Process and apparatus for thawing jelled diesel fuel
OwnerDale A. Craddockinventor
Life of this patent
Estimating the term…
Abstract
Jelled diesel fuel from a truck or the like is pumped into a heating tank where is it heated by hot propylene glycol that has been heated by a burner and that is circulated through heat exchangers in the heating tank. The fuel is heated to a preselected temperature and then returned to the truck's fuel tanks. The fuel filter is removed and a similar shaped shell installed in place of the fuel filter and is pressurized with compressed air to blow jelled fuel out of the fuel lines and a new fuel filter is installed, preferably before the hot fuel is returned to the truck's tanks.
Claims20
An apparatus for thawing jelled diesel fuel comprising:
- a. a heating tank;
- b. means for imparting heat to said heating tank and the contents of said heating tank seated inside said tank;
- c. means for removing jelled diesel fuel from a target tank and transferring the jelled diesel fuel to said heating tank;
- and
- d. means for moving the fuel from said heating tank to the target tank after heating.
An apparatus for thawing jelled diesel fuel comprising:
- a. a heating tank
- b. at least one heat exchanger seated in said heating tank and operatively connected to a working fluid heated by a burner and circulated by means of a pump and connected means for controlling the temperature of fuel inside said heating tank;
- c. a pump and associated means for removing jelled diesel fuel from a target tank and transferring the jelled diesel fuel to said heating tank;
- and
- d. means for moving the fuel from said heating tank to the target tank after heating.
A process for thawing jelled diesel fuel in a motor vehicle and thereby restoring the motor vehicle to operating condition comprising the steps of:
- a. removing the jelled diesel fuel from a target tank and pumping the jelled diesel fuel to a heating tank;
- b. heating the jelled diesel fuel in said heating tank;
- and
- c. returning the now heated diesel fuel to said target tank.
Dependencies are inferred from the claim text.