Motor vehicles – Vehicle trains – Motorized trailer
Patent
1975-12-08
1977-06-07
Geoghegan, Edgar W.
Motor vehicles
Vehicle trains
Motorized trailer
180 66R, 60420, 60431, 60445, B62D 5904
Patent
active
040277380
ABSTRACT:
The present invention relates to an apparatus providing for the co-ordinated driving of a towing vehicle and a towed vehicle equipped with a hydrostatic driving system of its own. The respective driving wheels of the towed vehicle are each driven by a separate hydrostatic transmission and a variable output hydraulic pump coupled to a hydraulic motor which can be driven by output of said hydraulic pump and can be engaged with a driving wheel. The apparatus includes for each respective transmission control circuits having a control device mounted on the towing vehicle. The invention is particularly useful for a cross-country towing vehicle and a towed vehicle in the form of a heavy field artillery gun which for purposes of operating the hydrostatic transmissions is equipped with a reciprocating engine, for instance a gasoline engine, which actuates said transmissions via a dividing gear box.
REFERENCES:
patent: 3247919 (1966-04-01), Moon
patent: 3695373 (1972-10-01), Bostrom
patent: 3736732 (1973-06-01), Jennings et al.
patent: 3788063 (1974-01-01), Kempson et al.
patent: 3817341 (1974-06-01), Greene
AB Bofors
Geoghegan Edgar W.
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