Spool valve

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10633829
APP PUB NO 20180298587A1
SERIAL NO

15766673

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Importance

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Abstract

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A spool valve includes a valve block; a first spool, which is mounted onto one side on the inside of the valve block so as to be moved forward and backward in the lengthwise direction and includes a first notch formed on the outer circumferential surface, for controlling the connection between a first pump flow path and a first cylinder flow path through the first notch which is aligned with the first pomp flow path and the first cylinder flow path formed on the inside of the valve block, when moved according to a change in stroke; and a second spool, which is mounted onto the other side on the inside of the valve block so as to be moved forward and backward in the lengthwise direction and includes a second notch formed on the outer circumferential surface, for controlling the connection between a second cylinder flow path and a first tank flow path through the second notch which is aligned with the second cylinder flow path and the first tank flow path formed on the inside of the valve block, when moved according to a change in stroke.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
VOLVO CONSTRUCTION EQUIPMENT ABBOLINDERVÄGEN 5 63185 ESKILSTUNA 63185

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kang, Min Heuk Gyeongsangnam-do, KR 1 2
Kim, Jin Wook Gyeongsangnam-do, KR 126 2596

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