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Control valve for hydraulic braking system

  • US 5,346,289 A
  • Filed: 10/30/1992
  • Issued: 09/13/1994
  • Est. Priority Date: 10/30/1992
  • Status: Expired due to Fees
First Claim
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1. A braking system for a towed vehicle having brakes and configured to be coupled to a towing vehicle of the type having brakes and means for providing a brake signal indicative of brake actuation, the braking system comprising:

  • a hydraulic pump configured to receive the towing vehicle brake signal, for providing pressurized hydraulic fluid for the towed vehicle brakes in response to actuation of the towing vehicle brakes;

    hydraulic valve means operatively connecting the hydraulic pump to the towed vehicle brakes for hydraulic fluid flow; and

    a piston in the hydraulic valve means responsive to forces between the towed and towing vehicles, for modulating hydraulic fluid flow from the hydraulic pump to the towed vehicle brakes as a function of forces between the towed and towing vehicles.

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