B - Operations – Transporting – 60 – T
Patent
B - Operations, Transporting
60
T
74/135
B60T 1/06 (2006.01) F16D 67/00 (2006.01) F16H 59/04 (2006.01) F16H 61/21 (2006.01)
Patent
CA 1118235
ABSTRACT A change-speed transmission in which gear-ratios are established by engagement of appropriate fluid-pressure operated friction brakes and clutches includes a manually- operable control for partially-engaging, to provide re- tardation of a vehicle, those friction brakes and/or clutches not in use at any time in establishing a parti- cular gear-ratio. The control operates valves which ensure that the rates of power absorption per unit friction area in all partially-engaged brakes and/or clutches is approximately equal and that the degree of retardation so provided decreases with each down-shift of the transmission.
338655
Miller Albert A.
Wilson Andrew G.
Ab Volvo
Swabey Ogilvy Renault
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