HYDRAULIC DRIVE OF LOPPING MACHINE Russian patent published in 1994 - IPC

Abstract RU 2005933 C1

FIELD: forestry machinery industry. SUBSTANCE: machine has pump 4, connected by hydraulic line through control distributor 6 with drive hydraulic motor 10 of winch 3. Additional pump 15 is connected to additional distributor 13, whose slide valve is three-position. Slide valve outlets are connected with control chambers of control distributor 6 by means of control hydraulic lines 11 and 12. Hydraulic drive is provided with additional hydraulic line with check valve 14. Hydraulic line is connected by means of hydraulic line 9 of winch drive idle running to control hydraulic line 11. EFFECT: higher efficiency. 1 dwg

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RU 2 005 933 C1

Authors

Zhujkov A.V.

Dates

1994-01-15—Published

1987-07-07—Filed