192 clutches and power-stop control – Clutches – Operators
Patent
1977-04-15
1978-05-02
Scott, Samuel
192 clutches and power-stop control
Clutches
Operators
74340, F16D 2310
Patent
active
040869938
ABSTRACT:
An improvement in a drive transmission for coupling an engine to a driven load at any selected one of a plurality of drive ratios which comprises a gear section having an input shaft, an output shaft, a plurality of gears and shift devices for interconnecting said gears in any of a plurality of predetermined relationships, a fluid pressure operated input clutch for coupling said gear section input shaft to said engine having an engaged position and a disengaged position, a fluid perssure operated output clutch for coupling said driven load and said gear section output shaft having an engaged position and a disengaged position and an automatic operating control for selectively applying fluid pressure to said output clutch. The improvement comprises an overspeed inhibitor coupled to the control and the output clutch for overriding the control by changing the pressure of fluid applied to the output clutch and apparatus responsive to the input shaft rotating above a predetermined or preselected rate for causing the overspeed inhibitor to override the control.
REFERENCES:
patent: 678418 (1901-07-01), Murphy
patent: 765561 (1904-07-01), Crowe
patent: 2089279 (1937-08-01), Loeffler
patent: 2301930 (1942-11-01), Cattaneo
patent: 2324830 (1943-07-01), Eaton
patent: 3407912 (1968-10-01), Moore
patent: 3926288 (1975-12-01), Nerstad
Caterpillar Tractor Co.
Pietruszka Carl F.
Scott Samuel
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