Combined drive and brake mechanism for a wheeled vehicle carriag

Motor vehicles – Power – Including traction motor of kind driven by noncompressible...

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60460, B60K 1714

Patent

active

043678068

ABSTRACT:
The mechanism comprises a hydraulic circuit having a power driven pump; a reservoir for hydraulic fluid, and a motor for each wheel or two or more coaxial wheels of the carriage. The motor has a movable driven member therein and ports for the infeed and outfeed of fluid therethrough. There are connecting means between the pump, the reservoir and the ports whereby the fluid can be circulated through the motor to drive the driven member thereof. There is also a connection between the driven member of the motor and the corresponding wheel or wheels whereby the motion of one is directly transmitted to the other and vice versa, depending on which is being driven at faster speed. In addition, there are means in the hydraulic circuit for varying the speed of the driven member, and means whereby the vehicle operator can control the speed varying means to adjust the rotational speed of the respective wheel or wheels of the carriage in relation to the speed of the vehicle.

REFERENCES:
patent: 1008202 (1911-11-01), Schmucker
patent: 2599450 (1952-06-01), Henning
Sperry Vickers "Industrial Hydraulics Manual" 1st Edition, 1970, Publishers: Sperry Rand Corp., Tory, Michigan 48084; pp. 9-11, 9-12, 9-13.

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