Patents by Inventor Thomas Poorman

Thomas Poorman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Fuel injectors with integral fiber optic pressure sensors and associated compensation and status monitoring devices
    Publication number: 20060170909
    Abstract: Fuel injectors (10) for internal combustion engines are modified and equipped with fiber optic fuel pressure sensors (12) and fiber optic combustion pressure sensors (14). The combustion pressure sensors (14) are located in separate channels (26) formed in the fuel injectors with the lower portion (22) of the channels leading to the combustion chambers. Above the combustion pressure sensors (14) are fiber optic leads (24). In the preferred embodiments the sensors (46) are equipped with diaphragms (40) of novel shape (48) and employ multiple pairs of fibers (86, 88), temperature sensitive components (72, 74, 126) and novel compensation and status monitoring circuits (FIGS. 6, 9, 10, 14, 15, 18).
    Type: Application
    Filed: September 22, 2003
    Publication date: August 3, 2006
    Inventors: Marek Wlodarczyk, Thomas Poorman