Fluidic transmission controller

Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position

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Details

74869, 74864, 192 357, 137814, B60K 4110, B60K 4122, F15C 112

Patent

active

044944225

ABSTRACT:
A transmission controller that includes a series of fluidic comparators receiving power signals from selected ports in a manually-actuable range selector valve. Hydraulic signals representing engine throttle position and transmission output speed are beamed against each comparator main flow stream to switch the flow between a primary collector port and alternate collector port. Comparator outputs are amplified and applied to the end faces of spool valves that provide hydraulic actuator force for the transmission clutches.

REFERENCES:
patent: 2052869 (1936-09-01), Coanda
patent: 3683721 (1972-08-01), Uozumi et al.
patent: 3842862 (1974-10-01), O'Keefe
patent: 3888143 (1975-06-01), Kolehmainen et al.
patent: 3895547 (1975-07-01), Murakami
patent: 4246990 (1981-01-01), Strantz
patent: 4291595 (1981-09-01), Jelaca
Belsterling, C. A., "Fluidic Systems Design", John Wiley and Sons, New Yo 1971, pp. 44-47 & 59-60.

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