Hydraulic machine having two cylinder capacities and a safety valve

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10697442
APP PUB NO 20170122285A1
SERIAL NO

15336352

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Importance

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Abstract

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The machine comprises distribution ducts connected to respective ones of first, second, and third enclosures (40, 42, 44), and a cylinder-capacity selector (21) suitable for being caused to take up a large cylinder capacity configuration in which the second enclosure (42) is connected to one of the main ducts (2), while the first and third enclosures (40, 44) are connected to the other main duct (1), and a small cylinder capacity configuration in which the second and third enclosures (42, 44) are connected to said one of the main ducts (2), while the first enclosure is connected to the other main duct (1). The machine further comprises a safety valve (150) having at least a first port (56) connected to said one of the main ducts (2), and a second port (58) connected to the third enclosure (44). Said safety valve is suitable, when the cylinder-capacity selector (21) is caused to go into the large cylinder capacity, for being caused to go into a first configuration that isolates the first and second ports (56, 58) from each other, and, when the cylinder-capacity selector is caused to go into its small cylinder capacity, for being caused to go into a second configuration that interconnects the first and second ports (56, 58).

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Patent Owner(s)

Patent OwnerAddress
POCLAIN HYDRAULICS INDUSTRIE60410 VERBERIE

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bonnard, Loic Verberie, FR 4 4
Costaz, Dominique Verberie, FR 8 10
Viard, Julien Verberie, FR 10 14

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