Patents by Inventor Hans-Juergen Kaiser

Hans-Juergen Kaiser 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).

  • Camshaft for multi-valve internal combustion engine
    Patent number: 5215048
    Abstract: A camshaft (16) is described for operating the primary and secondary inlet or exhaust valves (12) of an internal combustion engine having multiple valves in each cylinder, the camshaft having cams (18a, 18b) of substantially the same cam profile and phase for operating the primary and secondary valves of each cylinder. In accordance with the invention, in order to reduce valve train noise at least the trailing ramps of the cams (18a, 18b) are offset by between 1.degree. and 3.degree. relative to one another.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: June 1, 1993
    Assignee: Ford Motor Company
    Inventors: Hans-Juergen Kaiser, Patrick Philips, Bernhard Rosemann, Andreas Schamel, Rainer Steinberg