Engine on pulsed fuel additive concentrate dosing system and controller
AssigneeClean Diesel Technologies, Inc.
InventorsJames M. Valentine, Curtis J. Knapper
Life of this patent
Estimating the term…
Abstract
A safe, reliable system for automatically dosing diesel truck fuel tanks with a fuel additive is provided. The additive, such as a concentrated solution containing fuel borne catalyst (FBC), is fed by positive feed means in pulsed doses while the engine is on. The frequency and amount of FBC injection is controlled as a function of the time the engine is operated and predetermined values for rate of fuel consumption and intended additive concentrations in the fuel.
Claims17
An apparatus for automatically dosing a fuel additive into a fuel tank for supplying fuel to an engine, comprising:
- storage means for storing a fuel additive;
- conduit means for carrying fuel additive from the storage means to a fuel tank associated with the engine;
- positive feed means in communication with said conduit means to feed measured amounts of said fuel additive into said conduit means;
- sensing means to determine when the engine is on;
- and
- means for controlling the positive feed means in response to the engine being on to deliver measured doses of additive into the fuel for the engine at regular, predetermined timed intervals and continuing the operation of the positive feed means at said regular, predetermined timed intervals for the time the engine is on.
A method for automatically dosing a fuel additive into a fuel tank for supplying fuel to an engine, comprising:
- storing a fuel additive in a storage vessel having associated conduit means connecting the storage vessel and the fuel tank;
- sensing when the engine is on;
- and
- in response to the engine being on, positively feeding fuel additive from the storage vessel into the fuel tank in measured doses at regular, predetermined timed intervals and continuing introducing timed, measured doses for the time the engine is on.
A method for automatically dosing a fuel additive into a fuel tank for supplying fuel to an engine, comprising:
- storing a fuel additive in a storage vessel having associated conduit means connecting the storage vessel and the fuel tank;
- sensing when the engine is on;
- and in response to the engine being on, feeding fuel additive from the storage vessel into the fuel tank in measured doses at regular, predetermined timed intervals and continuing the operation of the positive displacement pump at regular, predetermined timed intervals for the time the engine is on.
Dependencies are inferred from the claim text.