Retarding means for motor vehicles

Details Retarding means for motor vehicles Retarding means for motor vehicles

1979-10-30

1982-01-12

Braun, Leslie

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

744115, 74869, 192 4A, 192 13R, B60K 4106, F16H 5700

Patent

active

043099181

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 retardation of a vehicle, those friction brakes and/or clutches not in use at any time in establishing a particular 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.

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patent: 3038574 (1962-06-01), Roche
patent: 3110378 (1963-11-01), Qualman
patent: 3163270 (1964-12-01), Zingsheim
patent: 3444762 (1969-05-01), Golan et al.
patent: 3525275 (1970-08-01), Lemieux
patent: 3651904 (1972-03-01), Snoy et al.
patent: 3863739 (1975-02-01), Schaefer et al.
patent: 3994374 (1976-11-01), Gill
patent: 4050332 (1977-09-01), Taga
patent: 4085834 (1978-04-01), Kreitzberg
patent: 4093051 (1978-06-01), Kreitzberg

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