Multiple stage passive variable displacement vane pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9206800
APP PUB NO 20130309113A1
SERIAL NO

13896573

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention is a multiple stage variable displacement vane pump comprising a pressure regulating spring guide. A first spring and a second spring may be controlled by said pressure regulating spring guide. The present invention does not require a solenoid or electronic control. Control of flow and speed is achieved through operable of the pressure regulating spring guide that causes the first spring and second spring to be operable in relation to one another, but for the first spring and the second spring to be operable independently of each other. The springs may be positioned to be inline in relation to each other. Rotation of a slide and pressure exerted thereby upon the pressure regulating spring guide may create a first spring regulation stage and a second spring regulation stage.

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Patent Owner(s)

  • MAGNA POWERTRAIN INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rago, Guiseppe Mississauga, CA 2 82

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