192 clutches and power-stop control – Elements – Engaging surfaces
Patent
1976-09-02
1979-02-13
O'Dea, William F.
192 clutches and power-stop control
Elements
Engaging surfaces
192107C, 192113A, F16D 1364
Patent
active
041390857
ABSTRACT:
A clutch of the single-plate dry-disc type is structured to include annular friction facings secured to opposite surfaces of a supporting plate of a clutch plate and a plurality of recesses or shallow grooves are defined in the surface of one of the annular friction facings. The shallow grooves extend from the inner periphery of the one annular friction facing and terminate short of the outer periphery thereof.
Accelerated air streams are introduced from the exterior through the fly wheel into the plurality of grooves so as to aid in separation of the friction facing of the clutch plate from the engaging surface of a fly wheel as a result of a hydrodynamic force created by the air streams. Furthermore, slots are defined in the surface of the friction facing in addition to the grooves so as to provide discharge passages for powder which has been produced due to wear or attrition of the friction facings.
REFERENCES:
patent: 384268 (1888-06-01), Nelson
patent: 2107954 (1938-02-01), Morton et al.
patent: 2516544 (1950-07-01), Breeze
patent: 3171527 (1965-03-01), Ott
patent: 3380566 (1968-04-01), Cook
patent: 3587803 (1971-06-01), Sugiura
patent: 3921777 (1975-11-01), Rist
patent: 4027758 (1977-06-01), Gustavsson et al.
Kanbe Yasuhide
Nakagawa Tadashi
Noguchi Mitsuyuki
Yamada Shigemichi
Joyce Harold
O'Dea William F.
Toyota Jidosha Kogyo Kabushiki Kaisha
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