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Fuel Fill Temperature Reduction Method Utilizing Peltier Devices Disclosure Number: IPCOM000240796D
Publication Date: 2015-Mar-03
Document File: 1 page(s) / 208K

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The Prior Art Database

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Fuel Fill Temperature Reduction Method Utilizing Peltier Devices

Vehicles sold worldwide typically contain a carbon canister that adsorbs refueling, diurnal and running loss vapors Onboard Refueling Vapor Recovery (ORVR) emissions are required in some markets such as North America. CARB regulates amount of permissible hydrocarbon emission during refueling. ORVR is a major factor in sizing canisters in the US market and soon will be for China with the advent of Beijing 6 emissions standards. The ORVR cycle is very specific in the US about the temperature of the fuel and the temperature of the test. This creates a baseline for use to test to and create a base amount of HC that will be created on a refueling event. The canister sizes used today in vehicles make it very difficult to supply adequate amount of purge air through the canister to meet the new LEVIII and Tier 3 emissions standards. Many dollars are being added to vehicles especially trucks to help the vehicle meet the standard.


Our new system utlises solid state Peltier devices to cool chillers around or internal to the fuel tank filler neck. A chilling element is wrapped around the filler neck. The peltier devices are mounted remotely and external to the fuel tank. By using a peltier device that could be triggered in multiple ways to cool the fuel, the temperature of the fuel is reduced which in turn reduces the fuel vaporization as it is being dispensed. As the dispensed fuel is cooled sufficient...