Patents by Inventor Darren J. Grennall

Darren J. Grennall 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).

  • Internal combustion engine
    Patent number: 7152568
    Abstract: A cylinder block for an internal combustion engine which, in use, supports a rotary crankshaft 40, the block having pairs of opposed lock width surfaces 37 formed thereon for forming an interference fit with respective co-operating lock width surfaces 38 on the crankshaft bearing caps 34 which in use are secured to respective bearing cap support surfaces 36 also formed on the block 31. The lock width surfaces 37, 38 are spaced from the respective bearing cap support surfaces 36 so as to improve stress cracking resistance of the block 31.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: December 26, 2006
    Assignee: Ford Global Technologies, LLC
    Inventors: Darren J. Grennall, John Rowley, Paul N. Turner, Derek Banks, Mark Fowler, Mark Danby