Stepless composite hydrostatic-mechanical transmission

Details Stepless composite hydrostatic-mechanical transmission Stepless composite hydrostatic-mechanical transmission

1978-12-20

1981-12-08

Braun, Leslie

Machine element or mechanism

Elements

Gear casings

74674, F16H 4704

Patent

active

043041515

ABSTRACT:
A composite transmission with power branching between a hydrostatic transmission and a mechanical summing transmission in which the hydrostatic transmission has a variable displacement unit. The input shaft is connected to the variable displacement unit and to a ring gear on the four-shaft summing transmission of which the ring gear and sun gear are selectively connectible by respective clutches to the constant displacement hydraulic unit. The planet carrier of the summing transmission is connected to the output shaft. The output shaft can also be directly coupled to the input shaft by a clutch and a further planetary can be provided between the fourth shaft of the summing transmission and the output shaft.

REFERENCES:
patent: 3433095 (1969-03-01), Tuck
patent: 3580107 (1971-05-01), Orshansky
patent: 3626787 (1971-12-01), Singer
patent: 3733931 (1973-05-01), Nyman et al.
patent: 3786696 (1974-01-01), Aleem
patent: 3855879 (1974-12-01), DeLalio
patent: 3884095 (1975-05-01), Miyao et al.
patent: 3979972 (1976-09-01), Sakai et al.
Uberlagerungsantriebe, Jean Thoma, pp. 123-126, 4/1971.

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