Machine element or mechanism – Gearing – Interchangeably locked
Patent
1997-01-15
1999-02-09
Marmor, Charles A.
Machine element or mechanism
Gearing
Interchangeably locked
92 68, 92 75, 92136, 91521, F16H 5900
Patent
active
058680357
ABSTRACT:
This electrohydraulic actuator comprises a pair of hydraulic rams (12, 13) and a rocker (14) integral in terms of rotation with an input shaft (7) of the barrel, the rams are arranged parallel with one another in such a way as to be able to control the rotation of the rocker to make it adopt predetermined angular positions corresponding to the gears (R, N, 1, 2, . . . ) selected and this actuator also comprises solenoid valves for controlling the rams. The rocker (14) extends transversely to the shaft (7) and its ends are designed to be able to interact with respective pistons (17, 18) of the rams (12, 13), each ram comprises three pistons (24, 25, 17; 26, 27, 18) which are coaxial and have different cross sections, arranged in chambers (28, 29) of corresponding cross sections formed in the body (11). This electrohydraulic actuator permits extremely quick and easy control of gear selection for a structure which is relatively simple and has a modest cost of manufacture.
REFERENCES:
patent: 3766835 (1973-10-01), Kobelt
patent: 4456217 (1984-06-01), Wingegeart et al.
Grabow Troy
Marmor Charles A.
S.A.M.M.-Societe d'Applications des Machines Motrices
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