differential gears (142) with each said second differential gear (142A) being rotatably mounted on each said locking pin (132BB) and with each said second differential gear (142A) being meshed with each said first differential gear (136A);
• a reverse rotation ring gear (152) rotatably mounted on said hollow cylinder part (26) of said second carrier (28) and being meshed with each said second differential gear (142A);
• an output shaft (30) integrally formed with said hollow cylinder part (26) of said second carrier (28);
• a low speed brake means (160) for applying a braking force to said low speed ring gear (146) to provide a forward driving;
• an interlocking means (66) for directly coupling the rotation of said input shaft (12) to said low speed ring gear (146) so that they have a difference in rotation between them or they rotate simultaneously to provide a medium and a high speed driving;
• and
• a reverse rotation brake means (164) for applying a braking force to said reverse rotation ring gear (152) to provide a reverse driving.

An automatically variable transmission (10) comprising:

• an input shaft (12) having a first section (12A) and a second section (12B) for receiving rotational driving force;
• an input sun gear (14) is mounted on said input shaft (12) proximate said second section (12B);
• a hollow control shaft (16) coaxially and rotatably positioned on said input shaft (12) and having a first end (16A) and a second end (16B);
• a sun gear (18) positioned at said first end (16A) of said control shaft (16);
• a first carrier (22) coaxially and rotatably mounted on said control shaft (16) proximate said sun gear (18);
• a second carrier (28) coaxially and rotatably mounted on said input shaft with said second carrier (28) terminating in an output shaft (30);
• a plurality of first locking pins (32A) and a plurality of second locking pins (32B) with each locking pin secured to and interconnecting said carriers (22), (28) such that, in use, said carriers (22), (28) simultaneously rotate about said hollow control shaft (16) and said input shaft (12), respectively;
• a low speed ring gear (46) rotatably mounted on said output shaft (30);
• a plurality of first differential gears (36) with each said first differential gear being rotatably mounted on a first locking pin (32AA) of said plurality of first locking pins (32A) with each said first differential gear (36A) being in mechanical communication with said input sun gear (14) and said low speed ring gear (46);
• a reverse rotation ring gear (52) rotatably mounted on said hollow control shaft (16);
• a plurality of second differential gears (42) with each said second differential gear being rotatably mounted on a second locking pin (32BB) of said plurality of second locking pins (32B) and with each said second differential gear (42A) being in mechanical communication with said reverse rotation ring gear (52), said sun gear (18) and with a first differential gear of said plurality of first differential gears;
• a low speed brake means (60) for applying in use rotational resistance to said low speed ring gear (46) sufficient to stop said low speed ring gear (46) from rotation such that said output shaft (3) rotates at a low speed;
• a medium speed brake means (62) for applying in use rotational resistance to said control shaft (16) sufficient to stop said control shaft (16) from rotation such that said output shaft (30) rotates at a medium speed;
• and
• an interlocking means (66) for locking together said input shaft (12) and said hollow control shaft (16) to enable in use said output shaft and said input shaft rotate at the same speed.

An automatically variable transmission (10) comprising:

• an input shaft (12) having a first section (12A) and a second section (12B) for receiving rotational driving force;
• an input sun gear (14) is mounted on said input shaft (12) proximate said second section (12B);
• a hollow control shaft (16) coaxially and rotatably positioned on said input shaft (12) and having a first end (16A) and a second end (16B);
• a sun gear (18) positioned at said first end (16A) of said control shaft (16);
• a first carrier (22) coaxially and rotatably mounted on said control shaft (16) proximate said sun gear (18);
• a second carrier (28) coaxially and rotatably mounted on said input shaft with said second carrier (28) terminating in an output shaft (30);
• a plurality of first locking pins (32A) and a plurality of second locking pins (32B) with each locking pin secured to and interconnecting said carriers (22), (28) such that, in use, said carriers (22), (28) simultaneously rotate about said hollow control shaft (16) and said input shaft (12), respectively;
• a low speed ring gear (46) rotatably mounted on said output shaft (30);
• a plurality of first differential gears (36) with each said first differential gear being rotatably mounted on a first locking pin (32AA) of said plurality of first locking pins (32A) with each said first differential gear (36A) being in mechanical communication with said input sun gear (14) and said low speed ring gear (46);
• a reverse rotation ring gear (52) rotatably mounted on said hollow control shaft (16);
• a plurality of second differential gears (42) with each said second differential gear being rotatably mounted on a second locking pin (32BB) of said plurality of second locking pins (32B) and with each said second differential gear (42A) being in mechanical communication with said reverse rotation ring gear (52), said sun gear (18) and with a first differential gear of said plurality of first differential gears;
• a low speed brake means (60) for applying in use rotational resistance to said low speed ring gear (46) sufficient to stop said low speed ring gear (46) from rotation such that said output shaft (30) rotates at a low speed;
• a medium speed brake means (62) for applying in use rotational resistance to said control shaft (16) sufficient to stop said control shaft (16) from rotation such that said output shaft (30) rotates at a medium speed;
• a reverse rotation brake means (64) for applying in use rotational resistance to said reverse rotation ring gear (52) sufficient to stop said reverse rotation ring gear (52) from rotation such that said output shaft rotates in a rotational direction opposite to that of said input shaft;
• and
• an interlocking means (66) for locking together said input shaft (12) and said hollow control shaft rotate at the same speed.

An automatically variable transmission (10) comprising:

• an input shaft (12) for receiving rotational driving force;
• an input sun gear (114) mounted on said input shaft (12);
• a first carrier (22) coaxially and rotatably mounted on said input shaft (12);
• a second carrier (28) coaxially and rotatably mounted on said input shaft with said second carrier (28) terminating in an output shaft (30);
• a plurality of first locking pins (132A) and a plurality of second locking pins (132B) with each locking pin secured to and interconnecting said first and second carriers (22), (28), respectively, such that, in use, said carriers (22), (28), simultaneously rotate about said input shaft (12);
• a low speed ring gear (146) rotatably mounted on said input shaft (12);
• a plurality of first differential gears (36) with each said first differential gear being rotatably mounted on a first locking pin (132AA) of said plurality of first locking pins (132A) with each said first differential gear (136A) being in mechanical communication with said input sun gear (114) and said low speed ring gear (146);
• a reverse rotation ring gear (152) rotatably mounted on said output shaft (30);
• a plurality of second differential gears (142) with each said second differential gear (142A) being rotatably mounted on a second locking pin (132BB) of said plurality of second locking pins (132B) and with each said second differential gear (142A) being in mechanical communication with said reverse ring gear (152) and with a first differential gear (136A) of said plurality of first differential gears (136);
• a low speed brake means (160) for applying in use rotational resistance to said low speed ring gear (146) sufficient to stop said low speed ring gear (146) from rotation such that said output shaft (30) rotates at a low speed;
• a reverse rotation brake means (164) for applying in use rotational resistance to said reverse rotation ring gear (152) sufficient to stop said reverse rotation ring gear (152) from rotation such that said output shaft rotates in a rotational direction opposite to that of said input shaft;
• and
• an interlocking means (66) for locking together said input shaft (12) and said low speed ring gear (146) to enable in use said output shaft and said input shaft rotate at the same speed.