Transmission with sump oil level responsive controls

Details Transmission with sump oil level responsive controls Transmission with sump oil level responsive controls

1976-12-20

1978-02-28

Gerin, Leonard H.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74868, 137386, 137393, B60K 4104, F16K 2118

Patent

active

040759121

ABSTRACT:
A multiratio powershift transmission having automatic speed and torque demand responsive shift controls providing a normal shift program when the sump oil level is in the normal operating range. When the sump oil level is in an abnormal operating range, either lower or higher than the normal operating range, a sump oil level responsive control acts on the shift controls to provide an abnormal shift program preventing drive in the highest gear ratio and providing normal operation in the other gear ratio.

REFERENCES:
patent: 3020924 (1962-02-01), Davies
patent: 3174503 (1965-03-01), Absolon
patent: 3269404 (1966-08-01), Lebow
patent: 3335746 (1967-08-01), Lebow
patent: 3429323 (1969-02-01), Mott
patent: 3561465 (1971-02-01), DeGraaf
patent: 3587355 (1971-06-01), Schafer
patent: 3590843 (1971-07-01), Meyer
patent: 3691872 (1972-09-01), Schaefer et al.
patent: 3703907 (1972-11-01), Richards

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