Stepless speed reducer

Details Stepless speed reducer Stepless speed reducer

1988-08-01

1990-01-23

Braun, Leslie A.

Machine element or mechanism

Elements

Gear casings

74720, F16H 4704

Patent

active

048950491

ABSTRACT:
A stepless speed reducer includes the mechanical power transmission lines for high speed and low speed, the two lines being selectively concluded to effect power transmission. When the working speed ratio comes near a predetermined critical speed ratio, the operation is maintained at the critical speed ratio while the pump motor for low speed is kept inoperative and no pressure difference exists between the transmission circuits, thereby transmitting power through the line for high speed.

REFERENCES:
patent: 3709061 (1973-01-01), Orshansky, Jr.
patent: 3897697 (1975-08-01), Chambers et al.
patent: 3969958 (1976-07-01), Miyao et al.
patent: 3988949 (1976-11-01), Weseloh et al.
patent: 3990327 (1976-11-01), Margolin
patent: 4184385 (1980-01-01), Maeda
patent: 4261226 (1981-04-01), Orshansky, Jr. et al.
patent: 4286477 (1981-09-01), Meyerle et al.
patent: 4304151 (1981-12-01), Meyerle et al.
patent: 4750381 (1988-06-01), Kita et al.
patent: 4776233 (1988-10-01), Kita et al.

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