US 3,945,452 AGranted

Drive for four-wheel driven motor vehicles

OwnerHermann Klaueinventor

Life of this patent

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Abstract

In a vehicle a drive unit adapted to drive four wheels, the wheels being driven by axle shafts. The drive unit comprises a change speed transmission with its longitudinal axis extending lengthwise to the vehicle longitudinal direction. The drive unit further comprises a transfer gear assembly connected to the output of the transmission and to two transfer shafts which extend parallel to the vehicle longitudinal direction. The drive unit further comprises differential gears driven by the transfer shafts and driving the axle shafts. A housing encloses commonly the change speed transmission, the transfer gear assembly, at least one of the transfer shafts and at least one of the differential gears. The vehicle may be equipped with a starting device attached to the drive unit and employing a brake assembly which may be watercooled.

Claims13

Dependent claims

In a vehicle with a chassis frame, a drive unit adapted to drive four wheels, the wheels being driven by axle shafts arranged transversely relative to the vehicle longitudinal direction, characterized by the combination of:

the drive unit comprising a change speed transmission with its longitudinal direction extending lengthwise to the vehicle longitudinal direction,
the drive unit further comprising a transfer gear assembly connected to the output of said transmission and to two transfer shafts, the transfer gear assembly being arranged in the vehicle with its transfer shafts extending parallel to the vehicle longitudinal direction,
the drive unit further comprising differential gear driven by said transfer shafts and driving said axle shafts,
a housing suspended on said chassis frame, said housing commonly enclosing said change speed transmission, said transfer gear assembly, at least one of said transfer shafts and at least one of said differential gears,
a starting device between the engine and the drive unit, the starting device comprising a brake assembly arranged outwardly of the housing and having a rotating member drivingly connected with a member of said transmission.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 05/356,208Filed 1 May 1973 · continuation in part
Priority: CH 13538/7116 Sep 1971
Granted: 23 Mar 1976
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

F16H 37/046
Change gear transmissions in group arrangement: with an additional planetary gear train, e.g. creep gear, overdrive
B60K 17/02
Arrangement or mounting of transmissions in vehicles: characterised by arrangement, location, or kind of clutch
B60K 17/36
Arrangement or mounting of transmissions in vehicles: for driving tandem wheels
B60T 1/062
Acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels: acting on transmission parts