192 clutches and power-stop control – Transmission control and clutch control – Common control
Patent
1978-12-28
1981-06-30
Byers, Jr., Nile C.
192 clutches and power-stop control
Transmission control and clutch control
Common control
B60K 4122
Patent
active
042758041
ABSTRACT:
Controlling and operating device for motor-vehicle friction clutches between the engine and a manual change-speed gear, comprising a manually operated electric switch actuated with the gear-shift lever of the vehicle; a limit switch allowing the device to be rendered inoperative; a release mechanism operated by the clutch pedal; a hydro-pneumatic release unit including two coupled working cylinders of which respective pressure spaces are connected via duct elements to a cylinder of the clutch and via an electro-pneumatic valve to a source of a pressure medium; in its rest position the valve prevents communication between the source and the space of one of the cylinders and provides a different communication from the space of that cylinder to a retarding blow-off unit that forms part of the inventive device and communicates with the free atmosphere, while when the valve is in its operative position it opens the first-named communication and prevents the other; and an electrical circuit that serially connects the electric switch and the limit switch between an electric power source and an operating electromagnet of the valve. Three exemplary embodiments of the blow-off unit are disclosed.
REFERENCES:
patent: 2560870 (1951-07-01), Hulick
patent: 2637425 (1953-05-01), Long
patent: 2945100 (1960-07-01), Maurice
patent: 3061058 (1962-10-01), Barth
patent: 3204730 (1965-09-01), Alfieri
patent: 3228496 (1966-01-01), Riehl
patent: 3379291 (1968-04-01), Randol
patent: 3667577 (1972-06-01), Weymann
patent: 3756358 (1973-09-01), Espenschied
patent: 3910388 (1975-10-01), Moori
Szarka Istvan
Urbantsok Janos
Autoipari Kutato Intezet
Byers Jr. Nile C.
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