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2 219 381

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IPC

(21) (22)

Application

2001135717/06, 2001-12-25

(24)

Start date

2001-12-25

(22)

Actual filing date

2001-12-25

(45)

Published

2003-12-20

(72)

Inventor

Bogdanov V.O.Laptev A.V.Klochikhin N.V.Moshkin V.S.Okon'Skij A.B.Pyr'Ev A.A.Pjatkin V.A.Khaliulin A.G.Abramov V.I.Vasil'Kova A.F.Kravchenko T.A.Kulakov G.A.Makarichev G.M.

(73)

Holder

Zakrytoe Aktsionernoe Obshchestvo Kompanija Uralterminalmash"Otkrytoe Aktsionernoe Obshchestvo

HYDRAULIC CYLINDER Russian patent published in 2003 - IPC

Abstract RU 2219381 C2

FIELD: mechanical engineering. SUBSTANCE: invention relates to lifting and transportation machinery, namely, to double-acting hydraulic cylinders designed for displacement of single, particularly, second extensible section of multisection telescopic boom of crane-and-manipulator plant. Proposed hydraulic cylinder contains housing with welded-to bottom, detachable through cover and flanged end connector, one-sided hollow rod with piston and pin-type end connectors, supporting-and-sealing members of fixed and movable joints, mud scraper and working liquid feed channels with threaded connecting unions. Design of housing and piston with rod is optimized in hydraulic cylinder and takeoff of working liquid from piston and rod spaces is provided for successive operation of hydraulic cylinders of following single sections of telescopic boom. All loadbearing parts of hydraulic cylinder are made of medium-carbon low alloy steel strengthened by thermomechanical machining, and high quality modern supporting and sealing members are used for mating and sealing components of movable joints. EFFECT: simplified design, decreased overall dimensions. 8 cl, 15 dwg

Similar patents RU2219381C2

Title	Year	Author	Number
HYDRAULIC CYLINDER	2001	Bogdanov V.O. Laptev A.V. Klochikhin N.V. Moshkin V.S. Okon'Skij A.B. Pyr'Ev A.A. Pjatkin V.A. Khaliulin A.G. Abramov V.I. Vasil'Kova A.F. Kravchenko T.A. Kulakov G.A. Makarichev G.M.	RU2219384C2
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RU 2 219 381 C2

Authors

Bogdanov V.O.

Laptev A.V.

Klochikhin N.V.

Moshkin V.S.

Okon'Skij A.B.

Pyr'Ev A.A.

Pjatkin V.A.

Khaliulin A.G.

Abramov V.I.

Vasil'Kova A.F.

Kravchenko T.A.

Kulakov G.A.

Makarichev G.M.

Dates

2003-12-20—Published

2001-12-25—Filed