Compound hydrostatic transmission
阅读：44发布：2023-05-09
专利汇可以提供Compound hydrostatic transmission专利检索，专利查询，专利分析的服务。并且A compound hydrostatic transmission wherein a speed increaser transmission is added to a steering transmission, the steering transmission including end planetaries whose sun gears are driven by one source from the speed increaser transmission and whose ring gears are capable of being braked or being driven by another source from the speed increaser transmission in producing low speeds with heavy torque and high speeds with lower torques, respectively, the steering transmission, in between the end planetaries, having infinitely variable hydrostatic means and being capable of driving the end planetaries at the same speeds or at different speeds in a steering operation departing from the straight-away.，下面是Compound hydrostatic transmission专利的具体信息内容。
1. A compound transmission including a first transmission having a controllable input power and a controllable infinitely variable and reversable output power and a second transmission having controllable right and left infinitely variable and reversable power means and right and left gears driven by said output power, right and left planetary gearing, means driving the sun gears by said right and left gears controllably modified by said right and left power means, means driving the ring gears by said infinitely variable and reversable output power and right and left planet gears connected to drive right and left output shafts, respectively.
2. A transmission including a drive means, an infinitely variable and controllable transmission connected to said drive means, planetary gearing connected to said infinitely variable and controllable transmission, output means driven by said planetary gearing, and means selectively braking the ring gear of said planetary gearing or for driving said ring gear at controllable infinitely variable speeds.
3. A transmission as set forth in claim 2 wherein said infinitely variable and controllable transmission includes a fluid pump and motor units, said pump and motor being connected by closed fluid circuits, said pump and motor being reversible and at least said pump having means for varying the displacement of fluid to said motor.
4. A transmission as set forth in claim 3, wherein said planetary gearing includes: a first planetary gearing having a sun gear connected to said drive means and its ring gear connected to be driven by a motor unit, and a second planetary gearing having its sun gear driven by the planet gears of said first planetary gearing and the planet gears of said second planetary gearing driving said output means, and said means for braking or driving said ring gear driving the ring gear of said second planetary gearing.
5. A transmission as set forth in claim 4, wherein the means for driving said ring gear at controllable speeds, includes an infinitely variable and controllable pump and motor unit connected to said drive means.
6. A compound transmission including a first transmission having an input shaft and a controllable infinitely variable output shaft, and a second transmission having a dual drive from said first transmission with controllable infinitely variable transmission means between said dual drive, controlling an output means, one of said drives connected to said input shaft, and the other of said drives connected to said infinitely variable output shaft.
7. A compound transmission as set forth in claim 6, wherein the controllable and infinitely variable means of said first transmission and of said second transmission include; flow circuit connected fluid pump and motor units, at least said pump unit being controllable to vary its displacement of fluid to its motor unit.
8. A compound transmission as set forth in claim 7, wherein said infinitely variAble transmission means of said second transmission further includes, a first planetary gearing having its sun gear driven by said one drive from said input shaft and its ring gear driven by a motor unit, and a second planetary transmission having its sun gear driven by the planet gears of said first planetary gearing and its ring gear driven by the other of said drives of said first transmission, and output means driven by the planet gears of said second planetary gearing.
9. A compound transmission including, a first transmission including a power input shaft and an output shaft driven from said input shaft through the medium of controllable speed and torque variance means, said output shaft being capable of being braked without stopping said input shaft, and a second transmission having an input shaft and an output shaft driven from said input shaft through the medium of controllable speed and torque variance means operated by the interconnection of variable movable parts, a means driving certain of said parts by said input shaft of the first transmission, and means driving the other of said parts by the output shaft of said first transmission.
10. A transmission including, a power input; a shaft driven by said power input, and having right and left sun gears; right and left means connected to said shaft and controllable as to speed and torque for infinitely variable output; right and left ring gears connected to be driven by said infinitely variable output; right and left planet gears cooperating with said right and left ring gears and said right and left sun gears to form a first set of planetary gearing; a second set of right and left planetary gearing having their sun gears, respectively, driven by the planet gears of said right and left planet gears of said first set of planetary gearing; right and left planet gear supports for the planet gears of said second set of planetary gearing; means for connecting said planet gearing support to right and left output shafts, and ring gears for said second set of planetary gearing.
11. A transmission as set forth in claim 10, including means driven by said power input controllable as to speed and torque, and means connecting said controllable means for driving said ring gears of said second planetary gearing.
12. A transmission as set forth in claim 11, including means for selectively braking said connecting means to hold the ring gears of said second planetary gearing stationary.
13. A compound transmission particularly useful for steering vehicles including, a speed increaser transmission, a steering transmission including end planetary gearing, the sun gears of said end planetary gearing being driven by one source form the speed increaser transmission, the ring gears of said end planetary gearing being selectively capable of being braked or being driven by another source from the speed increaser transmission, the planet gears of said end planetary gearing being connected to output shafts, and the steering transmission in between the end planetaries having infinitely variable and controllable means connected to modify the drive from one of said sources and being capable of driving the end planetaries at the same speed or at different speeds for a turning operation.
14. A vehicle transmission including, a first transmission having an input shaft, infinitely variable and controllable pump and motor units connected to be driven by said input shaft, said pump and motor units being interconnected by closed fluid circuits, a planetary gearing having its sun gear connected to be driven by said input shaft, its ring gear connected to be driven by said motor unit, and a control shaft connected to be driven by the planet gears of said planetary gearing and a second transmission having a drive shaft, right and left sun gears driven by said input shaft, right and left infinitely variable and controllable pump and motor units driven by said input shaft, each pump and motor unit being interconnected by a closed fluid cIrcuit, a right and left ring gear respectively connected to the right and left motor unit, planet gears cooperating with said right and left sun gears and said right and left ring gears to form a first right and left planetary gearing, a second right and left planetary gearing having its sun gears respectively driven by the planet gears of said right and left first planetary gearing, right and left ring gears driven by said control shaft, and planet gears for said second planetary gearing and connected to right and left output shaft.
15. A vehicle transmission as set forth in claim 13, including a brake for selectively stopping said control shaft.
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