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2 142 077

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C1

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IPC

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Application

97121995/06, 1997-12-16

(24)

Start date

1997-12-16

(22)

Actual filing date

1997-12-16

(45)

Published

1999-11-27

(72)

Inventor

Red'Ko P.G.Ambarnikov A.V.Tychkin V.I.Rjabov V.M.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Mashinostroitel'Nyj Zavod

PUMP HYDRAULIC DRIVE Russian patent published in 1999 - IPC

Abstract RU 2142077 C1

FIELD: control systems of road-building machines, river transport, flying vehicles, etc. SUBSTANCE: pressure hydraulic line of high-pressure pump is connected with working ports of plunger-type hydraulic distributor; suction hydraulic line of hinge-pressure pump is made in form of bore in cylinder block where capacity regulator is mounted; capacity regulator is provided with working ports made in form of trapezium whose larger bases are directed towards closing of ports; pressure hydraulic line of low-pressure pump is connected with control chamber of displacing device and with control chambers of plunger-type hydraulic distributor and nozzles by means of throttling orifices; suction hydraulic line of low-pressure pump is made in form of circular bore located on outer surface of cylinder block around zone of maximum heat release of hydraulic drive. EFFECT: enhanced reliability. 3 dwg

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RU 2 142 077 C1

Authors

Red'Ko P.G.

Ambarnikov A.V.

Tychkin V.I.

Rjabov V.M.

Dates

1999-11-27—Published

1997-12-16—Filed

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