Hydraulic exciter of vibrations for a vibratory compactor

Details Hydraulic exciter of vibrations for a vibratory compactor Hydraulic exciter of vibrations for a vibratory compactor

1974-11-25

1977-01-18

Maslousky, Paul E.

Power plants

Pressure fluid source and motor

Pulsator

91466, F15B 702

Patent

active

040032035

ABSTRACT:
A hydraulic exciter of vibrations for a vibratory compactor includes an exciter containing a piston which is movable to and fro in the cylinder and either the piston or the cylinder is connected to a compacting member. The movement of the piston in the cylinder is brought about either by an alternating source of hydraulic fluid pressure which forces fluid alternately into and out of the exciter cylinder to move the piston to and fro or by means of a uni-directional source of hydraulic fluid under pressure formed by a hydraulic pressure pump together with a control valve in between the pump and the exciter cylinder. The control valve is operated to switch the supply of hydraulic fluid to and fro in the cylinder from one side of the piston to the other to produce the relative to and fro movement of the piston in the cylinder. The control valve has means for varying its speed of operation to vary the frequency of the vibrations produced by the exciter.

REFERENCES:
patent: 1343836 (1920-06-01), Lewis
patent: 2350117 (1944-05-01), Kline
patent: 3266217 (1966-08-01), Van Den Dos
patent: 3762160 (1973-10-01), Kromer

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