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(19)

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2 010 917

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(51)

IPC

(21) (22)

Application

5051740/33, 1992-07-08

(22)

Actual filing date

1992-07-08

(45)

Published

1994-04-15

(72)

Inventor

Komarov Vladimir MikhajlovichDmitrevich Jurij VladimirovichKadomkin Viktor ViktorovichFrenkel' Boris EfimovichGrechushkin Boris AlekseevichOvchinnikov Nikolaj PavlovichAref'Ev Jurij PetrovichKostrubin Jurij Grigor'EvichBelikov Aleksandr PetrovichTikhonov Jurij Nikolaevich

(73)

Holder

HYDRAULIC HAMMER Russian patent published in 1994 - IPC

Abstract RU 2010917 C1

FIELD: building. SUBSTANCE: in hydraulic hammer possibility of striker impacts against end face cover of its body in case of changes in external loading conditions is avoided by selecting proper relation of geometrical dimensions of striker and working cylinder so that increase of striker speed during its idle upward travel in excess of rated value results in discharge of hydraulic accumulator of delivery line to the level, which ensures idle stroke of the next cycle at reduced speed. EFFECT: improved reliability and longer life of hydraulic hammer. 2 cl, 2 dwg

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RU 2 010 917 C1

Authors

Komarov Vladimir Mikhajlovich

Dmitrevich Jurij Vladimirovich

Kadomkin Viktor Viktorovich

Frenkel' Boris Efimovich

Grechushkin Boris Alekseevich

Ovchinnikov Nikolaj Pavlovich

Aref'Ev Jurij Petrovich

Kostrubin Jurij Grigor'Evich

Belikov Aleksandr Petrovich

Tikhonov Jurij Nikolaevich

Dates

1994-04-15—Published

1992-07-08—Filed