Machine element or mechanism – Elements – Gear casings
Patent
1989-03-27
1989-12-12
Diehl, Dwight G.
Machine element or mechanism
Elements
Gear casings
74199, 74681, 74796, F16H 3700, F16H 3706
Patent
active
048859559
ABSTRACT:
A multimode infinitely variable traction roller transmission including a toroidal traction roller transmission for infinitely varying the transmission ratio in each of the modes. Power is transmitted from an input shaft to the planet carrier of a planetary transmission whose ring is associated with the output shaft of the transmission and through the toroidal traction roller transmission to the sun of the planetary transmission selectively by way of a chain gear or spur gear transmission provided with clutches for selective engagement thereof, that is, for rotation of the sun in one or the opposite direction. A brake structure is provided for locking the planet carrier in one of the transmission modes. Output shaft speed is increased by increasing output speed of the infinitely variable transmission in the first mode (direct mode), it is further increased by subsequently decreasing the output speed of the infinitely variable transmission in the second mode (inverse regeneration mode) and it is then further increased by again increasing the output speed of the infinitely variable transmission in the third mode (split torque mode). The changeover is smooth thereby providing for a wide ratio range infinitely variable transmission.
REFERENCES:
patent: 2923177 (1960-02-01), Winchester
patent: 3739658 (1973-06-01), Scheiter
patent: 4297918 (1981-11-01), Perry
Diehl Dwight G.
Excelermatic Inc.
Ta Khoi Q.
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