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Title: Diesel fuel burner for diesel emissions control system

Abstract

A burner for use in the emissions system of a lean burn internal combustion engine. The burner has a special burner head that enhances atomization of the burner fuel. Its combustion chamber is designed to be submersed in the engine exhaust line so that engine exhaust flows over the outer surface of the combustion chamber, thereby providing efficient heat transfer.

Inventors:
;
Publication Date:
Research Org.:
Southwest Research Institute, San Antonio, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175714
Patent Number(s):
7,032,376
Application Number:
10/685,553
Assignee:
Southwest Research Institute OSTI
DOE Contract Number:
AC36-98G010337
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS

Citation Formats

Webb, Cynthia C., and Mathis, Jeffrey A.. Diesel fuel burner for diesel emissions control system. United States: N. p., 2006. Web.
Webb, Cynthia C., & Mathis, Jeffrey A.. Diesel fuel burner for diesel emissions control system. United States.
Webb, Cynthia C., and Mathis, Jeffrey A.. Tue . "Diesel fuel burner for diesel emissions control system". United States. doi:. https://www.osti.gov/servlets/purl/1175714.
@article{osti_1175714,
title = {Diesel fuel burner for diesel emissions control system},
author = {Webb, Cynthia C. and Mathis, Jeffrey A.},
abstractNote = {A burner for use in the emissions system of a lean burn internal combustion engine. The burner has a special burner head that enhances atomization of the burner fuel. Its combustion chamber is designed to be submersed in the engine exhaust line so that engine exhaust flows over the outer surface of the combustion chamber, thereby providing efficient heat transfer.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 25 00:00:00 EDT 2006},
month = {Tue Apr 25 00:00:00 EDT 2006}
}

Patent:

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  • A self-energizing burner control system for burner means is described having a pilot burner and a main burner. It includes: thermoelectric generator means responsive to a flame from the pilot burner to generate a direct current potential; fuel valve means for controlling fuel to the main burner; and solid state switch means and the fuel valve means connected in series to the direct current potential. It also includes oscillator means including connection means connecting the oscillator means to the direct current potential to energize the oscillator means to produce an alternating current output voltage; voltage step-up means having an inputmore » responsive to the oscillator means output voltage, and an output connected to rectifier and capacitor means to provide a direct current power supply; and solid state temperature control means energized from the direct current power supply means. The solid state temperature control means include a temperature sensor and the temperature control means having an output connected to the solid state switch means. The solid state temperature control means controls the solid state switch means to operate the valve means.« less
  • The transfer of power developed in an internal combustion engine, connected to a variable ratio hydraulic transmission (including a hydraulic pump, or compressor, in a hydraulic circuit with a hydraulic motor) is controlled by obtaining signals representative of engine controller position, engine output torque (that is, transmission input torque), transmission output torque, engine speed, and effective ratio of speed (or torque) transmitted by the transmission from the engine to the transmission output. A control unit accepts all the foregoing parameters, and logically combines the parameters to provide an output to control the transmission ratio and the flow of hydraulic fluidmore » in the hydraulic transmission.« less
  • This patent describes in a fuel burner control system, a burner; valve means controlling the flow of fuel to the burner; an igniter for igniting the fuel at the burner, means for sensing flame at the burner; a circulator blower for distributing air; heated by the flame means for establishing a call for heat; and means responsive to a sensed flame during a time when there is no call for heat for effecting energizing of the circulator blower.
  • A burner control system is described for insuring constant volume flow of liquid fuel, irrespective of viscosity changes for the fuel. The system includes: a fuel supply tank bearing liquid fuel, a burner nozzle, a burner nozzle fuel supply line connecting the tank to the nozzle, a fuel return line connecting the nozzle back to the tank for returning excess fuel, first and second positive displacement fuel pumps in series and in order within the fuel supply line, branch lines within the fuel supply line downstream of the second fuel pump, separate, identical first and second variable orifices separately positionedmore » within the branch lines, respectively, each variable orifice having an inlet connected to a respective branch line, the first orifice having an outlet connected to the nozzle and the second orifice having an outlet connected to the return line, means responsive to the pressure at the discharge side of the second pump for controlling the discharge pressure of the first pump, means responsive to the discharge pressure of the first variable orifice for controlling the discharge pressure of the second variable orifice, and means for mechanically linking the separate variable orifices for controlling the variable orifices such that as one opens the other closes; and wherein each of the variable orifices includes a control rod for varying the opening size of each orifice, and the means mechanically linking the separate variable orifices comprises a means for mechanically linking the rods to variably position the control rods such that as one orifice opens, the other closes, and vice versa.« less
  • A fuel burner control system is described comprising: valve means for controlling the flow of fuel to a burner; a resistive heater element connected between first and second terminals and disposed for igniting fuel emanating from the burner; isolation transformer means comprising a heater secondary winding connected to the first and second terminals and adapted to provide heating current to the heater element; start-up means for opening the valve means to provide fuel to the burner for ignition by the heater element; flame sensing circuit means; coupling means forming a connection between the heater element and the flame sensing circuit;more » detector circuit means for detecting the flow between the electrode means and the heater element of current rectified by flame in the zone, and producing in response an output signal; electrical switch means connected between the heater element and the heater secondary winding; and valve control circuit means for maintaining the valve means open in response to the output signal.« less