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Variable pilot pressure control for pilot valves

  • US 6,305,419 B1
  • Filed: 07/14/2000
  • Issued: 10/23/2001
  • Est. Priority Date: 07/14/2000
  • Status: Expired due to Term
First Claim
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1. A pilot pressure controller connected in a hydraulic circuit of an industrial machine having a pump driven by a power source, a proportional output valve for controlling pressure from said pump to a pilot valve, said proportional output valve providing pressure to the pilot valve as a function of an electric signal, and an electronic controller having an input connected to receive a signal which is a function of the horsepower demand on the power source and providing the electric signal to the proportional valve as a function of the signal received at the electronic controller input.

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