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Fluid supply systems

  • US 4,412,419 A
  • Filed: 09/25/1981
  • Issued: 11/01/1983
  • Est. Priority Date: 09/18/1978
  • Status: Expired due to Fees
First Claim
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1. A fluid supply system comprising a chamber having a portion for containing a working fluid, a portion for containing a gas for pressurizing the working fluid, a movable partition separating the fluid portion from the gas portion of the chamber, an inlet for the gas and an outlet for the working fluid, a member operable to close the inlet and carrying solid propellant charge means, and ignition control means for the solid propellant charge means, characterized in that the solid propellant charge means comprise a plurality of individual charges, and in that the ignition control means is operable to ignite each charge as and when required to produce a pressurized gas which enters the gas portion of the chamber and moves the partition in the chamber to pressurize the working fluid and expel the same through the outlet, the ignition control means comprising pulse generating means, counter means responsive to the output of the pulse generating means, gate means responsive to the output of the counter means, and ignition circuits responsive to the respective outputs of the gate means, whereby the solid propellant charges are ignited serially.

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