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Electromagnetic actuator

  • US 4,458,487 A
  • Filed: 03/15/1982
  • Issued: 07/10/1984
  • Est. Priority Date: 10/31/1980
  • Status: Expired due to Fees
First Claim
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1. An electromagnetic actuator comprising:

  • an electromagnetic pump for continuously supplying a fluid from a first chamber to a second chamber in accordance with an output of a driving device;

    a passage interconnecting said first and second chambers;

    a responsive load means comprising a responsive member responsive to a pressure in said second chamber and a load driven by said responsive member, and operable for controlling the mechanical displacement of said load; and

    a flow-rate control means provided in said passage for maintaining the pressure in said second chamber at a determined value.

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