Hydrodynamic variator of velocity having radial pistons

Details Hydrodynamic variator of velocity having radial pistons Hydrodynamic variator of velocity having radial pistons

1990-09-06

1993-07-20

Look, Edward K.

Power plants

Pressure fluid source and motor

Ram driven by fluid pumped from reservoir

60488, 60497, 91497, 92 121, 92 58, 92 72, 417219, F16D 3900

Patent

active

052282902

ABSTRACT:
The improved hydrodynamic variator of velocity comprises a pump (3) having radial pistons and a hydromotor (4) also having radial pistons. At least the pump is arranged with a variable eccentricity and there is provided a central body (56) the latter having frontal distributors (30 and 31) which are placed in communication with the radial cylindrical cavities respectively of the pump and the hydromotor by means of the openings of the conduits (32 and 33). By varying the eccentricity of the pump, the rate of flow of the liquid in the pump is varied, thus causing a variation in the number of turns of the hydromotor.

REFERENCES:
patent: 2237018 (1941-04-01), Tweedale
patent: 3190074 (1965-06-01), Johns
patent: 3404584 (1968-10-01), Trautmann
patent: 3654761 (1972-04-01), Eickmann
patent: 3892167 (1975-07-01), Becker
patent: 4109618 (1978-08-01), Daniels
patent: 4794756 (1989-01-01), Iseman
patent: 4982566 (1991-01-01), Kaler et al.

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