Hydraulic striking device

Details Hydraulic striking device Hydraulic striking device

1992-07-28

1994-01-18

Look, Edward K.

Power plants

Pressure fluid source and motor

With control means for structure storing work driving energy

173135, 173208, F16D 3102, B25D 900

Patent

active

052791203

ABSTRACT:
A hydraulic striking device requiring no complicated adjustment of the flow rate of hydraulic fluid from the hydraulic pressure source of a hydraulic construction machine, etc. and operable by utilizing the power unit of a variety of such hydraulic machines. The adjusting valve (8) is disposed inside the main body near the control valve (5) and used to restrict the flow of hydraulic fluid ejected from the upper piston chamber (16) and passed through the control valve (5) with respect to the pressure of the hydraulic fluid supplied into the upper chamber (12) before flown from the outlet (11) to control the pressure in the upper piston chamber (16). Thus, a nearly constant, appropriate operating pressure can automatically be maintained irrespectively of the flow rate of the hydraulic fluid supplied from outside.

REFERENCES:
patent: 1604011 (1926-10-01), Zimmermann
patent: 1629117 (1927-05-01), Penberthy
patent: 3608650 (1971-09-01), Matsusaka
patent: 4181183 (1980-01-01), Okada
patent: 4444274 (1984-04-01), Suwabe
patent: 4658913 (1987-04-01), Yantsen et al.
patent: 4784228 (1988-11-01), Ito
patent: 5064005 (1991-11-01), Krone

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