Hydraulic hand hammer
The casing (1) of the hammer contains a device (34) located in the zone of movement of the striker piston (4) which reduces the flow resistance of working medium reaching the return stroke chamber (5) of the piston. A spool valve (15) is installed in the hollow space of the casing between the end fa...
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Format: | Patent |
Sprache: | eng ; ita |
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Zusammenfassung: | The casing (1) of the hammer contains a device (34) located in the zone of movement of the striker piston (4) which reduces the flow resistance of working medium reaching the return stroke chamber (5) of the piston. A spool valve (15) is installed in the hollow space of the casing between the end face of a sleeve (10) and end face of the casing. The device (34) is in the form of a sleeve (35) which encloses the striker piston. |
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