SHUTOFF-AND-SAFETY DEVICE Russian patent published in 1997 - IPC

Abstract RU 2082904 C1

FIELD: drop-sided trucks timber loaders, construction manipulators and other machines; hydraulic drives of working equipment. SUBSTANCE: shutoff-and-safety device has housing 1 with bores in which plungers 2 and 3 of check valve 4 and safety valve 5 are installed. Inlet and outlet holes, 12 and 13, respectively, are connected with spaces 6,7,8,9 of valves 4 and 5 through channels 10 and 11. Device has pusher 15 and control space 16. Bore of safety valve 5 has step and groove forming additional space 21 to control plunger 3 of valve 5. EFFECT: improved reliability of operations. 1 dwg

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RU 2 082 904 C1

Authors

Abarinov V.N.

Gruzinov V.E.

Kozlov Ju.V.

Shubenkov B.I.

Kogan B.Kh.

Dates

1997-06-27—Published

1995-04-13—Filed