Pressure intensifier for fluids, particularly for hydraulic...

F - Mech Eng,Light,Heat,Weapons – 15 – B

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F15B 3/00 (2006.01)

Patent

CA 2211474

A pressure intensifier for fluids, particularly for hydraulic liquids, includes a piston/cylinder arrangement with a low pressure side provided with a low pressure connection and a high pressure side provided with a low pressure connection and a supply connection, as well as an intensifier piston constructed as a double diameter piston arranged between the low pressure side and the high pressure side. The pressure intensifier further includes a valve slide member which alternatingly connects the low pressure connection to a pressure source and a negative pressure source, wherein the control valve is connected through a control line to the piston/cylinder arrangement, so that the pressure in the control line acts on a first side of the valve slide member. The control valve is configured such that a constant force acts on a second side of the valve slide member.

Multiplicateur de pression pour fluides, notamment pour liquides hydrauliques, comprenant un ensemble piston/cylindre ayant un côté basse pression pourvu d'un raccord basse pression et un côté haute pression pourvu d'un raccord basse pression et d'un raccord d'alimentation. Le multiplicateur comprend également un piston multiplicateur construit comme un piston à double diamètre disposé entre le côté basse pression et le côté haute pression. Le multiplicateur de pression est aussi constitué d'un élément de vanne coulissant, qui branche alternativement le raccord basse pression à une source de pression et à une source de pression négative. La vanne de régulation est reliée à l'ensemble piston/cylindre à l'aide d'une conduite de commande, de sorte que la pression à l'intérieur du canal de commande agit sur un premier côté de l'élément de vanne coulissant. La vanne de régulation est réglée pour qu'une force constante agisse sur un deuxième côté de l'élément de vanne coulissant.

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