Power plants – Pressure fluid source and motor – Having condition responsive control in a system of distinct...
Patent
1984-06-05
1987-09-01
Look, Edward K.
Power plants
Pressure fluid source and motor
Having condition responsive control in a system of distinct...
60428, 60452, 60486, 60487, 60488, 417212, 417216, F16D 3102
Patent
active
046899553
ABSTRACT:
A vibration roller comprises a power limiting device (20) engaging the travelling lever (3), the vibration roller having a prime mover (1), a hydrostatic pump for the travelling drive, which hydrostatic pump is driven by the prime mover and arranged to be controlled by a travelling lever (3), and a vibration drive driven by the prime mover. The power limiting device comprises a stepped piston (27) slidingly movable in a stepped bore (24). The fluid pressure in the travelling drive and in the vibration drive engage the steps thereof. The stepped piston (27) is movable into the setting range of the travelling lever (3), by the sum of the fluid pressures, such that the maximum deflection of the travelling lever is limited to values, at which the total power consumption of the vibration roller does not exceed the limiting power of the prime mover.
REFERENCES:
patent: 2867091 (1959-01-01), Orloff et al.
patent: 3228184 (1966-01-01), Harbidge et al.
patent: 3847061 (1974-11-01), Ifield
patent: 3869223 (1975-03-01), Bosch
patent: 4174614 (1979-11-01), Dezelan
patent: 4544330 (1985-10-01), Schniederjan
Case Vibromax GmbH & Co KG
Look Edward K.
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