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Onboard vapor recovery detection using pressure sensing means

  • US 5,992,395 A
  • Filed: 02/11/1998
  • Issued: 11/30/1999
  • Est. Priority Date: 05/17/1996
  • Status: Expired due to Term
First Claim
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1. An apparatus for dispensing fuel and detecting a vehicle having a vapor recovery system comprising:

  • a fuel dispenser configured to deliver fuel to a fuel tank of a vehicle;

    a vapor recovery system operatively associated with said fuel dispenser having a vapor path for removing fuel vapor expelled from the fuel tank of the vehicle during a fueling operation and a vapor recovery controller; and

    a pressure sensor associated with said vapor path for measuring pressure in said vapor path and providing a vapor signal to said vapor recovery controller;

    said controller adapted to determine whether or not the vehicle has an onboard vapor recovery system based on the pressure measured in said vapor path and control said vapor recovery system accordingly.

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