Ultra-compact system for characterization of physical, chemical and ignition properties of fuels

Patent metadata

Field	Value
Publication number	US-11085910-B2
Application number	US-201916433842-A
Country	US
Kind code	B2
Filing date	Jun 6, 2019
Priority date	Sep 9, 2016
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

The present disclosure relates to a miniaturized fuel laboratory system that makes use of a housing, a processor housed within the housing, and a fuel inlet port supported from the housing for receiving a quantity of fuel to be used as a fuel test sample. The system may also have at least one fuel sensor housed in the housing in communication with the fuel inlet port for receiving the fuel test sample and carrying out combustion thereof. An electronic component may be housed in the housing, which enables communication with an external remote subsystem. A database may be incorporated which contains at least one of stored fuel characteristics or stored fuel analysis models, accessible by the processor. The processor may use fuel oxidation information generated by the fuel sensor, and at least one of the stored fuel characteristics or stored combustion models, to determine at least one fuel characteristic of the fuel test sample.

First claim

What is claimed is:

1. A miniaturized fuel laboratory system, the system comprising:
a housing;
a processor housed within the housing;
a fuel inlet port supported from the housing for receiving a quantity of fuel to be used as a fuel test sample;
at least one fuel sensor housed in the housing in communication with the fuel inlet port for receiving the fuel test sample, the fuel sensor operating to carry out combustion of the fuel test sample to generate information relating to fuel oxidation of the test sample, for subsequent use in predicting a performance of the quantity of fuel in an internal combustion engine;
a communications component housed in the housing enabling communication with an external remote subsystem;
a database containing at least one of stored fuel characteristics or stored fuel analysis models, accessible by the processor; and
the processor using the information relating to fuel oxidation together with the stored fuel characteristics or stored fuel analysis models, to help predict the performance of the quantity of fuel in the internal combustion engine.

2. The system of claim 1 , wherein the communications component comprises an electronic input/output communications port enabling communication with an electronic control module (ECM) of a vehicle.

3. The system of claim 2 , wherein the processor is configured to use the information pertaining to fuel oxidation to assist the ECM in controlling at least one of:
mapping of a mass air flow sensor to change an air/fuel ratio being used by an engine of the vehicle;
valve timing and lift profile of a valve train of the engine;
spark timing and ignition energy for the engine;
injection characteristics on each injector of each cylinder of an engine, including number of injections, timing for each injection, and a profile of each injection event;
fuel injector pressure for the engine;
a wastegate of a turbocharger of the engine;
boost of a turbocharger of the engine;
boost of a supercharger of the engine; and
engine temperature set-point.

4. The system of claim 1 , wherein the system further comprises a distillation curve sensor for measuring a volume of liquid in a mixture that has evaporated at a given temperature, and providing information regarding at least one of a boiling point temperature or enthalpy of vaporization.

5. The system of claim 1 , further comprising a surface tension sensor for measuring a resistive force of a surface film of a liquid caused by an attraction of molecules in a surface layer by a bulk of the liquid, which tends to minimize surface area.

6. The system of claim 1 , further comprising a calorimetry sensor for measuring a chemical energy released by fuel and oxidizer mixtures, including at least one of an increased heating value or a decreased heating value.

7. The system of claim 1 , wherein the at least one fuel sensor comprises a flame speed sensor for measuring a propagation of a flame front while a fuel and an oxidizer are consumed in a flame.

8. The system of claim 1 , wherein the at least one fuel sensor comprises at least one of:
a heat of combustion sensor which senses an amount of heat energy released during combustion of a fuel-oxidizer mixture; or
a auto-ignition sensor for measuring a time which it takes for a premixed volume of fuel and oxidizer to spontaneously ignite at a given initial temperature and pressure.

9. The system of claim 1 , further comprising a viscosity sensor for measuring an internal friction or resistance of parallel layers of fluid moving at different speeds for the fuel test sample.

10. The system of claim 1 , wherein the system is configured to discharge an unused portion of the fuel test sample which has been analyzed from the system.

11. The system of claim 1 , wherein the system is configured to direct a vapor-phased fuel sample, vaporized portion of an initially liquid fuel sample, or oxidized fuel sample which has been analyzed to at least one of an intake manifold and an evaporative emissions canister associated with the engine of a vehicle.

12. The system of claim 1 , wherein the communications component comprises a short range wireless radio for enabling the system to make a wireless communications link with the external remote subsystem.

13. The system of claim 1 , further comprising a power input port for receiving at least one of:
an external direct current (DC) signal to power the system; or
an external alternating current (AC) signal to power the system.

14. The system of claim 1 , wherein the system includes an input for receiving at least one of:
information on a crank angle from a crank angle encoder associated with an engine of a vehicle;
information from an emissions related component of a vehicle; and
information from an in-cylinder pressure sensor of a vehicle, wherein the in-cylinder pressure sensor senses a pressure within a cylinder of an engine of the vehicle.

15. The system of claim 1 , wherein the system comprises an output for outputting an electrical signal to a mass air flow sensor of a vehicle.

16. The system of claim 1 , wherein the system comprises an input for receiving information from at least one of:
a fuel density sensor; or
a stoichiometry sensor.

17. A miniaturized, hand holdable fuel laboratory system, the system comprising:
a housing;
a processor housed within the housing;
a fuel inlet port supported from the housing for receiving a quantity of fuel to be used as a fuel test sample;
at least one fuel sensor housed in the housing in communication with the fuel inlet port for receiving the fuel test sample, the test fuel sample forming a quantity of fuel no greater than 100 milliliters;
a communications component housed in the housing and enabling bidirectional communication with an external remote subsystem;
at least one port configured to receive available information from the external remote subsystem, and wherein the external remote subsystem is associated with an internal combustion engine;
a database containing stored fuel characteristic information accessible by the processor;
the processor using information obtained by at least a subplurality of the fuel sensor, the database and the information from the external remote subsystem, to determine at least one measured fuel characteristic of the fuel test sample.

18. The system of claim 17 , wherein the processor in configured to use information obtained from the database, the information obtained from the external remote subsystem, and information from the fuel sensor, to determine the at least one fuel characteristic of the fuel test sample.

19. The system of claim 17 , wherein the at least one fuel sensor comprises at least one of:
a calorimetry sensor for measuring a chemical energy released by fuel and oxidizer mixtures, including at least one of an increased heating value or a decreased heating value;
a heat of combustion sensor which senses an amount of heat energy released during combustion of a fuel-oxidizer mixture;
an auto-ignition sensor for measuring a time which it takes for a premixed volume of fuel and oxidizer to spontaneously ignite at a given initial temperature and pressure;
a viscosity sensor for measuring an internal friction or resistance of parallel layers of fluid moving at different speeds for the fuel test sample;
a distillation curve sensor for measuring a volume of liquid in a mixture that has evaporated at a given temperature, and providing information regarding at least one of a boiling point temperature or enthalpy of vaporization; o

Assignees

• Mcnenly Matthew J
• Oxberry Geoffrey M
• Ismail Ahmed E
• Killingsworth Nicholas
• Flowers Daniel L
• L Livermore Nat Security Llc

Inventors

• Mcnenly Matthew J
• Oxberry Geoffrey M
• Ismail Ahmed E
• Killingsworth Nicholas
• Flowers Daniel L

Classifications

• F02D19/0649

  Liquid fuels having different boiling temperatures, volatilities, densities, viscosities, cetane or octane numbers · CPC title

• G01N33/2817 Primary

  using a test engine · CPC title

• Y02T10/30

  Use of alternative fuels, e.g. biofuels · CPC title

• F02D19/0626

  Measuring or estimating parameters related to the fuel supply system · CPC title

• G01K17/14

  using mechanical means for both measurements · CPC title