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Hydraulic circuit device and hybrid drive system using that hydraulic circuit device

  • US 20060231339A1
  • Filed: 03/17/2006
  • Published: 10/19/2006
  • Est. Priority Date: 03/22/2005
  • Status: Active Grant
First Claim
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1. A hydraulic circuit device, comprising:

  • an oil pan at a lower portion of a case; and

    a valve body arranged in the oil pan, comprising;

    a valve hole;

    a drain port;

    a drain chamber, fluidly connected to the drain port and;

    a drain hole fluidly connecting the drain chamber with an external portion of the valve body, wherein the drain hole is arranged offset from the valve hole.

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