Duel fuel selection and blending injectors on internal combustion engines

• US 20050072384A1
• Filed: 04/14/2003
• Published: 04/07/2005
• Est. Priority Date: 04/14/2003
• Status: Abandoned Application

• Current Assignee: Amanda Hart, Guy A. Pinson, Kreg Hadley, Myranda Fontenot
• Original Assignee: Amanda Hart, Guy A. Pinson, Kreg Hadley, Myranda Fontenot
• Inventors: Hart, Amanda, Fontenot, Myranda, Hadley, Kreg, Pinson, Guy A.
• Application Number:
  US10/413,409
• Publication Number:
  US 20050072384A1
• Time in Patent Office: Days
• US Class Current: 123/1.A
• CPC Class Codes: F02D 19/0655 at least one fuel being an alcohol, e.g. ethanol F02D19/084 takes precedence
• CPC Class Codes: F02D 19/0676 Multi-way valves; Switch-over valves
• CPC Class Codes: F02D 19/081 Adjusting the fuel composition or mixing ratio; Transitioning from one fuel to the other
• CPC Class Codes: F02M 37/0023 Valves in the fuel supply and return system
• CPC Class Codes: F02M 37/0064 for engines being fed with multiple fuels or fuels having special properties, e.g. bio-fuels; varying the fuel composition controlling engines working with pluralities of fuels F02D19/06
• CPC Class Codes: F02M 43/00 Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
• CPC Class Codes: Y02T 10/30 Use of alternative fuels, e.g. biofuels

Abstract

More efficient engines produce about 10% more horsepower per compression ratio number increase. Until now, these engines required premium fuel which costs $0.08-$0.16 per gallon more. Our idea is to use a blend of fuels, where 87-octane gasoline or diesel is the primary fuel used under light loads and 10% ethanol (EtOH)/90% gas or diesel is used under heavy loads. This will reduce fuel costs under light loads and the EtOH/gas or diesel will reduce emissions and prevent toxic chemicals in premium fuels. Fuel blending can also be used in large diesel trucks or off road equipment to bring those engines into compliance with future environmental laws. Our experiments verified a 30% reduction in carbon monoxide. Required use of 10% EtOH/90% gas will reduce lawn mower emissions 30% and result in lower ozone concentrations. Manufacturers have already approved the use of this fuel in their products.

Claims

1. Lower emissions

2. Lower dependence on foreign oil

3. Renewable fuel

4. Fewer emissions controls on auto

5. Use EtOH/gas in lawn mowers to reduce emissions and city smog

6. Save $0.08/gallon on fuel to consumer

Note:

On modified lawn mower 10% EtHO/90% gas will be used at all times for a reduction of 27% emission of smog in cities.

Idea Notebook Reference #1

Apr. 9,2003